PVG3A503A01R00 [MURATA]

RESISTOR, TRIMMER, 1 TURN(S), 0.25W, 50000ohm, CHIP;
PVG3A503A01R00
型号: PVG3A503A01R00
厂家: muRata    muRata
描述:

RESISTOR, TRIMMER, 1 TURN(S), 0.25W, 50000ohm, CHIP

电阻器
文件: 总8页 (文件大小:143K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
Trimmer Potentiometers  
SMD Sealed Type 3mm Size PVG3 Series  
3.6  
2.0  
0.45  
0.4 Depth  
Features  
#2  
1. Sealed construction protects the internal from dust  
and liquid, which achieves stable performance.  
2. Driver plate with cross-slot is suitable for  
automatic adjustment.  
0.1 Min.  
0.6  
#3  
#1  
2.3  
1.00±0.15  
3. Rotor with large diameter and deep groove improves  
driver insertion.  
#2  
4. Regarding the terminal shape, both J-lead and gull  
wing type are available as standard ones.  
5. 3mm and 4mm land pattern can be used without change.  
(Gull wing is suitable for 4mm size land pattern.)  
6. Heat resistance performance enables high  
temperature peak re-flow soldering.  
#1  
#3  
PVG3A  
PVG3G  
PVG3K  
CLOCKWISE  
0.75±0.15  
in mm  
(
)
Tolerance : ±0.3  
3.6  
2.0  
0.45  
4
7. The lead terminals are plated with Sn, which  
achieves Pb free.  
0.4 Depth  
#2  
0.1 Min.  
Applications  
#3  
#1  
2.3  
1. Small sensors  
2. Optical Transceiver Module  
4. Printer  
1.00±0.15  
3. Copier  
5. Compact Power Supply 6. Wireless Radio module  
#2  
#1  
#3  
CLOCKWISE  
(
0.75±0.15  
in mm  
)
Tolerance : ±0.3  
3.6  
1.1  
(2.5)  
2.0  
#2  
#3  
#1  
0.8±0.2  
0.5  
0.5  
0.55 Depth  
2.3  
#2  
#1  
#3  
CLOCKWISE  
in mm  
Tolerance : ±0.3  
(
)
Power Rating  
Number of Turns  
(Effective Rotation Angle)  
TCR  
(ppm/°C)  
Part Number  
PVG3p100A01  
Soldering Method  
Total Resistance Value  
(W)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
1(210°±10°)  
1(210°±10)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
10ohm ±20%  
20ohm ±20%  
50ohm ±20%  
100ohm ±20%  
200ohm ±20%  
500ohm ±20%  
1k ohm ±20%  
2k ohm ±20%  
5k ohm ±20%  
10k ohm ±20%  
20k ohm ±20%  
50k ohm ±20%  
±250  
±250  
±250  
±250  
±100  
±100  
±100  
±100  
±100  
±100  
±100  
±100  
PVG3p200A01  
PVG3p500A01  
PVG3p101A01  
PVG3p201A01  
PVG3p501A01  
PVG3p102A01  
PVG3p202A01  
PVG3p502A01  
PVG3p103A01  
PVG3p203A01  
PVG3p503A01  
Continued on the following page.  
24  
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
Continued from the preceding page.  
Power Rating  
Number of Turns  
(Effective Rotation Angle)  
TCR  
(ppm/°C)  
Part Number  
PVG3p104A01  
Soldering Method  
Total Resistance Value  
(W)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
0.25(70°C)  
Reflow  
Reflow  
Reflow  
Reflow  
Reflow  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
1(210°±10°)  
100k ohm ±20%  
200k ohm ±20%  
500k ohm ±20%  
1M ohm ±20%  
2M ohm ±20%  
±100  
±100  
±100  
±100  
±100  
PVG3p204A01  
PVG3p504A01  
PVG3p105A01  
PVG3p205A01  
The blank column is filled with the code of adjustment direction and lead type A (top, J-hook), G (top, gull-wing), or K (rear).  
