Equivalent & Substitute Parts for 20KPA96-B TVS Diode

Part Overview

The 20KPA96-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient protection applications. This component features a 96V reverse standoff voltage rating with a 162.75V maximum clamping voltage and 130.3A peak pulse current capability in a through-hole P600 axial package. The 20KPA96-B is classified as obsolete, making equivalent substitute parts necessary for ongoing procurement and system maintenance.

Substiute Parts

20KPA96-B

Littelfuse Inc.In Stock: 96920KPA96-B Datasheet

Current PartRFQ

20KPA96A

MDE Semiconductor IncIn Stock: 188920KPA96A Datasheet

DirectRFQ

20KPA96A-B

LittelfuseIn Stock: 108720KPA96A-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 20KPA96-B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 96V
• Voltage - Clamping (Max) @ Ipp: Must be within acceptable tolerance for circuit protection
• Current - Peak Pulse (10/1000µs): 130.3A
• Power - Peak Pulse: 20000W
• Package / Case: P600, Axial (through-hole)
• Type: Unidirectional Zener diode
• Operating Temperature Range: -55°C to 175°C

The substitute parts 20KPA96A-B and 20KPA96A maintain identical reverse standoff voltage, peak pulse current, power rating, package configuration, and operating temperature range. Both are active products with current manufacturing status, addressing the obsolescence of the original 20KPA96-B. The primary difference lies in the voltage clamping specification, where substitutes provide 155V maximum clamping versus the original 162.75V, representing a tighter clamping characteristic suitable for equivalent circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

The 20KPA96A-B and 20KPA96A are functionally equivalent substitutes for the obsolete 20KPA96-B. Both substitute parts maintain active product status, ensuring long-term availability and supply chain continuity. The 20KPA96A-B, manufactured by Littelfuse, provides direct manufacturer continuity with the original part. The 20KPA96A, supplied by MDE Semiconductor Inc, offers an alternative source while maintaining identical electrical and mechanical specifications.

Both substitutes are ROHS3 compliant and suitable for general-purpose transient voltage suppression applications. The tighter clamping voltage specification (155V versus 162.75V) in the substitute parts provides enhanced transient protection characteristics while maintaining compatibility with the original 96V reverse standoff voltage rating and 130.3A peak pulse current capability.

Frequently Asked Questions (FAQ)

Q: Can 20KPA96A-B and 20KPA96A be used interchangeably with 20KPA96-B?

A: Yes. Both substitute parts maintain the critical electrical parameters: 96V reverse standoff voltage, 130.3A peak pulse current, 20000W peak pulse power, and identical operating temperature range (-55°C to 175°C). The P600 axial through-hole package ensures mechanical compatibility. The lower clamping voltage (155V vs 162.75V) represents a tighter protection characteristic suitable for equivalent circuit applications.

Q: What is the difference between 20KPA96A-B and 20KPA96A?

A: Both parts are electrically and mechanically identical. The primary difference is manufacturer: 20KPA96A-B is manufactured by Littelfuse, while 20KPA96A is supplied by MDE Semiconductor Inc. Both are active products with current availability.

Q: Why is the original 20KPA96-B obsolete?

A: The 20KPA96-B has been discontinued by Littelfuse. The active substitute parts 20KPA96A-B and 20KPA96A provide equivalent functionality and are recommended for new designs and replacement applications.

Q: Are there any compliance differences between the original and substitute parts?

A: All three parts are ROHS3 compliant. The substitute parts maintain equivalent environmental and regulatory compliance status suitable for industrial and commercial applications.

Q: What is the significance of the P600 package specification?

A: P600 is the through-hole axial package designation. All three parts use this identical package, ensuring direct mechanical and electrical compatibility in existing PCB layouts and circuit designs without modification.