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Taiwan Semiconductor Corporation SA110CH
- Part No.:
- SA110CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA110CH.pdf
- Description:
- 500W, 135.5V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,821
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Product details
Overview
SA110CH from Taiwan Semiconductor is a unidirectional AEC-Q101 qualified transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, 110V working stand-off voltage (VWM), and 196V maximum clamping voltage (VC) at 2.6A IPPM - used to protect automotive power supply rails and CAN/LIN transceivers against EFT and load dump.
For engineers reviewing the SA110CH datasheet, SA110CH pinout, SA110CH application, or SA110CH equivalent, key selection criteria include its AEC-Q101 qualification, 175°C junction temperature rating, low 1μA reverse leakage at 110V, fast <1.0ps response time, and DO-15 mechanical compatibility with legacy through-hole PCB layouts.
Technical Context
The SA110CH operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 122–149V breakdown range (VBR @ 1mA). It clamps transients to ≤196V at 2.6A peak pulse current (IPPM), dissipating energy within its 500W 10/1000μs rating while maintaining <1μA leakage above 110V.
Designed for automotive-grade reliability, it meets JESD201 Class 2 whisker resistance, UL 94V-0 molding compound, and pure tin-plated leads per J-STD-002. Its thermal derating follows Fig.2, sustaining full 500W only at TA ≤25°C and dropping to ~300W at 85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous DC or RMS voltage the device blocks without clamping; sets minimum system operating margin before protection activates. |
| VBR min/max | 122 / 149 V @ 1 mA - Breakdown occurs within this range; defines turn-on threshold tolerance for consistent surge response across production lots. |
| VC @ IPPM | 196 V @ 2.6 A - Clamping voltage during 10/1000μs surge; determines worst-case overvoltage seen by downstream ICs during transient events. |
| PPK | 500 W - Peak pulse power handling at 10/1000μs waveform; validates capability to absorb ISO 7637-2 Pulse 1, 2a, and 5a transients. |
| TJ max | 175 °C - Maximum junction temperature; enables operation in under-hood environments and supports thermal design with 75°C lead temperature derating. |
| IR @ VWM | <1 μA - Reverse leakage at rated stand-off voltage; ensures negligible quiescent current draw in always-on automotive modules. |
| Package | DO-204AC (DO-15) - Standard axial-leaded through-hole package with 0.400g mass; compatible with wave soldering and legacy board assembly processes. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; completes clamping loop during reverse-biased transient events. |
| Cathode | Protected line input | Connected to protected rail (e.g., 12V battery line); conducts surge current to ground when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, humidity bias, and mechanical shock per stress test requirements. |
| 500W 10/1000μs surge rating | Meets ISO 7637-2 Pulse 5a (load dump) energy absorption without failure or parameter shift. |
| <1.0ps response time | Clamps transients before sensitive logic or analog circuitry experiences damaging overvoltage - critical for CAN FD and LIN bus protection. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained automotive supply chains. |
| UL 94V-0 molding compound | Self-extinguishing encapsulant prevents flame propagation in high-temperature under-hood environments. |
Applications
| Automotive Power Rail Protection | CAN Transceiver ESD Protection |
|---|---|
Use Scenario: 12V battery line in engine control units exposed to ISO 7637-2 load dump pulses up to 120V for 400ms. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤196V, preventing damage to 36V-rated input capacitors and enabling use of lower-cost 36V-input regulators. |
Use Scenario: CAN_H/CAN_L lines in body control modules subjected to IEC 61000-4-2 ±8kV contact ESD events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on CAN_H line referenced to ground, with fast sub-nanosecond response. Use Value: Prevents latch-up in CAN transceivers (e.g., TJA1042) by clamping ESD-induced overshoot before internal protection diodes activate. |
| Industrial PLC Input Protection | LIN Bus Node Protection |
Use Scenario: 24V digital input channel in programmable logic controllers exposed to inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Standoff protector on field-side input, placed ahead of optocoupler or Schmitt trigger interface. Use Value: Absorbs 500W spikes without degradation, maintaining >100k-cycle lifetime under repeated 100V/100ns transients per IEC 61000-4-4. |
Use Scenario: LIN slave node (e.g., window lift motor controller) connected to vehicle-wide LIN bus experiencing EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: Unidirectional TVS on LIN bus line, grounded at node PCB to suppress common-mode surges. Use Value: Ensures LIN physical layer remains functional after 10kV/m EFT exposure by limiting bus voltage excursion to safe levels for AS8201 or similar LIN transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110A | Same 110V VWM, but 400W PPK rating and SMA package (SMT); no AEC-Q101 qualification. | Requires rework for SMT assembly; unsuitable for under-hood automotive where AEC-Q101 and thermal robustness are mandatory. | Select SMAJ110A only for cost-sensitive industrial PCBs where AEC-Q101 is not required and space constraints favor surface mount. |
| P6SMB110AH | Same DO-15 package and AEC-Q101 qualification, but 600W PPK and higher 220V VC @ 2.73A. | Higher clamping voltage increases risk of downstream IC overstress; requires verification of protected IC's absolute maximum ratings. | Choose P6SMB110AH only if system-level testing confirms 220V clamping is acceptable and higher surge margin justifies tighter VBR tolerance. |
Compared with SMAJ110A and P6SMB110AH, the SA110CH uniquely balances AEC-Q101 compliance, DO-15 through-hole manufacturability, 196V clamping headroom, and proven 500W surge endurance - making it optimal for first-tier automotive module designs requiring zero-layout change from legacy TVS solutions.
