Metal Glaze Thick Film Chip Resistors KOA RK73B1HTTC335J Rectangular Ceramic Substrate Resistor

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Product Description

THICK FILM CHIP RESISTORS RK73B

The RK73B series of thick film chip resistors offers a robust product lineup from 0402 to 6432 sizes. Featuring a metal glaze thick film for excellent heat and weather resistance, these resistors are suitable for reflow and wave soldering. They are RoHS compliant with lead-free terminals, and AEC-Q200 data is available for most models. Applications include automotive, medical, and aerospace equipment where reliability is critical.

Product Attributes

Brand: RK73B
Structure: Rectangular chip resistor
Appearance Color: Black
Material: Metal glaze thick film, Ceramic substrate
Certifications: EU RoHS compliant (excluding lead glass in electrodes, resistive film layer, and glass)
AEC-Q200: Available (excluding 1F)

Technical Specifications

Model (Size Code)	Dimensions (mm) L x W x t	Weight (g/1000pcs)	Rated Power	Operating Temp. Range	Resistance Range ()	Max. Operating Voltage	Max. Overload Voltage	TCR (10/K)	Packaging (pcs/reel)
1F (0402/01005)	0.40.02 x 0.20.02 x 0.130.02	0.04	0.03W	-55+125	19.1 (250), 1091k (250), 100k10M (200)	20V	30V	200, 250, 0+300	TCM: 15,000, TD: 40,000
1H (0603/0201)	0.60.03 x 0.30.03 x 0.230.03	0.14	0.05W	-55+155	19.1 (400), 1010M (200)	25V	50V	200, 400	TCM: 15,000
1E (1005/0402)	1.0 +0.1/-0.05 x 0.50.05 x 0.350.05	0.68	0.1W	-55+155	110M (200)	75V	100V	200	TPL: 20,000, TP: 10,000
1J (1608/0603)	1.60.2 x 0.80.1 x 0.450.1	2.14	0.1W	-55+155	1.1k10M (200), 11M22M (400)	-	-	200, 400	TP: 10,000
1J AT (1608/0603)	-	-	0.125W	-55+155	11k (200)	-	-	200	-
2A (2012/0805)	2.00.2 x 1.250.1 x 0.50.1	4.54	0.25W	-55+155	11M (200), 1.1M10M (400)	150V	200V	200, 400	TP: 10,000, TD: 5,000
2B (3216/1206)	3.20.2 x 1.60.2 x 0.60.1	9.14	0.25W	-55+155	15.6M (200), 6.2M22M (400)	200V	400V	200, 400	TD: 5,000
2E (3225/1210)	- x - x 0.60.1	-	0.5W	-55+155	105.6M (200), 6.2M10M (400)	-	-	200, 400	TD: 5,000
W2H (5025/2010)	5.00.2 x 2.50.2 x 0.650.15	24.3	0.75W	-55+155	105.6M (200), 6.2M22M (400)	-	-	200, 400	-
W3A (6432/2512)	6.30.2 x 3.10.2 x -	37.1	1.0W	-55+155	105.6M (200), 6.2M22M (400)	200V	400V	200, 400	-
W3A2 (6432/2512)	-	-	2.0W5	-55+95	105.6M (200), 6.2M22M (400)	200V	400V	200, 400	-

Performance

Test Item	Specification Value	Test Method
Resistance Value	Within specified tolerance	-
Temperature Coefficient of Resistance	Within specified value	-
Overload (Short time)	1:1F, 0.5:others (2.5x rated voltage for 5s, 2x for 1E, 2B, W3A2)	-
Soldering Heat Resistance	0.5:1FW3A2 (10R1M), 1:others (R10, R1M)	2605, 10s1s
Temperature Cycling	1:1F, Performance "A" (Heat Shock), 0.5:others (Standard)	-55 (30min.)/+125 (30min.), 100 cycles (Standard), 1000 cycles (Heat Shock)
Damp Heat Load	2:1J, 2A, 2B, 3:others	402, 90%95%RH, 1000h (1.5h ON, 0.5h OFF cycle)
Durability	2:1J, 2A, 2B, 3:others	702 or Rated Terminal Temp. 2, 1000h (1.5h ON, 0.5h OFF cycle)
High Temperature Load	1: (Standard), 0.5:1F, 0.3:others	+125, 1000h (1F); +155, 1000h (others)