Equivalent & Substitute Parts for 5KP16 TVS Diode

Part Overview

The 5KP16 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient protection applications. This component features a 16V reverse standoff voltage rating and 5000W peak pulse power handling capability in a P600 axial through-hole package. The 5KP16 is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

5KP16

Littelfuse Inc.In Stock: 10755KP16 Datasheet

Current PartRFQ

5KP16A

Littelfuse Inc.In Stock: 48195KP16A Datasheet

DirectRFQ

SLD16U-017

Littelfuse Inc.In Stock: 6148SLD16U-017 Datasheet

MFR RecommendedRFQ

5KP16E3/TR13

Microchip TechnologyIn Stock: 9515KP16E3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP16 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must be 16V
• Unidirectional Channels: Must be 1
• Power - Peak Pulse: Must be 5000W (5kW)
• Mounting Type: Must be Through Hole
• Package / Case: Must be P600, Axial
• Operating Temperature Range: Must support -55°C to 175°C (TJ)
• Type: Must be Zener, Unidirectional

The substitute parts identified below meet all mandatory electrical and mechanical parameters. Variations in voltage clamping characteristics and peak pulse current are within acceptable tolerance ranges for this product category and do not preclude functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—5KP16A, SLD16U-017, and 5KP16E3/TR13—are active products with current manufacturing status and full ROHS3 compliance. Selection among these equivalents should be based on the following criteria:

5KP16A (Littelfuse Inc.): This part maintains manufacturer continuity with the original 5KP16 and is available in Cut Tape packaging. It provides the lowest clamping voltage (26V) among the substitutes and is suitable for applications requiring tighter voltage control.

SLD16U-017 (Littelfuse Inc.): This part carries AEC-Q101 automotive qualification and is designated as the manufacturer-recommended replacement. It is available in Cut Tape packaging and provides identical electrical performance to the 5KP16A with automotive-grade reliability assurance.

5KP16E3/TR13 (Microchip Technology): This part is available in Tape & Reel packaging, suitable for high-volume automated assembly. It exhibits a higher clamping voltage (28.8V) and lower peak pulse current (174A) compared to the other substitutes, making it appropriate for applications with different transient protection requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5KP16A directly replace the obsolete 5KP16?

A: Yes. The 5KP16A meets all mandatory electrical and mechanical parameters: 16V reverse standoff voltage, 5000W peak pulse power, P600 axial through-hole package, and -55°C to 175°C operating temperature range. The primary difference is product status (active vs. obsolete) and packaging format (Cut Tape vs. unspecified).

Q: What is the difference between the SLD16U-017 and 5KP16A?

A: Both parts share identical electrical specifications (16V standoff, 26V clamping, 196.2A peak pulse current, 5000W power rating). The SLD16U-017 carries AEC-Q101 automotive qualification and is the manufacturer-recommended replacement for the 5KP16. Selection depends on whether automotive-grade certification is required for your application.

Q: Why does the 5KP16E3/TR13 have different electrical characteristics?

A: The 5KP16E3/TR13 maintains the same 16V reverse standoff voltage and 5000W power rating but exhibits a higher clamping voltage (28.8V) and lower peak pulse current (174A). These variations remain within acceptable tolerance ranges for TVS diode substitution and do not preclude functional equivalence in general-purpose transient protection applications.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Cut Tape vs. Tape & Reel) affects procurement and assembly processes but does not alter electrical performance. The P600 axial through-hole package remains consistent across all substitutes.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All three substitute parts—5KP16A, SLD16U-017, and 5KP16E3/TR13—are ROHS3 compliant, meeting environmental and regulatory requirements equivalent to the original 5KP16.

Q: Which substitute should I select for new designs?

A: For new designs, either the 5KP16A or SLD16U-017 are recommended. The SLD16U-017 is the manufacturer-recommended replacement and includes automotive qualification. The 5KP16A provides equivalent performance with standard industrial certification. The 5KP16E3/TR13 is suitable if Tape & Reel packaging is required for automated assembly.