ESR25JZPJ821 Equivalent & Substitute Parts

Part Overview

The ESR25JZPJ821 is a 820 Ohms ±5% thick film chip resistor manufactured by Rohm Semiconductor in the 1210 (3225 Metric) package. Rated for 0.667W (2/3W) power dissipation, this component meets automotive AEC-Q200 standards with pulse withstanding capability and operates across -55°C to 155°C. The part is currently in active production status with 906 units in stock.

Equivalent and substitute parts become necessary when the primary part faces supply constraints, lead time extensions, or when design requirements allow for alternative manufacturers meeting identical electrical and mechanical specifications. This reference provides direct substitutes and upgrades based on strict parameter compatibility.

Key Parameters

Parameter	Value
Resistance	820 Ohms
Tolerance	±5%
Power Rating	0.667W (2/3W)
Package	1210 (3225 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 the following critical parameters:

Resistance Value: Must be 820 Ohms ±5%
Package Type: Must be 1210 (3225 Metric)
Tolerance: Must be ±5%
Temperature Coefficient: Must be ±200ppm/°C
Operating Temperature Range: Must support -55°C to 155°C
Automotive Compliance: Must meet AEC-Q200 standard
Composition: Thick film construction
RoHS Compliance: ROHS3 Compliant

The substitute parts listed below meet all these core parameters. Power rating variations (0.5W, 0.75W) represent upgrades that maintain full compatibility while providing enhanced thermal performance. All substitutes are available in Tape & Reel or Cut Tape packaging formats.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	Status	Inventory
ESR25JZPJ821	Rohm Semiconductor	820Ω	±5%	0.667	1210	±200ppm/°C	-55 to 155°C	Yes	Active	906
ERJ-P14J821U	Panasonic	820Ω	±5%	0.5	1210	±200ppm/°C	-55 to 155°C	Yes	Active	955
CRCW1210820RJNEA	Vishay Dale	820Ω	±5%	0.5	1210	±200ppm/°C	-55 to 155°C	Yes	Active	6050
CRCW1210820RJNEAHP	Vishay Dale	820Ω	±5%	0.75	1210	±200ppm/°C	-55 to 155°C	Yes	Active	5212
ERJ-14YJ821U	Panasonic	820Ω	±5%	0.5	1210	±200ppm/°C	-55 to 155°C	Yes	Not For New Designs	15487
RMCF1210JT820R	Stackpole Electronics	820Ω	±5%	0.5	1210	±200ppm/°C	-55 to 155°C	Yes	Active	1226

Engineering Selection Recommendations

Primary Substitutes (Active Status)

ERJ-P14J821U, CRCW1210820RJNEA, and RMCF1210JT820R are direct substitutes with active product status. These parts maintain identical electrical specifications and AEC-Q200 compliance. Selection among these three depends on packaging preference (Tape & Reel versus Cut Tape) and inventory availability.

Enhanced Performance Option

CRCW1210820RJNEAHP provides a 0.75W power rating upgrade while maintaining all other specifications. This part is suitable for applications requiring improved thermal margin without circuit redesign.

Legacy Consideration

ERJ-14YJ821U carries "Not For New Designs" status despite high inventory availability. This part remains electrically compatible but should not be selected for new product development. Existing designs currently using this part may continue with it, but migration to active-status alternatives is recommended for long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can I use a 0.5W rated substitute in place of the 0.667W ESR25JZPJ821?

A: Yes. The 0.5W substitutes (ERJ-P14J821U, CRCW1210820RJNEA, RMCF1210JT820R) are electrically compatible. However, verify that your circuit's actual power dissipation does not exceed 0.5W. If the design requires the full 0.667W capability, use CRCW1210820RJNEAHP (0.75W) instead.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape (RMCF1210JT820R) is supplied in smaller quantities on cut segments. Both formats contain identical components; packaging choice depends on assembly equipment and order quantity requirements.

Q: Are all substitutes AEC-Q200 compliant?

A: Yes. All listed substitutes meet AEC-Q200 automotive qualification standards, ensuring equivalent reliability and performance in automotive applications.

Q: Why is ERJ-14YJ821U marked "Not For New Designs"?

A: This designation indicates the manufacturer has transitioned the part to end-of-life status. While currently in stock and functionally equivalent, new product designs should specify active-status alternatives to ensure long-term supply availability.

Q: Can I mix different manufacturers in the same assembly?

A: Yes. All substitutes meet identical electrical and mechanical specifications. Mixed sourcing from Rohm, Panasonic, Vishay Dale, and Stackpole Electronics is permissible provided all parts meet the specified tolerance, power rating, and AEC-Q200 requirements.

Q: What is the significance of the 1210 package designation?

A: 1210 is the imperial designation (0.126" × 0.098"); the metric equivalent is 3225 (3.2mm × 2.5mm). All listed parts use this identical package, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

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