Equivalent & Substitute Parts for RK73B1HTTC754J

Part Overview

The RK73B1HTTC754J is a 750 kOhm ±5% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated for 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) surface mount package. This component is AEC-Q200 automotive qualified and RoHS3 compliant. The part is classified as "Not For New Designs," indicating it has been superseded. Identifying equivalent and substitute parts is necessary to support existing designs, manage inventory transitions, and ensure continued component availability for production and maintenance applications.

Key Parameters

Parameter	Value
Resistance	750 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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC754J is determined by strict equivalence of the following parameters:

Critical Parameters (Must Match Exactly):

Resistance value: 750 kOhms
Package / Case: 0201 (0603 Metric)
Power rating: 0.05W (1/20W)
Composition: Thick Film
Number of Terminations: 2

Allowable Variation Parameters:

Tolerance: ±5% (equivalent parts) or ±1% (upgrade parts with improved tolerance)
Temperature Coefficient: ±200ppm/°C (standard) or ±100ppm/°C (upgrade)
Operating Temperature Range: -55°C ~ 155°C (standard) or -55°C ~ 125°C (acceptable for most applications)
Automotive Rating: AEC-Q200 (preferred for automotive applications)
Manufacturer: Different manufacturers acceptable if all critical parameters match

Compliance Parameters (Must Maintain):

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories: Direct Equivalents (matching tolerance and temperature coefficient) and Upgrade Parts (improved tolerance and/or temperature coefficient specifications).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	Product Status	AEC-Q200
RK73B1HTTC754J	KOA Speer	750k	±5%	0.05	±200	-55 ~ 155	0201	Not For New Designs	Yes
RK73B1HTTCM754J	KOA Speer	750k	±5%	0.05	±200	-55 ~ 155	0201	Active	Yes
AC0201JR-07750KL	YAGEO	750k	±5%	0.05	±200	-55 ~ 155	0201	Active	Yes
CRCW0201750KJNED	Vishay Dale	750k	±5%	0.05	±200	-55 ~ 155	0201	Active	No
ERJ-1GNJ754C	Panasonic	750k	±5%	0.05	±200	-55 ~ 125	0201	Active	No
CRCW0201750KFKED	Vishay Dale	750k	±1%	0.05	±100	-55 ~ 155	0201	Active	No
CRCW0201750KFNED	Vishay Dale	750k	±1%	0.05	±200	-55 ~ 155	0201	Active	No
CRG0201F750K	TE Connectivity	750k	±1%	0.05	±200	-55 ~ 155	0201	Active	No
ERJ-1GNF7503C	Panasonic	750k	±1%	0.05	±200	-55 ~ 125	0201	Active	No

Engineering Selection Recommendations

For Direct Replacement (Equivalent Tolerance ±5%):

RK73B1HTTCM754J (KOA Speer Electronics, Inc.) — Recommended manufacturer equivalent. Active product status. Maintains identical electrical specifications and AEC-Q200 automotive qualification. Preferred for automotive applications requiring AEC-Q200 compliance.
AC0201JR-07750KL (YAGEO) — Direct equivalent with active product status. Maintains ±5% tolerance, ±200ppm/°C temperature coefficient, and full -55°C ~ 155°C operating range. Includes AEC-Q200 automotive qualification and moisture-resistant thick film composition. Suitable for automotive and industrial applications.
CRCW0201750KJNED (Vishay Dale) — Direct equivalent with active product status. Maintains ±5% tolerance and ±200ppm/°C temperature coefficient. Does not carry AEC-Q200 rating; suitable for non-automotive applications or where automotive qualification is not required.
ERJ-1GNJ754C (Panasonic Electronic Components) — Direct equivalent with active product status. Maintains ±5% tolerance and ±200ppm/°C temperature coefficient. Operating temperature range limited to -55°C ~ 125°C (acceptable for most applications). Does not carry AEC-Q200 rating.

