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SA100CA Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts
Part Overview
The SA100CA is a Transient Voltage Suppressor (TVS) diode manufactured by onsemi, classified as a Zener-type bidirectional TVS device in the DO-15 package. This component is designed for general-purpose transient voltage protection applications. The SA100CA is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 100V |
| Voltage - Breakdown (Min) | 111V |
| Voltage - Clamping (Max) @ Ipp | 162V |
| Current - Peak Pulse (10/1000µs) | 3.1A |
| Power - Peak Pulse | 500W |
| Type | Zener |
| Bidirectional Channels | 1 |
| Mounting Type | Through Hole |
| Package / Case | DO-204AC, DO-15, Axial |
Substitute Part Grouping Explanation
Substitute parts for the SA100CA are grouped based on strict electrical and mechanical parameter matching:
Direct Equivalents (Identical Electrical Parameters):
- Voltage - Reverse Standoff: 100V
- Voltage - Breakdown (Min): 111V
- Voltage - Clamping (Max) @ Ipp: 162V
- Current - Peak Pulse: 3.1A or 3.2A (within tolerance)
- Power - Peak Pulse: 500W
- Type: Zener, Bidirectional
- Mounting: Through Hole, DO-15/DO-204AC package
Similar Parts (Equivalent Electrical Parameters, Different Packaging or Manufacturer):
- P5KE100CA series (Micro Commercial Co): Identical electrical specifications with alternative packaging options
- SA100CA variants from Micro Commercial Co: Same base electrical parameters with different tape/reel or bulk packaging
All substitute parts maintain the core electrical characteristics required for transient voltage suppression at 100V standoff voltage with 162V maximum clamping voltage.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Package | Product Status | Operating Temperature |
|---|---|---|---|---|---|---|---|---|---|
| SA100CA | onsemi | 100V | 111V | 162V | 3.1A | 500W | DO-15 | Obsolete | - |
| SA100CA | Taiwan Semiconductor Corporation | 100V | 111V | 162V | 3.2A | 500W | DO-204AC (DO-15) | Active | -55°C ~ 175°C (TJ) |
| SA100CA-E3/54 | Vishay General Semiconductor - Diodes Division | 100V | 111V | 162V | 3.1A | 500W | DO-204AC (DO-15) | Active | -55°C ~ 175°C (TJ) |
| SA100CAHE3/54 | Vishay General Semiconductor - Diodes Division | 100V | 111V | 162V | 3.1A | 500W | DO-204AC (DO-15) | Active | -55°C ~ 175°C (TJ) |
| P5KE100CA-AP | Micro Commercial Co | 100V | 111V | 162V | 3.1A | 500W | DO-15 | Active | -65°C ~ 175°C (TJ) |
| P5KE100CA-BP | Micro Commercial Co | 100V | 111V | 162V | 3.1A | 500W | DO-15 | Active | -65°C ~ 175°C (TJ) |
| P5KE100CA-TP | Micro Commercial Co | 100V | 111V | 162V | 3.1A | 500W | DO-15 | Active | -65°C ~ 175°C (TJ) |
| SA100CA-AP | Micro Commercial Co | 100V | 111V | 162V | 3.1A | 500W | DO-15 | Active | -55°C ~ 175°C (TJ) |
| SA100CA-BP | Micro Commercial Co | 100V | 111V | 162V | 3.1A | 500W | DO-15 | Active | -55°C ~ 175°C (TJ) |
| SA100CA-TP | Micro Commercial Co | 100V | 111V | 162V | 3.1A | 500W | DO-15 | Active | -55°C ~ 175°C (TJ) |
Engineering Selection Recommendations
Primary Recommendation - Active Status Priority: Select from active product status alternatives to ensure long-term availability and supply chain stability. The SA100CA from Taiwan Semiconductor Corporation, SA100CA-E3/54 from Vishay, and SA100CAHE3/54 from Vishay are all active products with identical electrical specifications to the obsolete onsemi SA100CA.
Automotive Applications: The SA100CAHE3/54 variant from Vishay includes AEC-Q101 automotive qualification, suitable for automotive-grade transient voltage suppression applications requiring automotive compliance.
Extended Temperature Range: The P5KE100CA series (P5KE100CA-AP, P5KE100CA-BP, P5KE100CA-TP) from Micro Commercial Co offers an extended operating temperature range of -65°C to 175°C, compared to -55°C to 175°C for other variants, providing additional thermal margin for extreme environment applications.
Packaging Considerations: All substitute parts maintain DO-15/DO-204AC through-hole axial packaging compatibility. Packaging variants (Tape & Reel vs. Bulk) are available depending on procurement volume and assembly requirements.
Frequently Asked Questions (FAQ)
Q: Can I directly replace the obsolete onsemi SA100CA with any of the listed substitutes?
A: Yes. All listed substitute parts maintain identical electrical parameters: 100V reverse standoff voltage, 111V minimum breakdown voltage, 162V maximum clamping voltage, and 3.1A peak pulse current. The DO-15/DO-204AC through-hole axial package is mechanically compatible across all variants.
Q: What is the difference between SA100CA variants from different manufacturers?
A: The electrical specifications are identical across manufacturers. Differences exist in product status (active vs. obsolete), operating temperature ranges, packaging options (Tape & Reel vs. Bulk), and compliance certifications. Taiwan Semiconductor Corporation, Vishay, and Micro Commercial Co all offer active SA100CA equivalents.
Q: Which substitute should I select for automotive applications?
A: The SA100CAHE3/54 from Vishay General Semiconductor - Diodes Division includes AEC-Q101 automotive qualification and is specifically designed for automotive-grade transient voltage suppression.
Q: Are there differences in peak pulse current between substitutes?
A: The Taiwan Semiconductor Corporation variant specifies 3.2A peak pulse current, while other substitutes specify 3.1A. Both values are within the functional range for this device class and maintain the 500W peak pulse power rating.
Q: What packaging options are available for the SA100CA substitute parts?
A: All substitute parts are available in DO-15/DO-204AC through-hole axial packages. Packaging formats include Tape & Reel (TR) for automated assembly and Bulk for manual assembly or lower-volume applications.
Q: Can I use P5KE100CA series as a substitute for SA100CA?
A: Yes. The P5KE100CA series (P5KE100CA-AP, P5KE100CA-BP, P5KE100CA-TP) from Micro Commercial Co maintains identical electrical specifications and DO-15 package compatibility. The primary difference is the extended operating temperature range of -65°C to 175°C compared to -55°C to 175°C for SA100CA variants.
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