PF2205-22RF1 Equivalent & Substitute Parts

Part Overview

The PF2205-22RF1 is a 22 Ohm, 1% tolerance, 50W through-hole resistor in TO-220-2 package manufactured by Riedon. This thin film current sense resistor is designed for high-power applications requiring precision and pulse withstanding capability. The part is classified as "Not For New Designs," making identification of suitable alternatives essential for ongoing production and maintenance applications.

Substiute Parts

PF2205-22RF1

RiedonIn Stock: 758PF2205-22RF1 Datasheet

Current PartRFQ

PWR221T-50-22R0F

Bourns Inc.In Stock: 1206PWR221T-50-22R0F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PF2205-22RF1 is determined by strict equivalence across the following critical parameters:

• Resistance value: 22 Ohms
• Tolerance: ±1%
• Power rating: 50W
• Package: TO-220-2
• Composition: Thin Film
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C to 155°C
• Regulatory compliance: ROHS3 Compliant, ECCN EAR99

The PWR221T-50-22R0F from Bourns Inc. meets all specified electrical and mechanical parameters, making it a direct functional equivalent for the PF2205-22RF1.

Parameter Comparison

Engineering Selection Recommendations

The PWR221T-50-22R0F is the qualified substitute for the PF2205-22RF1. Both parts are ROHS3 compliant and carry identical ECCN classification (EAR99), ensuring regulatory alignment. The PWR221T-50-22R0F maintains active product status, providing supply continuity and manufacturer support for applications currently using the PF2205-22RF1. Electrical and thermal characteristics are equivalent across all specified parameters, supporting direct replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the PWR221T-50-22R0F replace the PF2205-22RF1 in existing applications?

A: Yes. Both parts share identical resistance (22 Ohms), tolerance (±1%), power rating (50W), package (TO-220-2), and operating temperature range (-55°C to 155°C). Electrical performance and thermal characteristics are equivalent.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant and classified under ECCN EAR99. Regulatory requirements are identical.

Q: What is the significance of the "Not For New Designs" status on the PF2205-22RF1?

A: This designation indicates the PF2205-22RF1 is obsolete or end-of-life. The PWR221T-50-22R0F, with active product status, is the recommended alternative for new applications and ongoing production.

Q: Are the physical dimensions identical?

A: Both parts use the TO-220-2 package. Mechanical compatibility is assured for PCB mounting and thermal management applications.

Q: What is the difference in packaging between these parts?

A: The PF2205-22RF1 is supplied in standard packaging, while the PWR221T-50-22R0F is supplied in Tube packaging. Both are suitable for production assembly processes.