RK73B1HTTC753J Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC753J is a 75 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by KOA Speer Electronics, Inc., this component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. The part carries AEC-Q200 automotive qualification and ROHS3 compliance. Due to its discontinued status, equivalent and substitute parts from active product lines are necessary for ongoing production support and new design alternatives.

Key Parameters

Parameter	Value
Resistance	75 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)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC753J is determined by strict equivalence across the following critical parameters:

Direct Equivalents (Same Electrical & Mechanical Specifications):

Resistance: 75 kOhms (exact match required)
Tolerance: ±5% (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)
Temperature Coefficient: ±200ppm/°C (exact match required)
Operating Temperature: -55°C ~ 155°C minimum (exact match or extended range acceptable)
Physical Dimensions: 0.024" L x 0.012" W (exact match required)
Compliance: ROHS3, MSL 1 (exact match required)

Upgrade Options (Enhanced Specifications):

Tolerance upgrade from ±5% to ±1% (tighter tolerance, backward compatible)
Temperature Coefficient reduction from ±200ppm/°C to ±100ppm/°C (improved stability, backward compatible)
All other parameters remain identical to main part specifications

All substitute parts maintain identical package footprint, thermal characteristics, and environmental ratings to ensure direct PCB compatibility without design modification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Packaging
RK73B1HTTC753J	KOA Speer Electronics	75 kOhms	±5%	0.05	±200	-55 ~ 155	Not For New Designs	Tape & Reel (TR)
RK73B1HTTCM753J	KOA Speer Electronics	75 kOhms	±5%	0.05	±200	-55 ~ 155	Active	-
AC0201JR-0775KL	YAGEO	75 kOhms	±5%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
CRCW020175K0JNED	Vishay Dale	75 kOhms	±5%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
ERJ-1GNJ753C	Panasonic Electronic Components	75 kOhms	±5%	0.05	±200	-55 ~ 125	Active	Tape & Reel (TR)
CRCW020175K0FKED	Vishay Dale	75 kOhms	±1%	0.05	±100	-55 ~ 155	Active	Tape & Reel (TR)
CRCW020175K0FNED	Vishay Dale	75 kOhms	±1%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
CRG0201F75K	TE Connectivity Passive Product	75 kOhms	±1%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)
ERJ-1GNF7502C	Panasonic Electronic Components	75 kOhms	±1%	0.05	±200	-55 ~ 125	Active	Tape & Reel (TR)
RMCF0201FT75K0	Stackpole Electronics Inc	75 kOhms	±1%	0.05	±200	-55 ~ 155	Active	Tape & Reel (TR)

Engineering Selection Recommendations

For Direct Replacement (Same Specifications):

Select from RK73B1HTTCM753J, AC0201JR-0775KL, CRCW020175K0JNED, or ERJ-1GNJ753C when exact electrical and mechanical equivalence is required. All four parts maintain ±5% tolerance, ±200ppm/°C temperature coefficient, and 0.05W power rating. RK73B1HTTCM753J is the manufacturer's active equivalent from KOA Speer Electronics. AC0201JR-0775KL from YAGEO includes moisture-resistant features. CRCW020175K0JNED from Vishay Dale offers the highest inventory availability (6683 pcs). ERJ-1GNJ753C from Panasonic provides the largest stock (62368 pcs) with operating temperature limited to -55°C ~ 125°C.

For Upgraded Performance (±1% Tolerance):

Select from CRCW020175K0FKED, CRCW020175K0FNED, CRG0201F75K, ERJ-1GNF7502C, or RMCF0201FT75K0 when tighter tolerance specifications are required. CRCW020175K0FKED offers ±1% tolerance with ±100ppm/°C temperature coefficient and full -55°C ~ 155°C operating range. CRCW020175K0FNED provides ±1% tolerance with ±200ppm/°C coefficient and maximum inventory (74309 pcs). CRG0201F75K from TE Connectivity maintains ±200ppm/°C with AEC-Q200 rating. ERJ-1GNF7502C from Panasonic offers the highest stock (90345 pcs) but with -55°C ~ 125°C operating range. RMCF0201FT75K0 from Stackpole includes AEC-Q200 automotive qualification.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 rating. Parts designated for automotive applications (AC0201JR-0775KL with moisture resistance, RMCF0201FT75K0 with AEC-Q200) are suitable for automotive circuit boards. Standard industrial applications can use any listed substitute without compliance restrictions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1GNJ753C be used as a direct replacement for RK73B1HTTC753J?

A: Yes, ERJ-1GNJ753C is a direct electrical and mechanical equivalent with identical resistance (75 kOhms), tolerance (±5%), power rating (0.05W), package (0201), and temperature coefficient (±200ppm/°C). The operating temperature range is -55°C ~ 125°C, which covers the original part's minimum specification. Physical dimensions and MSL rating are identical.

Q: What is the difference between the ±5% tolerance parts and ±1% tolerance parts?

A: The ±1% tolerance parts (CRCW020175K0FKED, CRCW020175K0FNED, CRG0201F75K, ERJ-1GNF7502C, RMCF0201FT75K0) provide tighter resistance value accuracy compared to the ±5% tolerance parts. The ±1% parts are backward compatible with circuits designed for ±5% tolerance. CRCW020175K0FKED additionally reduces temperature coefficient to ±100ppm/°C for improved thermal stability.

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

A: All substitute parts listed are available in Tape & Reel (TR) packaging except RK73B1HTTCM753J, which does not specify packaging format in the provided data. Tape & Reel packaging is standard for automated PCB assembly processes.

Q: Can I use CRCW020175K0FKED in place of RK73B1HTTC753J without circuit redesign?

A: Yes. CRCW020175K0FKED is a direct footprint and functional replacement. The upgraded ±1% tolerance and ±100ppm/°C temperature coefficient represent improved performance specifications that are fully backward compatible with circuits designed for ±5% tolerance and ±200ppm/°C operation.

Q: Which substitute part has the best inventory availability?

A: ERJ-1GNF7502C from Panasonic Electronic Components has the highest inventory at 90345 pcs. For direct ±5% tolerance equivalents, ERJ-1GNJ753C offers 62368 pcs. For ±1% tolerance upgrades, CRCW020175K0FNED provides 74309 pcs.

Q: What is the significance of the 0201 package designation?

A: The 0201 package (0603 Metric) is a surface-mount resistor measuring 0.024" L x 0.012" W (0.60mm x 0.30mm) with maximum seated height of 0.010" (0.26mm). All substitute parts maintain identical physical dimensions, ensuring direct PCB footprint compatibility without layout modifications.

Q: Are there any operating temperature limitations I should consider?

A: The original RK73B1HTTC753J and most substitute parts operate across -55°C ~ 155°C. ERJ-1GNJ753C and ERJ-1GNF7502C from Panasonic are limited to -55°C ~ 125°C. Select Panasonic parts only if your application does not require operation above 125°C.

Q: What does ROHS3 compliance mean for this component?

A: ROHS3 compliance indicates the resistor meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, hexavalent chromium, and specified brominated flame retardants. All listed substitute parts maintain ROHS3 compliance.

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