Equivalent & Substitute Parts for RK73B1HTTC623J

Part Overview

The RK73B1HTTC623J is a 62 kOhms ±5% thick film chip resistor rated at 0.05W (1/20W) in 0201 package form factor (0.60mm x 0.30mm). Manufactured by KOA Speer Electronics, Inc., this component is classified as "Not For New Designs" and features automotive AEC-Q200 qualification with operating temperature range of -55°C to 155°C.

Due to its obsolete product status, equivalent and substitute parts from active manufacturers are necessary for ongoing production, maintenance, and new design implementations. Suitable alternatives maintain the core electrical specifications while offering improved availability and active product support from manufacturers including Vishay Dale, Panasonic Electronic Components, and YAGEO.

Key Parameters

Parameter	Value	Substitution Relevance
Resistance Value	62 kOhms	Critical - must match exactly
Tolerance	±5%	Critical - defines acceptable resistance range
Power Rating	0.05W (1/20W)	Critical - thermal dissipation requirement
Package / Case	0201 (0603 Metric)	Critical - physical footprint compatibility
Composition	Thick Film	Important - manufacturing technology
Temperature Coefficient	±200ppm/°C	Important - temperature stability
Operating Temperature Range	-55°C ~ 155°C	Important - environmental limits
RoHS Status	ROHS3 Compliant	Important - regulatory compliance
Moisture Sensitivity Level	MSL 1 (Unlimited)	Important - handling and storage

Substitute Part Grouping Explanation

Substitution logic for the RK73B1HTTC623J is based on strict equivalence of the following parameters:

Critical Matching Parameters:

Resistance: 62 kOhms (exact match required)
Power Rating: 0.05W / 1/20W (exact match required)
Package: 0201 (0603 Metric) (exact match required)
Composition: Thick Film (exact match required)

Compatible Tolerance Levels:

Direct equivalents maintain ±5% tolerance
Upgraded alternatives offer ±1% tolerance (tighter specification, backward compatible)

Temperature and Environmental Compatibility:

Operating temperature range -55°C to 155°C (KOA and Vishay parts)
Operating temperature range -55°C to 125°C (Panasonic parts - acceptable for applications not exceeding 125°C)
Temperature coefficient ±200ppm/°C (standard) or ±100ppm/°C (upgraded)
All candidates maintain MSL 1 and ROHS3 compliance

Substitution Categories:

Direct Manufacturer Equivalent - Same tolerance (±5%), active product status
Manufacturer Recommended - Same specifications, active status from original manufacturer
Upgrade Options - Enhanced tolerance (±1%), improved temperature coefficient

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	Product Status	Inventory
RK73B1HTTC623J	KOA Speer	62 kΩ	±5%	0.05W	0201	±200ppm/°C	-55°C ~ 155°C	Not For New Designs	1076 Pcs
RK73B1HTTCM623J	KOA Speer	62 kΩ	±5%	0.05W	0201	±200ppm/°C	-55°C ~ 155°C	Active	1028 Pcs
AC0201JR-0762KL	YAGEO	62 kΩ	±5%	0.05W	0201	±200ppm/°C	-55°C ~ 155°C	Active	1086 Pcs
CRCW020162K0JNED	Vishay Dale	62 kΩ	±5%	0.05W	0201	±200ppm/°C	-55°C ~ 155°C	Active	1062 Pcs
ERJ-1GEJ623C	Panasonic	62 kΩ	±5%	0.05W	0201	±200ppm/°C	-55°C ~ 125°C	Obsolete	11146 Pcs
ERJ-1GNJ623C	Panasonic	62 kΩ	±5%	0.05W	0201	±200ppm/°C	-55°C ~ 125°C	Active	48992 Pcs
CRCW020162K0FKED	Vishay Dale	62 kΩ	±1%	0.05W	0201	±100ppm/°C	-55°C ~ 155°C	Active	16175 Pcs
CRCW020162K0FNED	Vishay Dale	62 kΩ	±1%	0.05W	0201	±200ppm/°C	-55°C ~ 155°C	Active	40100 Pcs
ERJ-1GNF6202C	Panasonic	62 kΩ	±1%	0.05W	0201	±200ppm/°C	-55°C ~ 125°C	Active	110103 Pcs

