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Taiwan Semiconductor Corporation SA100H
- Part No.:
- SA100H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA100H.pdf
- Description:
- 500W, 123.5V, UNIDIRECTIONAL, TV
- Quantity:
- Payment:
- Shipping:
Inventory:6,910
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Product details
Overview
SA100H from Taiwan Semiconductor is a unidirectional AEC-Q101-qualified transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, designed for automotive and industrial overvoltage protection. It features 100 V working stand-off voltage (VWM), 111–136 V breakdown voltage (VBR @ 1 mA), 179 V maximum clamping voltage (VC) at 2.9 A peak pulse current, and 500 W surge capability per 10/1000 µs waveform.
For engineers reviewing the SA100H datasheet, SA100H pinout, SA100H application, or SA100H equivalent, this page delivers verified electrical parameters, polarity marking guidance, thermal derating behavior, clamping performance under standardized surge conditions, and direct-fit alternatives for automotive ESD and load-dump protection circuits.
Technical Context
The SA100H operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast clamping of high-energy transients in DC power rails and signal lines. Its 1.0 ps response time from 0 V to VBR ensures suppression before sensitive downstream circuitry sustains damage.
It meets AEC-Q101 stress test requirements for automotive use, supports junction temperatures up to +175 °C, and exhibits <1 µA reverse leakage above 10 V - enabling low-power system standby integrity. The device is rated for non-repetitive 8.3 ms half-sine surge currents up to 70 A and steady-state power dissipation of 3 W at TL = 75 °C on specified copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous DC or RMS voltage the device blocks without conduction; defines safe operating margin below breakdown. |
| VBR min/max | 111 V / 136 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 179 V @ 2.9 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected ICs or MOSFETs. |
| PPK | 500 W - Peak pulse power rating per standard IEC 61000-4-5 waveform; validates robustness against automotive load dump and ISO 7637-2 pulses. |
| TJ max | +175 °C - Maximum junction temperature; enables deployment in under-hood automotive modules and high-ambient industrial enclosures. |
| IR @ VWM | <1 µA - Reverse leakage at rated stand-off voltage; minimizes quiescent power loss and preserves battery life in always-on systems. |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package with tin-plated leads compliant to J-STD-002; supports wave and reflow soldering. |
Pinout & Package
SA100H uses a two-terminal DO-204AC (DO-15) axial package with cathode band marking. Polarity is unidirectional: the banded end is the cathode (K), connected to system ground or low-side return; the unbanded end is the anode (A), connected to the line being protected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Input/Line side | Connected to the vulnerable node (e.g., 12 V rail, LIN bus, sensor supply); conducts surge current toward cathode when clamping. |
| Cathode (banded end) | Return/Ground side | Connected to common reference (e.g., chassis ground, power ground); provides low-impedance path for transient energy dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, body electronics, and ADAS modules. |
| 1.0 ps response time (0 V → VBR) | Enables sub-nanosecond turn-on to clamp fast-rising ESD events before propagation into microcontrollers or CAN transceivers. |
| Low clamping ratio (VC/VBR ≈ 1.52) | Minimizes overvoltage overshoot during surge, reducing risk of gate oxide rupture in protected MOSFETs or latch-up in logic ICs. |
| UL 94V-0 molding compound | Ensures flame-retardant encapsulation suitable for enclosed automotive housings and safety-critical industrial control panels. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling - critical for long-term reliability in automotive ECUs operating over 15+ year lifetimes. |
Applications
| Automotive Power Rail Protection | LIN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from ISO 7637-2 load dump pulses (up to 120 V, 400 ms) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and upstream fuse or DC-DC converter input stage. Use Value: Limits peak voltage to ≤179 V during 500 W surge, preventing damage to automotive-grade PMICs and microcontrollers rated for ≤36 V absolute max. |
Use Scenario: Shielding LIN transceivers from ESD (IEC 61000-4-2 ±8 kV contact) and coupled noise on single-wire bus lines. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point, with cathode grounded to shield plane. Use Value: Sub-1 ns response ensures clamping occurs before LIN PHY's internal ESD structures fail, preserving communication integrity without signal distortion. |
| Industrial Sensor Supply Protection | Motor Drive Gate Driver Clamp |
Use Scenario: Safeguarding 24 V analog sensor outputs (e.g., pressure, temperature) from inductive kickback in factory automation I/O modules. IC Role / Device Role / Timing Role: TVS placed at sensor interface PCB edge, shunting transients to local ground before reaching precision ADC front-end. Use Value: <1 µA leakage avoids offset errors in µA-level sensor bias networks; 179 V clamping prevents saturation of rail-to-rail op-amps powered from same 24 V source. |
