CF14JT7R50 Equivalent & Substitute Parts

Part Overview

The CF14JT7R50 is a 7.5 Ohm ±5% 1/4W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and safety characteristics, designed for general-purpose applications requiring reliable performance across industrial temperature ranges. The part maintains Active product status with 1180 units in current inventory. Substitute parts are identified to address packaging format preferences, power rating requirements, or series modernization while maintaining core electrical specifications.

Substiute Parts

CF14JT7R50

Stackpole Electronics IncIn Stock: 1236CF14JT7R50 Datasheet

Current PartRFQ

CFM12JT7R50

Stackpole Electronics IncIn Stock: 2235CFM12JT7R50 Datasheet

UpgradeRFQ

CFM14JT7R50

Stackpole Electronics IncIn Stock: 3909CFM14JT7R50 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF14JT7R50 is determined by the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 7.5 Ohms
• Tolerance: ±5%
• Temperature coefficient: ±400ppm/°C
• Operating temperature range: -55°C to 155°C
• Composition: Carbon Film

Mechanical Parameters (Flexible):

• Package format: Axial (all candidates maintain axial configuration)
• Power rating: May be equal or higher than 0.25W
• Physical dimensions: May vary within axial form factor
• Series designation: CF or CFM series acceptable

Compliance Parameters (Must Match):

• RoHS3 Compliant
• REACH Unaffected
• ECCN: EAR99

The identified substitutes maintain all critical electrical and compliance parameters while offering variations in packaging format (Cut Tape vs. Tape & Reel) and power rating options.

Parameter Comparison

Engineering Selection Recommendations

CF14JT7R50 (Original Part): Suitable for applications requiring Tape & Reel packaging format with standard 1/4W power dissipation. Maintains CF series designation with Active product status and full ROHS3 compliance.

CFM12JT7R50 (Upgrade Option): Provides increased power rating of 0.5W while maintaining identical electrical specifications. Recommended for applications where thermal margin is required or where higher power dissipation is anticipated. Supplied in Cut Tape format. Higher current inventory (2198 units) supports supply chain continuity.

CFM14JT7R50 (Manufacturer Recommended): Represents the modernized CFM series equivalent with identical 1/4W power rating and electrical performance. Supplied in Cut Tape format with the highest current inventory (3838 units). Smaller physical dimensions (0.067" Dia x 0.130" L vs. 0.091" Dia x 0.236" L) may provide space optimization benefits in compact layouts. Recommended for new designs and long-term supply assurance.

All three parts maintain Active product status, ROHS3 compliance, and identical electrical characteristics (7.5 Ohms ±5%, ±400ppm/°C temperature coefficient, -55°C to 155°C operating range).

Frequently Asked Questions (FAQ)

Q: Can CFM12JT7R50 replace CF14JT7R50 in existing designs? A: Yes. The CFM12JT7R50 maintains identical resistance, tolerance, temperature coefficient, and operating temperature range. The higher 0.5W power rating provides additional thermal margin and is electrically compatible with 1/4W applications. Packaging format differs (Cut Tape vs. Tape & Reel), which may affect assembly processes.

Q: What is the primary difference between CF14JT7R50 and CFM14JT7R50? A: Both parts share identical electrical specifications (7.5 Ohms ±5%, 0.25W, ±400ppm/°C). The CFM14JT7R50 represents the modernized series with smaller physical dimensions (0.067" Dia x 0.130" L vs. 0.091" Dia x 0.236" L) and Cut Tape packaging. Electrical performance and compliance are equivalent.

Q: Are all three parts RoHS3 compliant? A: Yes. CF14JT7R50, CFM12JT7R50, and CFM14JT7R50 are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Does packaging format affect electrical performance? A: No. Tape & Reel (TR) and Cut Tape (CT) formats are packaging and delivery methods only. Electrical characteristics, performance, and reliability remain identical. Format selection depends on assembly equipment and production volume requirements.

Q: Can CFM14JT7R50 be used in space-constrained applications? A: The CFM14JT7R50 features smaller axial dimensions (0.067" Dia x 0.130" L) compared to CF14JT7R50 (0.091" Dia x 0.236" L), making it suitable for compact board layouts while maintaining identical electrical specifications.

Q: What is the temperature coefficient significance? A: All three parts share ±400ppm/°C temperature coefficient, indicating identical resistance stability across the -55°C to 155°C operating range. This parameter is critical for precision applications and thermal cycling environments.