Equivalent & Substitute Parts for RK73B1HTTC474J

Part Overview

The RK73B1HTTC474J is a 470 kOhms ±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by KOA Speer Electronics, Inc., this component is designated as Not For New Designs, indicating it has been superseded in the product lifecycle. The part carries AEC-Q200 automotive qualification and ROHS3 compliance. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and sourcing flexibility when the original part becomes unavailable or when design requirements necessitate alternative specifications.

Key Parameters

Parameter	Value
Resistance	470 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)
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC474J is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Resistance value: 470 kOhms (exact match required)
Tolerance: ±5% (minimum acceptable; ±1% tolerance parts are upgrades)
Power rating: 0.05W / 1/20W (exact match required)
Package: 0201 (0603 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±200ppm/°C (exact match for direct substitutes)
Operating Temperature Range: -55°C minimum and 155°C maximum (minimum acceptable)
Termination count: 2 (exact match required)
RoHS and MSL compliance: ROHS3 Compliant, MSL 1 (minimum acceptable)

Substitution Categories:

Direct Equivalents (±5% Tolerance): Parts meeting all primary criteria with identical tolerance and temperature specifications. These include RK73B1HTTCM474J (KOA Speer, Active status), AC0201JR-07470KL (YAGEO), CRCW0201470KJNED (Vishay Dale), ERJ-1GNJ474C (Panasonic), and RC0201JR-07470KL (YAGEO). All direct equivalents maintain the ±5% tolerance and ±200ppm/°C temperature coefficient.

Upgrade Options (±1% Tolerance): Parts with tighter tolerance specifications (±1%) and improved temperature coefficients. These include CRCW0201470KFKED (±100ppm/°C), CRCW0201470KFNED (±200ppm/°C), and ERJ-1GNF4703C (±200ppm/°C). Upgrade parts are electrically superior and backward-compatible for applications requiring higher precision.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	Product Status	Inventory (Pcs)
RK73B1HTTC474J	KOA Speer	470 kΩ	±5%	0.05	±200	-55 ~ 155	0201	Not For New Designs	12092
RK73B1HTTCM474J	KOA Speer	470 kΩ	±5%	0.05	±200	-55 ~ 155	0201	Active	1041
AC0201JR-07470KL	YAGEO	470 kΩ	±5%	0.05	±200	-55 ~ 155	0201	Active	1107
CRCW0201470KJNED	Vishay Dale	470 kΩ	±5%	0.05	±200	-55 ~ 155	0201	Active	11124
ERJ-1GNJ474C	Panasonic	470 kΩ	±5%	0.05	±200	-55 ~ 125	0201	Active	49111
RC0201JR-07470KL	YAGEO	470 kΩ	±5%	0.05	±200	-55 ~ 125	0201	Active	42514
CRCW0201470KFKED	Vishay Dale	470 kΩ	±1%	0.05	±100	-55 ~ 155	0201	Active	1119
CRCW0201470KFNED	Vishay Dale	470 kΩ	±1%	0.05	±200	-55 ~ 155	0201	Active	1017
ERJ-1GNF4703C	Panasonic	470 kΩ	±1%	0.05	±200	-55 ~ 125	0201	Active	399249

Engineering Selection Recommendations

For Direct Replacement (Equivalent Specifications):

Select from the direct equivalent group when the original RK73B1HTTC474J specification of ±5% tolerance and ±200ppm/°C temperature coefficient is required. RK73B1HTTCM474J (KOA Speer) is the manufacturer-recommended successor with Active product status, ensuring long-term availability and design continuity. CRCW0201470KJNED (Vishay Dale) offers the highest inventory level (11124 pcs) among direct equivalents and maintains full specification compliance. ERJ-1GNJ474C (Panasonic) provides substantial inventory (49111 pcs) and Active status. All direct equivalents carry ROHS3 compliance and MSL 1 rating.

For Temperature Range Consideration:

Applications requiring the full -55°C to 155°C operating range must use RK73B1HTTCM474J, CRCW0201470KJNED, CRCW0201470KFKED, or CRCW0201470KFNED. Parts ERJ-1GNJ474C and RC0201JR-07470KL are limited to -55°C to 125°C and are suitable only for applications within this narrower range.

For Precision Upgrade:

When circuit design permits tighter tolerance specifications, upgrade to ±1% tolerance parts: CRCW0201470KFNED or ERJ-1GNF4703C. CRCW0201470KFKED offers the lowest temperature coefficient (±100ppm/°C) for applications with stringent thermal stability requirements. ERJ-1GNF4703C provides the largest inventory (399249 pcs) among upgrade options.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. All parts are AEC-Q200 qualified or equivalent thick film construction suitable for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1GNJ474C replace RK73B1HTTC474J in all applications?

A: ERJ-1GNJ474C is a direct electrical equivalent with matching 470 kOhms ±5% tolerance, 0.05W power rating, and 0201 package. However, its operating temperature range is limited to -55°C to 125°C, compared to the original part's -55°C to 155°C. Use ERJ-1GNJ474C only in applications operating within the -55°C to 125°C range.

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

A: Direct equivalents (±5% tolerance) maintain identical electrical specifications to RK73B1HTTC474J. Upgrade parts (±1% tolerance) provide tighter tolerance and lower temperature coefficients, making them suitable for precision applications. Upgrade parts are backward-compatible and can replace direct equivalents in any application.

Q: Is RK73B1HTTCM474J the only KOA Speer substitute?

A: RK73B1HTTCM474J is the manufacturer-recommended Active successor to RK73B1HTTC474J. It maintains identical specifications and is the preferred choice for design continuity within the KOA Speer product line.

Q: Which substitute offers the best inventory availability?

A: ERJ-1GNF4703C (Panasonic) provides the highest inventory at 399249 pcs. Among direct equivalents with ±5% tolerance, ERJ-1GNJ474C offers 49111 pcs and CRCW0201470KJNED offers 11124 pcs.

Q: Are all substitutes suitable for automotive applications?

A: RK73B1HTTC474J and RK73B1HTTCM474J carry explicit AEC-Q200 automotive qualification. AC0201JR-07470KL carries AEC-Q200 qualification. Other substitutes (CRCW0201470KJNED, ERJ-1GNJ474C, RC0201JR-07470KL, and upgrade parts) are thick film construction suitable for automotive use but do not carry explicit AEC-Q200 designation in the provided specifications.

Q: Can I use CRCW0201470KFNED in place of RK73B1HTTC474J?

A: Yes. CRCW0201470KFNED is electrically superior with ±1% tolerance and maintains the full -55°C to 155°C operating range. It is a backward-compatible upgrade suitable for any application accepting the original part.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All substitute parts carry MSL 1 rating, ensuring compatibility with standard manufacturing processes.

Q: Do all substitutes use the same 0201 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). They are mechanically interchangeable on PCB layouts designed for 0201 components.

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