RoHS

SURFACE MOUNT RESISTORS

LRMA Series: Metal Alloy, Very Low Resistance

Page 7 of 9

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TEST PROCEDURES : for Jumper

SOLDERING PROFILE

Peak: 250

ºC

+5

0

230ºC or higher

250

200

150

100

50

soldering zone

30 ± 10s

Heating Time

REFLOW Soldering

180ºC

150ºC

90 ± 30s

Pre Heating Zone

WAVE Soldering

2022.03.23

Test Item

Test Method

Procedure

Requirement

Short Time Overload

JIS-C-5201-1 4.13

IEC-60115-1 4.13

4 times of rated power for 5 seconds.

≤ 0.2mΩ

Temperature

Cycling

JESD22 Method

JA-104

1000 Cycles (-55°C to 155°C). Measurement at 24±4

hours after test conclusion. 30 minutes maximum dwell

time at each temperature extreme

≤ 0.2mΩ

High Temperature

Exposure (Storage)

JIS-C-5201-1 4.25

IEC-60068-2-2

At 170°C for 1,000 hours

≤ 0.2mΩ

Biased Humidity

MIL-STD-202

Method 103

1000 hours, 85°C / 85% RH, 10% of operating power.

Measurement at 24±4 hours after test conclusion

≤ 0.2mΩ

Load Life

(Endurance)

JIS-C-5201-1 4.25

IEC-60115-1 4.25.1

70±2°C, RCWV or Max. working voltage whichever is

less for 1000 hours with 1.5hrs "ON" and 0.5hr "OFF"

≤ 0.2mΩ

Solderability

JIS-C-5201-1 4.17

IEC-60115-1 4.17

245 ± 5°C for 3 seconds

> 95% Coverage

Figure 1