WM07CR100BTLQ 概述
High Precision Thin Film MELF Resistors
WM07CR100BTLQ 数据手册
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PDF下载Approval Sheet
WM07B_Q, WM04B_Q, WM07C_Q,
WM04C_Q
±1%, ±0.5%, ±0.25%, ±0.1%
TC50 , TC25
High Precision Thin Film MELF Resistors
Size: 0207, 0204
AEC-Q200 Compliant
*Contents in this sheet are subject to change without prior notice.
Page 1 of 12
ASC_WMxxB&C_Q
JUL - 2018
Approval Sheet
FEATURE
1. SMD enabled structure thin film resistor
2. High reliability and stability of ±0.3% and below per customer request
3. High precision of TCR: 50 & 25 ppm/°C and below per customer request
4. Best in class pulse load capability
5. RoHS compliant and lead free
6. AEC-Q200 Compliant
APPLICATION
•
•
•
•
Medical equipment
Measuring instrument
Communication device
Power / Meter Converter
DESCRIPTION
A uniform alloy film is deposited on a high grade ceramic body (Al2O3) and achieved the desired temperature coefficient by
annealing. Nickel plated termination caps are firmly attached on the ceramic body. It is achieved the target value by
smoothly cutting a helical groove in the resistive layer without damaging the ceramic body. The resistive film is covered by
epoxy molding compound designed for electrical, mechanical and climatic protection. For environmental soldering issue,
Nickel plated terminations receive a final pure tin on it. Four color code rings designate the resistance value in accordance
with IEC 60062.
Fig 1. Construction of MELF
Page 2 of 12
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JUL - 2018
Approval Sheet
QUICK REFERENCE DATA
Item
Series No.
General Specification
WM07C_Q WM04B_Q
WM07B_Q
WM04C_Q
Size code
0207 ( 6123 )
±1%, ±0.5%, ±0.25%, ±0.1%
0204 ( 3715 )
Resistance Tolerance
Resistance Range
0.2Ω ~1M
0.2Ω ~1M
10Ω~1MΩ
10Ω~1MΩ
±50ppm/C
±25ppm/C
±50ppm/C
±25ppm/C
TCR (ppm/°C)
1/2W
300V
600V
1/4W
200V
400V
Max. dissipation at Tamb=70°C
Max. Operating Voltage (DC or RMS)
Max. Overload Voltage (DC or RMS)
Operating temperature
- 55 ~ +155 ℃
Note :
1.
This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication
60115-8”
2.
Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by
RCWV = RatedPower ×Resistance Value or Max. RCWV listed above, whichever is lower.
DIMENSIONS:( unit:mm)
0207
0204
Type
5.90±0.20
2.20±0.10
1.40±0.10
3.50±0.10
1.40±0.15
0.90±0.10
L
D
K
Weight (g)
1000pcs
87.81
22.34
K
D
L
Page 3 of 12
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JUL - 2018
Approval Sheet
MARKING & RESISTANCE RANGE / TOLERANCE
Standard Resistance Values
±1%、±0.5%、±0.25%、±0.1%
E192
100
101
102
104
105
106
107
109
110
111
113
114
115
117
118
120
121
123
124
126
127
129
130
132
133
135
137
138
140
142
143
145
147
149
150
152
154
156
158
160
162
164
165
167
169
174
178
180
182
184
187
189
191
193
196
198
200
203
205
208
210
213
215
218
221
223
226
229
232
234
237
240
243
246
249
252
255
258
261
264
267
271
274
277
280
284
287
291
294
298
301
305
309
312
316
320
324
328
332
336
340
344
348
352
357
361
365
370
374
379
383
388
392
397
402
407
412
417
422
427
432
437
442
448
453
459
464
470
475
481
487
493
499
505
511
517
523
530
536
542
549
556
562
569
576
583
590
597
604
612
619
626
634
642
649
657
665
673
681
690
698
706
715
723
732
741
750
759
768
777
787
796
806
816
825
835
845
856
866
876
887
898
909
920
931
942
953
965
976
988
Color 1
Coding
Color 2
Coding
Color 3
Coding
Color 4
Coding
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
100
101
102
103
104
105
1
2
3
4
5
6
7
8
9
10-1
10-2
Resistance values more than two digiting tags (<1R) or more than three digiting tags (>1R) will not
provide marking.
Page 4 of 12
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JUL - 2018
Approval Sheet
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E192 series for resistors with a tolerance of ±1%,
±0.5%, ±0.25%, ±0.1%. The values of the E192 series are in accordance with “IEC publication 60063”.