For Upgraded Performance (Improved Tolerance ±1%):

CRCW0201750KFKED (Vishay Dale) — Upgrade option with ±1% tolerance and ±100ppm/°C temperature coefficient. Full -55°C ~ 155°C operating range. Suitable when improved tolerance and temperature stability are required.
CRCW0201750KFNED (Vishay Dale) — Upgrade option with ±1% tolerance and ±200ppm/°C temperature coefficient. Full -55°C ~ 155°C operating range. Suitable when improved tolerance is required while maintaining standard temperature coefficient.
CRG0201F750K (TE Connectivity Passive Product) — Upgrade option with ±1% tolerance and ±200ppm/°C temperature coefficient. Full -55°C ~ 155°C operating range. Active product status.
ERJ-1GNF7503C (Panasonic Electronic Components) — Upgrade option with ±1% tolerance and ±200ppm/°C temperature coefficient. Operating temperature range limited to -55°C ~ 125°C. Active product status with high inventory availability.

Selection Criteria:

Automotive applications requiring AEC-Q200 compliance: RK73B1HTTCM754J or AC0201JR-07750KL
General industrial/consumer applications: Any direct equivalent or upgrade option
Applications requiring improved tolerance: Any upgrade part (±1% tolerance)
Applications requiring improved temperature stability: CRCW0201750KFKED (±100ppm/°C)
High inventory availability: ERJ-1GNJ754C or ERJ-1GNF7503C (Panasonic)

Frequently Asked Questions (FAQ)

Q1: Can I use a ±1% tolerance part as a substitute for the ±5% RK73B1HTTC754J?

A: Yes. A ±1% tolerance part is a direct upgrade and provides improved accuracy. The ±1% tolerance is a subset of the ±5% tolerance specification, meaning any circuit designed for ±5% tolerance will function correctly with a ±1% part. This is considered an upgrade substitution.

Q2: What is the difference between direct equivalents and upgrade parts?

A: Direct equivalents maintain the same tolerance (±5%) and temperature coefficient (±200ppm/°C) as the original RK73B1HTTC754J. Upgrade parts offer improved tolerance (±1%) and/or improved temperature coefficient (±100ppm/°C), providing better performance and stability. Both categories are electrically compatible with the original part.

Q3: Does the operating temperature range difference between -55°C ~ 155°C and -55°C ~ 125°C affect compatibility?

A: The RK73B1HTTC754J operates from -55°C ~ 155°C. Parts with -55°C ~ 125°C range (such as ERJ-1GNJ754C and ERJ-1GNF7503C) are suitable for most applications but may not be appropriate for designs requiring operation above 125°C. Verify your application's maximum operating temperature requirement before selection.

Q4: Is AEC-Q200 automotive qualification required for my application?

A: AEC-Q200 qualification is required only for automotive applications. RK73B1HTTCM754J and AC0201JR-07750KL carry AEC-Q200 qualification. Other substitute parts do not carry this rating and are suitable for industrial, consumer, and non-automotive applications. Confirm your application requirements before selection.

Q5: Can I substitute parts from different manufacturers?

A: Yes. All substitute parts listed maintain identical critical parameters (750 kOhms, ±5% or ±1% tolerance, 0.05W, 0201 package, thick film composition). Different manufacturers are acceptable provided all electrical and mechanical specifications match. Verify RoHS3 compliance and MSL rating for your supply chain requirements.

Q6: What does "Not For New Designs" mean for the RK73B1HTTC754J?

A: This status indicates the part has been superseded and is no longer recommended for new product designs. However, it remains available for existing designs and legacy product support. For new designs, select from active status parts such as RK73B1HTTCM754J, AC0201JR-07750KL, or other active equivalents listed.

Q7: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant, matching the compliance status of the original RK73B1HTTC754J. All parts maintain Moisture Sensitivity Level 1 (Unlimited).

Q8: Which substitute part offers the best combination of availability and performance?

A: ERJ-1GNJ754C (Panasonic) offers the highest inventory availability (44,364 pcs) with direct equivalent specifications. For upgraded performance with high availability, ERJ-1GNF7503C (Panasonic) provides ±1% tolerance with 85,475 pcs in stock. For automotive applications, RK73B1HTTCM754J (KOA Speer) is the recommended active equivalent with AEC-Q200 qualification.

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