Thick film chip resistors KOA RK73H1HTTC4300F with ceramic substrate and multiple termination options

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Product Description

RK73H Precision Thick Film Chip Resistors

The RK73H series offers high-precision thick film chip resistors with 0.5% and 1% tolerances. These resistors are designed to meet stringent EU RoHS requirements and are AEC-Q200 qualified, making them suitable for demanding applications. The robust construction features a ceramic substrate, resistive film, protective coating, inner electrode, and solder plating.

Product Attributes

Brand: KOA Speer Electronics
Certifications: EU RoHS Compliant, AEC-Q200 Qualified
Termination Material: Sn (standard), SnPb, Au (available options)

Technical Specifications

Type (Inch Size Code)	L (mm)	W (mm)	t (mm)	d (mm)	c (mm)	Power Rating	Max. Working Voltage	Operating Temp. Range	T.C.R. (x10^-6/K)	Resistance Range
1F (01005)	0.4 (0.02)	0.2 (0.02)	0.1 (0.03)	0.11 (0.03)	0.13 (0.02)	0.03W	20V	-55C to +125C	250	10 - 91k
1H (0201)	0.6 (0.03)	0.3 (0.03)	0.1 (0.05)	0.1 (0.1)	0.1 (0.1)	0.05W	25V	-55C to +125C	200	10 - 1M
1E (0402)	1.0 (+0.1 -0.05)	0.5 (0.05)	0.2 (0.05)	0.2 (0.1)	0.2 (0.1)	0.1W	50V	-55C to +155C	200	10 - 10M
1J (0603)	1.6 (0.2)	0.8 (0.1)	0.3 (0.05)	0.3 (0.1)	0.3 (0.1)	0.125W	50V	-55C to +155C	200	10 - 1M
2A (0805)	2.0 (0.2)	1.25 (0.1)	0.5 (0.05)	0.5 (0.1)	0.5 (0.1)	0.25W	75V	-55C to +155C	200	10 - 1M
2B (1206)	2.6 (0.2)	1.6 (0.2)	0.6 (0.2)	0.6 (0.15)	0.6 (0.15)	0.25W	100V	-55C to +155C	200	10 - 1M
2E (1210)	3.2 (0.2)	2.5 (0.2)	0.6 (0.2)	0.65 (0.15)	0.65 (0.15)	0.5W	150V	-55C to +155C	200	10 - 1M
2H/W2H (2010)	5.0 (0.2)	2.5 (0.2)	0.8 (0.2)	0.65 (0.15)	0.65 (0.15)	0.75W	200V	-55C to +155C	200	10 - 1M
3A/W3A (2512)	6.3 (0.2)	3.1 (0.2)	1.0 (0.2)	0.65 (0.15)	0.65 (0.15)	1.0W	200V	-55C to +155C	200	10 - 1M
W3A2 (2512)	6.3 (0.2)	3.1 (0.2)	1.0 (0.2)	0.65 (0.15)	0.65 (0.15)	2.0W	400V	-55C to +155C	200	10 - 1M

Performance Characteristics

Parameter	Requirement	Test Method
Resistance T.C.R.	Within specified tolerance
Overload (Short time)	2% (1F: 1%)	Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds)
Resistance to Soldering Heat	1% (1F ~ W3A2: 10R1M); 3% (1H ~ W3A2: R1M)	260C 5C, 10 seconds 1 second
Rapid Change of Temperature	0.5% (1F: 1%)	-55C (30 min), +125C (30 min), 100 cycles
Moisture Resistance	0.75% (1J, 2A, 2B: 2%); 1.5% (1F: 3%)	40C 2C, 90%-95% RH, 1000 hours
Endurance at 70C	0.75% (1J, 2A, 2B: 2%); 1% (1F: 3%)	70C 2C, 1000 hours
High Temperature Exposure	0.5% (1F: 1%)	+125C, 1000 hours (1F); +155C, 1000 hours (others)