SA8.0C-B Equivalent & Substitute Parts

Part Overview

The SA8.0C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for telecom applications. This bidirectional Zener diode operates with an 8V reverse standoff voltage and provides 13.6V clamping at peak pulse current. The device is packaged in a DO-204AC (DO-15) through-hole configuration with a peak pulse power rating of 500W.

The SA8.0C-B carries an obsolete product status. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and new production applications where this component specification is required.

Substiute Parts

SA8.0C-B

Littelfuse Inc.In Stock: 1087SA8.0C-B Datasheet

Current PartRFQ

SA8.0CA

Taiwan Semiconductor CorporationIn Stock: 13804SA8.0CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA8.0C-B are identified based on electrical and mechanical parameter equivalence within the TVS diode category. The following parameters determine substitution eligibility:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 8V
• Voltage - Clamping (Max) @ Ipp: 13.6V
• Voltage - Breakdown (Min): 8.89V
• Package / Case: DO-204AC (DO-15) through-hole
• Bidirectional Channels: 1
• Type: Zener

Allowable Variation Parameters:

• Current - Peak Pulse (10/1000µs): ±0.5A tolerance
• Power - Peak Pulse: Equal or greater rating
• Operating Temperature Range: Equal or extended range
• Product Status: Active or Obsolete
• Packaging Format: Original or alternative (Tape & Reel acceptable)

The SA8.0CA meets all critical matching parameters and operates within allowable variation limits for peak pulse current (38A versus 37.5A) and maintains equivalent power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

SA8.0CA as Direct Substitute:

The SA8.0CA is functionally equivalent to the SA8.0C-B for applications requiring 8V reverse standoff voltage and 13.6V clamping characteristics in a DO-204AC through-hole package. The substitute part maintains all critical electrical parameters within specification.

Compliance Considerations:

Both parts are RoHS compliant. The SA8.0CA carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. The SA8.0C-B is RoHS Compliant with no REACH status specified.

Product Status Advantage:

The SA8.0CA carries Active product status, ensuring continued manufacturing and supply availability. The SA8.0C-B is Obsolete, making the SA8.0CA the preferred selection for new designs and ongoing production requirements.

Operating Temperature Consideration:

The SA8.0C-B operates from -65°C to 175°C. The SA8.0CA operates from -55°C to 175°C. Applications requiring operation below -55°C require evaluation of the narrower temperature range of the substitute part.

Packaging Format:

The SA8.0C-B is supplied in bulk packaging. The SA8.0CA is supplied in Tape & Reel format. Both are through-hole components with identical mechanical footprints and pinout configurations.

Frequently Asked Questions (FAQ)

Q: Can SA8.0CA replace SA8.0C-B in existing designs?

A: Yes. The SA8.0CA meets all critical electrical parameters: 8V reverse standoff voltage, 8.89V minimum breakdown voltage, and 13.6V clamping voltage. Both devices use identical DO-204AC (DO-15) through-hole packaging with equivalent mechanical footprints and lead configurations.

Q: What is the difference in peak pulse current between these parts?

A: The SA8.0C-B is rated for 37.5A peak pulse current (10/1000µs), while the SA8.0CA is rated for 38A. This 0.5A difference falls within normal manufacturing tolerance for TVS diodes and does not affect functional equivalence.

Q: Are there temperature range limitations with the SA8.0CA?

A: The SA8.0CA operates from -55°C to 175°C, compared to the SA8.0C-B range of -65°C to 175°C. Applications requiring operation below -55°C junction temperature must use the original SA8.0C-B or identify an alternative part with extended low-temperature capability.

Q: Does packaging format affect electrical performance?

A: No. The SA8.0CA supplied in Tape & Reel format and the SA8.0C-B supplied in bulk packaging contain identical die and lead materials. Packaging format affects only handling, storage, and assembly processes, not electrical characteristics.

Q: Why is the SA8.0C-B marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The SA8.0CA, manufactured by Taiwan Semiconductor Corporation, provides equivalent electrical performance with Active product status, ensuring long-term availability.

Q: Are both parts RoHS compliant?

A: Yes. The SA8.0C-B is RoHS Compliant. The SA8.0CA is ROHS3 Compliant, meeting the current regulatory standard. Both parts are suitable for applications requiring RoHS compliance.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts use identical DO-204AC (DO-15) axial through-hole packages with the same lead spacing and polarity markings. No PCB layout modifications are required for substitution.