DERATING
The power that the resistor can dissipate depends on the operating temperature; see Fig.2
MOUNTING
Due to their rectangular shapes and small tolerances, Surface Mountable Resistors are suitable for handling by
automatic placement systems.
Cylindrical placement can be on ceramic rods and printed-circuit boards (PCBs).
Electrical connection to the circuit is by individual soldering condition.
The end terminations guarantee a reliable contact.
RECOMMEND LAND PATTERN
B
C
A
Type
0207
3.0
0204
1.6
A (mm)
B (mm)
C (mm)
1.7
1.2
2.4
1.6
Page 5 of 12
ASC_WMxxB&C_Q
JUL - 2018
Approval Sheet
SOLDERING CONDITION
The robust construction of cylindrical resistors allows them to be completely immersed in a solder bath of 260°C
for 10 seconds. Therefore, it is possible to mount Surface Mount Resistors on one side of a PCB and other
discrete components on the reverse (mixed PCBs).
Surface Mount Resistors are tested for solderability at 235°C during 2 seconds within lead-free solder bath. The
test condition for no leaching is 260°C for 30 seconds. Typical examples of soldering profile and condition that
provide reliable joints without any damage are given in Fig 3. and Table 1.
For Ni/Sn series soldering
Fig. 3 Infrared soldering profile for MELF Resistors
Table 1. Infrared soldering condition for MELF Resistors
Temperature Condition
Average ramp-up rate (217°C to 260°C)
Between 150 and 200°C
> 217°C
Exposure Time
Less than 3°C/second
Between 60-120 seconds
Between 60-150 seconds
260ºC +0/-5°C
Peak Temperature
Min. 30 seconds
Time within 245°C
Ramp-down rate (Peak to 217°C)
Time from 25°C to Peak
Less than 6°C/second
No greater than 480 seconds
Page 6 of 12
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JUL - 2018
Approval Sheet
CATALOGUE NUMBERS
The resistors have a catalogue number starting with .
L
Q
WM07
C
xxxx
B
T
Size code
TCR code
Resistance code
Tolerance
F: ±1.0%
D: ±0.5%
C: ±0.25%
B: ±0.1%
Packaging code
Termination
code
Special code
WM07 : 0207 B : 50 ppm
WM04 : 0204 C : 25 ppm
T : Taped & Reeled
Q : epoxy molding
compound type
102Ω
37.4KΩ
220Ω
20Ω
=1020
=3742
=2200
=20R0
=R100
=R033
L: Sn base
(lead free)
0.1Ω
0.033Ω
1. Reeled tape packaging: 12mm width plastic taping for WM07.
2. Reeled tape packaging: 8mm width plastic taping for WM04.
2,000pcs/reel for WM07.
3,000pcs/reel for WM04.
Page 7 of 12
ASC_WMxxB&C_Q
JUL - 2018
Approval Sheet
TEST AND REQUIREMENTS (JIS C 5201-1 : 1998)
REQUIREMENT
TEST
PROCEDURE
10Ω to 250KΩ
<10Ω & >250KΩ
- DC resistance values measurement
- Temperature Coefficient of Resistance (T.C.R)
Natural resistance change per change in degree centigrade.
Refer to
Electrical
R2 − R1
×106
“ QUICK REFERENCE DATA “
Characteristics
(ppm/°C) t1 : 20°C+5°C-1°C
R1
(t2 − t1
)
IEC 60115-1 4.8
R1 : Resistance at reference temperature (20°C+5°C/-1 °C)
R2 : Resistance at test temperature (-55°C or +125°C)
Short time overload
(S.T.O.L)
Permanent resistance change after a 5second application of a
voltage 2.5 times RCWV or the maximum overload voltage
specified in the above list, whichever is less.
±(0.1%+0.05Ω)
±(0.15%+0.05Ω)
±(0.15%+0.05Ω)
±(0.25%+0.05Ω)
IEC60115-1 4.13
Resistance to soldering
heat(R.S.H)
Un-mounted chips completely immersed for 10±1second in a
SAC solder bath at 260℃±5ºC
MIL-STD-202 Method
210
no visible damage
good tinning (>95% covered)
no visible damage
Solderability
Un-mounted chips completely immersed for 2±0.5 second in a
SAC solder bath at 235℃±5℃
IEC-60115-1 4.17
Temperature cycling
JESD22 method JA-
104
Test 1000 cycles (-55℃ to +125℃),dwell time 30min. maximum.
