MCR01MZPJ124 Equivalent & Substitute Parts

Part Overview

The MCR01MZPJ124 is a 120 kOhms ±5% thick film chip resistor in 0402 (1005 Metric) package rated for 1/16W (0.063W) power dissipation. Manufactured by Rohm Semiconductor as part of the MCR series, this component is qualified to automotive AEC-Q200 standards and operates across -55°C to 155°C. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	120 kOhms
Tolerance	±5%
Power Rating	0.063W (1/16W)
Package	0402 (1005 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (120 kOhms), tolerance (±5%), power rating (0.063W minimum), package format (0402), composition (thick film), and operating temperature range (-55°C to 155°C). All substitute parts listed maintain these core electrical and mechanical specifications. Temperature coefficient variation (±100ppm/°C to ±200ppm/°C) and automotive qualification differences are noted but do not preclude substitution where the primary application parameters are met. One upgrade option with improved tolerance (±1%) is included for applications requiring tighter resistance accuracy.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status
MCR01MZPJ124	Rohm Semiconductor	120 kOhms	±5%	0.063	±200	-55 to 155	Yes	Discontinued
MCR01MRTJ124	Rohm Semiconductor	120 kOhms	±5%	0.063	±200	-55 to 155	No	Discontinued
CRCW0402120KJNED	Vishay Dale	120 kOhms	±5%	0.063	±200	-55 to 155	Yes	Active
ERJ-2GEJ124X	Panasonic Electronic Components	120 kOhms	±5%	0.1	±200	-55 to 155	Yes	Active
RC0402JR-07120KL	YAGEO	120 kOhms	±5%	0.063	±100	-55 to 155	No	Active
RMCF0402JT120K	Stackpole Electronics Inc	120 kOhms	±5%	0.063	±100	-55 to 155	Yes	Active
CRCW0402120KFKED	Vishay Dale	120 kOhms	±1%	0.063	±100	-55 to 155	Yes	Active
CR0402-JW-124GLF	Bourns Inc.	120 kOhms	±5%	0.063	±200	-55 to 155	No	Active

Engineering Selection Recommendations

For direct replacement in automotive applications requiring AEC-Q200 qualification, CRCW0402120KJNED (Vishay Dale) and RMCF0402JT120K (Stackpole Electronics Inc) are primary candidates. Both maintain identical electrical specifications and automotive certification. CRCW0402120KJNED offers superior inventory availability (36,303 units) and active product status. RMCF0402JT120K provides equivalent performance with active status and 5,143 units in stock.

For non-automotive applications or where AEC-Q200 is not required, RC0402JR-07120KL (YAGEO) and CR0402-JW-124GLF (Bourns Inc.) are functionally equivalent with active product status and substantial inventory. RC0402JR-07120KL offers the highest inventory level (235,956 units).

For applications requiring improved tolerance performance, CRCW0402120KFKED (Vishay Dale) provides ±1% tolerance with AEC-Q200 qualification, active status, and 65,132 units available. This upgrade option maintains all other electrical and mechanical parameters.

ERJ-2GEJ124X (Panasonic Electronic Components) is functionally equivalent with AEC-Q200 qualification and active status; however, the 0.1W power rating exceeds the original 0.063W specification and should be selected only where this higher rating is acceptable.

Frequently Asked Questions (FAQ)

Q: Can MCR01MRTJ124 replace MCR01MZPJ124 in automotive applications? A: MCR01MRTJ124 matches all electrical specifications but lacks AEC-Q200 automotive qualification. Use only in non-automotive circuits or where automotive certification is not required.

Q: What is the difference between the ±5% and ±1% tolerance options? A: Both maintain 120 kOhms nominal resistance in 0402 package. The ±1% option (CRCW0402120KFKED) provides tighter tolerance for precision circuits. The ±5% options are suitable for general-purpose applications.

Q: Is ERJ-2GEJ124X a suitable replacement despite the higher power rating? A: ERJ-2GEJ124X (0.1W) exceeds the original 0.063W specification. It is electrically compatible and may be used where the higher power rating does not create thermal or space constraints. Verify thermal design margins before substitution.

Q: Which substitute offers the best supply availability? A: RC0402JR-07120KL (YAGEO) has the highest inventory at 235,956 units. For automotive-qualified alternatives, CRCW0402120KJNED (Vishay Dale) provides 36,303 units.

Q: Are all substitutes ROHS3 compliant? A: All listed substitutes are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specifications.

Q: Can I use these substitutes interchangeably on the same PCB? A: All substitutes share identical 0402 package dimensions and footprint. Electrical interchangeability is confirmed for the specified parameters. Verify design requirements for temperature coefficient and automotive certification before final selection.

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