几字型采样电阻

几字型焊接采样电阻特征Features

l 保赢投注法1,3,5瓦1，3,5 Watts

l ±5%和±1%精度Tolerance ±5% or ±1%

l 电阻温度系数TCR ±20 ppm/℃或±50 ppm/℃

l 保赢投注法阻值低至0.0025欧 Resistance values down to 0.0025ohms

l 耐高温 High temperature proof

l 电感小于10纳亨Low Inductance

l 保赢投注法引脚镀锡易于焊锡 Solderable copper leads

l 保赢投注法符合ROHS 要求Lead-free

l 特殊规格可以订做

l Special tight toleranceare available on request

电气参数Electrical Data

	HOLR-1	HOLR-3	HOLR-5
保赢投注法85℃时功率 Power rating at 85℃ watts	1	3	5
阻值范围Resistance range ohms	0.005Ω to 0.01Ω	保赢投注法0.003Ω to 0.10Ω	0.005Ω to 0.05Ω

保赢投注法*Contact factory for values below 0.001 ohm

尺寸规格 Dimensions Data

采样电阻

应用范围 Applications

l 电流采样 Current Sensing

l 反馈电路 Feedback

l 低电感电路Low Inductance

l 大电流脉冲电路Surge and pulse

包装Packaging

l 保赢投注法散装，每包装1000PCS bulk, 1000PCS per package

采样电阻工作特性 performance Data

TEST	CONDITIONS OF TEST	TEST LIMITS
保赢投注法Thermal Shock	-55℃to 150℃,100cycles ,15min at each extreme	保赢投注法±（1.0%+0.0005Ω△R
保赢投注法Shot time overload	5xrated power for 5s	±（0.5%+0.0005Ω）△R
保赢投注法Low temperature storage	-65℃ for 45 min	保赢投注法±（0.5%+0.0005Ω）△R
High temperature expo-sure	1000 h at +170℃	±（1.0%+0.0005Ω）△R
Bias humidity	+85℃85% RH, 10% bias, 1000 h	±（0.5%+0.0005Ω）△R
保赢投注法Mechanical shock	100 g’s for 6 ms, 5 pulses	±（0.5%+0.0005Ω）△R
Vibration	保赢投注法Frequency varied 10 Hz to 200 Hz in 1 min, 3directions,12h	保赢投注法±（0.5%+0.0005Ω）△R
Resistance to solder heat	保赢投注法1000 h at + 70 ℃, 1.5 h“ON”, 0.5 h “OFF”	±（1.0%+0.0005Ω）△R
Resistance to solder heat	保赢投注法+260℃ solder,10s to12 s dwell, 25 mm/s emergence	保赢投注法±（0.5%+0.0005Ω）△R
保赢投注法Moisture resistance	MIL-STD-202, method 106, 0 % power, 7a and 7b not re-quired	±（0.5%+0.0005Ω）△R