CF12JA2K00 Equivalent & Substitute Parts

Part Overview

The CF12JA2K00 is a 2 kOhms ±5% 0.5W through-hole resistor manufactured by Stackpole Electronics Inc. This carbon film axial resistor features flame retardant coating and safety characteristics, designed for general-purpose applications requiring reliable resistance values across industrial and commercial temperature ranges. The part is currently active in production with full RoHS3 compliance. Substitute parts are identified to address packaging format availability, inventory levels, and application-specific requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

CF12JA2K00

Stackpole Electronics IncIn Stock: 1174CF12JA2K00 Datasheet

Current PartRFQ

CFM12JT2K00

Stackpole Electronics IncIn Stock: 21086CFM12JT2K00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between CF12JA2K00 and CFM12JT2K00 is valid based on the following criteria:

Electrical Parameters (Identical):

• Resistance value: 2 kOhms
• Tolerance: ±5%
• Power rating: 0.5W (1/2W)
• Composition: Carbon Film
• Temperature coefficient: 0 / -400ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Compatible):

• Package type: Axial (both parts use axial lead configuration)
• Number of terminations: 2
• Features: Flame retardant coating and safety characteristics maintained

Compliance Parameters (Identical):

• RoHS3 compliant
• REACH unaffected
• ECCN: EAR99
• HTSUS: 8533.10.0065

The primary difference between these parts is packaging format (Tape & Box versus Cut Tape) and physical dimensions, which do not affect electrical performance or functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both CF12JA2K00 and CFM12JT2K00 are active production parts from Stackpole Electronics Inc with full RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

Packaging Requirements: CF12JA2K00 is supplied in Tape & Box format, suitable for applications requiring bulk quantities with organized storage. CFM12JT2K00 is supplied in Cut Tape format, appropriate for automated assembly processes and applications with moderate volume requirements.

Inventory Availability: CFM12JT2K00 maintains higher inventory levels (21,020 pcs) compared to CF12JA2K00 (1,130 pcs), making it the preferred choice for applications with extended lead time considerations.

Physical Dimensions: The CFM12JT2K00 features reduced physical dimensions (0.091" diameter x 0.256" length) compared to CF12JA2K00 (0.106" diameter x 0.335" length). This dimensional difference may be relevant for space-constrained PCB layouts, though both maintain standard axial lead spacing for through-hole mounting.

Both parts satisfy identical electrical specifications and compliance requirements, ensuring functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can CF12JA2K00 and CFM12JT2K00 be used interchangeably in the same circuit?

A: Yes. Both parts have identical electrical specifications (2 kOhms ±5%, 0.5W power rating, carbon film composition, -55°C to 155°C operating range) and identical compliance certifications (RoHS3, REACH unaffected). They are functionally equivalent for circuit applications.

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

A: Tape & Box packaging supplies components on continuous tape wound on reels and packaged in boxes, suitable for bulk storage and manual assembly. Cut Tape packaging supplies components on tape cut into smaller segments, optimized for automated pick-and-place assembly equipment and applications with moderate volume requirements.

Q: Are the physical dimension differences between these parts significant?

A: The CFM12JT2K00 is physically smaller (0.091" diameter x 0.256" length) than the CF12JA2K00 (0.106" diameter x 0.335" length). This difference may be relevant for PCB layouts with space constraints. However, both maintain standard axial lead configuration compatible with through-hole mounting on standard PCB hole spacing.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CF12JA2K00 and CFM12JT2K00 are RoHS3 compliant, REACH unaffected, classified as EAR99, and share the same HTSUS code (8533.10.0065).

Q: Which part should be selected for new designs?

A: Selection should be based on packaging format requirements and inventory availability. CFM12JT2K00 is recommended for applications utilizing automated assembly processes and where higher inventory availability is advantageous. CF12JA2K00 is appropriate for applications requiring Tape & Box packaging format.