TRR01MZPJ122 Equivalent & Substitute Parts

Part Overview

The TRR01MZPJ122 is a 1.2 kOhms ±5% 0.063W thick film chip resistor in 0402 (1005 Metric) package manufactured by Rohm Semiconductor. This part is classified as obsolete, making equivalent and substitute components necessary for ongoing production and design requirements. The component features anti-sulfur construction and operates across -55°C to 155°C temperature range with RoHS3 compliance.

Key Parameters

Parameter	Value
Resistance	1.2 kOhms
Tolerance	±5%
Power Rating	0.063W (1/16W)
Package	0402 (1005 Metric)
Composition	Thick Film
Features	Anti-Sulfur
Temperature Coefficient	±200ppm/°C
Operating Temperature	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Direct Equivalents maintain identical electrical specifications (1.2 kOhms ±5%, 0.063W) and mechanical compatibility (0402 package, 2 terminations). These parts are interchangeable without circuit redesign.

Upgrade Substitutes provide enhanced specifications while maintaining the same resistance value and package footprint. These include improved tolerance (±1% vs ±5%) and increased power rating (0.1W vs 0.063W), allowing direct replacement with performance benefits.

Qualifying Parameters for Substitution:

Resistance value: 1.2 kOhms (exact match required)
Package: 0402 (1005 Metric) (exact match required)
Composition: Thick Film (exact match required)
Anti-Sulfur feature: Required
Operating temperature range: -55°C ~ 155°C minimum (exact match or wider range acceptable)
RoHS3 compliance: Required

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	Status	AEC-Q200
TRR01MZPJ122	Rohm Semiconductor	1.2 kΩ	±5%	0.063	±200	0402	Obsolete	No
SFR01MZPJ122	Rohm Semiconductor	1.2 kΩ	±5%	0.063	±200	0402	Active	Yes
AF0402JR-071K2L	YAGEO	1.2 kΩ	±5%	0.063	±100	0402	Active	Yes
ERJ-S02J122X	Panasonic Electronic Components	1.2 kΩ	±5%	0.1	±200	0402	Active	Yes
ERJ-S02F1201X	Panasonic Electronic Components	1.2 kΩ	±1%	0.1	±200	0402	Active	Yes

Engineering Selection Recommendations

SFR01MZPJ122 (Rohm Semiconductor) is the primary direct equivalent, offering identical electrical and mechanical specifications to the obsolete TRR01MZPJ122 while maintaining active product status. This part adds AEC-Q200 automotive qualification and is available in higher inventory quantities (10,636 pcs).

AF0402JR-071K2L (YAGEO) provides direct equivalence with improved temperature coefficient performance (±100ppm/°C vs ±200ppm/°C). AEC-Q200 certification and active status support automotive and industrial applications.

ERJ-S02J122X (Panasonic Electronic Components) serves as an upgrade substitute with increased power rating (0.1W vs 0.063W) while maintaining ±5% tolerance. This part accommodates higher dissipation requirements without package change.

ERJ-S02F1201X (Panasonic Electronic Components) represents the highest specification upgrade with ±1% tolerance and 0.1W power rating. Selection is appropriate when tighter tolerance control is required.

All substitute parts maintain RoHS3 compliance, MSL 1 rating, and -55°C to 155°C operating temperature range. Selection should prioritize active product status and AEC-Q200 certification for production continuity and automotive applications.

Frequently Asked Questions (FAQ)

Q: Can SFR01MZPJ122 directly replace TRR01MZPJ122 in existing designs?

A: Yes. SFR01MZPJ122 maintains identical resistance (1.2 kOhms), tolerance (±5%), power rating (0.063W), package (0402), and operating temperature range (-55°C to 155°C). The primary difference is active product status and AEC-Q200 automotive qualification.

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

A: Direct equivalents (SFR01MZPJ122, AF0402JR-071K2L) match all electrical and mechanical specifications of the original part. Upgrade substitutes (ERJ-S02J122X, ERJ-S02F1201X) provide enhanced performance through increased power rating or improved tolerance while maintaining the same package and resistance value.

Q: Are all substitute parts qualified for automotive applications?

A: SFR01MZPJ122, AF0402JR-071K2L, ERJ-S02J122X, and ERJ-S02F1201X all carry AEC-Q200 certification, qualifying them for automotive use. The original TRR01MZPJ122 does not have this certification.

Q: Does package compatibility guarantee mechanical fit?

A: Yes. All listed parts use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W, 1.00mm x 0.50mm) and 2 terminations. Height variations (0.015" to 0.016" seated maximum) remain within standard PCB assembly tolerances.

Q: Can ERJ-S02F1201X be used where ERJ-S02J122X is specified?

A: Yes. ERJ-S02F1201X provides superior specifications with ±1% tolerance and 0.1W power rating compared to ERJ-S02J122X (±5%, 0.1W). The tighter tolerance and identical power rating ensure compatibility in all applications requiring the lower-specification part.

Q: What is the significance of the anti-sulfur feature?

A: Anti-sulfur construction protects the resistor from sulfur-containing environmental contaminants that can degrade performance. All substitute parts maintain this feature, ensuring reliability in industrial and automotive environments.

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