CFM12JT18R0 Equivalent & Substitute Parts

Part Overview

The CFM12JT18R0 is an 18 Ohm, ±5% tolerance, 0.5W (1/2W) 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 fixed resistance values in through-hole configurations. The part maintains Active product status with 2705 units currently in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package type.

Substiute Parts

CFM12JT18R0

Stackpole Electronics IncIn Stock: 2777CFM12JT18R0 Datasheet

Current PartRFQ

CF12JT18R0

Stackpole Electronics IncIn Stock: 4014CF12JT18R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CFM12JT18R0 is determined by strict equivalence across the following critical parameters:

• Resistance value: 18 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Carbon Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: 0 / -400ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

The CF12JT18R0 from Stackpole Electronics Inc meets all substitution criteria. Physical dimensions vary slightly (0.106" Dia x 0.335" L versus 0.091" Dia x 0.256" L), which is acceptable within axial resistor package tolerances and does not affect electrical performance or circuit board layout compatibility for standard through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

Both CFM12JT18R0 and CF12JT18R0 are Active product status components from Stackpole Electronics Inc with identical electrical specifications and regulatory compliance profiles. Selection between these parts should be based on:

• Availability: CF12JT18R0 has higher current inventory (3975 units versus 2705 units)
• Physical dimensions: CF12JT18R0 has slightly larger dimensions (0.106" Dia x 0.335" L) compared to CFM12JT18R0 (0.091" Dia x 0.256" L); verify board layout clearance if space constraints exist
• Series designation: CFM12JT18R0 belongs to the CFM series; CF12JT18R0 belongs to the CF series
• Both parts maintain ROHS3 compliance and REACH Unaffected status, suitable for regulated applications

Frequently Asked Questions (FAQ)

Q: Can CF12JT18R0 be used as a direct replacement for CFM12JT18R0?

A: Yes. Both parts share identical electrical specifications (18 Ohms, ±5%, 0.5W, carbon film composition, -55°C ~ 155°C operating range) and regulatory compliance. Physical dimensions differ slightly but remain within acceptable axial resistor package tolerances for standard through-hole circuit board applications.

Q: What are the key differences between these two parts?

A: The primary differences are physical dimensions and inventory availability. CF12JT18R0 measures 0.106" Dia x 0.335" L, while CFM12JT18R0 measures 0.091" Dia x 0.256" L. CF12JT18R0 has higher current stock levels. Electrical performance and compliance certifications are identical.

Q: Are there any compatibility concerns with board layout?

A: The larger dimensions of CF12JT18R0 should be verified against circuit board hole spacing and component clearance requirements. Standard through-hole resistor spacing typically accommodates both sizes without modification.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both CFM12JT18R0 and CF12JT18R0 are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory standards for restricted substances and environmental compliance.

Q: What determines substitution eligibility for these resistors?

A: Substitution is based on exact equivalence of resistance value (18 Ohms), tolerance (±5%), power rating (0.5W), composition (carbon film), package type (axial), temperature characteristics, and regulatory compliance status. Any deviation in these parameters disqualifies a part from substitution.