Flat chip resistor KOA WK73R3ATTE160J wide terminal type with 05 tolerance and eu rohs certification

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Product Description

Product Overview

The WK73R series are wide terminal type flat chip resistors featuring 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 solderings and meet EU-RoHS requirements. They are designed for applications such as power supply circuits, ECUs, and automotive-related systems.

Product Attributes

Brand: KOA
Product Type: Flat Chip Resistors (Wide Terminal Type)
Coating Color: Black
Certifications: EU-RoHS compliant, AEC-Q200 qualified
Reference Standards: IEC 60115-8, JIS C 5201-8, EIAJ RC-2134C
Environmental Information: Contact for details on environmental hazardous materials beyond EU-RoHS.

Technical Specifications

Type	Nominal Resistance	Resistance Tolerance	Power Rating	T.C.R. (10^-6/K)	Max. Working Voltage	Max. Overload Voltage	Taping & Q'ty/Reel (pcs)	Operating Temperature Range
WK73R1E	101M	D: 0.5%, F: 1%	0.33W1	100	75V	100V	TP: 10,000	-55+155
WK73R1J	101M	D: 0.5%, F: 1%	0.5W1	100	150V	200V	TD: 5,000
WK73R2A	20.5k1M (D) / 22k1M (F)	D: 0.5%, F: 1%	0.75W1	100	200V	400V	TD: 5,000
WK73R2B	101M	D: 0.5%, F: 1%, J: 5%	0.75W / 1W1	100	-	-	TE: 5,000	70 / 115
WK73R2H	10430k (D) / 470k1M (F)	D: 0.5%, F: 1%	1W	100 / 200	-	-	TD: 4,000	70
WK73R2J	10510k (D) / 560k1M (F)	D: 0.5%, F: 1%	1W	100 / 200	-	-	TD: 4,000	70
WK73R3A	10330k (D) / 360k1M (F)	D: 0.5%, F: 1%	1.5W / 2W1	100 / 200	-	-	TE: 4,000	70 / 115

Test Items	Performance Requirements	Limit	Typical	Test Methods
Resistance	Within specified tolerance	-	-	At 25
T.C.R.	Within specified T.C.R.	-	-	+25/55 and +25/125
Overload (Short time)	R(2% + 0.005 ) (for 1E, 2A, 2B, 3A) / R(2% + 0.005 ) (for 1E, 2A, 2B, 3A)	2	0.2	Rated voltage2.5 for 5s / Rated voltage2.0 for 5s
Resistance to soldering heat	R1%	1	0.2	2605, 10s1s
Terminal strength (Bending test)	R0.1%	1	0.1	Holding point 90mm, Bending 1time. Bending 5mm
Rapid change of temperature	R0.5%	0.5	0.3	-55 (30min.) /+125 (30min.) 100 cycles
Moisture resistance	R3% (for 1E) / R2% (for others)	3:1E, 2:another	1:1E, 0.2:another	402, 90%95%RH, 1000h (1.5h ON/0.5h OFF cycle)
Endurance at 70	R3% (for 1E) / R2% (for others)	3:1E, 2:another	1:1E, 0.2:another	702, 1000h (1.5h ON/0.5h OFF cycle)
High temperature exposure	R1%	1	0.2	+155, 1000h