RK73B1HTTC271J Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC271J is a 270 Ohm ±5% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). Manufactured by KOA Speer Electronics, Inc., this component is designed for automotive applications with AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently classified as Not For New Designs, making equivalent substitutes necessary for ongoing production and maintenance applications. Alternative parts with active product status provide continued availability and design flexibility.

Key Parameters

Parameter	Value
Resistance	270 Ohms
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 RK73B1HTTC271J is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution (±5% Tolerance):

Resistance value: 270 Ohms
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 (minimum requirement)
Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)

Direct Equivalents maintain all electrical and mechanical specifications. These parts are functionally interchangeable without circuit redesign.

Upgrade Parts feature improved tolerance (±1% instead of ±5%) while maintaining all other specifications. These provide enhanced precision and are backward-compatible with applications designed for ±5% tolerance.

Parts are grouped by manufacturer and product status to facilitate sourcing decisions based on availability and design phase requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	Product Status	Inventory (Pcs)
RK73B1HTTC271J	KOA Speer Electronics, Inc.	270 Ω	±5%	0.05	±200	-55 ~ 155	0201	Not For New Designs	170345
RK73B1HTTCM271J	KOA Speer Electronics, Inc.	270 Ω	±5%	0.05	±200	-55 ~ 155	0201	Active	1030
AC0201JR-07270RL	YAGEO	270 Ω	±5%	0.05	±200	-55 ~ 155	0201	Active	755
CRCW0201270RJNED	Vishay Dale	270 Ω	±5%	0.05	±200	-55 ~ 155	0201	Active	4115
ERJ-1GNJ271C	Panasonic Electronic Components	270 Ω	±5%	0.05	±200	-55 ~ 125	0201	Active	133738
RC0201JR-07270RL	YAGEO	270 Ω	±5%	0.05	±200	-55 ~ 125	0201	Active	1200
CRCW0201270RFKED	Vishay Dale	270 Ω	±1%	0.05	±100	-55 ~ 155	0201	Active	8325
CRCW0201270RFNED	Vishay Dale	270 Ω	±1%	0.05	±200	-55 ~ 155	0201	Active	65789
ERJ-1GNF2700C	Panasonic Electronic Components	270 Ω	±1%	0.05	±200	-55 ~ 125	0201	Active	89158
RC0201FR-07270RL	YAGEO	270 Ω	±1%	0.05	±200	-55 ~ 125	0201	Active	107457
RMCF0201FT270R	Stackpole Electronics Inc	270 Ω	±1%	0.05	±200	-55 ~ 155	0201	Active	199032

Engineering Selection Recommendations

For Direct Replacement (±5% Tolerance Requirement):

RK73B1HTTCM271J from KOA Speer Electronics is the manufacturer-recommended equivalent with active product status. This part maintains identical electrical specifications and automotive AEC-Q200 qualification as the original RK73B1HTTC271J.

CRCW0201270RJNED from Vishay Dale provides the highest inventory availability (4115 pcs) among direct equivalents with active status and full temperature range support (-55°C ~ 155°C).

ERJ-1GNJ271C from Panasonic Electronic Components offers the largest stock position (133738 pcs) and active product status, though operating temperature range is limited to -55°C ~ 125°C.

For Precision Upgrade (±1% Tolerance):

CRCW0201270RFNED from Vishay Dale combines ±1% tolerance with the full operating temperature range (-55°C ~ 155°C) and substantial inventory (65789 pcs). Temperature coefficient remains ±200ppm/°C.

RMCF0201FT270R from Stackpole Electronics Inc provides ±1% tolerance, AEC-Q200 automotive rating, full temperature range (-55°C ~ 155°C), and the largest upgrade inventory (199032 pcs).

RC0201FR-07270RL from YAGEO offers ±1% tolerance with moisture-resistant composition and 107457 pcs in stock, though operating temperature is limited to -55°C ~ 125°C.

All listed substitutes maintain ROHS3 compliance, MSL 1 rating, and 0201 package compatibility.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM271J directly replace RK73B1HTTC271J?

A: Yes. RK73B1HTTCM271J is the manufacturer-recommended equivalent from KOA Speer Electronics with identical electrical specifications (270 Ω ±5%, 0.05W), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and 0201 package dimensions. The only difference is active product status versus Not For New Designs classification.

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

A: Direct equivalents maintain ±5% tolerance matching the original RK73B1HTTC271J. Upgrade parts feature improved ±1% tolerance while preserving all other specifications. Upgrade parts are backward-compatible with circuits designed for ±5% tolerance and provide enhanced precision where beneficial.

Q: Are all substitute parts automotive-qualified?

A: The original RK73B1HTTC271J carries AEC-Q200 automotive qualification. Among substitutes, RK73B1HTTCM271J and RMCF0201FT270R explicitly maintain AEC-Q200 rating. Other substitutes do not list automotive qualification in provided specifications. Verify AEC-Q200 requirement with component datasheets if automotive application demands this certification.

Q: Does operating temperature range affect substitution?

A: Operating temperature range is a critical parameter. The original part supports -55°C ~ 155°C. ERJ-1GNJ271C, RC0201JR-07270RL, ERJ-1GNF2700C, and RC0201FR-07270RL are limited to -55°C ~ 125°C. These parts are suitable only for applications not exceeding 125°C. For full temperature range requirement, select from RK73B1HTTCM271J, AC0201JR-07270RL, CRCW0201270RJNED, CRCW0201270RFKED, CRCW0201270RFNED, or RMCF0201FT270R.

Q: What packaging formats are available?

A: All listed parts use 0201 (0603 Metric) package with identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm). RK73B1HTTC271J and most substitutes are supplied in Tape & Reel (TR) format. RC0201JR-07270RL is available in Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with assembly equipment requirements.

Q: Can ±1% tolerance parts be used in place of ±5% tolerance specifications?

A: Yes. ±1% tolerance parts are more precise and fully backward-compatible with circuits designed for ±5% tolerance. No circuit redesign is required. Use upgrade parts when enhanced precision provides system benefits or when available inventory favors higher-tolerance options.

Q: What is the significance of Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture exposure precautions. All listed parts carry MSL 1 rating, eliminating moisture-related handling constraints during storage and assembly.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts maintain ROHS3 compliance, meeting environmental and regulatory requirements for lead-free and restricted substance standards.

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