CB7JB100R Equivalent & Substitute Parts

Part Overview

The CB7JB100R is a 100 Ohms ±5% 7W axial wirewound resistor manufactured by Stackpole Electronics Inc. This through-hole component features flame-proof and moisture-resistant construction with safety certification. The part is currently active in production with 755 units in stock. Equivalent parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits cross-manufacturer sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

CB7JB100R

Stackpole Electronics IncIn Stock: 809CB7JB100R Datasheet

Current PartRFQ

SQPW7100RJ

TE Connectivity Passive ProductIn Stock: 3984SQPW7100RJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB7JB100R is determined by the following critical parameters:

• Resistance value: 100 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)
• Features: Flame proof and moisture resistant construction (exact match required)
• Compliance: ROHS3 compliant (exact match required)
• Termination count: 2 (exact match required)

The SQPW7100RJ from TE Connectivity Passive Product meets all critical substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the CB7JB100R and SQPW7100RJ are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Availability requirements: SQPW7100RJ offers significantly higher inventory (3921 units vs. 755 units)
• Temperature margin: CB7JB100R supports operation to 275°C; SQPW7100RJ supports to 250°C
• Temperature coefficient stability: CB7JB100R provides ±200ppm/°C; SQPW7100RJ provides ±300ppm/°C
• Physical dimensions: CB7JB100R measures 0.374" Square x 1.378" L; SQPW7100RJ measures 0.394" x 0.354" Rectangular x 1.378" L

Both parts satisfy identical electrical specifications and regulatory requirements for 100 Ohm 7W axial wirewound resistor applications.

Frequently Asked Questions (FAQ)

Q: Can SQPW7100RJ replace CB7JB100R in existing designs?

A: Yes. Both parts share identical resistance (100 Ohms), tolerance (±5%), power rating (7W), composition (wirewound), package type (axial), and safety features (flame proof, moisture resistant). Physical dimensions differ slightly; verify PCB layout clearance before substitution.

Q: What is the difference in operating temperature range?

A: CB7JB100R operates from -55°C to 275°C. SQPW7100RJ operates from -55°C to 250°C. For applications requiring operation above 250°C, CB7JB100R is the appropriate selection.

Q: How do temperature coefficients affect circuit performance?

A: CB7JB100R exhibits ±200ppm/°C; SQPW7100RJ exhibits ±300ppm/°C. In circuits with tight tolerance requirements across temperature ranges, CB7JB100R provides superior stability. For general applications, both coefficients are acceptable.

Q: Are both parts RoHS compliant?

A: Yes. Both CB7JB100R and SQPW7100RJ are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What are the physical dimension differences?

A: CB7JB100R has a square cross-section (0.374" x 1.378" L). SQPW7100RJ has a rectangular cross-section (0.394" x 0.354" x 1.378" L). Verify mounting hole spacing and clearance in your PCB design before substitution.