Measurement at 24±4 hours after test conclusion
±(0.25%+0.05Ω) ±(0.40%+0.05Ω)
no visible damage
Biased Humidity
1000 +48/-0 hours, loaded with 10% rated power in humidity
chamber controller at +85℃/85%RH
±(0.50%+0.05Ω)
±(0.50%+0.05Ω)
±(0.30%+0.05Ω)
±(0.30%+0.05Ω)
MIL-STD-202 Method
103
Operational Life
AEC-Q200-8
1000 hours at 125±2°C, loaded with rated power cont inuously
MIL-STD-202 -108
High Temperature
Exposure
MIL-STD-202 Method
108
1000 hours @ +125℃, un-powered
±(0.25%+0.05Ω)
±(0.4%+0.05Ω)
Moisture Resistance
AEC-Q200 -6
MIL-STD-202 Method
106
±(0.25%+0.05Ω)
65±2°C, 80~100% RH, 10 cycles, 24 hours/ cycle
Mechanical Shock
±(0.2%+0.05Ω)
±(0.2%+0.05Ω)
MIL-STD-202 Method 1/2 Sine Pulse / 100g Peak / Normal duration 6
213
Vibration
MIL-STD-202 Method 5 g's for 20 min , 12 cycles each of 3 orientations
204
Terminal strength
1.8 kg for 60 s
No broken
AEC-Q200-006
Board flex
±(0.2%+0.05Ω)
Bending 2mm for 60 sec
AEC-Q200-005
Page 8 of 12
ASC_WMxxB&C_Q
JUL - 2018
Approval Sheet
PACKAGING
Paper Tape specifications (unit :mm)
Series No.
WM07
A
B
W
E
F
6.15±0.10
3.65±0.10
2.40±0.10
1.55±0.10
12.0±0.10
8.0±0.10
1.75±0.10
1.75±0.10
5.50±0.05
3.50±0.05
WM04
Series No.
WM07
P0
P1
P2
T
ΦD0
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
2.00±0.05
2.00±0.05
1.50±0.05
1.50±0.05
2.70±0.1
1.80±0.1
WM04
Reel dimensions
B
A
C
D
Symbol
A
B
C
D
0207
0204
13.0±0.5
13.0±0.2
13.0±0.5
9.0±0.5
Φ178.0±2.0
Φ178.0±2.0
Φ60.0±1.0
Φ60.0±1.0
Taping quantity
-
-
Cylinder resistors 2,000 pcs per reel ( WM07 )
Cylinder resistors 3,000 pcs per reel ( WM04 )
Page 9 of 12
ASC_WMxxB&C_Q
JUL - 2018
Approval Sheet
PULSE LOAD PERFORMANCE:
Single Pulse:
1000
100
10
WM07
WM04
1
0.1
10us
100us
1ms
10ms
100ms
1s
10s
Pulse Duration (Sec)
Single Pulse for
R
≥
10 Ω
1000 rectangular pulse amplitudes are applied to the component at intervals of 60seconds,
permissible the resistance to be varied by ± (0.5% R + 0.01Ω).
Continuous Pulse:
WM07
WM04
10us
100us
1ms
10ms
100ms
1s
10s
Pulse Duration (sec)
Continuous Pulse for
R
≥
10 Ω
Continuous load is a pulse period generated by the repetitive rectangular pulse amplitude,
the applied power dissipation is at a rated power of 70 °C.
Permissible the resistance to be varied by ± (0.5% R + 0.01Ω)
.
Page 10 of 12
ASC_WMxxB&C_Q
JUL - 2018
Approval Sheet
Pulse Voltage:
WM07
WM04
10us
100us
1ms
10ms
100ms
1s
10s
Pulse Duration (sec)
Pulse Surge Overload:
1.2 / 50us Pulse
1.2/50us Pulse Voltage
WM07
WM04
10
100
1K
10K
100K
1M
Resistance (Ohm)
According to IEC 60115-1 4.27 1.2 / 50us use 5 pulses at 12sec intervals pulse shapes test
resistor,permissible the resistance to be varied by ± (0.5% R + 0.01Ω).
Page 11 of 12
ASC_WMxxB&C_Q
JUL - 2018
Approval Sheet
10 / 700us Pulse
10/700us Pulse Voltage
10000
1000
100
WM07
WM04
10
10
100
1K
10K
Resistance (Ohm)
100K
1M
According to IEC 60115-1 4.27 10 / 700us use 10 pulses at 60sec intervals pulse shapes
test resistor, permissible the resistance to be varied by ± (0.5% R + 0.01Ω).
Page 12 of 12
ASC_WMxxB&C_Q
JUL - 2018
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