PWR263S-20-2000F Equivalent & Substitute Parts

Part Overview

The PWR263S-20-2000F is a 200 Ohms ±1% 20W thick film chip resistor in TO-263-3 D2PAK package manufactured by Bourns Inc. 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 inventory volumes. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement while maintaining circuit performance and compliance requirements.

Substiute Parts

PWR263S-20-2000F

Bourns Inc.In Stock: 845PWR263S-20-2000F Datasheet

Current PartRFQ

PWR263S-35-2000F

Bourns Inc.In Stock: 1515PWR263S-35-2000F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PWR263S-20-2000F is determined by the following critical parameters:

• Resistance value: 200 Ohms (must match exactly)
• Tolerance: ±1% (must match exactly)
• Package / Case: TO-263-3, D2PAK (must match exactly)
• Composition: Thick Film (must match exactly)
• Temperature Coefficient: ±100ppm/°C (must match exactly)
• Operating Temperature Range: -55°C ~ 155°C (must match exactly)
• Automotive Rating: AEC-Q200 (must match exactly)
• Features: Current Sense, Pulse Withstanding (must match exactly)

The PWR263S-35-2000F qualifies as a substitute because it maintains all critical electrical and mechanical parameters while offering increased power dissipation capability (35W versus 20W). This upgrade substitution is valid for applications where the higher power rating provides additional thermal margin without altering circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

Both PWR263S-20-2000F and PWR263S-35-2000F are active products with full AEC-Q200 automotive qualification and ROHS3 compliance. The PWR263S-35-2000F represents an upgrade path offering higher power dissipation capacity within the same physical footprint and electrical specification envelope. Selection between these parts depends on circuit power dissipation requirements. Both components maintain identical electrical performance characteristics and are suitable for current sensing applications in automotive environments.

Frequently Asked Questions (FAQ)

Q: Can PWR263S-35-2000F replace PWR263S-20-2000F in existing designs?

A: Yes. The PWR263S-35-2000F maintains all critical electrical parameters (resistance, tolerance, temperature coefficient, operating temperature range) and package specifications (TO-263-3 D2PAK) while providing increased power rating. This upgrade substitution is valid for direct replacement.

Q: Are there physical dimension differences between these parts?

A: Both parts share identical length and width dimensions (0.398" L x 0.409" W / 10.10mm x 10.40mm). The seated height differs slightly: PWR263S-20-2000F is 0.192" (4.88mm) maximum, while PWR263S-35-2000F is 0.177" (4.50mm) maximum. These variations remain within typical PCB assembly tolerances.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both PWR263S-20-2000F and PWR263S-35-2000F carry AEC-Q200 automotive qualification and are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What determines substitution eligibility for these resistors?

A: Substitution is based on matching resistance value (200 Ohms), tolerance (±1%), package type (TO-263-3 D2PAK), composition (Thick Film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and automotive ratings (AEC-Q200). Power rating differences are acceptable when the substitute provides equal or greater capacity.