CB7JB68R0 Equivalent & Substitute Parts

Part Overview

The CB7JB68R0 is a 68 Ohm, 5% tolerance, 7W axial wirewound resistor manufactured by Stackpole Electronics Inc. This through-hole component features flame-proof and moisture-resistant construction with safety-rated design, suitable for applications requiring robust thermal and environmental performance. The part is currently active in production with 760 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when procurement requirements necessitate alternative manufacturers.

Substiute Parts

CB7JB68R0

Stackpole Electronics IncIn Stock: 850CB7JB68R0 Datasheet

Current PartRFQ

PNP7WVJT-91-68R

YAGEOIn Stock: 2174PNP7WVJT-91-68R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB7JB68R0 is determined by the following critical parameters:

• Resistance value: 68 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 7W (exact match required)
• Composition: Wirewound (exact match required)
• Package: Axial through-hole (exact match required)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

The substitute part PNP7WVJT-91-68R from YAGEO meets all mandatory electrical and mechanical parameters. Both parts are wirewound axial resistors with identical resistance, tolerance, and power specifications. Both maintain ROHS3 compliance and are rated for safety applications.

Parameter Comparison

Engineering Selection Recommendations

Both CB7JB68R0 and PNP7WVJT-91-68R are active production parts with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

The CB7JB68R0 operates across a wider temperature range (-55°C to 275°C) compared to the PNP7WVJT-91-68R (-40°C to 200°C). Selection between these parts should be based on the specific operating temperature requirements of the application. The CB7JB68R0 is suitable for applications requiring extended low-temperature or high-temperature performance.

Physical dimensions differ between the two parts. The CB7JB68R0 is larger (9.50mm x 35.00mm) with a square cross-section, while the PNP7WVJT-91-68R is smaller (7.50mm x 25.00mm) with a cylindrical cross-section. PCB layout and thermal management considerations may influence part selection based on available board space and heat dissipation requirements.

Frequently Asked Questions (FAQ)

Q: Can PNP7WVJT-91-68R be used as a direct replacement for CB7JB68R0?

A: Yes, for applications operating within the -40°C to 200°C temperature range. Both parts share identical electrical specifications (68 Ohms, ±5%, 7W) and wirewound axial construction. If your application requires operation below -40°C or above 200°C, the CB7JB68R0 is the appropriate choice due to its extended temperature range.

Q: Are there physical compatibility concerns when substituting these parts?

A: Yes. The CB7JB68R0 (9.50mm x 35.00mm square) and PNP7WVJT-91-68R (7.50mm x 25.00mm cylindrical) have different dimensions. Verify PCB footprint compatibility and thermal clearances before substitution. The smaller PNP7WVJT-91-68R may fit in tighter spaces but requires confirmation of hole spacing and lead diameter compatibility.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both CB7JB68R0 and PNP7WVJT-91-68R are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What is the difference between the flame-proof and flame-retardant features?

A: CB7JB68R0 features flame-proof construction, while PNP7WVJT-91-68R features flame-retardant coating. Both are safety-rated wirewound resistors. Application-specific safety requirements should determine which feature set is appropriate for your design.