CF12JT7R50 Equivalent & Substitute Parts

Part Overview

The CF12JT7R50 is a 7.5 Ohm ±5% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and safety characteristics, designed for general-purpose electronic applications requiring reliable resistance in compact form factors. The part is currently in active production status with 1041 pieces available in new original inventory. Substitute parts are necessary when packaging requirements differ, such as when cut tape (CT) packaging is preferred over tape & reel (TR) for specific assembly processes, or when alternative physical dimensions better suit board layout constraints.

Substiute Parts

CF12JT7R50

Stackpole Electronics IncIn Stock: 1148CF12JT7R50 Datasheet

Current PartRFQ

CFM12JT7R50

Stackpole Electronics IncIn Stock: 2235CFM12JT7R50 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between CF12JT7R50 and CFM12JT7R50 is valid based on the following electrical and mechanical parameters that remain constant:

• Resistance value: 7.5 Ohms (identical)
• Tolerance: ±5% (identical)
• Power rating: 0.5W / 1/2W (identical)
• Composition: Carbon Film (identical)
• Temperature coefficient: ±400ppm/°C (identical)
• Operating temperature range: -55°C to 155°C (identical)
• Package configuration: Axial through-hole (identical)
• Compliance certifications: ROHS3 Compliant, REACH Unaffected (identical)

The primary difference between these parts is packaging format (Tape & Reel versus Cut Tape) and physical dimensions. Both parts maintain identical electrical performance and thermal characteristics, making them functionally interchangeable in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both CF12JT7R50 and CFM12JT7R50 are active production parts from Stackpole Electronics Inc with full ROHS3 compliance and REACH unaffected status, making them suitable for regulated applications. Selection between these parts should be based on assembly process requirements and board layout constraints rather than electrical performance, as all functional parameters are identical.

CF12JT7R50 in Tape & Reel packaging is appropriate for high-volume automated assembly operations utilizing reel-fed pick-and-place equipment. CFM12JT7R50 in Cut Tape packaging is suitable for lower-volume production runs, manual assembly processes, or applications where individual component handling is preferred. The CFM12JT7R50 variant offers higher current inventory availability at 2198 pieces compared to 1041 pieces for the CF12JT7R50.

The dimensional difference between parts (CF12JT7R50: 2.70mm diameter x 8.50mm length versus CFM12JT7R50: 2.30mm diameter x 6.50mm length) may impact board layout considerations in space-constrained applications, with the CFM12JT7R50 providing a more compact footprint.

Frequently Asked Questions (FAQ)

Q: Are CF12JT7R50 and CFM12JT7R50 electrically identical?

A: Yes. Both parts have identical resistance (7.5 Ohms), tolerance (±5%), power rating (0.5W), temperature coefficient (±400ppm/°C), and operating temperature range (-55°C to 155°C). They are functionally equivalent in all circuit applications.

Q: What is the primary difference between these two part numbers?

A: The primary differences are packaging format and physical dimensions. CF12JT7R50 is supplied in Tape & Reel format with dimensions of 2.70mm diameter x 8.50mm length. CFM12JT7R50 is supplied in Cut Tape format with dimensions of 2.30mm diameter x 6.50mm length.

Q: Which packaging format should I select for my application?

A: Tape & Reel (CF12JT7R50) is standard for automated high-volume assembly lines. Cut Tape (CFM12JT7R50) is suitable for manual assembly, prototyping, or lower-volume production where individual component access is required.

Q: Will the dimensional difference affect my PCB design?

A: The CFM12JT7R50 has a smaller diameter (2.30mm vs 2.70mm) and shorter length (6.50mm vs 8.50mm). If your PCB layout is space-constrained, the CFM12JT7R50 provides a more compact footprint. However, both parts use standard axial through-hole mounting and will fit standard 0.1" pitch hole spacing.

Q: Are both parts compliant with current regulations?

A: Yes. Both CF12JT7R50 and CFM12JT7R50 are ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations for electronic components.

Q: Can I substitute one part for the other mid-production?

A: Yes, from an electrical and functional standpoint. However, packaging format differences may require adjustments to assembly equipment or processes. Verify that your assembly line can accommodate the different packaging format before making substitutions.