SA160C-B Equivalent & Substitute Parts

Part Overview

The SA160C-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for transient overvoltage protection in telecom applications. This component features a 160V reverse standoff voltage with a 259V maximum clamping voltage and 2A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package.

The SA160C-B carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and maintenance requirements for systems utilizing this component.

Substiute Parts

SA160C-B

Littelfuse Inc.In Stock: 772SA160C-B Datasheet

Current PartRFQ

SA160CA

Taiwan Semiconductor CorporationIn Stock: 695SA160CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA160C-B are identified based on electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Electrical Parameters (Critical):

• Voltage - Reverse Standoff (Typ): 160V
• Voltage - Breakdown (Min): 178V
• Voltage - Clamping (Max) @ Ipp: 259V
• Current - Peak Pulse (10/1000µs): 2A
• Power - Peak Pulse: 500W

Mechanical Parameters (Critical):

• Package / Case: DO-204AC (DO-15) Axial
• Mounting Type: Through Hole
• Bidirectional Channels: 1
• Type: Zener

Functional Parameters:

• Operating Temperature Range compatibility

Parts meeting all electrical and mechanical parameters are classified as direct substitutes. The SA160CA satisfies all substitution criteria and is available as an active product from Taiwan Semiconductor Corporation.

Parameter Comparison

*The SA160CA operates from -55°C to 175°C, which does not extend to the -65°C lower limit of the SA160C-B. Applications requiring operation below -55°C require evaluation against specific system requirements.

Engineering Selection Recommendations

SA160CA (Taiwan Semiconductor Corporation) - Direct Substitute

The SA160CA is the recommended substitute for the obsolete SA160C-B. This part maintains electrical equivalence across all critical parameters: 160V reverse standoff voltage, 178V minimum breakdown voltage, 259V maximum clamping voltage, and 2A peak pulse current. Mechanical compatibility is confirmed through identical DO-204AC (DO-15) axial through-hole packaging.

The SA160CA carries Active product status, ensuring ongoing availability and supply chain support. Both components meet RoHS compliance requirements, with the SA160CA certified to ROHS3 standard. The substitute part is available in Tape & Reel packaging format with 657 units in current inventory.

The operating temperature range of the SA160CA (-55°C to 175°C) covers the upper specification of the original part. Applications operating below -55°C require assessment against system thermal requirements.

Frequently Asked Questions (FAQ)

Q: Can the SA160CA be used as a direct replacement for the SA160C-B in existing designs?

A: Yes. The SA160CA meets all electrical and mechanical specifications of the SA160C-B. Both components feature identical voltage ratings (160V standoff, 259V clamping), current ratings (2A peak pulse), and package configuration (DO-204AC through-hole axial). Direct substitution is supported for applications operating within the SA160CA temperature range of -55°C to 175°C.

Q: What is the difference in operating temperature range between these parts?

A: The SA160C-B operates from -65°C to 175°C, while the SA160CA operates from -55°C to 175°C. The SA160CA does not extend to the -65°C lower limit. Applications requiring operation below -55°C must evaluate whether the SA160CA meets system thermal specifications.

Q: Are there packaging differences between the SA160C-B and SA160CA?

A: Both parts use identical DO-204AC (DO-15) axial through-hole packaging. The SA160C-B is supplied in standard packaging, while the SA160CA is available in Tape & Reel format. This packaging difference does not affect electrical or mechanical compatibility.

Q: What compliance certifications apply to the SA160CA?

A: The SA160CA is ROHS3 compliant and REACH unaffected. Both the original SA160C-B and substitute SA160CA meet RoHS requirements, supporting compliance-driven procurement and manufacturing processes.

Q: Why is the SA160C-B marked as Obsolete?

A: The SA160C-B carries Obsolete product status from Littelfuse Inc. The SA160CA provides functional and electrical equivalence with Active product status, ensuring continued availability and supply chain support for new designs and ongoing production.

Q: Are there any applications where the SA160CA cannot substitute for the SA160C-B?

A: The SA160CA is suitable for all applications within its specified operating temperature range (-55°C to 175°C). Applications requiring operation below -55°C require alternative component selection or thermal management evaluation.