Use Scenario: Clamping Miller-induced voltage spikes on high-side N-channel MOSFET gates during fast switching in BLDC motor drivers. IC Role / Device Role / Timing Role: TVS connected between gate and source terminals to limit dV/dt-induced gate overvoltage. Use Value: 111–136 V VBR range aligns with typical 100 V gate drive rails; fast response prevents false turn-on and shoot-through in half-bridge configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A | Same DO-214AC package; bidirectional; VBR = 111–122 V; VC = 166 V @ 3.0 A; lower PPK = 400 W. | Supports AC-coupled or floating signal lines; unsuitable for DC-biased unidirectional rails requiring cathode-ground configuration. | Select SMAJ100A only if bidirectional protection is needed and 400 W surge rating suffices; verify layout accommodates different footprint. |
| 1.5KE100A | DO-201AD package; unidirectional; VBR = 105–116 V; VC = 166 V @ 3.0 A; PPK = 1500 W; higher thermal mass but larger size. | Better suited for high-energy industrial surge environments (e.g., DIN rail power supplies); incompatible pin spacing with DO-15 layouts. | Choose 1.5KE100A when >500 W surge margin is mandatory and board space allows larger axial package; not drop-in compatible. |
Compared with SA100H, SMAJ100A offers bidirectional operation in a surface-mount package but sacrifices 100 W surge capacity and requires redesign for polarity-insensitive placement; 1.5KE100A delivers triple the peak power in a physically larger through-hole package, necessitating mechanical and thermal revalidation.
Availability
SA100H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and motor control gate driver clamping requiring stable component supply across extended production cycles.
Supply support for SA100H 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 specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The SA Series was developed specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing fast response, high-temperature stability, and repeatable clamping performance under repetitive surge stress.
FAQ
What is the polarity configuration of the SA100H?
The SA100H is a unidirectional TVS diode with cathode-band marking. The banded end is the cathode (K), intended to be connected to system ground or low-side return; the unbanded end is the anode (A), connected to the line being protected. This configuration ensures proper avalanche conduction during positive transients on the anode side. Confirm orientation during PCB layout using the marking diagram in TSC's SA Series datasheet revision L2105.
Does the SA100H meet AEC-Q101 requirements for automotive use?
Yes, the SA100H is explicitly qualified to AEC-Q101 standards, as indicated by the "H" suffix in its ordering code. This includes validation for temperature cycling, highly accelerated temperature-humidity bias (HAST), and ESD testing per JESD22-A114. The SA100H is approved for use in automotive powertrain, body electronics, and infotainment systems where reliability under thermal and electrical stress is critical.
What is the maximum clamping voltage of the SA100H under surge conditions?
The SA100H has a maximum clamping voltage (VC) of 179 V at 2.9 A peak pulse current (IPPM), measured using the standard 10/1000 µs double-exponential surge waveform. This value represents the upper limit of voltage seen by downstream components during a 500 W transient event and is confirmed in the "Maximum Ratings and Electrical Characteristics" table of the SA Series datasheet (L2105, Page 4).
Can the SA100H be used in bidirectional signal line protection?
No, the SA100H is strictly unidirectional and must not be used on AC-coupled or floating bidirectional lines such as CAN or USB. For those applications, select a bidirectional variant like SA100A (same VWM/VBR but symmetrical conduction) or SMAJ100A. Using SA100H on a bidirectional line risks permanent failure during negative transients due to lack of reverse avalanche capability.
What is the thermal derating behavior of the SA100H above 25°C ambient?
The SA100H's peak pulse power (PPK) is derated linearly above TA = 25°C, per Figure 2 in the SA Series datasheet (L2105). At 85°C ambient, PPK drops to approximately 350 W; at 125°C, it falls to ~200 W. Derating applies to non-repetitive pulses - for repetitive surges, average power must remain within the 3 W steady-state limit at TL = 75°C with specified copper pad mounting.
SA100H 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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA100H FAQ
1.How can I place an order for SA100H through Aetrix?
Please submit a Request for Quotation (RFQ) for SA100H 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 SA100H reliable?
The price and inventory of SA100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA100H is usually 5 days.
3.What payment methods are accepted for SA100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA100H?
SA100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA100H 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 SA100H?
For technical support, including SA100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA100H requirements.
6.How does Aetrix verify that SA100H is sourced from the original manufacturer or authorized distributors?
All SA100H 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 SA100H meets industry standards.
7.What is the process for return or replacement of SA100H?
All SA100H units undergo pre-shipment inspection (PSI). If there is an issue with SA100H, 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 SA100H part is unused and in its original packaging.
Return procedure for SA100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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