Engineering Selection Recommendations

For Direct Replacement (Same Specifications):

Select from active product alternatives when the original RK73B1HTTC623J is unavailable:

RK73B1HTTCM623J (KOA Speer) - Manufacturer recommended equivalent with active product status
AC0201JR-0762KL (YAGEO) - Active alternative with moisture-resistant thick film composition
CRCW020162K0JNED (Vishay Dale) - Active alternative with established supply chain
ERJ-1GNJ623C (Panasonic) - Active alternative with highest inventory availability (48992 Pcs)

All direct replacements maintain ±5% tolerance, 0.05W power rating, 0201 package, and ROHS3 compliance. Selection among these options depends on supply chain preference and packaging requirements (Tape & Reel vs. Cut Tape).

For Temperature-Constrained Applications:

Panasonic parts (ERJ-1GEJ623C, ERJ-1GNJ623C, ERJ-1GNF6202C) operate to -55°C ~ 125°C maximum. These are suitable for applications not exceeding 125°C ambient or component temperature. KOA and Vishay alternatives extend to 155°C and are preferred for automotive and industrial applications requiring full temperature range.

For Enhanced Tolerance Requirements:

Upgrade to ±1% tolerance alternatives when circuit design requires tighter resistance accuracy:

CRCW020162K0FKED (Vishay Dale) - ±1% tolerance, ±100ppm/°C coefficient, -55°C ~ 155°C
CRCW020162K0FNED (Vishay Dale) - ±1% tolerance, ±200ppm/°C coefficient, -55°C ~ 155°C
ERJ-1GNF6202C (Panasonic) - ±1% tolerance, ±200ppm/°C coefficient, -55°C ~ 125°C

These upgrades are backward compatible with designs specified for ±5% tolerance and provide improved circuit performance without footprint or power rating changes.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance, MSL 1 moisture sensitivity rating, and EAR99 export classification. No additional qualification or testing documentation is required for direct substitution within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1GNJ623C replace RK73B1HTTC623J in all applications?

A: ERJ-1GNJ623C is electrically and mechanically compatible for applications operating within -55°C to 125°C. For applications requiring the full -55°C to 155°C temperature range, select CRCW020162K0JNED, AC0201JR-0762KL, or RK73B1HTTCM623J instead.

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

A: Direct equivalents (±5% tolerance) maintain identical specifications to the original part. Upgrade options (±1% tolerance) provide tighter resistance accuracy and improved temperature coefficient stability. Upgrades are backward compatible and can be used in any application designed for ±5% tolerance parts.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Most substitutes are available in Tape & Reel (TR) packaging. ERJ-1GEJ623C is supplied in Cut Tape (CT) & Digi-Reel® format. Verify packaging availability with your supplier before design finalization.

Q: Does tolerance upgrade from ±5% to ±1% require circuit re-qualification?

A: No. Upgrading to ±1% tolerance is a conservative design change that improves circuit performance. No re-qualification is required when substituting a ±5% specified part with a ±1% alternative.

Q: Which substitute offers the best long-term availability?

A: ERJ-1GNF6202C (Panasonic) shows the highest inventory level at 110103 Pcs and active product status, indicating strong long-term availability. CRCW020162K0FNED (Vishay Dale) with 40100 Pcs also demonstrates robust supply commitment.

Q: Can I use CRCW020162K0FKED in place of CRCW020162K0FNED?

A: Yes. Both parts are ±1% tolerance, 62 kOhms, 0.05W, 0201 package. CRCW020162K0FKED features ±100ppm/°C temperature coefficient while CRCW020162K0FNED features ±200ppm/°C. Selection depends on temperature stability requirements for your specific application.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, meeting current regulatory requirements for electronic component procurement.

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