5KP14C Equivalent & Substitute Parts

Part Overview

The 5KP14C is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This component features a 14V reverse standoff voltage, 5000W peak pulse power rating, and P600 axial through-hole packaging. The 5KP14C is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage ratings, power dissipation, and thermal operating ranges while meeting current product availability and compliance standards.

Substiute Parts

5KP14C

Littelfuse Inc.In Stock: 8445KP14C Datasheet

Current PartRFQ

5KP14CA

Littelfuse Inc.In Stock: 31835KP14CA Datasheet

DirectRFQ

SLD14-018-B

Littelfuse Inc.In Stock: 1145SLD14-018-B Datasheet

MFR RecommendedRFQ

5KP14CE3/TR13

Microchip TechnologyIn Stock: 10745KP14CE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP14C is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must equal 14V
• Bidirectional Channels: Must equal 1
• Power - Peak Pulse: Must equal 5000W (5kW)
• Mounting Type: Must be Through Hole
• Package / Case: Must be P600, Axial
• Operating Temperature Range: Must support -55°C ~ 175°C (TJ)

Substitute parts are grouped based on their ability to maintain these core electrical and mechanical specifications. Variations in voltage clamping characteristics and peak pulse current are acceptable within the defined parameter envelope, provided all critical specifications remain within acceptable tolerances for the intended application.

Parameter Comparison

Engineering Selection Recommendations

5KP14CA (Littelfuse Inc., Active Status) This part is the direct Littelfuse equivalent with active product status. It maintains identical voltage and power specifications with documented peak pulse current of 219.8A. Available in Cut Tape packaging with 3100 units in stock. ROHS3 compliant. Recommended as the primary substitute for the obsolete 5KP14C.

SLD14-018-B (Littelfuse Inc., Active Status, AEC-Q101 Qualified) This part provides automotive-grade qualification under AEC-Q101 with identical electrical specifications to 5KP14CA (23.2V clamping, 219.8A peak pulse current). Available in Bulk packaging with 1090 units in stock. ROHS3 and REACH compliant. Suitable for applications requiring automotive-grade components.

5KP14CE3/TR13 (Microchip Technology, Active Status) This part is manufactured by Microchip Technology and maintains the 14V reverse standoff voltage and 5000W power rating. Voltage clamping is 25.8V with 194A peak pulse current. Available in Tape & Reel packaging with 986 units in stock. ROHS3 and REACH compliant. Acceptable substitute where cross-manufacturer sourcing is permitted.

Frequently Asked Questions (FAQ)

Q: Can I use 5KP14CA as a direct replacement for the obsolete 5KP14C? A: Yes. The 5KP14CA maintains identical voltage ratings (14V reverse standoff), power dissipation (5000W), operating temperature range (-55°C ~ 175°C), and P600 axial through-hole packaging. It is the recommended substitute with active product status and higher inventory availability.

Q: What is the difference between 5KP14CA and SLD14-018-B? A: Both parts share identical electrical specifications (14V standoff, 23.2V clamping, 219.8A peak pulse, 5000W power). The primary difference is that SLD14-018-B carries AEC-Q101 automotive qualification and is available in Bulk packaging, while 5KP14CA is available in Cut Tape. Select SLD14-018-B for automotive applications requiring qualification documentation.

Q: Why does 5KP14CE3/TR13 have different clamping voltage (25.8V vs 23.2V)? A: The 5KP14CE3/TR13 is manufactured by Microchip Technology and exhibits slightly higher voltage clamping characteristics (25.8V) while maintaining the same 14V reverse standoff voltage and 5000W power rating. This variation remains within acceptable substitution parameters for general-purpose transient voltage suppression applications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed (5KP14CA, SLD14-018-B, and 5KP14CE3/TR13) are ROHS3 compliant. SLD14-018-B and 5KP14CE3/TR13 also carry REACH Unaffected status.

Q: What packaging options are available for these substitutes? A: 5KP14CA is available in Cut Tape (CT) packaging. SLD14-018-B is available in Bulk packaging. 5KP14CE3/TR13 is available in Tape & Reel (TR) packaging. Select based on your procurement and assembly requirements.

Q: Can I mix manufacturers in my design? A: Yes, provided the electrical and mechanical specifications remain compatible. All listed substitutes maintain identical voltage ratings, power dissipation, operating temperature ranges, and P600 axial through-hole packaging. Cross-manufacturer substitution is acceptable for general-purpose applications unless your design specifications require single-source qualification.