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Thick film rectangular chip resistors KOA RK73H1ETTP3901F with triple layer electrodes and high heat resistance

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Thick film rectangular chip resistors KOA RK73H1ETTP3901F with triple layer electrodes and high heat resistance

Resistance : 3.9kΩ

Power(Watts) : 100mW

Voltage Rating : 75V

Temperature Coefficient : ±100ppm/℃

Operating Temperature : -55℃~+155℃

Type : Thick Film Resistor

Tolerance : ±1%

Description : 3.9kΩ 100mW 75V ±100ppm/℃ Thick Film Resistor ±1% 0402 Chip Resistor - Surface Mount RoHS

Mfr. Part # : RK73H1ETTP3901F

Model Number : RK73H1ETTP3901F

Package : 0402

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Product Overview

The RK73H series are precision-grade flat chip resistors featuring a thick film metal glaze resistive element for excellent heat and weather resistance. They offer small size, light weight, and high stability and reliability due to their triple-layer electrode structure. These resistors are compatible with various automatic mounting machines for taping and suitable for both flow and reflow soldering. Products with lead-free terminations meet EU-RoHS requirements, with exemptions for lead glass in electrode, resistor element, and glass. Many types are AEC-Q200 qualified.

Product Attributes

Brand: KOA
Product Type: Thick Film (Precision) Rectangular Chip Resistors
Coating Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
Certifications: AEC-Q200 qualified (Exemption 1F)
Environmental Compliance: EU-RoHS compliant (for lead-free termination products)

Technical Specifications

Type (Inch Size Code)	Dimensions (mm) L x W x c x d x t	Weight (1000pcs) (g)	Product Code Example	Power Rating	Nominal Resistance Range ($\Omega$)	Resistance Tolerance	T.C.R. (x10^-6/K)	Max. Working Voltage (V)	Max. Overload Voltage (V)	Packaging & Q'ty/Reel (pcs)	Test Items	Performance Requirements $\Delta$R$\pm$ (\% + 0.1$\Omega$)	Test Methods
1F (01005)	0.40.02 x 0.20.02 x 0.100.03 x 0.110.03 x 0.130.02	0.04	RK73H 1F T D 1002 F	0.03W	100k~2M^*4	D:0.5% F:1%	200	20	30	TX: 40,000	Resistance	Within specified tolerance	25
1H (0201)	0.60.03 x 0.30.03 x 0.10.05 x 0.150.05 x 0.230.03	0.14	RK73H 1H T D 1002 F	0.05W	10~1M 10~10M^*4	D:0.5% F:1%	200 400	25	50	TX: 10,000 TBL: 10,000 TCM: 15,000	T.C.R.	Within specified T.C.R	+25/55 and +25/+125
1E (0402)	1.0^+0.1_-0.05 x 0.50.05 x 0.20.1 x 0.25^+0.05_-0.1 x 0.350.05	0.68	RK73H 1E T D 1002 F	0.1W	10~1M 1.02M~10M	D:0.5% F:1%	100 200	75	100	TPL: 20,000 TP: 10,000	Overload (Short time)	1:1F 0.5:another	Rated voltage2.5 for 5s (1E, 2B, W3A2: Rated voltage2 for 5s)
1J (0603)	1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1	2.14	RK73H 1J T D 1002 F	0.1W 0.125W	1.02k~1M 10~1k	D:0.5% F:1%	100 200	-	-	TP: 10,000 5,000	Resistance to soldering heat	1:1F~W3A (10R1M) 3:1H~W3A (R<10, R>1M) 0.5:1F~W3A (10R1M) 1:1H~W3A (R<10, R>1M)	2605, 10s1s
2A (0805)	2.00.2 x 1.250.1 x 0.40.2 x 0.3^+0.2_-0.1 x 0.50.1	4.54	RK73H 2A T D 1002 F	0.25W	10~1M 1.02M~10M	D:0.5% F:1%	100 200 400	150	200	TP: 10,000 5,000 4,000	Rapid change of temperature	1:1F 0.5:another	55 (30min.)/+125 (30min.) 100 cycles
2B (1206)	3.20.2 x 1.60.2 x 0.50.3 x 0.4^+0.2_-0.1 x 0.60.1	9.14	RK73H 2B T D 1002 F	0.25W	10~1M 1.02M~5.6M 5.62M~10M	D:0.5% F:1%	100 200 400	200	400	5,000 4,000	Moisture resistance	2:1J, 2A, 2B 3:another 0.75:1J, 2A, 2B 1.5:1F 1:another	402, 90%~95%RH, 1000h (1.5h ON/0.5h OFF cycle)
2E (1210)	2.60.2 x 15.5 (L x W)	-	RK73H 2E T D 1002 F	0.5W	10~1M 1.02M~5.6M 5.62M~10M	D:0.5% F:1%	100 200 400	-	-	5,000 4,000	Endurance at 70	2:1J, 2A, 2B 3:another 0.75:1J, 2A, 2B 1:another	702, 1000h (1.5h ON/0.5h OFF cycle)
W2H (2010)	5.00.2 x 2.50.2 x 0.650.15 (L x W x c)	24.3	RK73H W2H T D 1002 F	0.75W	10~1M 1.02M~5.6M 5.62M~10M	D:0.5% F:1%	100 200 400	-	-	4,000	High temperature exposure	1 0.5:1F 0.3:another	+125, 1000h:1F +155, 1000h:1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2
W3A (2512)	6.30.2 x 3.10.2 (L x W)	37.1	RK73H W3A T D 1002 F	1W	10~1M 1.02M~5.6M 5.62M~10M	D:0.5% F:1%	100 200 400	200	400	4,000	Operating Temperature Range	-55~+125 (1F) -55~+155 (1H1E1J2A2B2EW2HW3AW3A2)	-
W3A2 (2512)	6.30.2 x 3.10.2 (L x W)	-	RK73H W3A2 T D 1002 F	2W	10~1M 1.02M~5.6M 5.62M~10M	D:0.5% F:1%	100 200 400	200	400	4,000

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