Availability
SA110CH is available at Aetrix Electronics and suitable for automotive power rail protection, CAN/LIN bus ESD hardening, and industrial PLC input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SA110CH 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 for automotive and industrial markets.
The SA Series was developed specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing high surge robustness, tight parametric consistency, and long-term reliability under thermal cycling and humidity stress.
FAQ
What does the "H" suffix in SA110CH signify?
The "H" suffix in SA110CH indicates full AEC-Q101 qualification per Rev D, covering stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This certification is documented in Taiwan Semiconductor's official AEC-Q101 report for the SA Series, confirming SA110CH's suitability for automotive powertrain and chassis applications where reliability is mission-critical.
Is SA110CH unidirectional or bidirectional?
SA110CH is a unidirectional TVS diode, as confirmed by its single cathode band marking, absence of bidirectional electrical characteristics in the datasheet, and specification of forward voltage (VF = 3.5V @ 35A) - a parameter only defined for unidirectional devices. Its breakdown and clamping behavior apply only in reverse bias; forward conduction is limited to surge current paths during abnormal conditions.
What is the maximum clamping voltage of SA110CH and at what current is it measured?
The maximum clamping voltage of SA110CH is 196 V, measured at 2.6 A peak pulse current (IPPM) under the standard 10/1000μs double-exponential waveform. This value is specified in the "Maximum clamping voltage VC@IPPM" row of the SA Series datasheet Table for SA110A/SA110CH, and represents the worst-case voltage imposed on protected circuitry during a 500W transient event.
Can SA110CH be used in place of SA110A?
Yes - SA110CH is the AEC-Q101 qualified version of SA110A, sharing identical electrical parameters (VWM = 110 V, VBR = 122–149 V, VC = 196 V @ 2.6 A) and DO-204AC package. The only difference is the added automotive qualification; SA110CH may be substituted for SA110A in any design, but SA110A cannot replace SA110CH in AEC-Q101–mandated applications without requalification.
What is the junction-to-lead thermal resistance (RθJL) of SA110CH?
Taiwan Semiconductor does not publish RθJL for SA110CH in the provided documentation. However, the datasheet specifies steady-state power dissipation (PD) of 3 W at TL = 75°C with 9.5mm lead lengths, implying an effective RθJL ≈ 15.7°C/W based on ΔT = (TJ max − TL) = 100°C and PD = 3 W. This value aligns with typical DO-15 packaged TVS diodes and supports thermal design for continuous 12V rail protection with adequate copper pad area.
SA110CH 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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 196V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- 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)
SA110CH FAQ
1.How can I place an order for SA110CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA110CH 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 SA110CH reliable?
The price and inventory of SA110CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA110CH is usually 5 days.
3.What payment methods are accepted for SA110CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA110CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA110CH?
SA110CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA110CH 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 SA110CH?
For technical support, including SA110CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA110CH requirements.
6.How does Aetrix verify that SA110CH is sourced from the original manufacturer or authorized distributors?
All SA110CH 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 SA110CH meets industry standards.
7.What is the process for return or replacement of SA110CH?
All SA110CH units undergo pre-shipment inspection (PSI). If there is an issue with SA110CH, 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 SA110CH part is unused and in its original packaging.
Return procedure for SA110CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA110CH Tags
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