Construction  
PVG3A/PVG3G  
PVG3K  
Rotor  
#2-Terminal  
Cover  
Rotor  
2
Cover  
#2-Terminal  
2
Case  
M
Case  
M
#3-Terminal  
#3-Terminal  
Wiper  
4
Resistive  
Element  
Resistive  
Element  
Wiper  
Ceramic  
Substrate  
Ceramic  
Substrate  
O-Ring  
O-Ring  
#1-Terminal  
#1-Terminal  
Standard Land Pattern  
PVG3A  
PVG3G  
1.4  
1.4  
1.1  
1.2  
1.1  
1.1  
1.2  
1.1  
in mm  
Tolerance : ±0.1  
in mm  
Tolerance : ±0.1  
(
)
(
)
Continued on the following page.  
25  
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
Continued from the preceding page.  
Standard Land Pattern  
PVG3K  
1.5  
1.2  
1.1  
1.2  
in mm  
Tolerance : ±0.1  
(
)
Characteristics  
TR  
±2%  
Temperature Cycle  
V.S.S ±1%  
TR ±2%  
V.S.S ±1%  
Humidity  
4
IR  
10Mohm min.  
TR  
±1%  
Vibration (20G)  
Shock (100G)  
V.S.S ±1%  
TR ±1%  
V.S.S ±1%  
TR ±3% or 3ohm max.,  
whichever is greater  
V.S.S ±1%  
TR ±2%  
V.S.S ±2%  
TR ±3%  
V.S.S ±2%  
TR ±3% or 2ohm max.,  
Temperature Load Life  
Low Temperature Exposure  
High Temperature Exposure  
Rotational Life (50cycles)  
whichever is greater  
TR  
: Total Resistance Change  
V.S.S : Voltage Setting Stability  
IR : Insulation ResistanceR  
26  
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
PVG3 Series Notice  
Notice (Operating and Storage Conditions)  
1. Store that the temperature is -10 to +40deg. C and  
the relative humidity is 30-85%RH.  
using.  
(1) Corrosive gaseous atmosphere.  
(Ex. Chlorine gas, Hydrogen sulfide gas, Ammonia  
gas, Sulfuric acid gas, Nitric oxie gas, etc.)  
(2) In liquid.  
2. Do not store in or near corrosive gases.  
3. Use within six months after delivery.  
4. Open the package just before using.  
5. Do not store under direct sunlight.  
(Ex. Oil, Medical liquid, Organic solvent, etc.)  
(3) Dusty/dirty atmosphere.  
6. The trimmer potentiometer should not be used under  
the following environmental conditions:  
(4) Direct sunlight.  
If you use the trimmer potentiometer in an  
environment other these listed below, please  
consult with Murata factory representative prior to  
(5) Static voltage nor electric/magnetic fields.  
(6) Direct sea breeze.  
(7) Other variations of the above.  
Notice (Rating)  
1. When using with partial load (rheostat), minimize  
the power depend on the resistance value.  
2. The maximum input voltage to a trimmer  
potentiometer should not exceed (P•R)^1/2 or the  
maximum operating voltage, whichever is smaller.  
3. The maximum input current to a trimmer  
potentiometer should not exceed (P/R)^1/2 or the  
allowable wiper current, whichever is smaller.  
4
Notice (Soldering and Mounting)  
1. Soldering  
2. Mounting  
(1) Standard soldering condition  
(a) Reflow soldering :  
(1) Use our standard land dimension. Excessive land  
area causes displacement due to effect of the  
surface tension of the solder. Insufficient  
land area leads to insufficient soldering  
strength of the chip.  
Refer to the standard temperature profile.  
(b) Soldering iron  
Temperature of tip : 260deg. C max.  
Soldering time  
Diameter of tip  
Wattage of iron  
: 3sec. max.  
: 2mm dia. max.  
: 30W max.  
