CB25JB5R10 Equivalent & Substitute Parts

Part Overview

The CB25JB5R10 is a 5.1 Ohm, 25W axial wirewound resistor manufactured by Stackpole Electronics Inc. This component is designed for through-hole applications requiring flame-proof and moisture-resistant construction with safety-rated performance. The part is currently listed as obsolete, making identification of compatible substitutes essential for ongoing system maintenance and repair operations.

Substiute Parts

CB25JB5R10

Stackpole Electronics IncIn Stock: 1037CB25JB5R10 Datasheet

Current PartRFQ

WCB25JB5R10

Stackpole Electronics IncIn Stock: 1088WCB25JB5R10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The WCB25JB5R10 qualifies as a direct substitute for the CB25JB5R10 based on the following critical parameters:

• Identical resistance value: 5.1 Ohms
• Identical tolerance: ±5%
• Identical power rating: 25W
• Identical composition: Wirewound
• Identical package type: Axial
• Identical operating temperature range: -55°C to 275°C
• Identical features: Flame Proof, Moisture Resistant, Safety
• Identical RoHS compliance: ROHS3 Compliant
• Identical physical dimensions: 2.500" L x 0.500" W (64.60mm x 12.70mm)
• Identical number of terminations: 2

The WCB25JB5R10 is manufactured by the same supplier (Stackpole Electronics Inc) and maintains full electrical and mechanical compatibility with the obsolete CB25JB5R10.

Parameter Comparison

Engineering Selection Recommendations

The WCB25JB5R10 is the appropriate substitute for the obsolete CB25JB5R10. Both parts maintain identical electrical specifications, mechanical dimensions, and regulatory compliance certifications. The substitute part is currently in active production status with confirmed inventory availability, ensuring supply chain continuity for replacement and repair applications.

The WCB25JB5R10 demonstrates improved temperature coefficient performance (±50ppm/°C versus ±200ppm/°C), which represents enhanced stability characteristics while maintaining full backward compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the WCB25JB5R10 be used as a direct replacement for the CB25JB5R10?

A: Yes. Both parts share identical resistance values, tolerance, power ratings, package types, and operating temperature ranges. The WCB25JB5R10 is electrically and mechanically compatible with the CB25JB5R10 in all through-hole axial applications.

Q: What is the primary difference between these two parts?

A: The WCB25JB5R10 features a superior temperature coefficient of ±50ppm/°C compared to the CB25JB5R10 at ±200ppm/°C. Additionally, the WCB25JB5R10 is in active production status, whereas the CB25JB5R10 is obsolete.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 2.500" L x 0.500" W (64.60mm x 12.70mm) and feature identical axial package configurations with two terminations.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the CB25JB5R10 and WCB25JB5R10 are ROHS3 compliant and REACH unaffected, meeting identical environmental and regulatory standards.

Q: What packaging options are available for the substitute part?

A: The WCB25JB5R10 is supplied in bulk packaging, whereas the CB25JB5R10 was supplied with standard packaging. Bulk packaging does not affect component performance or compatibility.