SA7.5CA B0G Equivalent & Substitute Parts

Part Overview

The SA7.5CA B0G is a Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose overvoltage protection applications. This component features a 7.5V reverse standoff voltage with a 12.9V maximum clamping voltage and 40A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package format.

The SA7.5CA B0G has been discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures continued availability for design implementations, repairs, and production requirements where this specific part number is no longer obtainable through standard distribution channels.

Substiute Parts

SA7.5CA B0G
Taiwan Semiconductor CorporationIn Stock: 1039SA7.5CA B0G Datasheet
SA7.5CA B0G
Current Part
SA7.5CA A0G
Taiwan Semiconductor CorporationIn Stock: 1209SA7.5CA A0G Datasheet
SA7.5CA A0G
Direct

Key Parameters

Parameter Value Unit
Voltage - Reverse Standoff (Typ) 7.5 V
Voltage - Breakdown (Min) 8.33 V
Voltage - Clamping (Max) @ Ipp 12.9 V
Current - Peak Pulse (10/1000µs) 40 A
Power - Peak Pulse 500 W
Operating Temperature Range -55 to 175 °C (TJ)
Package / Case DO-204AC, DO-15, Axial
Mounting Type Through Hole
Bidirectional Channels 1
Type Zener

Substitute Part Grouping Explanation

Substitute parts for the SA7.5CA B0G are identified based on electrical and mechanical parameter equivalence within the TVS diode category. The substitution logic requires exact matching of the following critical parameters:

  • Voltage - Reverse Standoff (Typ): 7.5V
  • Voltage - Clamping (Max) @ Ipp: 12.9V
  • Current - Peak Pulse (10/1000µs): 40A
  • Power - Peak Pulse: 500W
  • Package / Case: DO-204AC (DO-15) Axial
  • Mounting Type: Through Hole
  • Bidirectional Channels: 1
  • Type: Zener

Parts meeting all these criteria are classified as direct electrical and mechanical equivalents. The SA7.5CA A0G satisfies all substitution requirements and is listed as an active product with current manufacturing status.

Parameter Comparison

Parameter SA7.5CA B0G (Main Part) SA7.5CA A0G (Substitute)
Manufacturer Taiwan Semiconductor Corporation Taiwan Semiconductor Corporation
Category Transient Voltage Suppressors (TVS) Transient Voltage Suppressors (TVS)
Series SA SA
Type Zener Zener
Voltage - Reverse Standoff (Typ) 7.5V 7.5V
Voltage - Breakdown (Min) 8.33V 8.33V
Voltage - Clamping (Max) @ Ipp 12.9V 12.9V
Current - Peak Pulse (10/1000µs) 40A 40A
Power - Peak Pulse 500W 500W
Operating Temperature Range -55°C ~ 175°C (TJ) -55°C ~ 175°C (TJ)
Mounting Type Through Hole Through Hole
Package / Case DO-204AC, DO-15, Axial DO-204AC, DO-15, Axial
Bidirectional Channels 1 1
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
ECCN EAR99 EAR99
HTSUS 8541.10.0080 8541.10.0080
Product Status Discontinued at DiGi Electronics Active

Engineering Selection Recommendations

The SA7.5CA A0G is the direct substitute for the discontinued SA7.5CA B0G. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, thermal operating range, and mechanical packaging. The SA7.5CA A0G maintains active product status with current manufacturing availability, ensuring supply chain continuity.

Both parts comply with ROHS3 requirements and carry REACH Unaffected status, meeting environmental and regulatory compliance standards. The identical ECCN and HTSUS classifications confirm equivalent trade and export compliance profiles.

Selection of the SA7.5CA A0G as a replacement for SA7.5CA B0G introduces no electrical, thermal, or mechanical compatibility issues in circuit implementations. The through-hole axial package format remains consistent, permitting direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the SA7.5CA A0G be used as a direct replacement for the SA7.5CA B0G?

A: Yes. The SA7.5CA A0G is a direct electrical and mechanical equivalent. All critical parameters—reverse standoff voltage, clamping voltage, peak pulse current, power dissipation, operating temperature range, and package format—are identical between the two parts.

Q: What is the difference between the SA7.5CA B0G and SA7.5CA A0G?

A: The primary difference is product status. The SA7.5CA B0G is discontinued at DiGi Electronics, while the SA7.5CA A0G maintains active manufacturing status. No electrical or mechanical differences exist between these parts.

Q: Are there any package or pinout differences?

A: No. Both parts use the DO-204AC (DO-15) axial through-hole package format with identical pinout and mechanical dimensions. Board-level substitution requires no layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SA7.5CA B0G and SA7.5CA A0G are ROHS3 compliant, REACH Unaffected, and carry identical ECCN and HTSUS classifications.

Q: What is the operating temperature range for these TVS diodes?

A: Both parts operate across a junction temperature range of -55°C to 175°C (TJ), providing thermal performance suitable for industrial and commercial applications.

Q: Can these parts be used for power line protection applications?

A: No. Both the SA7.5CA B0G and SA7.5CA A0G are designated for general-purpose transient voltage suppression and are not rated for power line protection applications.

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