WRF1JB22R0 Equivalent & Substitute Parts

Part Overview

The WRF1JB22R0 is a 22 Ohm, 1W axial wirewound resistor manufactured by Stackpole Electronics Inc. This component features flame-proof and moisture-resistant construction with safety-rated design, suitable for through-hole applications requiring reliable power dissipation in harsh environments. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs.

Substiute Parts

WRF1JB22R0

Stackpole Electronics IncIn Stock: 772WRF1JB22R0 Datasheet

Current PartRFQ

CB2JBR270

Stackpole Electronics IncIn Stock: 804CB2JBR270 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CB2JBR270 is listed as a substitute for the WRF1JB22R0. However, this substitution is not valid based on electrical parameters. The CB2JBR270 has a resistance value of 270 mOhms (0.27 Ohms), which differs fundamentally from the 22 Ohm specification of the main part. Resistance values are not interchangeable in circuit design, and a 270 mOhm resistor cannot functionally replace a 22 Ohm resistor in any application context.

For valid substitution of the WRF1JB22R0, alternative parts must meet the following criteria:

• Resistance: 22 Ohms ±5%
• Power Rating: 1W minimum
• Composition: Wirewound
• Package: Axial
• Operating Temperature: -55°C to 200°C minimum
• Features: Flame Proof, Moisture Resistant, Safety rated

Parameter Comparison

Engineering Selection Recommendations

The CB2JBR270 cannot serve as a functional substitute for the WRF1JB22R0 due to the fundamental mismatch in resistance value. While both components share compatible packaging, composition, and compliance characteristics, the 22 Ohm specification is a critical electrical parameter that cannot be compromised.

For applications currently using the WRF1JB22R0, sourcing must focus on locating active-production 22 Ohm, 1W axial wirewound resistors from Stackpole Electronics Inc or equivalent manufacturers with matching electrical and thermal specifications. The obsolete status of the WRF1JB22R0 requires proactive component qualification and inventory planning.

Frequently Asked Questions (FAQ)

Q: Can the CB2JBR270 replace the WRF1JB22R0 in my circuit?

A: No. The CB2JBR270 has a resistance of 270 mOhms, while the WRF1JB22R0 is rated at 22 Ohms. These values are not interchangeable. Using an incorrect resistance value will cause circuit malfunction.

Q: What makes a resistor a valid substitute for the WRF1JB22R0?

A: A valid substitute must have 22 Ohms ±5% resistance, 1W minimum power rating, wirewound composition, axial package, and operating temperature range of at least -55°C to 200°C. All electrical and mechanical parameters must match the original specification.

Q: Why is the WRF1JB22R0 listed as obsolete?

A: The WRF1JB22R0 is no longer in active production by Stackpole Electronics Inc. Existing inventory may be available through authorized distributors, but long-term availability cannot be guaranteed.

Q: Are there compliance differences between the WRF1JB22R0 and CB2JBR270?

A: Both components are ROHS3 compliant and REACH unaffected. Compliance status is not a differentiating factor for substitution eligibility.

Q: What should I do if I cannot source the WRF1JB22R0?

A: Contact Stackpole Electronics Inc or authorized distributors to identify active-production 22 Ohm, 1W axial wirewound resistors with equivalent thermal and safety ratings. Verify all electrical parameters before design implementation.