(2) Do not apply excessive force (preferable 4.9N  
(Ref.; 500gf) max.), when the trimmer  
potentiometer is mounted to the PCB.  
(3) Do not warp and/or bend PC board to prevent  
trimmer potentiometer from breakage.  
(4) In chip placers, the size of the cylindrical  
pick-up nozzle should be outer dimension  
2.5-2.8mm dia. and inner dimension  
2.0-2.5mm dia..  
Before using other soldering conditions more  
than those listed above, please consult with  
Murata factory representative prior to using.  
If the soldering conditions are not  
suitable,e.g., excessive time and/or excessive  
temperature, the trimmer potentiometer may  
deviate from the specified characteristics.  
(2) Can not be soldered using the flow soldering  
method. If you use the flow soldering method,  
the trimmer potentiometer may not function.  
(3) The soldering iron should not come in contact  
with the case of the trimmer potentiometer. If  
such contact does occur, the trimmer  
3. Cleaning  
(1) Isopropyl-alcohol and Ethyl-alcohol are  
applicable solvent for cleaning. If you use any  
other types of solvents, please consult with  
Murata factory representative prior to using.  
(2) Less than 3 minutes of total cleaning time by  
dipping, vapor and ultra-sonic method.  
(3) In case of ultra-sonic cleaning method, cleaning  
condition should be as follows.  
potentiometer may be damaged.  
(4) Apply the appropriate amount of solder paste.  
If the amount of solder paste applied to the  
land is insufficient, the required adhesive  
strength cannot be obtained. If an excessive  
amount of solder paste is applied, solder  
bridging or flux overflow to the resistive  
element surface can occur.  
(a) Power  
: 600W (67lit.) max.  
(b) Frequency : 28kHz  
(c) Temperature : Ambient temperature  
Due to ultra-sonic cleaning equipment peculiar  
self resonance point and cleaning compatibility  
usually depends on the jig construction and/or  
Continued on the following page.  
27  
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
PVG3 Series Notice  
Continued from the preceding page.  
the cleaning condition such as the depth of  
immersion, please check the cleaning equipment  
to determine the suitable conditions.  
If the condition is not suitable, the trimmer  
potentiometer may deviate from specified  
characteristics.  
Reflow Soldering Standard Profile  
For reflow soldering  
Gradual Cooling  
(in the air)  
Pre-heating(in the air)  
Soldering  
230  
200  
100  
0
60~120 sec.  
30 sec. max.  
Time  
(Melting zone)  
4
Notice (Handling)  
1. Use suitable screwdrivers that fit comfortably in  
2. Don't apply more than 9.8N (Ref.; 1kgf) of twist  
and stress after mounted onto PCB to prevent  
contact intermittence.  
driver slot.  
* Recommended screwdriver for manual adjustment  
TORAY INDUSTRIES, INC. : SA-2225  
(Murata P/N : KMDR070)  
3. When adjusting with an adjustment tool, the applied  
force to the adjustment screw should not exceed  
4.9N (Ref.; 500gf). If excessive force is applied,  
the trimmer potentiometer may not function due to  
damage.  
* Recommended screwdriver bit for automatic  
adjustment  
TORAY INDUSTRIES, INC. : JB-2225  
(Mutata P/N : KMBT070)  
4. When using a lock paint to fix slot position,  
please use adhesive resin without chlorine or  
sulfur (Three-bond "1401series").  
We can supply above screwdrivers.  
If you place order, please nominate Murata P/N.  
Notice (Other)  
1. Please make sure that your product has been  
evaluated and confirmed against your  
specifications when our product is mounted to your  
product.  
2. Murata connot guarantee trimmer potentiometer  
integrity when used under conditions other than  
those specified in this document.  
28  
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
SMDSealedType/LeadSealedType Specifications and Test Methods  
The following describes trimmer potentiometer testing conducted by Murata Manufacturing Co., Ltd. in accordance with MIL-R-22097 (Military specification  
for variable resistors, non-wirewound) and MIL-STD-202 (Test methods for electronic and electrical component parts).  
