Equivalent & Substitute Parts for ERJ-S14F4020U

Part Overview

The ERJ-S14F4020U is a 402 Ohms ±1% 0.5W thick film chip resistor in 1210 (3225 Metric) package manufactured by Panasonic Electronic Components. This component is rated for automotive applications under AEC-Q200 and features anti-sulfur protection. The part is currently in active production status with 927 pieces available in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design flexibility across multiple qualified suppliers is needed while maintaining identical electrical and mechanical performance.

Substiute Parts

ERJ-S14F4020U

Panasonic Electronic ComponentsIn Stock: 1011ERJ-S14F4020U Datasheet

Current PartRFQ

ERJ-14NF4020U

Panasonic Electronic ComponentsIn Stock: 13293ERJ-14NF4020U Datasheet

SimilarRFQ

CRCW1210402RFKEA

Vishay DaleIn Stock: 21403CRCW1210402RFKEA Datasheet

SimilarRFQ

RMCF1210FT402R

Stackpole Electronics IncIn Stock: 13432RMCF1210FT402R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F4020U is determined by strict equivalence across the following parameters:

• Resistance value: 402 Ohms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Package: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

All substitute parts listed meet these criteria without exception. Substitution is valid across manufacturers (Panasonic, Vishay Dale, Stackpole Electronics) provided all electrical and mechanical parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

All four parts are electrically and mechanically equivalent for direct substitution in applications requiring a 402 Ohm ±1% 0.5W 1210 package resistor with AEC-Q200 automotive qualification.

For new designs, select from parts with Active product status: ERJ-S14F4020U (Panasonic), CRCW1210402RFKEA (Vishay Dale), or RMCF1210FT402R (Stackpole Electronics). The ERJ-14NF4020U carries a "Not For New Designs" status and should be used only for legacy design maintenance or existing production continuity.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical electrical performance across the full operating temperature range of -55°C to 155°C. Physical height variation between CRCW1210402RFKEA (0.024" maximum) and other variants (0.028" maximum) is negligible for standard PCB assembly applications but should be verified for space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF4020U be used as a direct replacement for ERJ-S14F4020U?

A: Yes, ERJ-14NF4020U is electrically and mechanically equivalent. However, it carries a "Not For New Designs" status. Use this part only for existing production continuity or legacy design support.

Q: Are there any physical differences between substitute parts?

A: All parts use the 1210 (3225 Metric) package with identical length (0.126") and width (0.098"). Maximum seated height varies slightly: CRCW1210402RFKEA is 0.024" while ERJ-S14F4020U, ERJ-14NF4020U, and RMCF1210FT402R are 0.028". This difference is typically insignificant for standard PCB designs.

Q: Do all substitute parts meet automotive AEC-Q200 requirements?

A: Yes, all listed parts are AEC-Q200 qualified and suitable for automotive applications.

Q: Are all parts RoHS compliant?

A: Yes, all parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute offers the best inventory availability?

A: CRCW1210402RFKEA (Vishay Dale) has the highest inventory at 21391 pieces, followed by RMCF1210FT402R (Stackpole) at 13335 pieces.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, all parts are direct substitutes with identical electrical specifications, temperature coefficients, and operating ranges. No circuit redesign is required.