5KP15CA-B Equivalent & Substitute Parts

Part Overview

The 5KP15CA-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 15V reverse standoff voltage with a 24.4V maximum clamping voltage and 5000W peak pulse power rating. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter range.

Substiute Parts

5KP15CA-B
Littelfuse Inc.In Stock: 10715KP15CA-B Datasheet
5KP15CA-B
Current Part
5KP15CA
Littelfuse Inc.In Stock: 37845KP15CA Datasheet
5KP15CA
MFR Recommended
5KP15CA-TP
Micro Commercial CoIn Stock: 13485KP15CA-TP Datasheet
5KP15CA-TP
MFR Recommended

Key Parameters

Parameter Value Unit
Voltage - Reverse Standoff (Typ) 15 V
Voltage - Breakdown (Min) 16.7 V
Voltage - Clamping (Max) @ Ipp 24.4 V
Current - Peak Pulse (10/1000µs) 209 A
Power - Peak Pulse 5000 W
Operating Temperature Range -55 to 175 °C (TJ)
Mounting Type Through Hole -
Package / Case P600, Axial -
Type Zener -
Bidirectional Channels 1 -

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP15CA-B is determined by matching the following critical electrical and mechanical parameters:

  • Voltage - Reverse Standoff (Typ): 15V
  • Voltage - Clamping (Max) @ Ipp: 24.4V
  • Power - Peak Pulse: 5000W
  • Operating Temperature Range: -55°C to 175°C (TJ)
  • Mounting Type: Through Hole
  • Type: Zener, Bidirectional (1 channel)
  • RoHS3 Compliance and MSL 1 rating

The identified substitute parts maintain these electrical specifications while differing in packaging format (Cut Tape vs. Bulk) and supplier device package designation (P600 vs. R-6). Both substitute parts are manufactured by Littelfuse Inc. or Micro Commercial Co and retain full compliance with applicable regulations.

Parameter Comparison

Parameter 5KP15CA-B (Main) 5KP15CA (Substitute) 5KP15CA-TP (Substitute)
Manufacturer Littelfuse Inc. Littelfuse Inc. Micro Commercial Co
Voltage - Reverse Standoff (Typ) 15V 15V 15V
Voltage - Breakdown (Min) 16.7V 16.7V 16.7V
Voltage - Clamping (Max) @ Ipp 24.4V 24.4V 24.4V
Current - Peak Pulse (10/1000µs) 209A 209A Not specified
Power - Peak Pulse 5000W 5000W 5000W
Operating Temperature Range -55 to 175°C (TJ) -55 to 175°C (TJ) -55 to 175°C (TJ)
Mounting Type Through Hole Through Hole Through Hole
Package / Case P600, Axial P600, Axial R-6, Axial
Type Zener Zener Zener
Bidirectional Channels 1 1 1
RoHS Status ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant
MSL Rating 1 (Unlimited) 1 (Unlimited) 1 (Unlimited)
Packaging Format Bulk Cut Tape (CT) Cut Tape (CT)

Engineering Selection Recommendations

All three parts maintain active product status and full RoHS3 compliance with MSL 1 rating, ensuring regulatory and environmental compatibility across applications. The 5KP15CA-B (Bulk packaging) and 5KP15CA (Cut Tape packaging) are both manufactured by Littelfuse Inc. and are electrically and mechanically identical, differing only in supply format. The 5KP15CA-TP from Micro Commercial Co provides an alternative source while maintaining identical voltage specifications and power ratings; however, the peak pulse current specification is not provided for this variant.

Package designation differences (P600 vs. R-6) represent supplier-specific nomenclature for equivalent axial through-hole packages. Physical compatibility should be confirmed for PCB footprint requirements in applications with space constraints.

Frequently Asked Questions (FAQ)

Q: Can 5KP15CA-B be directly replaced with 5KP15CA?

A: Yes. Both parts are manufactured by Littelfuse Inc. and are electrically and mechanically identical. The difference is packaging format: 5KP15CA-B is supplied in Bulk, while 5KP15CA is supplied in Cut Tape (CT). No circuit modifications are required.

Q: What is the difference between P600 and R-6 package designations?

A: P600 and R-6 are supplier-specific package codes for equivalent axial through-hole diode packages. Both designations refer to the same physical form factor. Verify PCB footprint compatibility with your design specifications.

Q: Is 5KP15CA-TP a suitable substitute for 5KP15CA-B?

A: 5KP15CA-TP maintains the same voltage specifications (15V reverse standoff, 24.4V clamping) and power rating (5000W). The peak pulse current specification is not provided for this part. Confirm current handling requirements with your application before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three parts carry ROHS3 Compliant status with MSL 1 (Unlimited) rating, meeting current environmental and regulatory requirements.

Q: What determines whether a TVS diode can substitute for the 5KP15CA-B?

A: Substitution requires matching the reverse standoff voltage (15V), clamping voltage (24.4V), peak pulse power (5000W), operating temperature range (-55 to 175°C), and through-hole axial mounting type. Additional considerations include manufacturer compliance certifications and availability of peak pulse current specifications.

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