No.  
Item  
Test Methods  
Measure total resistance between the resistance element and terminals (#1 and #3) with the contact arm positioned  
against a stop. The positioning of the contact arm and terminal shall be the same for subsequent total resistance  
measurements on the same device. Use the test voltage specified in Table-1 for total resistance measurements.  
This voltage shall be used for all subsequent total resistance measurements.  
Total resistance,  
Nominal (ohm)  
Maximum Test  
Voltage (V)  
1
Total Resistance  
10VRV100  
100FRV1k  
1kFRV10k  
10kFRV100k  
100kFR  
1.0  
3.0  
10.0  
30.0  
100.0  
Table-1 Total resistance test voltage  
Position the contact arm at the extreme counterclockwise limit of mechanical travel and measure the resistance  
between the contact arm and the corresponding end terminal. Then, position the contact arm at the extreme clock-  
wise limit of mechanical travel and measure the resistance between the contact arm and the corresponding end ter-  
minal. During this test, take suitable precautions to ensure that the rated current of the resistance element is not  
exceeded.  
2
Residual Resistance  
Contact resistance variation shall be measured with the measuring circuit shown in Figure-1, or its equivalent. The  
adjustment rotor (screw) shall be rotated in both directions through 90% of the actual effective-electrical rotational  
angle(number of turns) for a total of 6 cycles. Only the last 3 cycles shall count in determining whether or not a con-  
tact resistance variation is observed at least twice in the same location, exclusive of the roll-on or roll-off points  
where the contact arm moves from the termination, on or off, the resistance element. The rate of rotation of the  
adjustment rotor (screw) shall be such that the adjustment rotor (screw) completes 1 cycle for 5 seconds minimum to  
2 minutes maximum. The test current used shall follow the value given in Table-2 unless otherwise limited by power  
rating.  
Standard total resistance  
Oscilloscope  
Test current  
Rx  
#3  
#1  
R (ohm)  
Contact Resistance  
Variation  
3
RV100  
20mA  
10mA  
4mA  
2mA  
1mA  
200µA  
100µA  
50µA  
30µA  
#
2
Constant Current Source not to  
Exceed Rating of Unit Being  
100FRF500  
500VRF1k  
1kVRF2k  
2kVRF50k  
50kVRF200k  
200kVRF1M  
1MVRF2M  
2MVR  
Proofreaded  
Resistance  
AC  
Amplifier  
Rx : Trimmer Potentiometer  
Oscilloscope bandwidth :100Hz to 50kHz  
Figure-1 CRV measuring circuit  
Table-2 Test current for CRV  
The trimmer potentiometer shall be subjected to the following each temperature (see Table-3) for 30-45 minutes.  
Temperature coefficient of resistance shall be applied to the following formula.  
R2 – R1  
R1 (T2 – T1)  
TCR=  
Z 106 (ppm/°C)  
T1 : Reference temperature in degrees celsius  
T2 : Test temperature in degrees celsius  
R1 : Resistance at reference temperature ohm  
R2 : Resistance at test temperature in ohm  
Temperature Coefficient of  
Resistance  
4
Sequence  
Temperature(°C)  
1*  
2
3
4*  
5
6
Min. operating  
temperature  
Max. operating  
temperature  
+25  
-15  
+25  
+65  
Note) * : Reference temperature  
Table-3 Test temperatures  
The wiper shall be set at approximately 40% of the actual effective-electrical rotational angle (number of turns). An  
adequate DC test potential shall be applied between the terminal #1 and the terminal #3. The voltage between the  
terminal #1 and the terminal #3, and the voltage between the terminal #1 and the terminal #2, shall be measured  
and applied to the following formula.  
E
e'  
E
e
E
9
Voltage Setting  
Stability  
Voltage setting stability=  
e : Before test  
Z100 (%)  
(
)
5
#1  
#3  
(The voltage between the terminal #1 and the terminal #2)  
e': After test  
#2  
e
(The voltage between the terminal #1 and the terminal #2)  
E: The voltage between the terminal #1 and the terminal #3  
Figure-2  
Continued on the following page.  
