ST-7TB503 [VISHAY]
Trimmer, Ruthenium Oxide, 0.25W, 50000ohm, 112V, 20% +/-Tol, -100,100ppm/Cel, 3125;
| 型号： | ST-7TB503 |
| 厂家： | 
VISHAY |
| 描述： | Trimmer, Ruthenium Oxide, 0.25W, 50000ohm, 112V, 20% +/-Tol, -100,100ppm/Cel, 3125 电阻器 |
| 文件： | 总4页 (文件大小：230K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CCOOPPAALL EELLEECCTTRRONICS
3 TURNS
SURFACE MOUNT TYPE TRIMMERS
ST-7
INTERNAL STRUCTURE
13
12
8
1
9
11
3
10
4
7
6
5
2
Part name
Material
Flammability
■ FEATURES
PPS
UL-94V-0
Rotor gear
Base element
Terminal pin
Resistive element
Electrode
1
2
3
4
5
6
7
8
9
!
!
!
!
(Polyphenylenesulphide)
■ Fine adjustment is possible
■ Automatic mounting is possible (Taping)
■ Flow/reflow soldering is possible
■ Sealed construction (Washable)
Ceramic
Copper alloy, Solder-plated
—
2
RuO cermet
Ag-Pd cermet
PPS
UL-94V-0
Housing base
Wiper
(Polyphenylenesulphide)
—
Multi metal alloy
Shaft
PPS
UL-94V-0
UL-94HB
—
(Polyphenylenesulphide)
Housing
Shaft “O” ring
Base “O” ring
Clutch spring
Cover
Silicone rubber
Stainless steel
CFCs, Halon, Carbon tetrachloride and designated bromic flame
retardant PBBOs and PBBs are not used in our products.
■ PART NUMBER DESIGNATION
S T - 7 T A 1 k Ω ( 1 0 2 )
Resistance code
Series name
Form of packaging
Resistance value
T : Taping (Reel)
Blank : Bulk in vinyl bags
Product shape (Shape of terminal)
A : J-hook
B : Gull wing
■ Please refer to the LIST OF PART NUMBERS when placing orders.
■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
CCOOPPAALL EELLEECCTTRRONICS
ST-7
SURFACE MOUNT TYPE TRIMMERS
■ LIST OF PART NUMBERS
<Nominal resistance values>
Form of packaging
50 Ω 100 Ω 200 Ω 500 Ω 1 kΩ
2 kΩ
5 kΩ
Adjustment
position
Shape of terminal
J-hook)
Bulk packaging
Taping (reel)
10 kΩ 20 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ
Fig. 1
(
A
B
ST-7TA
ST-7A
Top
adjustment
■ The above part numbers are all available with the respective combination of
<Nominal resistance values> (Fig. 1).
■ Verify the above part numbers when placing orders.
■ Taping version must be purchased in reel units.
(Gull wing)
ST-7TB
ST-7B
Pieces in package
500 pcs./reel
50 pcs./pack
■ ELECTRICAL CHARACTERISTICS
■ MECHANICAL CHARACTERISTICS
3 turns
Mechanical turn
Operating torque
Mechanical stop
Rotational life
50 Ω ~ 1 MΩ
± 20 %
Nominal resistance range
Total resistance tolerance
Power ratings
5 mN·m {51 gf·cm} maximum
Clutch action
100 cycles
0.25 W (70 °C) 0 W (125 °C)
≤
_
[∆R/R ± (2 Ω +3 %)]
Resistance law
Linear law
DC200 V or power rating, whichever is smaller
100 mA or power rating, whichever is smaller
2.5 turns
5 N {0.51 kgf} minimum
235 °C, 2 s
Thrust to shaft
Solderability
Maximum input voltage
Maximum wiper current
Effective electrical turn
End resistance
Shear (Adhesion)
Substrate bending
Pull-off strength
5 N {0.51 kgf} 10 s
Width 90 mm, bend 3 mm,
5 s, 1 time
5 N {0.51 kgf} 10 s
1 % or 2 Ω, whichever is greater
1 % or 3 Ω, whichever is greater
−55 ~ +125 °C
{
} : Reference only
C.R.V.
