SA6.0C-B Equivalent & Substitute Parts

Part Overview

The SA6.0C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for telecom applications. This bidirectional zener diode provides transient overvoltage protection with a 6V reverse standoff voltage and 10.3V maximum clamping voltage. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for continued circuit protection functionality.

Substiute Parts

SA6.0C-B

Littelfuse Inc.In Stock: 1113SA6.0C-B Datasheet

Current PartRFQ

SA6.0CA

Taiwan Semiconductor CorporationIn Stock: 300302SA6.0CA Datasheet

DirectRFQ

SA6.0CA-B

Littelfuse Inc.In Stock: 860SA6.0CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SA6.0C-B is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Voltage - Reverse Standoff: 6V (identical)
• Voltage - Breakdown (Min): 6.67V (identical)
• Voltage - Clamping (Max) @ Ipp: 10.3V (identical)
• Power - Peak Pulse: 500W (identical)
• Type: Zener (identical)
• Bidirectional Channels: 1 (identical)

Mechanical Equivalence Requirements:

• Package / Case: DO-204AC (DO-15) Axial (identical)
• Mounting Type: Through Hole (identical)

Acceptable Variations:

• Current - Peak Pulse (10/1000µs): 49.5A to 50A (within component tolerance)
• Operating Temperature Range: -55°C to 175°C (subset of original range, acceptable for most applications)
• Manufacturer: Different manufacturers permitted if all electrical and mechanical parameters align
• Packaging Format: Bulk or Tape & Reel (both through-hole compatible)
• Product Status: Active preferred over obsolete

The identified substitutes maintain full electrical and mechanical compatibility with the SA6.0C-B while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

SA6.0CA-B (Littelfuse Inc., Active Status)

The SA6.0CA-B is the primary substitute for the obsolete SA6.0C-B. Both parts are manufactured by Littelfuse Inc. and share identical electrical specifications (6V standoff, 10.3V clamping, 49.5A peak pulse, 500W peak power). The SA6.0CA-B maintains the same DO-204AC through-hole package and achieves ROHS3 compliance. The operating temperature range is -55°C to 175°C, which covers the upper portion of the original -65°C to 175°C range. This part is available in bulk packaging and carries active product status, ensuring long-term supply continuity.

SA6.0CA (Taiwan Semiconductor Corporation, Active Status)

The SA6.0CA provides an alternative from a different manufacturer while maintaining full electrical and mechanical compatibility. Peak pulse current is specified at 50A, compared to 49.5A for the SA6.0C-B, representing a negligible variation within component tolerance. The SA6.0CA is supplied in Tape & Reel format and achieves ROHS3 compliance with REACH unaffected status. Operating temperature range is -55°C to 175°C. This part offers the highest inventory availability (300,200 pieces) and is suitable for applications where multi-source qualification is acceptable.

Both substitutes are qualified for selection based on active product status, full compliance certifications, and verified electrical and mechanical parameter equivalence.

Frequently Asked Questions (FAQ)

Q: Can SA6.0CA-B and SA6.0CA be used interchangeably with SA6.0C-B?

A: Both SA6.0CA-B and SA6.0CA are electrically and mechanically equivalent to SA6.0C-B. They share identical voltage ratings (6V standoff, 10.3V clamping), power dissipation (500W peak pulse), package type (DO-204AC through-hole), and mounting configuration. Peak pulse current specifications (49.5A for SA6.0CA-B, 50A for SA6.0CA) fall within acceptable component tolerance. Both are direct substitutes for circuit protection applications.

Q: What is the difference between SA6.0CA-B and SA6.0CA?

A: SA6.0CA-B and SA6.0CA are electrically identical TVS diodes with the same voltage and power ratings. The primary differences are manufacturer (Littelfuse vs. Taiwan Semiconductor Corporation), packaging format (Bulk vs. Tape & Reel), and inventory availability. SA6.0CA-B is supplied in bulk form, while SA6.0CA is supplied on tape and reel for automated assembly. Selection depends on procurement requirements and assembly process compatibility.

Q: Does the operating temperature range difference affect substitution?

A: The SA6.0C-B specifies -65°C to 175°C operating range, while both substitutes specify -55°C to 175°C. The substitutes cover the upper portion of the original range. For applications operating above -55°C, the substitutes are fully qualified. Applications requiring operation below -55°C require verification that the circuit design does not depend on the extended lower temperature capability of the original part.

Q: Are both substitutes RoHS compliant?

A: Yes. SA6.0C-B is RoHS Compliant. Both SA6.0CA-B and SA6.0CA are ROHS3 Compliant, representing the current RoHS standard. Both substitutes meet modern environmental and regulatory requirements for electronic component manufacturing and use.

Q: What packaging formats are available?

A: SA6.0C-B was supplied in an unspecified format (obsolete). SA6.0CA-B is available in Bulk packaging for manual assembly or small-quantity applications. SA6.0CA is available in Tape & Reel (TR) format for automated pick-and-place assembly. Selection depends on production volume and assembly methodology.

Q: Is there a difference in peak pulse current between the substitutes?

A: SA6.0C-B and SA6.0CA-B are specified at 49.5A peak pulse current (10/1000µs). SA6.0CA is specified at 50A peak pulse current. This 0.5A difference (approximately 1% variation) is within normal component tolerance and does not affect circuit protection performance or compatibility.

Q: Can I use SA6.0CA if my design was originally qualified with SA6.0C-B?

A: SA6.0CA provides full electrical and mechanical equivalence to SA6.0C-B. The part is from a different manufacturer (Taiwan Semiconductor Corporation vs. Littelfuse Inc.) but meets identical electrical specifications and package requirements. Design qualification for multi-source components should verify manufacturer-specific datasheets, but electrical performance is equivalent.