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Low resistance flat chip resistors KOA SR732ATTDR100F for current detection in power supply circuits

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Low resistance flat chip resistors KOA SR732ATTDR100F for current detection in power supply circuits

Power(Watts) : 330mW

Resistance : 100mΩ

Tolerance : ±1%

Description : 100mΩ ±1% 330mW

Mfr. Part # : SR732ATTDR100F

Model Number : SR732ATTDR100F

Package : 0805

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Product Overview

The SR73 series are low resistance flat chip resistors designed for current detection in power supply and motor circuits. They offer high reliability and performance with a resistance tolerance of 0.5% and a temperature coefficient of 10010^-6/K. These resistors are suitable for both reflow and flow soldering and meet EU-RoHS requirements for lead-free termination. AEC-Q200 qualified (excluding 1H type).

Product Attributes

Brand: KOA
Product Line: SR73
Type: Low Resistance Flat Chip Resistors
Certifications: EU-RoHS compliant (lead-free termination), AEC-Q200 qualified (Exemption 1H)
Materials: Ceramic substrate, resistive film, internal electrode, Ni plating, solder plating. Gold plated electrodes available for 1J, 2A, 2B (0.1 to 10).
Coating Color: Black (1H), Indigo (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
Origin: Japan (implied by manufacturer and datasheet language)

Technical Specifications

Type (Inch Size Code)	Dimensions (mm) L x W x t	Weight (g/1000pcs)	Power Rating	Rated Ambient Temp. ()	Rated Terminal Part Temp. ()	T.C.R. (10^-6/K)	Resistance Range ()	Taping & Qty /Reel (pcs)
1H (0201)	0.60.03 x 0.30.03 x 0.230.03	0.14	0.1W	70		0 to +4000 / 0 to +5000	1 to 10 / 0.27 to 10 / 0.18 to 0.24	TCM: 15,000
1E (0402)	1.0 x 0.5 x 0.350.05	0.68	0.166W	70	125	2000 / 3000 / 5000	0.51 to 10.0 / 0.2 to 0.47 / 0.1 to 0.18	TPL: 20,000, TP: 10,000
1J (0603)	1.60.2 x 0.8 x 0.450.1	2.14	0.2W	70	125	2000	1.1 to 10.	TP: 10,000, 5,000
1J	1.60.2 x 0.8 x 0.450.1	2.14	0.25W	70	125	2000	0.1 to 1.	TP: 10,000, 5,000
2A (0805)	2.00.2 x 1.250.1 x 0.50.1	4.54	0.33W	70	125	1000 / 2000 / 5000 / 8000	0.15 to 10 / 0.1 to 10. / 0.051 to 0.091 / 0.03 to 0.047	TP: 10,000, 5,000, 4,000
2A	2.00.2 x 1.250.1 x 0.50.1	4.54	0.5W	70	105	1000 / 2000 / 5000 / 8000	0.15 to 10 / 0.1 to 10. / 0.051 to 0.091 / 0.03 to 0.047	TP: 10,000, 5,000, 4,000
2B (1206)	3.20.2 x 1.60.2 x 0.60.1	9.14	0.33W	70	125	1000 / 2000 / 5000 / 8000	0.15 to 10 / 0.1 to 10. / 0.056 to 0.091 / 0.03 to 0.051	5,000, 4,000
2B	3.20.2 x 1.60.2 x 0.60.1	9.14	0.5W	70	110	1000 / 2000 / 5000 / 8000	0.15 to 10 / 0.1 to 10. / 0.056 to 0.091 / 0.03 to 0.051	5,000, 4,000
2E (1210)	2.60.2 x 1.60.2 x 0.60.1	15.50	0.5W	70	125	1000 / 2000 / 5000 / 1000	0.1 to 10. / 0.047 to 10.00 / 0.036 to 0.043 / 0.024 to 0.033	5,000, 4,000
2E	2.60.2 x 1.60.2 x 0.60.1	15.50	0.66W	70	110	1000 / 2000 / 5000 / 1000	0.1 to 10. / 0.047 to 10.00 / 0.036 to 0.043 / 0.024 to 0.033	5,000, 4,000
W2H (2010)	5.00.2 x 2.50.2 x 0.650.15	24.30	0.75W	70	125	1000 / 2000 / 5000 / 8000	0.1 to 10. / 0.1 to 10. / 0.056 to 0.091 / 0.033 to 0.051	4,000
W3A (2512)	6.30.2 x 3.10.2 x 0.650.15	37.10	1W	70	125	1000 / 2000 / 5000 / 8000	0.1 to 10. / 0.1 to 10. / 0.056 to 0.091 / 0.039 to 0.051	4,000
W3A2 (2512)	6.30.2 x 3.10.2 x 0.650.15	37.10	2W		95	1000 / 2000 / 5000 / 8000	0.1 to 10. / 0.1 to 10. / 0.056 to 0.091 / 0.039 to 0.051	4,000

Applications

Car electronics
Computers
HDDs
Cellular-telephones
Power supplies
Motor circuits

Features

Current detecting resistors for power supply, motor circuits, etc.
High reliability and performance with resistance tolerance 0.5%, T.C.R. 10010^-6/K.
Suitable for both reflow and flow solderings.
Products with lead free termination meet EU-RoHS requirements.
AEC-Q200 qualified (Exemption 1H).

Precautions for Use

Care should be taken regarding the occurrence of cracks at the solder connection due to thermal stress, especially for larger types (W2H, W3A, W3A2) with significant thermal expansion and self-heating. The size of the land pattern, solder volume, and heat dissipation of the mounting board can influence crack occurrence. Resistance values may fluctuate after soldering based on pad pattern size and solder amount; confirm effects before designing.

2410121322_KOA-SR732ATTDR100F_C186573.pdf

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