ERJ-1TYJ202U Equivalent & Substitute Parts

Part Overview

The ERJ-1TYJ202U is a 2 kOhms ±5% 1W thick film chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This part carries Automotive AEC-Q200 qualification and is rated for operating temperatures from -55°C to 155°C. The product status is listed as Not For New Designs, making identification of equivalent and substitute parts essential for ongoing production support and design alternatives.

Key Parameters

Parameter	Value
Resistance	2 kOhms
Tolerance	±5%
Power Rating	1W
Package / Case	2512 (6432 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the ERJ-1TYJ202U is determined by the following critical parameters: resistance value (2 kOhms), tolerance (±5%), power rating (1W), package type (2512), composition (thick film), and automotive qualification (AEC-Q200). Parts are grouped into three categories based on substitution type:

Direct Equivalents maintain all electrical and mechanical specifications identical to the main part. These parts are pin-compatible, footprint-compatible, and require no circuit redesign.

Manufacturer Recommended Substitutes are offered by Panasonic as alternatives with minor variations in package dimensions, features, or product status. The ERJ-B1AJ202U differs in package type (Wide 2010) and includes current sense capability. The ERJ-S1TJ202U maintains identical package and electrical specifications but adds anti-sulfur protection and carries Active product status.

Upgrade Options provide enhanced specifications such as improved tolerance (±1% instead of ±5%) or increased power rating (1.5W or 2W). These parts are suitable when design margins permit higher performance requirements.

Cross-Manufacturer Direct Substitutes from Vishay Dale, TE Connectivity, and Stackpole Electronics maintain identical electrical and mechanical specifications with AEC-Q200 automotive qualification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	RoHS
ERJ-1TYJ202U	Panasonic	2 kOhms	±5%	1W	2512	±200ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	ROHS3
ERJ-B1AJ202U	Panasonic	2 kOhms	±5%	1W	Wide 2010 (5025)	±200ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3
ERJ-1TNF2001U	Panasonic	2 kOhms	±1%	1W	2512	±100ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	ROHS3
ERJ-S1TJ202U	Panasonic	2 kOhms	±5%	1W	2512	±200ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3
35202K0JT	TE Connectivity	2 kOhms	±5%	1W	2512	±200ppm/°C	-55°C ~ 125°C	No	Active	ROHS3
35212K0FT	TE Connectivity	2 kOhms	±1%	2W	2512	±100ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3
CRCW25122K00JNEG	Vishay Dale	2 kOhms	±5%	1W	2512	±200ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3
CRCW25122K00JNTG	Vishay Dale	2 kOhms	±5%	1W	2512	±200ppm/°C	-55°C ~ 155°C	No	Active	RoHS non-compliant
RMCF2512JT2K00	Stackpole Electronics	2 kOhms	±5%	1W	2512	±200ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3
CRCW25122K00JNEGHP	Vishay Dale	2 kOhms	±5%	1.5W	2512	±200ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3
RMCF2512FT2K00	Stackpole Electronics	2 kOhms	±1%	1W	2512	±100ppm/°C	-55°C ~ 155°C	Yes	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required):

CRCW25122K00JNEG (Vishay Dale), RMCF2512JT2K00 (Stackpole Electronics), and ERJ-S1TJ202U (Panasonic) are direct electrical and mechanical equivalents. All three maintain 2 kOhms ±5% 1W specifications in 2512 package with AEC-Q200 automotive qualification, ROHS3 compliance, and -55°C to 155°C operating range. RMCF2512JT2K00 offers the highest inventory availability (492,165 pcs). ERJ-S1TJ202U carries Active product status and includes anti-sulfur protection.

For Improved Tolerance Requirements:

ERJ-1TNF2001U (Panasonic) and RMCF2512FT2K00 (Stackpole Electronics) provide ±1% tolerance with reduced temperature coefficient (±100ppm/°C) while maintaining 1W power rating and 2512 package. Both carry AEC-Q200 qualification and ROHS3 compliance.

For Enhanced Power Handling:

CRCW25122K00JNEGHP (Vishay Dale) increases power rating to 1.5W with pulse withstanding capability. 35212K0FT (TE Connectivity) provides 2W power rating with ±1% tolerance and AEC-Q200 qualification, suitable for applications requiring higher thermal margin.

For Non-Automotive Applications:

35202K0JT (TE Connectivity) is suitable when AEC-Q200 qualification is not required. Operating temperature range is limited to -55°C to 125°C.

Not Recommended:

CRCW25122K00JNTG (Vishay Dale) is RoHS non-compliant and REACH affected, unsuitable for new designs or regulated applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-S1TJ202U replace ERJ-1TYJ202U directly?

A: Yes. Both parts share identical electrical specifications (2 kOhms ±5% 1W), package type (2512), operating temperature range (-55°C to 155°C), and AEC-Q200 automotive qualification. ERJ-S1TJ202U carries Active product status and includes anti-sulfur protection, making it suitable for direct substitution.

Q: What is the difference between ERJ-B1AJ202U and ERJ-1TYJ202U?

A: ERJ-B1AJ202U uses a different package type (Wide 2010 / 5025 Metric) compared to the 2512 package of ERJ-1TYJ202U. While electrical specifications are identical, the different package requires PCB footprint redesign. ERJ-B1AJ202U includes current sense capability and carries Active product status.

Q: Can I use CRCW25122K00JNEGHP as a direct replacement?

A: CRCW25122K00JNEGHP is electrically compatible but provides enhanced specifications: 1.5W power rating instead of 1W, and pulse withstanding capability. It maintains the same 2512 package and AEC-Q200 qualification. Use is appropriate when design margins permit higher power handling.

Q: Why should I avoid CRCW25122K00JNTG?

A: CRCW25122K00JNTG is RoHS non-compliant and REACH affected. It is unsuitable for applications requiring regulatory compliance or new design implementations.

Q: What is the inventory status of suitable alternatives?

A: RMCF2512JT2K00 (Stackpole) offers the highest availability at 492,165 pcs. CRCW25122K00JNEG (Vishay) provides 2,400 pcs. ERJ-S1TJ202U (Panasonic) has 844 pcs in stock. All three are Active status parts with full AEC-Q200 qualification.

Q: Can I use a ±1% tolerance part instead of ±5%?

A: Yes. ERJ-1TNF2001U and RMCF2512FT2K00 provide ±1% tolerance, which is a tighter specification suitable for applications requiring improved accuracy. Both maintain 1W power rating, 2512 package, and AEC-Q200 qualification.

Q: Does operating temperature range affect substitution?

A: Yes. The main part and most direct substitutes operate from -55°C to 155°C. TE Connectivity 35202K0JT is limited to -55°C to 125°C, making it unsuitable for applications requiring the full 155°C upper limit.

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