TRR01MZPJ121 Equivalent & Substitute Parts

Part Overview

The TRR01MZPJ121 is a 120 Ohms ±5% 0.063W (1/16W) chip resistor in 0402 (1005 Metric) package manufactured by Rohm Semiconductor. This thick film resistor features anti-sulfur composition and operates across -55°C to 155°C. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements.

Key Parameters

Parameter	Value
Resistance	120 Ohms
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across electrical and mechanical specifications. The following criteria define valid substitutes for TRR01MZPJ121:

Primary Substitution Criteria:

Resistance value: 120 Ohms (exact match required)
Tolerance: ±5% (exact match required)
Power rating: 0.063W / 1/16W (exact match required)
Package: 0402 (1005 Metric) (exact match required)
Composition: Thick Film (exact match required)
Operating temperature range: -55°C to 155°C minimum (equal or wider range acceptable)
RoHS compliance: ROHS3 Compliant (required for new designs)

Substitution Categories:

Direct Equivalents – Parts meeting all primary criteria with identical electrical and mechanical specifications:

SFR01MZPJ121 (Rohm Semiconductor)
AF0402JR-07120RL (YAGEO)
CR0402-JW-121GLF (Bourns Inc.)
CRG0402J120R/10 (TE Connectivity Passive Product)
CRCW0402120RJNED (Vishay Dale)
CRCW0402120RJNEE (Vishay Dale)
CRCW0402120RJNTD (Vishay Dale)

Upgraded Alternatives – Parts with enhanced specifications (higher tolerance accuracy or power rating) while maintaining core compatibility:

TRR01MZPF1200 (Rohm Semiconductor) – ±1% tolerance, ±100ppm/°C temperature coefficient
ERJ-S02F1200X (Panasonic Electronic Components) – ±1% tolerance, 0.1W power rating
ERJ-S02J121X (Panasonic Electronic Components) – 0.1W power rating

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	AEC-Q200	RoHS Status
TRR01MZPJ121	Rohm Semiconductor	120 Ω	±5%	0.063	±200	-55 to 155	Obsolete	No	ROHS3
SFR01MZPJ121	Rohm Semiconductor	120 Ω	±5%	0.063	±200	-55 to 155	Active	Yes	ROHS3
AF0402JR-07120RL	YAGEO	120 Ω	±5%	0.063	±100	-55 to 155	Active	Yes	ROHS3
CR0402-JW-121GLF	Bourns Inc.	120 Ω	±5%	0.063	±200	-55 to 155	Active	No	ROHS3
CRG0402J120R/10	TE Connectivity Passive Product	120 Ω	±5%	0.063	±200	-55 to 155	Active	No	ROHS3
CRCW0402120RJNED	Vishay Dale	120 Ω	±5%	0.063	±200	-55 to 155	Active	Yes	ROHS3
CRCW0402120RJNEE	Vishay Dale	120 Ω	±5%	0.063	±200	-55 to 155	Active	Yes	ROHS3
CRCW0402120RJNTD	Vishay Dale	120 Ω	±5%	0.063	±200	-55 to 155	Active	No	RoHS non-compliant
TRR01MZPF1200	Rohm Semiconductor	120 Ω	±1%	0.063	±100	-55 to 155	Obsolete	No	ROHS3
ERJ-S02F1200X	Panasonic Electronic Components	120 Ω	±1%	0.1	±200	-55 to 155	Active	Yes	ROHS3
ERJ-S02J121X	Panasonic Electronic Components	120 Ω	±5%	0.1	±200	-55 to 155	Active	Yes	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

SFR01MZPJ121 is the primary recommended direct equivalent. It is manufactured by the same supplier (Rohm Semiconductor), maintains identical electrical and mechanical parameters, and carries active product status with AEC-Q200 automotive qualification. This part provides the most seamless transition from the obsolete TRR01MZPJ121.

CRCW0402120RJNED (Vishay Dale) and CRCW0402120RJNEE (Vishay Dale) are alternative direct equivalents with active status and ROHS3 compliance. Both are AEC-Q200 qualified and widely available.