72  
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
SMDSealedType/Lead Sealed Type Specifications and Test Methods  
Continued from the preceding page.  
No.  
Item  
Test Methods  
The trimmer potentiometer shall be subjected to Table-4 temperature for 5 cycles. The trimmer potentiometer shall  
be removed from the chamber, and maintained at a temperature of 25±5°C for 1~2 hours.  
Sequence  
1
2
3
4
+125±3  
+25±2 +150±3 +25±2  
+60±3  
PV-- series  
PV22 series  
PVF2 series  
Temp.  
(°C)  
-55±3  
6
Temperature Cycle  
-25±3  
30  
Time (min.)  
5 max.  
30  
5 max.  
Table-4 One cycle of temperature cycle.  
1) PVC6, PV12, PV32, PV34 PVM4A---B01series  
The trimmer potentiometer shall be placed in a chamber at a temperature of 40±2°C and a humidity of 90~95% with-  
out loading for 250±8 hours. The trimmer potentiometer shall be removed from the chamber, and maintained at a  
temperature of 25±5°C for 5±1/6 hours.  
2) PVF2series  
The trimmer potentiometer shall be placed in a chamber at 60±2°C and 90~95% without loading for 1000±12 hours.  
The trimmer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for  
5±1/6 hours  
2) PVG3, PVG5, PV01, PV22, PV23, PV36, PV37series  
The trimmer potentiometer shall be subjected Figure-3 the programmed humidity environment for 10 cycle. The trim-  
mer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for 5±1/2 hours.  
MIL-STD-202 METHOD 106  
80-98%RH  
80-98%RH  
70  
65  
60  
55  
50  
45  
40  
35  
30  
25  
20  
90-98%RH  
90-98%RH  
90-98%RH  
INITIAL CONDITIONING  
IN A DRY OVEN  
24 HOURS  
RATE OF CHANGE OF TEMPERATURE IS UNSPECIFIED.  
HOWEVER, SPECIMENS SHALL NOT BE SUBJECTED TO  
RADIANT HEAT FROM CHAMBER-CONDITIONING  
PROCESSES  
HUMIDITY  
UNCONTROLLED  
7
Humidity  
END OF FINAL CYCLE  
MEASUREMENTS AS  
SPECIFIED IN 3.6  
+10°C  
-2°C  
CIRCULATION OF CONDITIONING AIR SHALL  
BE AT A MINIMUM CUBIC RATE PER MINUTE  
EQUIVALENT TO 5 TIMES THE VOLUME OF  
THE CHAMBER  
INITIAL MEASUREMENTS  
15 AS SPECIFIED IN 3.2  
10  
5
VOLTAGE APPLIED AS SPECIFIED IN 3.5  
0
UNLESS OTHERWISE SPECIFIED  
TEMPERATURE TOLERANCE IS,  
-5  
STEPS 7a AND 7b PERFORMED DURING ANY  
5 OF THE FIRST 9 CYCLES. HUMIDITY  
UNCONTROLLED DURING STEPS 7a AND 7b  
ONLY  
-10 ±2°C AT ALL POINTS WITHIN THE  
STEP 7b  
STEP 7a  
CHAMBER EXCEPT THE IMMEDIATE  
VICINITY OF THE SPECIMENS AND  
THE CHAMBER SURFACES  
PRIOR TO FIRST CYCLE  
UNLESS OTHERWISE  
SPECIFIED  
STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6  
STEP 7  
ONE CYCLE 24 HOURS. REPEAT AS SPECIFIED IN 3.3  
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Figure-3  
1) PV-- series  
The trimmer potentiometer shall be vibrated throughout the frequency range at the 20G level. A complete frequency  
range, 10Hz to 2000Hz and back, shall be made within 15 minutes for a total of 4 sweeps in each of the three axis  
direction for a total of 12 sweeps.  
