Equivalent & Substitute Parts for RK73B1HTTC152J

Part Overview

The RK73B1HTTC152J is a 1.5 kOhm ±5% thick film chip resistor in 0201 package (0603 metric) rated for 0.05W power dissipation. Manufactured by KOA Speer Electronics, this component is AEC-Q200 automotive qualified with operating temperature range of -55°C to 155°C. The part is classified as "Not For New Designs," indicating it has been superseded.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	Specification Basis
Resistance	1.5 kOhms	Exact match required
Tolerance	±5% (standard) / ±1% (upgrade)	Determines substitution category
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 (standard) / ±100ppm/°C (upgrade)	Performance parameter
Operating Temperature	-55°C to 155°C (standard) / -55°C to 125°C (limited)	Application dependent
RoHS Status	ROHS3 Compliant	Regulatory requirement
Moisture Sensitivity	MSL 1 (Unlimited)	Handling and storage

Substitute Part Grouping Explanation

Substitution logic is based on the following criteria:

Primary Substitution Criteria (Mandatory Match):

Resistance value: 1.5 kOhms
Power rating: 0.05W (1/20W)
Package: 0201 (0603 Metric)
Composition: Thick Film
RoHS3 Compliance
MSL 1 rating

Secondary Substitution Criteria (Flexible):

Tolerance: ±5% tolerance parts are direct equivalents; ±1% tolerance parts are upgrades
Temperature Coefficient: ±200ppm/°C is standard; ±100ppm/°C represents improved stability
Operating Temperature Range: -55°C to 155°C is full range; -55°C to 125°C is limited range
Automotive Rating: AEC-Q200 certification is optional but preferred for automotive applications

Substitution Categories:

Direct Manufacturer Equivalent (Same Tolerance ±5%): Parts with identical electrical specifications and tolerance
Upgrade Parts (Tighter Tolerance ±1%): Parts with improved tolerance and temperature coefficient performance
Manufacturer Variant: Same manufacturer, different packaging or product status

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range (°C)	AEC-Q200	Product Status	Inventory (Pcs)
RK73B1HTTC152J	KOA Speer	1.5k	±5%	0.05	±200	-55 to 155	Yes	Not For New Designs	43,192
RK73B1HTTCM152J	KOA Speer	1.5k	±5%	0.05	±200	-55 to 155	Yes	Active	907
AC0201JR-071K5L	YAGEO	1.5k	±5%	0.05	±200	-55 to 155	Yes	Active	17,687
CRCW02011K50JNED	Vishay Dale	1.5k	±5%	0.05	±200	-55 to 155	No	Active	888
ERJ-1GNJ152C	Panasonic	1.5k	±5%	0.05	±200	-55 to 125	No	Active	159,573
RC0201JR-071K5L	YAGEO	1.5k	±5%	0.05	±200	-55 to 125	No	Active	2,735
RMCF0201JT1K50	Stackpole	1.5k	±5%	0.05	±200	-55 to 155	Yes	Active	6,653
CRCW02011K50FKED	Vishay Dale	1.5k	±1%	0.05	±100	-55 to 155	No	Active	5,300
CRCW02011K50FNED	Vishay Dale	1.5k	±1%	0.05	±200	-55 to 155	No	Active	58,377
ERJ-1GNF1501C	Panasonic	1.5k	±1%	0.05	±200	-55 to 125	No	Active	9,494
RC0201FR-071K5L	YAGEO	1.5k	±1%	0.05	±200	-55 to 125	No	Active	27,536

Engineering Selection Recommendations

For Direct Replacement (Same Specifications):

Select RK73B1HTTCM152J as the primary equivalent. This part is manufactured by KOA Speer (same manufacturer as the original), maintains identical electrical specifications (1.5 kOhms ±5%, 0.05W, ±200ppm/°C), supports full operating temperature range (-55°C to 155°C), and holds Active product status. The only difference is packaging variant (Tape & Reel format).

For Automotive Applications Requiring AEC-Q200:

AC0201JR-071K5L (YAGEO) and RMCF0201JT1K50 (Stackpole) are qualified alternatives. Both maintain AEC-Q200 automotive certification, identical electrical specifications, and full temperature range support. AC0201JR-071K5L offers higher inventory availability (17,687 pcs). RMCF0201JT1K50 provides AEC-Q200 qualification with Stackpole manufacturing.

For Non-Automotive Applications:

ERJ-1GNJ152C (Panasonic) offers the highest inventory availability (159,573 pcs) with identical electrical specifications. Operating temperature is limited to -55°C to 125°C, which is acceptable for non-automotive designs not requiring full 155°C operation.

For Improved Tolerance Requirements (±1%):

CRCW02011K50FNED (Vishay Dale) provides ±1% tolerance with full temperature range (-55°C to 155°C) and highest inventory among upgrade options (58,377 pcs). ERJ-1GNF1501C (Panasonic) offers ±1% tolerance with ±200ppm/°C temperature coefficient but limited to -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q1: Can I use a ±1% tolerance part as a direct replacement for the ±5% original?

A: Yes. A ±1% tolerance part is a functional upgrade. It provides tighter resistance tolerance and improved temperature stability (±100ppm/°C in some cases versus ±200ppm/°C). This substitution is valid when the circuit design can accommodate the improved specifications.

Q2: What is the difference between RK73B1HTTC152J and RK73B1HTTCM152J?

A: Both parts are manufactured by KOA Speer with identical electrical specifications (1.5 kOhms ±5%, 0.05W, ±200ppm/°C, -55°C to 155°C). The primary difference is product status: RK73B1HTTC152J is "Not For New Designs" while RK73B1HTTCM152J is "Active." For new designs, RK73B1HTTCM152J is the recommended choice.

Q3: Are all substitute parts RoHS3 compliant?

A: All listed parts are RoHS3 compliant and MSL 1 rated. Compliance status is uniform across all substitutes.

Q4: Which substitute has the best availability?

A: ERJ-1GNJ152C (Panasonic) has the highest inventory at 159,573 pcs. For upgrade parts (±1%), CRCW02011K50FNED (Vishay Dale) has 58,377 pcs available.

Q5: Does operating temperature range affect substitution?

A: Operating temperature range affects application suitability. The original RK73B1HTTC152J supports -55°C to 155°C. Parts limited to -55°C to 125°C (ERJ-1GNJ152C, RC0201JR-071K5L, ERJ-1GNF1501C, RC0201FR-071K5L) are suitable only for applications not requiring 155°C operation.

Q6: What is the significance of AEC-Q200 certification?

A: AEC-Q200 certification indicates automotive-grade qualification. Parts with this rating (RK73B1HTTC152J, RK73B1HTTCM152J, AC0201JR-071K5L, RMCF0201JT1K50) are suitable for automotive applications. Non-certified parts are acceptable for industrial and consumer applications.

Q7: Can I mix different manufacturers in the same design?

A: Yes. All substitute parts meet identical core specifications (1.5 kOhms, 0.05W, 0201 package, thick film composition). Different manufacturers can be used interchangeably provided the operating temperature range and tolerance requirements are met.

Q8: What packaging options are available?

A: All parts are supplied in Tape & Reel (TR) format except RC0201FR-071K5L and CRCW02011K50FKED, which are available in Cut Tape (CT) & Digi-Reel® format. Packaging does not affect electrical performance.

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