PWR263S-20-15R0F Equivalent & Substitute Parts

Part Overview

The PWR263S-20-15R0F is a 15 Ohm, 1% tolerance, 20W thick film chip resistor manufactured by Bourns Inc. in a TO-263-3 D2PAK package. This component is designed for current sensing applications in automotive environments and meets AEC-Q200 qualification standards. The part is actively produced and available in high volume inventory. Substitute parts are identified to address packaging format preferences and power rating requirements while maintaining electrical and mechanical compatibility within the PWR263S series.

Substiute Parts

PWR263S-20-15R0F

Bourns Inc.In Stock: 1286PWR263S-20-15R0F Datasheet

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PWR263S-20-15R0FE

Bourns Inc.In Stock: 1512PWR263S-20-15R0FE Datasheet

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PWR263S-35-15R0F

Bourns Inc.In Stock: 1535PWR263S-35-15R0F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PWR263S-20-15R0F are identified based on the following criteria:

Packaging Format Substitution: PWR263S-20-15R0FE maintains identical electrical specifications (15 Ohms, ±1%, 20W) and mechanical dimensions but is supplied in Tape & Reel (TR) packaging instead of Tube packaging. This substitution is valid for applications where reel format is preferred for automated assembly processes.

Power Rating Upgrade: PWR263S-35-15R0F provides the same resistance value (15 Ohms) and tolerance (±1%) with an increased power rating of 35W instead of 20W, while maintaining the same TO-263-3 D2PAK package footprint. This part is suitable for applications requiring higher thermal dissipation capability. The height dimension differs slightly (0.177" vs 0.192"), remaining within the D2PAK package specification.

All substitute parts maintain:

• Identical resistance and tolerance specifications
• Same package family (TO-263-3, D2PAK)
• Equivalent thermal and electrical performance characteristics
• AEC-Q200 automotive qualification
• ROHS3 compliance and MSL 1 rating

Parameter Comparison

Engineering Selection Recommendations

PWR263S-20-15R0FE Selection: Choose this part when your manufacturing process requires Tape & Reel packaging for automated pick-and-place assembly. Electrical and thermal performance are identical to the main part. All compliance certifications and automotive qualifications remain equivalent.

PWR263S-35-15R0F Selection: Choose this part when circuit design requires higher power dissipation capability or when thermal margin is a design consideration. The 35W rating provides increased headroom over the 20W specification while maintaining the same footprint and electrical characteristics. This part is suitable for high-current sensing applications or environments with elevated ambient temperatures.

All substitute parts carry active product status and maintain full AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating. Selection between these options depends on packaging format requirements and thermal design margins rather than electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can PWR263S-20-15R0FE be used as a direct replacement for PWR263S-20-15R0F?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: Tube versus Tape & Reel. Selection depends on your assembly process requirements.

Q: Is PWR263S-35-15R0F a direct substitute for PWR263S-20-15R0F?

A: Yes, with the consideration that PWR263S-35-15R0F provides higher power rating (35W vs 20W). This part is suitable for applications where the original 20W rating is adequate but additional thermal margin is desired. The footprint and electrical resistance remain identical.

Q: What is the difference in physical dimensions between the 20W and 35W versions?

A: Both parts use the same TO-263-3 D2PAK package with identical length (0.398") and width (0.409"). The seated height differs slightly: PWR263S-20-15R0F is 0.192" maximum, while PWR263S-35-15R0F is 0.177" maximum. Both dimensions fall within standard D2PAK specifications.

Q: Are all three parts AEC-Q200 qualified?

A: Yes. PWR263S-20-15R0F, PWR263S-20-15R0FE, and PWR263S-35-15R0F all carry AEC-Q200 automotive qualification and are suitable for automotive applications.

Q: What packaging format should I specify for high-volume production?

A: PWR263S-20-15R0FE in Tape & Reel format is optimized for automated assembly. PWR263S-20-15R0F in Tube format is suitable for manual assembly or lower-volume applications.

Q: Do all substitute parts have the same moisture sensitivity rating?

A: Yes. All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity concerns for storage and handling.