RK73B1HTTC134J Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC134J is a 130 kOhms ±5% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format manufactured by KOA Speer Electronics, Inc. This component is designated as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary to support existing designs, legacy systems, and applications where this resistor is currently specified or deployed.

Key Parameters

Parameter	Value
Resistance	130 kOhms
Tolerance	±5%
Power Rating	0.05W (1/20W)
Package / Case	0201 (0603 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Size / Dimension	0.024" L x 0.012" W (0.60mm x 0.30mm)
Height - Seated (Max)	0.010" (0.26mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC134J is determined by strict equivalence across the following parameters:

Direct Substitution Criteria (Equivalent Parts):

Resistance value: 130 kOhms
Tolerance: ±5%
Power rating: 0.05W (1/20W)
Package: 0201 (0603 Metric)
Composition: Thick Film
Temperature coefficient: ±200ppm/°C
Operating temperature range: -55°C ~ 155°C (or higher)
RoHS3 compliance
MSL rating: 1 (Unlimited)

Upgrade Substitution Criteria (Enhanced Performance): Parts meeting all direct substitution criteria with improved tolerance (±1% instead of ±5%) and/or improved temperature coefficient (±100ppm/°C instead of ±200ppm/°C) are classified as upgrades. These provide superior performance while maintaining full mechanical and electrical compatibility.

Manufacturer Recommended Substitution: RK73B1HTTCM134J from KOA Speer Electronics, Inc. is the manufacturer's direct replacement, maintaining identical specifications while offering Active product status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Packaging
RK73B1HTTC134J	KOA Speer Electronics, Inc.	130 kOhms	±5%	0.05	±200	-55 ~ 155	Not For New Designs	Tape & Reel (TR)
RK73B1HTTCM134J	KOA Speer Electronics, Inc.	130 kOhms	±5%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
AC0201JR-07130KL	YAGEO	130 kOhms	±5%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
CRCW0201130KJNED	Vishay Dale	130 kOhms	±5%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
ERJ-1GNJ134C	Panasonic Electronic Components	130 kOhms	±5%	0.05	±200	-55 ~ 125	Active	Tape & Reel (TR)
CRCW0201130KFKED	Vishay Dale	130 kOhms	±1%	0.05	±100	-55 ~ 155	Active	Tape & Reel (TR)
CRCW0201130KFNED	Vishay Dale	130 kOhms	±1%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
ERJ-1GNF1303C	Panasonic Electronic Components	130 kOhms	±1%	0.05	±200	-55 ~ 125	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Manufacturer Recommended Replacement: RK73B1HTTCM134J is the primary recommendation for direct replacement. This part maintains identical electrical and mechanical specifications while offering Active product status from the original manufacturer, ensuring continued supply and support.

Direct Equivalents (±5% Tolerance): AC0201JR-07130KL, CRCW0201130KJNED, and ERJ-1GNJ134C provide full electrical and mechanical compatibility with the RK73B1HTTC134J. All three are Active products with ROHS3 compliance and MSL 1 rating. Selection among these equivalents is based on supply availability and procurement preference.

Operating Temperature Consideration: ERJ-1GNJ134C and ERJ-1GNF1303C have a maximum operating temperature of -55°C ~ 125°C, compared to -55°C ~ 155°C for other substitutes. These parts are suitable only for applications where the upper operating temperature does not exceed 125°C.

Upgraded Performance Options (±1% Tolerance): CRCW0201130KFKED, CRCW0201130KFNED, and ERJ-1GNF1303C offer improved tolerance specifications. CRCW0201130KFKED additionally provides improved temperature coefficient (±100ppm/°C). These upgrades are electrically and mechanically compatible and suitable for applications requiring tighter tolerance control.

Compliance and Certifications: All substitute parts listed maintain ROHS3 compliance, MSL 1 rating, and identical package dimensions. No additional qualification or testing is required for substitution within the specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM134J be used as a direct replacement for RK73B1HTTC134J?

A: Yes. RK73B1HTTCM134J is the manufacturer's recommended replacement, offering identical electrical specifications (130 kOhms ±5%, 0.05W), mechanical dimensions (0201 package), and operating temperature range (-55°C ~ 155°C). The primary difference is product status: RK73B1HTTCM134J is Active, while RK73B1HTTC134J is Not For New Designs.

Q: What is the difference between direct equivalents and upgrade substitutes?

A: Direct equivalents (AC0201JR-07130KL, CRCW0201130KJNED, ERJ-1GNJ134C) match all electrical and mechanical parameters of the original part, including ±5% tolerance and ±200ppm/°C temperature coefficient. Upgrade substitutes (CRCW0201130KFKED, CRCW0201130KFNED, ERJ-1GNF1303C) provide improved tolerance (±1%) and/or improved temperature coefficient (±100ppm/°C) while maintaining full compatibility.

Q: Are there any operating temperature limitations with substitute parts?

A: ERJ-1GNJ134C and ERJ-1GNF1303C have a maximum operating temperature of 125°C, compared to 155°C for the original part and other substitutes. These parts are suitable only for applications where the upper operating temperature does not exceed 125°C.

Q: Do all substitute parts have the same package dimensions?

A: Yes. All substitute parts use the 0201 (0603 Metric) package with identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). No PCB layout modifications are required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the original RK73B1HTTC134J.

Q: Can I use a ±1% tolerance part in place of a ±5% tolerance part?

A: Yes. Upgrade substitutes with ±1% tolerance (CRCW0201130KFKED, CRCW0201130KFNED, ERJ-1GNF1303C) are electrically and mechanically compatible and provide superior tolerance performance. No circuit modifications are required.

Q: What is the difference between CRCW0201130KFKED and CRCW0201130KFNED?

A: Both parts offer ±1% tolerance and are suitable upgrades. CRCW0201130KFKED has a temperature coefficient of ±100ppm/°C, while CRCW0201130KFNED has ±200ppm/°C. CRCW0201130KFKED provides superior temperature stability for applications requiring tighter performance across temperature ranges.

Q: Is packaging format identical across all substitute parts?

A: Yes. All substitute parts are supplied in Tape & Reel (TR) format, matching the original packaging specification. No changes to assembly or handling procedures are required.

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