Equivalent & Substitute Parts for 5KP12CA-B

Part Overview

The 5KP12CA-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component features a 12V reverse standoff voltage with a 19.9V maximum clamping voltage and 256.3A peak pulse current capability. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to address packaging format availability and inventory considerations while maintaining identical electrical and mechanical specifications.

Substiute Parts

5KP12CA-B

Littelfuse Inc.In Stock: 9655KP12CA-B Datasheet

Current PartRFQ

5KP12CA

Littelfuse Inc.In Stock: 64385KP12CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5KP12CA-B are identified based on strict equivalence of electrical and mechanical parameters. The substitution criteria are:

• Voltage - Reverse Standoff (Typ): 12V
• Voltage - Breakdown (Min): 13.3V
• Voltage - Clamping (Max) @ Ipp: 19.9V
• Current - Peak Pulse (10/1000µs): 256.3A
• Power - Peak Pulse: 5000W (5kW)
• Bidirectional Channels: 1
• Package / Case: P600, Axial
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C to 175°C (TJ)

The primary difference between the main part and its substitute is the packaging format: the 5KP12CA-B is supplied in Bulk packaging, while the 5KP12CA substitute is supplied in Cut Tape (CT) packaging. Both parts share identical electrical characteristics, mechanical specifications, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 5KP12CA-B and 5KP12CA are active production parts from Littelfuse Inc. with identical electrical performance and mechanical specifications. Selection between these parts should be based on packaging requirements and supply chain considerations:

The 5KP12CA-B in Bulk packaging is suitable for high-volume manufacturing environments with automated handling systems. The 5KP12CA in Cut Tape (CT) packaging is appropriate for applications requiring component-level traceability, smaller order quantities, or integration with tape-and-reel assembly equipment.

Both parts maintain full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing processes and long-term storage without special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5KP12CA substitute for the 5KP12CA-B in circuit applications?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Bulk versus Cut Tape). Circuit performance, voltage ratings, current handling, and temperature operating range are identical.

Q: What is the difference between Bulk and Cut Tape (CT) packaging?

A: Bulk packaging supplies components loose in a container, suitable for high-volume pick-and-place operations. Cut Tape (CT) packaging supplies components on continuous tape with carrier, suitable for automated tape-fed assembly equipment and smaller order quantities.

Q: Are both parts RoHS compliant?

A: Yes. Both the 5KP12CA-B and 5KP12CA are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: What are the key electrical parameters that define substitution for this TVS diode?

A: The critical parameters are: 12V reverse standoff voltage, 13.3V minimum breakdown voltage, 19.9V maximum clamping voltage, 256.3A peak pulse current, and 5000W peak pulse power rating. Any substitute must match all these specifications.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the circuit board layout and assembly process accommodate the selected packaging format. The P600 axial through-hole package is identical for both parts.