SA58CA B0G Equivalent & Substitute Parts

Part Overview

The SA58CA B0G is a Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose overvoltage protection applications. This component features a 58V reverse standoff voltage with a 93.6V maximum clamping voltage and 5.6A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package.

The SA58CA B0G is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or repair requirements for systems utilizing this TVS diode specification.

Substiute Parts

SA58CA B0G

Taiwan Semiconductor CorporationIn Stock: 855SA58CA B0G Datasheet

Current PartRFQ

SA58CA A0G

Taiwan Semiconductor CorporationIn Stock: 962SA58CA A0G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA58CA B0G is determined by electrical and mechanical parameter equivalence within the TVS diode category. The following parameters establish substitution validity:

Electrical Parameters (Critical):

• Voltage - Reverse Standoff (Typ): 58V
• Voltage - Breakdown (Min): 64.4V
• Voltage - Clamping (Max) @ Ipp: 93.6V
• Current - Peak Pulse (10/1000µs): 5.6A
• Power - Peak Pulse: 500W
• Operating Temperature Range: -55°C to 175°C (TJ)

Mechanical Parameters (Critical):

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

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Substitute parts must match all critical electrical and mechanical parameters to ensure functional equivalence and direct board-level compatibility without design modification.

Parameter Comparison

Engineering Selection Recommendations

The SA58CA A0G is a direct electrical and mechanical equivalent to the SA58CA B0G. Both components share identical specifications across all critical parameters: voltage ratings, current capacity, power dissipation, operating temperature range, and package configuration.

The primary distinction between these parts is product status. The SA58CA B0G is discontinued at DiGi Electronics, while the SA58CA A0G maintains active status with confirmed inventory availability (930 pieces in stock versus 816 pieces for the discontinued variant).

Both parts satisfy identical compliance requirements: ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), and REACH unaffected status. No design modifications, board layout changes, or thermal management adjustments are required when substituting SA58CA A0G for SA58CA B0G.

Selection of the SA58CA A0G is appropriate for new designs, production continuity, and component replacement applications where the SA58CA B0G specification is required.

Frequently Asked Questions (FAQ)

Q: Can SA58CA A0G be used as a direct replacement for SA58CA B0G?

A: Yes. The SA58CA A0G is a direct substitute. All electrical parameters (voltage ratings, current capacity, power dissipation), mechanical specifications (package type, mounting configuration), and compliance certifications are identical. No circuit modifications or board redesign is necessary.

Q: What is the difference between SA58CA B0G and SA58CA A0G?

A: The components are electrically and mechanically identical. The difference is product status: SA58CA B0G is discontinued at DiGi Electronics, while SA58CA A0G is active with current inventory availability.

Q: Are both parts in the same package?

A: Yes. Both SA58CA B0G and SA58CA A0G use the DO-204AC (DO-15) axial through-hole package. Pin configuration, lead spacing, and board footprint are identical.

Q: Do these parts have the same voltage and current ratings?

A: Yes. Both parts have identical electrical specifications: 58V reverse standoff voltage, 64.4V minimum breakdown voltage, 93.6V maximum clamping voltage, and 5.6A peak pulse current.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, carry MSL Level 1 (unlimited) moisture sensitivity rating, and have REACH unaffected status.

Q: Can I use SA58CA A0G in existing designs that specify SA58CA B0G?

A: Yes. The SA58CA A0G is a complete functional equivalent. No design changes, testing, or qualification modifications are required.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -55°C to 175°C junction temperature (TJ), providing identical thermal performance characteristics.