CF14JT4R30 Equivalent & Substitute Parts

Part Overview

The CF14JT4R30 is a 4.3 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 electronic applications requiring precision resistance values in compact form factors. The part maintains Active product status with 960 units in current inventory. Substitute parts are necessary when packaging requirements differ, power dissipation demands increase, or alternative sourcing becomes advantageous while maintaining electrical equivalence.

Substiute Parts

CF14JT4R30

Stackpole Electronics IncIn Stock: 1064CF14JT4R30 Datasheet

Current PartRFQ

CFM12JT4R30

Stackpole Electronics IncIn Stock: 1106CFM12JT4R30 Datasheet

UpgradeRFQ

CFM14JT4R30

Stackpole Electronics IncIn Stock: 5809CFM14JT4R30 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF14JT4R30 is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value must be 4.3 Ohms
• Tolerance must be ±5%
• Temperature coefficient must be ±400ppm/°C
• Operating temperature range must be -55°C to 155°C

Mechanical & Packaging Considerations:

• Package type must be Axial
• Composition must be Carbon Film
• Features must include Flame Retardant Coating and Safety characteristics

Compliance & Status:

• Product status must be Active
• RoHS3 compliance required
• REACH Unaffected status required

Substitute parts may differ in power rating and physical dimensions while maintaining full electrical and functional equivalence. The CFM12JT4R30 provides upgraded power handling at 0.5W (1/2W), suitable for applications requiring higher thermal dissipation. The CFM14JT4R30 offers identical electrical specifications with alternative packaging format (Cut Tape vs. Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and full ROHS3 compliance with REACH Unaffected designation, ensuring regulatory compatibility across applications. Selection between CF14JT4R30, CFM12JT4R30, and CFM14JT4R30 depends on specific application requirements:

CF14JT4R30 (Original Specification): Select when Tape & Reel packaging is required for automated assembly processes and 0.25W power dissipation is sufficient for the circuit design.

CFM12JT4R30 (Upgrade Option): Select when applications require enhanced thermal performance with 0.5W power rating while maintaining identical electrical characteristics. Suitable for circuits with higher current demands or elevated ambient temperatures. Available in Cut Tape packaging.

CFM14JT4R30 (Manufacturer Recommended): Select as the preferred alternative offering identical 0.25W specifications with Cut Tape packaging format. Highest inventory availability (5699 units) ensures supply continuity. Compact physical dimensions (0.067" Dia x 0.130" L) optimize PCB space utilization compared to CF14JT4R30 (0.091" Dia x 0.236" L).

Frequently Asked Questions (FAQ)

Q: Can CFM12JT4R30 directly replace CF14JT4R30 in existing designs?

A: Yes, with circuit validation. The CFM12JT4R30 maintains identical electrical specifications (4.3 Ohms ±5%, ±400ppm/°C, -55°C to 155°C). The increased power rating (0.5W vs. 0.25W) provides additional thermal margin and does not create compatibility issues. Physical dimensions differ slightly (0.091" Dia x 0.256" L vs. 0.091" Dia x 0.236" L), requiring PCB layout verification for space-constrained applications.

Q: What is the difference between CF14JT4R30 and CFM14JT4R30?

A: Both parts are electrically identical 4.3 Ohm ±5% 1/4W carbon film resistors with matching temperature coefficients and operating ranges. Primary differences are packaging format (Tape & Reel vs. Cut Tape) and physical dimensions. CFM14JT4R30 features a more compact form factor (0.067" Dia x 0.130" L) compared to CF14JT4R30 (0.091" Dia x 0.236" L). CFM14JT4R30 offers significantly higher inventory availability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. CF14JT4R30, CFM12JT4R30, and CFM14JT4R30 are all ROHS3 Compliant with REACH Unaffected status, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: Which substitute part should be selected for new designs?

A: CFM14JT4R30 is recommended for new designs based on Active product status, ROHS3 compliance, superior inventory availability (5699 units), and compact physical dimensions optimizing PCB layout efficiency.

Q: Can these parts be used interchangeably in automated assembly?

A: CF14JT4R30 and CFM14JT4R30 require different handling due to packaging format differences (Tape & Reel vs. Cut Tape). Assembly equipment must be configured for the specific packaging type. CFM12JT4R30 uses Cut Tape packaging, requiring compatible feeder systems. Verify equipment compatibility before implementing substitutions in production environments.