CF12JT3M90 Equivalent & Substitute Parts

Part Overview

The CF12JT3M90 is a 3.9 MOhms ±5% 0.5W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and safety characteristics, designed for applications requiring high-resistance values in compact axial packages. The part is currently in active production status with 1021 units available in stock. Substitute parts are identified when packaging or supply chain requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

CF12JT3M90

Stackpole Electronics IncIn Stock: 1111CF12JT3M90 Datasheet

Current PartRFQ

CF12JA3M90

Stackpole Electronics IncIn Stock: 4949CF12JA3M90 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CF12JT3M90 is determined by electrical and mechanical parameter equivalence within the CF series carbon film resistor family. The primary substitution criterion is packaging format. The CF12JT3M90 is supplied in Tape & Reel (TR) packaging, while the CF12JA3M90 is supplied in Cut Tape (CT) packaging. Both parts maintain identical electrical specifications: 3.9 MOhms resistance, ±5% tolerance, 0.5W power rating, carbon film composition, and axial package configuration. The temperature coefficient, operating temperature range, physical dimensions, and compliance certifications (ROHS3, REACH Unaffected) are identical across both parts. Substitution is valid when packaging format flexibility is available in the application or supply chain.

Parameter Comparison

Engineering Selection Recommendations

Both CF12JT3M90 and CF12JA3M90 are active production parts from Stackpole Electronics Inc with full ROHS3 compliance and REACH Unaffected status. Selection between these parts is determined by packaging requirements and supply chain logistics rather than electrical performance. The CF12JT3M90 in Tape & Reel format is suitable for high-volume automated assembly processes. The CF12JA3M90 in Cut Tape format is suitable for lower-volume applications or manual assembly workflows. Both parts satisfy identical electrical specifications, thermal characteristics, and regulatory compliance requirements. Inventory availability should be evaluated based on project timeline and volume requirements.

Frequently Asked Questions (FAQ)

Q: Are CF12JT3M90 and CF12JA3M90 electrically interchangeable?

A: Yes. Both parts have identical resistance values (3.9 MOhms), tolerance (±5%), power rating (0.5W), temperature coefficient (0 / -1500ppm/°C), and operating temperature range (-55°C to 155°C). Electrical performance is equivalent.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, optimized for automated pick-and-place assembly. Cut Tape (CT) packaging supplies components on tape segments, suitable for manual assembly or lower-volume production runs.

Q: Can I use CF12JA3M90 as a direct replacement for CF12JT3M90 on a PCB?

A: Yes. Both parts have identical axial package dimensions (0.106" Dia x 0.335" L / 2.70mm x 8.50mm) and two terminations. PCB footprints and lead spacing are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both CF12JT3M90 and CF12JA3M90 are ROHS3 Compliant and REACH Unaffected.

Q: Which part should I select for high-volume manufacturing?

A: CF12JT3M90 in Tape & Reel format is optimized for high-volume automated assembly processes with pick-and-place equipment.

Q: Which part should I select for prototyping or low-volume applications?

A: CF12JA3M90 in Cut Tape format is suitable for prototyping, manual assembly, or low-volume production runs.