■ ENVIRONMENTAL CHARACTERISTICS
Operating temp. range
Temp. coefficient
Insulation resistance
Dielectric strength
Net weight
50 Ω : ± 250 ppm/°C maximum
100 Ω ~ 1 MΩ : ± 100 ppm/°C maximum
Test item
Thermal shock
Humidity
Test conditions
Specifications
≤
_
[∆R/R 2 %]
−65 ~ +125 °C (0.5 h), 5 cycles
1000 MΩ minimum (DC500 V)
AC600 V, 60 s
≤
_
[S.S. 1 %]
−10 ~ +65 °C (80 ~ 98 %RH),
≤
_
[∆R/R 2 %]
10 cycles, 240 h
2
981 m/s , 6 ms
Shock
6 directions for 3 times each
≤
_
[∆R/R 1 %]
Approx. 0.25 g
Amplitude of 1.52 mm or Acceleration
≤
_
[S.S. 1 %]
2
Vibration
of 196 m/s , 10~2000 Hz, 3 directions,
12 times each
≤
_
[∆R/R 3 %]
70 °C, 0.25 W, 1000 h
Load life
≤
_
[S.S. 1 %]
≤
_
[∆R/R 2 %]
−55 °C, 2 h
125 °C, 250 h
Low temp. operation
High temp. exposure
Immersion seal
≤
_
[S.S. 2 %]
≤
_
[∆R/R 3 %]
≤
_
[S.S. 2 %]
No leaks
85 °C, 60 s
(No continuous bubbles)
≤
_
[∆R/R 1 %]
260 °C, 10 s or 215 °C, 35 s
Soldering heat
∆R/R : Change in total resistance
S.S. : Setting stability
■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
CCOOPPAALL EELLEECCTTRRONICS
ST-7
SURFACE MOUNT TYPE TRIMMERS
■ RECOMMENDED P.C.B. PAD
■ MAXIMUM INPUT RATINGS
OUTLINE DIMENSIONS
(Unit: mm)
■ ST-7A
■ ST-7B
Resistance
code
Nominal resistance
Maximum input Maximum wiper
values (Ω)
voltage (V)
current (mA)
2
2
50
500
101
201
501
3.53
5.00
7.07
11.2
70.7
50.0
35.4
22.4
100
200
500
1 k
2 k
102
202
502
103
203
503
15.8
22.4
35.4
50.0
70.7
112
15.8
11.2
7.07
5.00
3.54
2.24
0
0
5 k
10 k
20 k
50 k
100 k
200 k
500 k
1 M
104
204
504
105
158
200
200
200
1.58
1.00
0.40
0.20
1.6
1.6
1.6
1.6
2.35
2.35
Note) The zero point is the center of mounting.
■ OUTLINE DIMENSIONS
Unless otherwise specified, tolerance : ± 0.3 (Unit: mm)
■ ST-7A
1
3
Top adjustment
0.5 W × 1.8 L × 0.5 D
6.4
CW rotation
1.2
3.4
1.5
2
2
Solder-plated
t = 0.15
2 – 0.8
0.02 min.
1
3
2.3
Resistance code & Production date code
■ ST-7B
Top adjustment
0.5 W × 1.8 L × 0.5 D
6.4
1.2
3.4
2
1.5
Solder-plated
t = 0.15
2 – 0.8
1
3
2.3
0.02 min.
Resistance code & Production date code
■ The ST-7 series has a different terminal arrangement from the ST-3 and ST-4 series. Pay attention to the location
of terminals number 1 and 3. (Resistance decreases when the shaft is turned CCW.)
■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
CCOOPPAALL EELLEECCTTRRONICS
ST-7
SURFACE MOUNT TYPE TRIMMERS
■ PACKAGING SPECIFICATIONS
<Taping packaging specifications>
■ Taping version is packaged in 500 pcs. per reel.
Orders will be accepted for units of 500 pcs., i.e., 500,
1000, 1500 pcs., etc.
Maximum number of consecutive missing pieces=2
Leader length and reel dimension are shown in the dia-
grams below.
■ Taping version is boxed with one reel (500 pcs.).
■ EMBOSSED TAPE DIMENSIONS
■ REEL DIMENSIONS
(Unit: mm)
16.4+2
0
21±0.8
Empty
Filled
Empty
2±0.5
End
Head
13±
0.2
40 mm min.
20 pitches min.
Leader
250±2
Direction of feed
22.4 max.
400 mm min.
■ Test method for peeling strength of seal tape
■ Reel & embossed tape materials
Embossed tape: Plastic
Reel: Paper
■ Embossed tape pull strength
9.8 N {1kgf} minimum
■ Peeling strength of seal tape
0.098~0.69 N {10~70gf}
Seal cover tape
Peel direction
(300 mm/min)
165°~180°
Direction of feed
{
} : Reference only
Carrier tape
■ ST-7TA
■ ST-7TB
φ
φ
0.4±0.1
0.4±0.1
12±0.1
12±0.1
4±0.1
Installation example
(ST-7A)
Installation example
(ST-7B)
4±0.1
2±0.1
2±0.1
Direction of feed
5
Direction of feed
5
<Bulk packaging specifications>
■ Unit of bulk in vinyl bag packaging is 50 pcs. per pack.
■ Boxing of bulk in vinyl bags is performed with 200 pcs.
per box.
■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request.
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