8
9
Vibration  
2) PVF2 series  
The trimmer potentiometer shall be subjected to vibration at 0.3 inch amplitude. The frequency shall be varied uni-  
formly between the approximate limits of 10 Hz and 55Hz. This motion shall be applied for preiod of 2 hours in each  
of 3 mutually perpendicular direction (total of 6 hours).  
1) PV-- series  
The trimmer potentiometer shall be shocked at the 100G (50G for PV22 and PV23series) level and shall be subject-  
ed to 4 shocks in each of the three axis direction for a total of 12 shocks.  
2) PVM4A---B01series  
Shock  
The trimmer potentiometer shall be shocked at the 100G level and shall be subjected to 3 shocks in each of the six  
axis direction for a total of 18 shocks.  
Full rated continuous working voltage not exceeding the maximum rated voltage shall be applied intermittently  
between the terminal #1 and the terminal #3 of the trimmer potentiometer, 1.5 hours on and 0.5 hours off, for a total  
of 1000±12 hours, at a temperature of 70±2°C (85±2°C for PV01 and PV37series, 50±2°C for PVF2series). The trim-  
mer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for 1 to 2 hours.  
10 Temperature Road Life  
9
The trimmer potentiometer shall be placed in a camber at a temperature of 125±3°C (150±3°C for PV12series)  
250±8 hours without loading. The trimmer potentiometer shall be removed from the camber, and maintained at a  
temperature of 25±5°C for 1 to 2 hours.  
High Temperature Exposure  
(Except for PVF2)  
11  
The trimmer potentiometer shall be placed in a camber at a temperature of -55±3°C for 1 hours without loading. Full  
rated continuous working voltage not exceeding the maximum rated voltage shall be applied for 45 minutes. The  
trimmer potentiometer shall be removed from the chamber, and maintained at a temperature of 25±5°C for approxi-  
mately 24 hours.  
Low Temperature Exposure  
(Except for PVF2 and  
PVM4A---B01)  
12  
Continued on the following page.  
73  
Please read rating and !CAUTION (for storage and operating, rating, soldering and mounting, handling) in this PDF catalog to prevent smoking and/or burning, etc.  
This catalog has only typical specifications. Therefore, you are requested to approve our product specification or to transact the approval sheet for product specificaion before ordering.  
!Note  
R50E12.pdf 02.9.5  
SMDSealedType/LeadSealedType Specifications and Test Methods  
Continued from the preceding page.  
No.  
13  
Item  
Test Methods  
Low Temperature Operation  
(Only for PVF2 and  
PVM4A---B01)  
The trimmer potentiometer shall be placed in a camber at a temperature of -25±3°C (-55±3°C for PVM4A---  
B01series) 48±4 hours without loading. The trimmer potentiometer shall be removed from the chamber, and main-  
tained at a temperature of 25±5°C for 5±1/6 hours  
1)PV-- series  
Full rated continuous working voltage not exceeding the maximum rated voltage shall be applied with the circuit  
shown in the figure. The adjustment rotor (screw) shall be continuously cycled through not less than 90% of effec-  
tive-electrical rotational angle (number of turns), at the rate of 1 cycle for 5 seconds minimum to 2.5 a minutes maxi-  
mum for total of 200 cycles.  
Resistor 1  
Resistor 2  
End Terminal  
End Terminal  
End Terminal  
End Terminal  
14 Rotational Life  
DC supply  
Figure-4  
2) PVG3, PVG5series  
The adjustment rotor (screw) shall be continuously cycled though not less than 90% of effective- electrical rotational  
angle (number of turns), at the rate of 1 cycle for 5 seconds minimum to 2.5 minutes maximum for a total of 50 (100  
for PVG5) cycles, without loading.  
3) PVF2, PVM4A---B01series  
The wiper shall be rotated over 90% of the effective rotational angle without loading at a speed of 10 cycles per  
minute, for 100 cycles continuously.  
9
74  

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