Equivalent & Substitute Parts for RK73B1HTTC223J

Part Overview

The RK73B1HTTC223J is a 22 kOhms ±5% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm) manufactured by KOA Speer Electronics, Inc. This component is AEC-Q200 automotive qualified and RoHS3 compliant. The part is designated as "Not For New Designs," indicating it has been superseded. Equivalent and substitute parts are necessary for ongoing production support, design flexibility, and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	22 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
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the RK73B1HTTC223J is determined by strict equivalence of the following parameters:

Critical Parameters for Direct Substitution:

Resistance value: 22 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
Moisture sensitivity level: 1 (Unlimited)
RoHS compliance: ROHS3

Substitution Categories:

Direct Equivalents (Same Specifications): Parts meeting all critical parameters with identical tolerance (±5%) and temperature coefficient (±200ppm/°C).

Manufacturer Recommended Equivalent: RK73B1HTTCM223J from KOA Speer Electronics, Inc., with identical electrical specifications but active product status.

Upgrade Options (Enhanced Tolerance): Parts with tighter tolerance (±1%) and/or improved temperature coefficient (±100ppm/°C) that maintain all other critical parameters. These provide superior performance while remaining mechanically and electrically compatible.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Temp Range (°C)	Product Status	Features
RK73B1HTTC223J	KOA Speer	22k	±5%	0.05	±200	-55 ~ 155	Not For New Designs	Automotive AEC-Q200
RK73B1HTTCM223J	KOA Speer	22k	±5%	0.05	±200	-55 ~ 155	Active	Automotive AEC-Q200
AC0201JR-0722KL	YAGEO	22k	±5%	0.05	±200	-55 ~ 155	Active	Automotive AEC-Q200, Moisture Resistant
CRCW020122K0JNED	Vishay Dale	22k	±5%	0.05	±200	-55 ~ 155	Active	Thick Film
ERJ-1GNJ223C	Panasonic	22k	±5%	0.05	±200	-55 ~ 125	Active	Thick Film
RC0201JR-0722KL	YAGEO	22k	±5%	0.05	±200	-55 ~ 125	Active	Moisture Resistant
CRCW020122K0FKED	Vishay Dale	22k	±1%	0.05	±100	-55 ~ 155	Active	Upgrade: Tighter Tolerance
CRCW020122K0FNED	Vishay Dale	22k	±1%	0.05	±200	-55 ~ 155	Active	Upgrade: Tighter Tolerance
ERJ-1GNF2202C	Panasonic	22k	±1%	0.05	±200	-55 ~ 125	Active	Upgrade: Tighter Tolerance
RC0201FR-0722KL	YAGEO	22k	±1%	0.05	±200	-55 ~ 125	Active	Upgrade: Tighter Tolerance, Moisture Resistant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

Select RK73B1HTTCM223J as the primary recommended equivalent. This part maintains identical electrical and mechanical specifications to the original RK73B1HTTC223J while offering active product status from the same manufacturer, ensuring design continuity and supply reliability.

For Multi-Source Flexibility:

AC0201JR-0722KL (YAGEO), CRCW020122K0JNED (Vishay Dale), and RC0201JR-0722KL (YAGEO) provide direct electrical equivalence with active status from established manufacturers. All three maintain the 22 kOhms ±5% specification, 0.05W power rating, and 0201 package format. AC0201JR-0722KL and RC0201JR-0722KL include moisture-resistant features, providing additional environmental protection.

For Extended Temperature Range:

CRCW020122K0FKED and CRCW020122K0FNED (Vishay Dale) support the full -55°C ~ 155°C operating range, matching the original part's temperature specification. These are upgrade options with ±1% tolerance.

For Automotive Applications:

AC0201JR-0722KL maintains AEC-Q200 automotive qualification, directly supporting automotive design requirements equivalent to the original part.

For Tolerance-Critical Applications:

Upgrade to ±1% tolerance parts (CRCW020122K0FKED, CRCW020122K0FNED, ERJ-1GNF2202C, or RC0201FR-0722KL) when circuit design requires tighter resistance tolerance. CRCW020122K0FKED additionally provides ±100ppm/°C temperature coefficient for enhanced temperature stability.

Inventory Considerations:

ERJ-1GNJ223C (Panasonic) offers the highest inventory availability (151,328 pcs) among direct equivalents, supporting high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can I use ERJ-1GNJ223C as a direct replacement for RK73B1HTTC223J?

A: Yes. ERJ-1GNJ223C meets all critical electrical parameters: 22 kOhms ±5%, 0.05W power rating, ±200ppm/°C temperature coefficient, and 0201 package. The operating temperature range is -55°C ~ 125°C, which covers the lower portion of the original part's -55°C ~ 155°C range. Verify your application's maximum operating temperature requirement before selection.

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

A: Direct equivalents (RK73B1HTTCM223J, AC0201JR-0722KL, CRCW020122K0JNED, RC0201JR-0722KL, ERJ-1GNJ223C) maintain the original ±5% tolerance specification. Upgrade options (CRCW020122K0FKED, CRCW020122K0FNED, ERJ-1GNF2202C, RC0201FR-0722KL) provide ±1% tolerance for applications requiring tighter resistance accuracy. All parts share the same 0201 package and 0.05W power rating.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity level, matching the original part's environmental compliance profile.

Q: Which substitute offers the best temperature stability?

A: CRCW020122K0FKED provides the best temperature stability with ±100ppm/°C temperature coefficient, compared to ±200ppm/°C in other parts. This part also supports the full -55°C ~ 155°C temperature range.

Q: Can I use a substitute part with a different operating temperature range?

A: Substitutes with narrower temperature ranges (ERJ-1GNJ223C, RC0201JR-0722KL, ERJ-1GNF2202C, RC0201FR-0722KL: -55°C ~ 125°C) are acceptable only if your application's maximum operating temperature does not exceed 125°C. For applications requiring operation above 125°C, select parts with -55°C ~ 155°C range (RK73B1HTTCM223J, AC0201JR-0722KL, CRCW020122K0JNED, CRCW020122K0FKED, CRCW020122K0FNED).

Q: What does "Not For New Designs" mean for the original part?

A: This designation indicates the RK73B1HTTC223J has been superseded and is no longer recommended for new circuit designs. Use active-status equivalents (RK73B1HTTCM223J or other listed substitutes) for new designs to ensure long-term supply availability and manufacturer support.

Q: Are moisture-resistant variants necessary for my application?

A: Moisture-resistant variants (AC0201JR-0722KL, RC0201JR-0722KL, RC0201FR-0722KL) provide enhanced protection in high-humidity or condensing environments. Standard variants are suitable for controlled manufacturing and storage conditions with MSL 1 rating.

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