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Low resistance patch resistor JIERR JER2512F2R004L designed for current sensing and battery chargers

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Low resistance patch resistor JIERR JER2512F2R004L designed for current sensing and battery chargers

Resistance : 4mΩ

Power(Watts) : 2W

Type : Current Sense Resistor

Tolerance : ±1%

Description : 4mΩ 2W Current Sense Resistor ±1% 2512 Chip Resistor - Surface Mount RoHS

Mfr. Part # : JER2512F2R004L

Model Number : JER2512F2R004L

Package : 2512

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PATCH RESISTOR

Product Description: High-power alloy patch resistors designed for current sensing applications. Featuring SMD surface mount technology, these resistors offer high power handling capabilities, ultra-low resistance values (down to 0.0R), and excellent temperature coefficient characteristics. They are ideal for current sensing, power supplies, battery chargers, and various consumer electronics. Compliant with AEC-Q200 standards and RoHS/REACH certified.

Product Attributes:

Brand: JER (implied by part number example)
Certifications: RoHS, REACH, AEC-Q200

Technical Specifications

Type	Size	Rated Power (W)	Resistance Range (m)	Tolerance	TCR (ppm/)	Insulation Resistance (M)	Operating Temperature Range ()
1206	1206	1W	1m ~ 200m	F: 1%, G: 2%, J: 5%	1m: 350; 2m~100m: 50; 110m~200m: 50	>100	-55 ~ +170
2512	2512	2W, 3W	0.5m ~ 500m	F: 1%, G: 2%, J: 5%	1m large electrode~4m large electrode: 50; 0.5m~500m: 50; 0.5m large electrode, 1m: 350; 2m~500m: 50	>100	-55 ~ +170
0805	0805	0.25W, 0.5W	1m ~ 20m	F: 1%, G: 2%, J: 5%	1m: 350; 2m~20m: 50	>100	-55 ~ +170

Type	Size (L x W x T mm)	Electrode Width (E mm)	Q'ty/Reel	Packing Type	Packing Dimensions (A x B x W mm)	Reel Dimensions (A x B x C mm)
1206	3.200.20 x 1.600.20 x 0.600.20	0.500.20	5000	Paper	2.000.15 x 3.600.20 x 0.840.1	1782.00 x 60.001.00 x 13.500.50
2512	6.400.20 x 3.200.20 x 0.800.20	Large electrode: 2.200.20; Small electrode: 0.900.20	4000	Emboss	3.600.2 x 6.900.2 x 1.00.15	1782.00 x 60.001.00 x 13.500.50
0805	2.000.20 x 1.250.20 x 0.600.20	0.400.20	5000	Paper	1.650.20 x 2.400.20 x 0.840.1	1782.00 x 60.001.00 x 13.500.50

Test Item	Test Method	Conditions	Specification
Short Time Overload	IEC60115-1 4.13	Applied 5.0 times of rated power for 5 seconds.	1% R
Temperature Coefficient	IEC60115-1 4.8	Refer to Spec.	Refer to Spec.
Temperature Cycling	JESD22 Method JA-104	1000 Cycles (-55 to +125)	< 1% R
High Temperature Exposure	MIL-STD-202 Method 108	1000 hrs. @T=125.	< 1% R
Low Temperature Operation	IEC60115-1 4.23.4	45 min. @T=-55.	< 1% R
Biased Humidity	MIL-STD-202 METHOD 103	1000 hours 85/85%RH (10% operating power)	1% R
Solderability	J-STD-002B test B	245 5 for 2~3sec.	Min 95% coverage
Operational Life	MIL-STD-202 METHOD 108	702, rated current for 1.5H, rest 0.5H, 1000 +48/-0 hours.	1% R
Resistance to Vibration	MIL-STD-202 METHOD 204	5g's for 20min. 12 cycles, 10-2000Hz.	1% R
Resistance to Solder Heat	IEC60115-1 4.18	260 5 for 101sec.	1% R, No visible damage
Terminal Bending	AEC-Q200-005	Min 2mm deflection, 60sec.	1% R
Mechanical Shock	MIL-STD-202 METHOD 213	100g's, 6ms, half sine shock pulse.	1% R
Terminal Strength	AEC-Q200-006	Applied 17.7N (1.8Kg) for 601seconds.	1% R
Thermal Shock	MIL-STD-202 METHOD 107	-55/+125C, 300 cycles, dwell 15 minutes.	1% R
Flammability	UL-94	V-0 or V-1	Acceptable
ESD Test	AEC-Q200-002	2KV, 2 times/1s	1% R

2508221508_JIERR-JER2512F2R004L_C49164687.pdf

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