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Flat chip resistors KOA RK73H2ATTD1800F precision grade compatible with automated mounting machines

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Flat chip resistors KOA RK73H2ATTD1800F precision grade compatible with automated mounting machines

Power(Watts) : 250mW

Resistance : 180Ω

Voltage Rating : 150V

Temperature Coefficient : ±100ppm/℃

Operating Temperature : -55℃~+155℃

Type : Thick Film Resistor

Tolerance : ±1%

Description : 250mW 180Ω 150V ±100ppm/℃ Thick Film Resistor ±1% 0805 Chip Resistor - Surface Mount RoHS

Mfr. Part # : RK73H2ATTD1800F

Model Number : RK73H2ATTD1800F

Package : 0805

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KOA RK73H Series Flat Chip Resistors (Precision Grade)

The KOA RK73H series offers high-reliability, precision-grade flat chip resistors designed for demanding applications. These resistors feature a small, lightweight construction with excellent heat and weather resistance due to their metal glaze thick film construction. The triple-layer electrode structure ensures high stability and reliability. They are compatible with automated mounting machines and suitable for both flow and reflow soldering. Terminations are lead-free, complying with EU-RoHS requirements. Many types are AEC-Q200 qualified. Applications include automotive, medical, and aerospace equipment where personal safety or significant loss may be involved, requiring prior consultation with KOA.

Product Attributes

Brand: KOA
Product Type: Flat Chip Resistors (Precision Grade)
Coating Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
Material: Metal Glaze Thick Film (Resistive Film), Alumina (Substrate)
Certifications: EU-RoHS compliant (lead-free termination), AEC-Q200 qualified (Exemption 1F)

Technical Specifications

Type (Inch Size Code)	Dimensions (mm) L x W x c x d x t	Weight (g/1000pcs)	Power Rating	Rated Ambient Temp.	Rated Terminal Part Temp.	T.C.R. (10^-6/K)	Resistance Range ()	Max. Working Voltage	Max. Overload Voltage	Packaging & Q'ty/Reel (pcs)
1F (01005)	0.40.02 x 0.20.02 x 0.100.03 x 0.110.03 x 0.130.02	0.04	0.03W	70		200	100k1M⁴	20V	30V	40,000
1H (0201)	0.60.03 x 0.30.03 x 0.10.05 x 0.150.05 x 0.230.03	0.14	0.05W	70		200	101M, 1010M⁴	25V	50V	35,000
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	0.1W	70	125	100	101M	75V	100V	TPL: 20,000, TP: 10,000
1J (0603)	1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1	2.14	0.1W	70	125	100	1.02k1M			TP: 10,000, 5,000
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	0.25W	70	125	100	101M	150V	200V	TP: 10,000, 5,000, 4,000
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	0.25W	70	125	100	101M	200V	400V	5,000, 4,000
2E (1210)	2.60.2 x 1.50.2 x 0.60.3 x 0.4^+0.2_-0.1 x 0.60.1	15.5	0.5W	70	125	100	101M			5,000, 4,000
W2H (2010)	5.00.2 x 2.50.2 x 0.650.15 x 0.4^+0.2_-0.1 x 0.60.1	24.3	0.75W	70	125	100	101M			4,000
W3A (2512)	6.30.2 x 3.10.2 x 0.80.3 x 0.4^+0.2_-0.1 x 0.60.1	37.1	1W	70	125	100	101M	200V (500V⁵)	400V (500V⁵)	4,000
W3A2 (2512)	6.30.2 x 3.10.2 x 0.80.3 x 0.4^+0.2_{-0.1 x 0.60.1}	37.1	2W	95		100	101M	200V	400V	4,000

Performance

Test Items	Performance Requirements (R(+0.1 ))	Test Methods
Resistance	Within specified tolerance
T.C.R.	Within specified T.C.R.
Overload (Short time)	2 (1F), 0.5 (others)	Rated voltage 2.5 for 5s (1E, 2B, W3A2: Rated voltage2 for 5s)
Resistance to soldering heat	1 (1FW3A, 10R1M), 3 (1HW3A, R<10, R>1M)	2605, 10s1s
Rapid change of temperature	1 (1F), 0.5 (others)	-55 (30min.) /+125 (30min.), 100 cycles
Moisture resistance	2 (1J, 2A, 2B), 3 (others)	402, 90%95%RH, 1000h (1.5h ON/0.5h OFF cycle)
Endurance at 70	2 (1J, 2A, 2B), 3 (others)	702, 1000h (1.5h ON/0.5h OFF cycle)
High temperature exposure	1	+125, 1000h (1F); +155, 1000h (1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)

2410121533_KOA-RK73H2ATTD1800F_C317247.pdf

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