CF12JA5K10 Equivalent & Substitute Parts

Part Overview

The CF12JA5K10 is a 5.1 kOhms ±5% 0.5W through-hole axial 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 is currently active in production with 773 units in stock. Substitute parts are identified to address packaging format preferences, inventory availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

CF12JA5K10

Stackpole Electronics IncIn Stock: 788CF12JA5K10 Datasheet

Current PartRFQ

CFM12JT5K10

Stackpole Electronics IncIn Stock: 28898CFM12JT5K10 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between CF12JA5K10 and CFM12JT5K10 is valid based on the following criteria:

Electrical Parameters (Identical):

• Resistance value: 5.1 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)
• Number of terminations: 2 (both parts)
• Flame retardant coating and safety features present in both

Regulatory Compliance (Identical):

• RoHS3 Compliant
• REACH Unaffected
• ECCN: EAR99
• HTSUS: 8533.10.0065

The primary difference between these parts is the packaging format: CF12JA5K10 is supplied in Tape & Box (TB) format, while CFM12JT5K10 is supplied in Cut Tape (CT) format. Physical dimensions vary slightly due to manufacturing tolerances within the axial resistor category.

Parameter Comparison

Engineering Selection Recommendations

Both CF12JA5K10 and CFM12JT5K10 meet identical electrical and regulatory requirements for applications requiring a 5.1 kOhms ±5% carbon film resistor rated at 0.5W. Selection between these parts should be based on:

Packaging Requirements: CF12JA5K10 in Tape & Box format is suitable for applications requiring boxed component delivery. CFM12JT5K10 in Cut Tape format is appropriate for automated assembly processes or applications where individual tape-cut quantities are preferred.

Inventory Availability: CFM12JT5K10 maintains significantly higher stock levels (28879 units) compared to CF12JA5K10 (773 units), making it the preferred choice for high-volume production or time-sensitive procurement.

Compliance Status: Both parts are ROHS3 compliant and REACH unaffected, suitable for applications subject to environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can CF12JA5K10 and CFM12JT5K10 be used interchangeably in circuit designs?

A: Yes. Both parts have identical electrical specifications (5.1 kOhms ±5%, 0.5W power rating, carbon film composition, temperature coefficient, and operating temperature range). They are electrically and functionally equivalent for all circuit applications.

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

A: Tape & Box (TB) packaging supplies components in a reel within a protective box, suitable for manual handling and smaller quantity orders. Cut Tape (CT) packaging provides components cut from the reel in specified quantities, optimized for automated pick-and-place assembly systems.

Q: Are there physical dimension differences between these parts?

A: Minor dimensional variations exist. CF12JA5K10 measures 0.106" diameter x 0.335" length (2.70mm x 8.50mm), while CFM12JT5K10 measures 0.091" diameter x 0.256" length (2.30mm x 6.50mm). Both are axial through-hole components compatible with standard PCB hole spacing for 0.5W resistors.

Q: Which part should be selected for high-volume production?

A: CFM12JT5K10 is recommended for high-volume production due to superior inventory availability (28879 units) and Cut Tape packaging format compatibility with automated assembly equipment.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both CF12JA5K10 and CFM12JT5K10 are ROHS3 compliant, REACH unaffected, and share identical ECCN (EAR99) and HTSUS (8533.10.0065) classifications.