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Taiwan Semiconductor Corporation SA100C
- Part No.:
- SA100C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA100C.pdf
- Description:
- 500W, 123.5V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,479
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Product details
Overview
SA100C from Taiwan Semiconductor is a unidirectional 500W transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, with 100V working stand-off voltage (VWM), 111–136V breakdown voltage (VBR @ 1mA), and 179V maximum clamping voltage (VC) at 2.9A peak pulse current - designed for automotive and industrial power rail surge protection.
For engineers reviewing the SA100C datasheet, SA100C pinout, SA100C application, or SA100C equivalent, this device delivers fast sub-nanosecond response (<1.0ps), low leakage (<1μA @ 100V), AEC-Q101 qualification (per SA100CH variant), and robust 500W surge handling per 10/1000μs waveform - critical for ESD and load-dump immunity in 12V/24V systems.
Technical Context
The SA100C operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (111–136V), clamping transients to ≤179V at 2.9A. Its junction temperature rating extends to +175°C, supporting under-hood automotive environments.
It features pure tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, and meets JESD201 Class 2 whisker resistance - enabling reliable reflow soldering and long-term mechanical stability in high-vibration applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 111 / 136 V @ 1 mA - Confirmed breakdown threshold range defining turn-on precision |
| VC @ IPPM | 179 V @ 2.9 A - Clamping voltage during 10/1000μs surge, limiting downstream stress |
| PPK | 500 W - Peak pulse power rating per standard 10/1000μs waveform |
| IR @ VWM | <1 μA - Reverse leakage ensures minimal standby power loss and signal integrity |
| TJ max | +175 °C - Enables operation in engine compartment or industrial control enclosures |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 0.400g mass and cathode band marking |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band indicating the cathode terminal. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / surge return node | Connected to system ground or low-side reference; carries full surge current during clamping |
| Cathode | Protected line input / high-side connection | Connected to protected rail (e.g., 12V battery line); blocks normal operation up to 100V, avalanches above VBR |
Key Features
| Feature | Design Value |
|---|---|
| 500W peak pulse power | Withstands ISO 7637-2 Load Dump Pulse 5a (12V systems) without degradation |
| <1.0 ps response time | Clamps ESD events (IEC 61000-4-2) before sensitive ICs experience overvoltage |
| AEC-Q101 qualified variant available (SA100CH) | Validated for automotive electronics per stress test requirements including HTOL, TCT, and HTRB |
| UL 94V-0 molded case | Prevents flame propagation in enclosed modules during fault conditions |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping transients within 1.0ps. Use Value: Limits voltage to ≤179V during 500W 10/1000μs pulses, preventing damage to LDOs and microcontrollers. | Use Scenario: Shielding digital input terminals of programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Standoff protection on 24V dry-contact inputs, absorbing inductive kickback from solenoids and relays. Use Value: Maintains <1μA leakage at 24V nominal, ensuring clean logic thresholds while surviving repeated 40A surge events. |
| LED Driver Overvoltage Clamp | Power Supply Inrush & Surge Suppression |
Use Scenario: Safeguarding constant-current LED drivers against line transients in streetlight and signage applications. IC Role / Device Role / Timing Role: Parallel-connected TVS across output stage, activated only during overvoltage faults. Use Value: Clamps to 179V before driver ICs exceed absolute maximum ratings, preserving luminous output stability. | Use Scenario: Front-end surge suppression for AC/DC adapters and industrial SMPS units. IC Role / Device Role / Timing Role: Primary-side transient clamp on bulk capacitor input, diverting energy before rectifier and controller stages. Use Value: Handles 500W pulses without thermal runaway, enabling compliance with IEC 61000-4-5 Level 4 (4kV) |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ100A | Same DO-214AC package, 100V VWM, but bidirectional; VC = 165V @ 3.1A | Requires polarity-aware layout; not suitable where unidirectional blocking is mandatory | Choose if bipolar protection needed; verify PCB polarity alignment |
| ON Semiconductor 1.5SMC100A | DO-214AB package, 100V VWM, VC = 165V @ 3.1A, higher IR (≤5μA) | Larger footprint (7.11 × 6.22 mm vs. DO-15's 4.2 × 2.2 mm); less suited for space-constrained automotive modules | Select when board area allows larger SMC package and higher leakage tolerance exists |
Compared with SMAJ100A and 1.5SMC100A, the SA100C offers tighter unidirectional clamping control, smaller DO-15 footprint, and lower leakage - making it optimal for compact, high-reliability 12V/24V automotive and industrial power rails where polarity is fixed and space is constrained.
Availability
SA100C is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and LED driver overvoltage protection requiring stable component supply and long-lifecycle support.
Supply support for SA100C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs since 1979.
The SA Series is engineered specifically for high-energy transient suppression in automotive, industrial, and lighting applications - emphasizing AEC-Q101 qualification, tight parameter distribution, and robust surge endurance.
FAQ
What is the exact breakdown voltage range for SA100C?
The SA100C has a guaranteed breakdown voltage (VBR) range of 111 V to 136 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range defines the voltage threshold at which the SA100C initiates avalanche conduction and begins clamping - critical for ensuring compatibility with 100V-rated system margins and avoiding premature triggering.
Is SA100C AEC-Q101 qualified?
The base SA100C is not AEC-Q101 qualified; however, the SA100CH variant - identical in electrical specs and DO-204AC packaging - is fully AEC-Q101 qualified per Rev L2105 documentation. For automotive applications requiring qualification, SA100CH must be specified; SA100C remains suitable for industrial and commercial use where qualification is not mandated.
What is the maximum clamping voltage of SA100C under surge conditions?
The SA100C exhibits a maximum clamping voltage (VC) of 179 V at 2.9 A peak pulse current (IPPM), tested per 10/1000μs waveform. This value represents the highest voltage seen across the SA100C during standardized surge events - directly determining the protective margin for downstream components like regulators and microcontrollers.
Does SA100C have polarity markings, and how is it oriented in-circuit?
Yes, SA100C uses a cathode band marking on the DO-204AC (DO-15) body to identify the cathode terminal. In-circuit, the cathode connects to the protected line (e.g., 12V battery rail), and the anode connects to ground - enabling unidirectional operation that blocks reverse voltage up to 100V and clamps positive transients above VBR.
Can SA100C replace SA100A in existing designs?
No - SA100C and SA100A are distinct variants: SA100C has VBR = 111–136 V, while SA100A has tighter VBR = 111–123 V and lower VC = 162 V @ 3.2 A. Substituting SA100C for SA100A may raise clamping voltage by 17 V and reduce surge current handling, potentially compromising protection margins in designs relying on SA100A's tighter spec.
SA100C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- SA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA100C FAQ
1.How can I place an order for SA100C through Aetrix?
Please submit a Request for Quotation (RFQ) for SA100C on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SA100C reliable?
The price and inventory of SA100C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA100C is usually 5 days.
3.What payment methods are accepted for SA100C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA100C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA100C?
SA100C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA100C order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SA100C?
For technical support, including SA100C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA100C requirements.
6.How does Aetrix verify that SA100C is sourced from the original manufacturer or authorized distributors?
All SA100C products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SA100C meets industry standards.
7.What is the process for return or replacement of SA100C?
All SA100C units undergo pre-shipment inspection (PSI). If there is an issue with SA100C, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SA100C part is unused and in its original packaging.
Return procedure for SA100C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA100C Tags
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