SA160 Equivalent & Substitute Parts

Part Overview

The SA160 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This component features a 160V reverse standoff voltage rating and is housed in a DO-204AC (DO-15) axial through-hole package. The SA160 is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and component procurement.

Substiute Parts

SA160

Littelfuse Inc.In Stock: 25156SA160 Datasheet

Current PartRFQ

SA160A

Fairchild SemiconductorIn Stock: 7006SA160A Datasheet

DirectRFQ

SA160A-AP

Micro Commercial CoIn Stock: 1103SA160A-AP Datasheet

MFR RecommendedRFQ

SA160A-BP

Micro Commercial CoIn Stock: 871SA160A-BP Datasheet

MFR RecommendedRFQ

SA160A-TP

Micro Commercial CoIn Stock: 972SA160A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA160 are qualified based on the following critical parameters that determine functional equivalence:

• Voltage - Reverse Standoff (Typ): 160V
• Current - Peak Pulse (10/1000µs): 2A
• Power - Peak Pulse: 500W
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, Axial
• Type: Zener, Unidirectional (1 channel)

All substitute parts listed maintain these core electrical and mechanical specifications, ensuring direct functional compatibility in circuit applications designed for the SA160.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the SA160, the following substitute parts are qualified for direct replacement:

SA160A (Fairchild Semiconductor) is a direct equivalent with matching electrical specifications. However, this part is classified as obsolete, limiting long-term availability.

SA160A-AP, SA160A-BP, and SA160A-TP (all manufactured by Micro Commercial Co) are active-status alternatives that provide equivalent electrical performance. These parts maintain the same voltage ratings, current handling, and temperature operating range as the original SA160. All substitute parts are RoHS3 compliant or REACH unaffected, meeting current environmental and regulatory requirements.

The primary distinction among the Micro Commercial Co variants (SA160A-AP, SA160A-BP, SA160A-TP) relates to packaging and distribution channels rather than electrical performance. Selection among these three should be based on supplier availability and procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can SA160A-AP, SA160A-BP, and SA160A-TP be used interchangeably with the original SA160?

A: Yes. All three Micro Commercial Co parts maintain identical electrical specifications: 160V reverse standoff voltage, 2A peak pulse current, 500W peak pulse power, and -55°C to 175°C operating temperature range. They are functionally equivalent for circuit applications designed for the SA160.

Q: What is the difference between SA160A-AP, SA160A-BP, and SA160A-TP?

A: These part numbers represent variants from Micro Commercial Co with differences in packaging and distribution channels. Electrical specifications are identical across all three variants. Selection should be based on supplier availability and procurement logistics.

Q: Are there package compatibility considerations when substituting the SA160?

A: The SA160A from Fairchild supports both DO-204AC and DO-15 package designations. The Micro Commercial Co variants (SA160A-AP, SA160A-BP, SA160A-TP) are specified for DO-15 package. Both package types are axial through-hole configurations with compatible pinouts for the SA160 application. Verify PCB footprint compatibility with your specific design.

Q: What is the voltage clamping difference between the SA160 and its substitutes?

A: The SA160 specifies a maximum clamping voltage of 271.95V at peak pulse current, while SA160A variants specify 259V. Both values fall within acceptable transient suppression performance for general-purpose applications. The lower clamping voltage of the substitutes provides slightly improved transient suppression characteristics.

Q: Are all substitute parts RoHS compliant?

A: The SA160 and SA160A are ROHS3 compliant. The Micro Commercial Co variants (SA160A-AP, SA160A-BP, SA160A-TP) are REACH unaffected. Both compliance statuses meet current environmental regulations for electronic component manufacturing and use.