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Taiwan Semiconductor Corporation SA10CH
- Part No.:
- SA10CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA10CH.pdf
- Description:
- 500W, 12.4V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,797
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Product details
Overview
SA10CH from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, 10V working stand-off voltage (VWM), and 18.8V maximum clamping voltage (VC) at 27A peak pulse current. It delivers sub-nanosecond response (<1.0ps) and <1μA reverse leakage above 10V, designed for automotive-grade ESD and load-dump protection in 12V systems.
For engineers reviewing the SA10CH datasheet, SA10CH pinout, SA10CH application, or SA10CH equivalent, this AEC-Q101 qualified TVS provides verified clamping performance, precise VBR (11.1–13.6V), thermal stability up to +175°C junction temperature, and DO-15 mechanical compatibility for board-level surge immunity in lighting control, body electronics, and power supply input stages.
Technical Context
The SA10CH operates as a unidirectional avalanche diode with precisely controlled breakdown voltage (VBR = 11.1–13.6V at 1mA test current), enabling reliable overvoltage clamping before downstream ICs reach damage thresholds. Its low dynamic impedance ensures minimal voltage overshoot during fast transients like ISO 7637-2 pulse 1 and pulse 2b.
Designed for automotive environments, it meets AEC-Q101 stress requirements including high-temperature operating life (HTOL), temperature cycling, and unbiased highly accelerated stress test (uHAST). The DO-204AC package supports 70A non-repetitive forward surge current (IFSM) and maintains stable clamping under -55°C to +175°C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous DC or RMS voltage the device blocks without conduction; sets system operating margin below clamping threshold. |
| VBR min/max | 11.1 V / 13.6 V at 1 mA - Confirmed avalanche onset range; guarantees clamping initiates no later than 13.6V under worst-case conditions. |
| VC @ IPPM | 18.8 V at 27 A - Measured clamping voltage during 10/1000μs surge; defines worst-case voltage seen by protected circuitry. |
| PPK | 500 W - Peak pulse power rating per 10/1000μs waveform; validates robustness against automotive load dump and inductive switching events. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood environments without derating in most PCB layouts. |
| IR @ VWM | <1 μA - Reverse leakage at 10V; ensures negligible standby power loss and signal integrity in high-impedance sensing nodes. |
| Response time | <1.0 ps - Time from 0V to VBR onset; guarantees suppression of ESD events (IEC 61000-4-2) before IC latch-up occurs. |
Pinout & Package
SA10CH uses the standard DO-204AC (DO-15) axial-leaded package with cathode band marking. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance. Molding compound complies with UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to system ground or low-side reference; completes clamping loop during transient events. |
| Cathode | Protected line connection / Clamping node | Connected to line being protected (e.g., 12V rail); conducts avalanche current when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use across temperature, humidity, and lifetime stress tests - eliminates need for additional qualification effort in Tier 1 designs. |
| 500W 10/1000μs surge rating | Withstands ISO 7637-2 Pulse 5a (load dump) up to 120V for 400ms without degradation - protects ECUs and power modules. |
| Clamping voltage ≤18.8V at 27A | Ensures protected 12V logic rails stay below 20V during worst-case transients - prevents overvoltage damage to MCU I/O and CAN transceivers. |
| DO-204AC (DO-15) package | Industry-standard axial footprint compatible with legacy through-hole assembly and automated tape-and-reel handling (3,500 pcs/reel). |
| RoHS & halogen-free compliance | Fulfills EU ELV and OEM material declarations (IEC 61249-2-21); supports green manufacturing and end-of-life recycling requirements. |
Applications
| Automotive Body Control Module (BCM) | LED Headlamp Driver Input Protection |
|---|---|
Use Scenario: Protects microcontroller GPIOs and LIN bus transceivers from battery line transients during jump-start or alternator load dump. IC Role / Device Role: Unidirectional TVS placed between 12V supply rail and ground, with cathode tied to rail. Use Value: Limits rail voltage to ≤18.8V during 500W surges, preventing latch-up or permanent damage to 20V-rated power management ICs. |
Use Scenario: Shields constant-current LED driver IC inputs from inductive kickback generated by relay-controlled headlamp switching. IC Role / Device Role: Standoff protection on high-side switch input, absorbing energy from L·di/dt spikes. Use Value: Clamps transients within 1ps, maintaining LED driver enable signal integrity and avoiding false shutdowns. |
| Industrial 12V PLC I/O Terminal | Automotive HVAC Blower Motor Control |
Use Scenario: Guards isolated RS-485 transceiver power pins against EFT bursts (IEC 61000-4-4) in factory floor environments. IC Role / Device Role: Secondary protection stage after common-mode chokes, shunting differential surges to ground. Use Value: Sub-1μA leakage preserves signal-to-noise ratio in precision analog sensor interfaces sharing the same 12V rail. |
