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SA8.0CA B0G Equivalent & Substitute Parts
Part Overview
The SA8.0CA B0G is a transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose overvoltage protection applications. This component features an 8V reverse standoff voltage with a 13.6V maximum clamping voltage and 38A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package. The SA8.0CA B0G is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain identical electrical and mechanical specifications for continued circuit design and production support.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 8 | V |
| Voltage - Breakdown (Min) | 8.89 | V |
| Voltage - Clamping (Max) @ Ipp | 13.6 | V |
| Current - Peak Pulse (10/1000µs) | 38 | 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 | — |
| Type | Zener | — |
| Bidirectional Channels | 1 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the SA8.0CA B0G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:
Electrical Parameters:
- Reverse standoff voltage: 8V (typical)
- Breakdown voltage minimum: 8.89V
- Maximum clamping voltage at peak pulse current: 13.6V
- Peak pulse current rating: 38A (10/1000µs pulse)
- Peak pulse power dissipation: 500W
- Operating temperature range: -55°C to 175°C (junction temperature)
Mechanical Parameters:
- Package type: DO-204AC (DO-15) axial through-hole
- Mounting configuration: Through-hole
- Bidirectional channels: 1
Compliance Parameters:
- RoHS3 compliance
- Moisture sensitivity level: 1 (unlimited)
- REACH unaffected status
- ECCN: EAR99
- HTSUS code: 8541.10.0080
The SA8.0CA series base product number ensures component family consistency. Substitute parts must originate from Taiwan Semiconductor Corporation to maintain manufacturing process consistency and reliability characteristics.
Parameter Comparison
| Parameter | SA8.0CA B0G (Main Part) | SA8.0CA A0G (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | Taiwan Semiconductor Corporation | Taiwan Semiconductor Corporation | Identical |
| Category | Transient Voltage Suppressors (TVS) | Transient Voltage Suppressors (TVS) | Identical |
| Series | SA | SA | Identical |
| Type | Zener | Zener | Identical |
| Bidirectional Channels | 1 | 1 | Identical |
| Voltage - Reverse Standoff (Typ) | 8V | 8V | Identical |
| Voltage - Breakdown (Min) | 8.89V | 8.89V | Identical |
| Voltage - Clamping (Max) @ Ipp | 13.6V | 13.6V | Identical |
| Current - Peak Pulse (10/1000µs) | 38A | 38A | Identical |
| Power - Peak Pulse | 500W | 500W | Identical |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Package / Case | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | Identical |
| Supplier Device Package | DO-204AC (DO-15) | DO-204AC (DO-15) | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| ECCN | EAR99 | EAR99 | Identical |
| HTSUS | 8541.10.0080 | 8541.10.0080 | Identical |
| Product Status | Discontinued at DiGi Electronics | Active | Substitute Available |
Engineering Selection Recommendations
The SA8.0CA A0G serves as a direct equivalent substitute for the discontinued SA8.0CA B0G. Both components are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, mechanical packaging, and compliance certifications.
Selection Basis:
The SA8.0CA A0G maintains active product status, ensuring continued availability for procurement and production integration. All electrical parameters—including the 8V reverse standoff voltage, 13.6V clamping voltage, and 38A peak pulse current—are identical to the original SA8.0CA B0G specification. The through-hole DO-204AC (DO-15) axial package configuration remains unchanged, permitting direct board-level substitution without circuit layout modification.
Compliance certifications are equivalent across both components: ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), REACH unaffected status, and identical ECCN and HTSUS classifications confirm regulatory and supply chain compatibility.
The SA8.0CA A0G is suitable for direct replacement in all applications previously specified for the SA8.0CA B0G without design revision or performance degradation.
Frequently Asked Questions (FAQ)
Q: Can the SA8.0CA A0G be used as a direct replacement for the SA8.0CA B0G in existing circuit designs?
A: Yes. The SA8.0CA A0G is electrically and mechanically identical to the SA8.0CA B0G. All voltage ratings, current specifications, operating temperature range, and package configuration match exactly. Direct substitution is possible without circuit modification.
Q: What is the difference between the SA8.0CA B0G and SA8.0CA A0G part numbers?
A: The difference lies in the product status designation. The SA8.0CA B0G is discontinued at DiGi Electronics, while the SA8.0CA A0G maintains active status. The electrical and mechanical specifications are identical.
Q: Are there any compliance or certification differences between these two parts?
A: No. Both components carry identical RoHS3 compliance, MSL Level 1 rating, REACH unaffected status, EAR99 ECCN classification, and HTSUS code 8541.10.0080.
Q: Will the SA8.0CA A0G fit the same PCB footprint as the SA8.0CA B0G?
A: Yes. Both components use the DO-204AC (DO-15) axial through-hole package with identical pin spacing and mechanical dimensions. No PCB layout changes are required.
Q: What is the peak pulse current rating for these TVS diodes?
A: Both the SA8.0CA B0G and SA8.0CA A0G are rated for 38A peak pulse current under 10/1000µs pulse conditions, with a maximum clamping voltage of 13.6V at this current level.
Q: Are these components suitable for power line protection applications?
A: No. Both the SA8.0CA B0G and SA8.0CA A0G are designated for general-purpose transient voltage suppression and are not rated for power line protection applications.
Q: What is the operating temperature range for these TVS diodes?
A: Both components operate across a junction temperature range of -55°C to 175°C (TJ), suitable for industrial and extended-temperature applications.
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