AF0402JR-07120RL (YAGEO) is an active direct equivalent with AEC-Q200 qualification. It features a lower temperature coefficient (±100ppm/°C) compared to the original specification (±200ppm/°C), which may provide improved stability in temperature-sensitive applications.

CR0402-JW-121GLF (Bourns Inc.) and CRG0402J120R/10 (TE Connectivity Passive Product) are active direct equivalents without AEC-Q200 qualification. These parts are suitable for non-automotive applications.

Avoid: CRCW0402120RJNTD is RoHS non-compliant and not recommended for new designs.

For Enhanced Performance (Upgraded Specifications):

ERJ-S02J121X (Panasonic Electronic Components) provides a power rating upgrade to 0.1W (1/10W) while maintaining ±5% tolerance. This part is active, AEC-Q200 qualified, and ROHS3 compliant. The increased power rating provides additional thermal margin without changing the footprint.

ERJ-S02F1200X (Panasonic Electronic Components) offers both tolerance upgrade (±1%) and power rating upgrade (0.1W). This part is active, AEC-Q200 qualified, and ROHS3 compliant, making it suitable for applications requiring tighter tolerance control and higher power dissipation capability.

TRR01MZPF1200 (Rohm Semiconductor) provides tolerance upgrade to ±1% with improved temperature coefficient (±100ppm/°C). However, this part is classified as obsolete, limiting its long-term availability.

Frequently Asked Questions (FAQ)

Q: Can I use SFR01MZPJ121 as a direct replacement for TRR01MZPJ121?

A: Yes. SFR01MZPJ121 is a direct equivalent with identical resistance (120 Ohms), tolerance (±5%), power rating (0.063W), package (0402), and operating temperature range (-55°C to 155°C). Both are manufactured by Rohm Semiconductor. SFR01MZPJ121 has active product status and AEC-Q200 qualification, making it the preferred replacement.

Q: What is the difference between direct equivalents and upgraded alternatives?

A: Direct equivalents match all electrical and mechanical specifications of the original part. Upgraded alternatives maintain core compatibility but offer enhanced specifications such as tighter tolerance (±1% vs ±5%), higher power rating (0.1W vs 0.063W), or improved temperature coefficient. Upgraded parts are suitable when design margins or performance requirements justify the change.

Q: Are all substitute parts ROHS3 compliant?

A: No. CRCW0402120RJNTD is RoHS non-compliant and should not be used in new designs. All other listed substitutes are ROHS3 compliant.

Q: Which substitute parts carry AEC-Q200 automotive qualification?

A: SFR01MZPJ121, AF0402JR-07120RL, CRCW0402120RJNED, CRCW0402120RJNEE, ERJ-S02F1200X, and ERJ-S02J121X are AEC-Q200 qualified. These parts are suitable for automotive applications.

Q: Can I use a part with higher power rating (0.1W) in place of the original 0.063W specification?

A: Yes. ERJ-S02F1200X and ERJ-S02J121X both feature 0.1W power rating in the same 0402 package. The increased power rating provides additional thermal capability without affecting footprint or electrical performance. This substitution is valid when the higher power rating does not conflict with circuit design constraints.

Q: What is the impact of temperature coefficient differences between substitute parts?

A: The original TRR01MZPJ121 specifies ±200ppm/°C temperature coefficient. AF0402JR-07120RL and TRR01MZPF1200 feature ±100ppm/°C, providing improved resistance stability across temperature variations. This difference is significant only in precision analog circuits or temperature-sensitive applications. For general-purpose applications, both specifications are functionally equivalent.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. Inventory levels vary significantly across manufacturers. CRCW0402120RJNED (Vishay Dale) shows the highest inventory (113,897 pcs), while CRG0402J120R/10 (TE Connectivity) shows lower availability (778 pcs). For high-volume production, verify current inventory status with your supplier before finalizing part selection.

Q: Can I mix different substitute parts within the same design?

A: Yes. All listed direct equivalents are mechanically and electrically interchangeable. However, for consistency in manufacturing and quality control, using a single part number across a design is recommended. If mixing is necessary, ensure all selected parts meet the same compliance requirements (RoHS, AEC-Q200) and operating specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message