Use Scenario: Suppresses back-EMF from brushed DC blower motor commutation in vehicle cabin air systems. IC Role / Device Role: Parallel clamping device across H-bridge low-side MOSFET source terminals. Use Value: Dissipates 500W pulses without thermal runaway, extending MOSFET lifetime and reducing field failure rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same DO-214AC package; lower PPK (400W); VBR = 11.1–12.3V; VC = 16.0V @ 25.5A | Not AEC-Q101 qualified; suited for industrial/commercial only | Select SMAJ10A only if automotive qualification is not required and 400W surge margin is sufficient. |
| P6SMB10A | DO-214AA package; identical PPK (600W); VBR = 11.1–12.3V; VC = 16.0V @ 37.5A; higher IFSM (100A) | Larger footprint; higher surge current capability but no AEC-Q101 validation | Choose P6SMB10A when higher single-pulse surge margin is needed and board space allows larger SMC package. |
Compared with SMAJ10A and P6SMB10A, SA10CH uniquely combines AEC-Q101 qualification, DO-15 through-hole compatibility, and guaranteed 500W clamping performance - making it the preferred choice for production automotive electronics where reliability and legacy assembly processes are critical.
Availability
SA10CH is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting systems, and industrial 12V power supply input protection requiring stable component supply across multi-year production cycles.
Supply support for SA10CH 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, and rectifiers, with global distribution and AEC-Q101-compliant production lines.
The SA Series was developed specifically for automotive and industrial transient suppression, emphasizing tight VBR tolerance, high-temperature reliability, and mechanical robustness in harsh environments.
FAQ
What is the exact breakdown voltage range for SA10CH?
The SA10CH has a specified breakdown voltage (VBR) range of 11.1 V to 13.6 V measured at 1 mA test current (IT), per the official Taiwan Semiconductor datasheet revision L2105. This range ensures consistent clamping behavior across production lots and temperature extremes, and directly supports design margining for 12V automotive systems where SA10CH is commonly deployed.
Is SA10CH unidirectional or bidirectional?
SA10CH is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix and confirmed by its single cathode band marking per DO-204AC mechanical drawing. It conducts only during reverse-biased overvoltage events - ideal for protecting positive-rail circuits like 12V supplies - and does not provide symmetrical clamping for AC or bipolar signals.
Does SA10CH meet AEC-Q101 requirements?
Yes, SA10CH is explicitly AEC-Q101 qualified, as stated in the "FEATURES" section of the Taiwan Semiconductor SA Series datasheet (Version L2105). This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased HAST - confirming suitability for automotive under-hood and chassis-mounted applications.
What is the maximum clamping voltage of SA10CH under surge conditions?
The maximum clamping voltage (VC) of SA10CH is 18.8 V at 27 A peak pulse current (IPPM), tested with the standard 10/1000 μs waveform. This value represents the highest voltage that will appear across the protected line during a full-rated 500W transient, ensuring downstream 20V-tolerant ICs remain within safe operating limits.
What packaging options are available for SA10CH?
SA10CH is supplied in DO-204AC (DO-15) package with two standard packing formats: 3,500 units per tape-and-reel (ordering code SA10CH) and 1,500 units per ammo box (ordering code SA10CHA0G). Both variants retain identical electrical and thermal specifications, differing only in logistics handling for SMT or manual assembly lines.
SA10CH 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 27A
- 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)
SA10CH FAQ
1.How can I place an order for SA10CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA10CH 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 SA10CH reliable?
The price and inventory of SA10CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA10CH is usually 5 days.
3.What payment methods are accepted for SA10CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA10CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA10CH?
SA10CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA10CH 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 SA10CH?
For technical support, including SA10CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA10CH requirements.
6.How does Aetrix verify that SA10CH is sourced from the original manufacturer or authorized distributors?
All SA10CH 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 SA10CH meets industry standards.
7.What is the process for return or replacement of SA10CH?
All SA10CH units undergo pre-shipment inspection (PSI). If there is an issue with SA10CH, 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 SA10CH part is unused and in its original packaging.
Return procedure for SA10CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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