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Taiwan Semiconductor Corporation SA110
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- Part No.:
- SA110
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA110.pdf
- Description:
- 500W, 135.5V, UNIDIRECTIONAL, TV
- Quantity:
- Payment:
- Shipping:
Inventory:7,988
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Product details
Overview
SA110 from Taiwan Semiconductor is a unidirectional 500W transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, with 110V working stand-off voltage (VWM), 122–149V breakdown voltage (VBR), and 196V clamping voltage (VC) at 2.6A peak pulse current. It delivers fast response (<1.0ps), low leakage (<1μA), and AEC-Q101 qualification for automotive-grade surge protection.
For engineers reviewing the SA110 datasheet, SA110 pinout, SA110 application, or SA110 equivalent, this page provides verified electrical parameters, mechanical packaging details, real-world use cases in automotive and industrial systems, and validated alternative parts for ESD and inductive switching transient suppression.
Technical Context
The SA110 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (122–149V at 1mA test current). Its clamping action limits transients to ≤196V at 2.6A under 10/1000μs waveform, enabling robust protection of downstream 110V-rated circuits.
Designed for high-reliability environments, it features a maximum junction temperature of 175°C, RoHS-compliant halogen-free molding compound, and pure tin-plated leads meeting J-STD-002 solderability standards - all validated per AEC-Q101 stress testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before conduction begins; defines system voltage margin for 110V DC rails. |
| VBR @ IT=1mA | 122–149 V - Breakdown voltage range at 1mA test current; ensures reliable triggering above normal operating voltage. |
| VC @ IPPM=2.6A | 196 V - Clamping voltage during 10/1000μs surge; limits transient energy delivered to protected ICs or power stages. |
| PPK | 500 W - Peak pulse power rating at TA=25°C; supports single-event surges up to 500W without failure. |
| IR @ VWM | <1 μA - Reverse leakage at 110V; minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ MAX | 175 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
| Package | DO-204AC (DO-15) - Standard axial-leaded through-hole package with 0.400g mass; compatible with legacy PCB layouts and wave-solder processes. |
Pinout & Package
DO-204AC (DO-15) package with axial leads: cathode marked by band; anode and cathode terminals defined per polarity marking. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; carries full surge current during clamping event. |
| Cathode (banded end) | Reverse-biased terminal / Protected line connection | Connected to the 110V supply rail or signal line being protected; blocks normal operation but avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics under temperature cycling, humidity, and mechanical shock stress. |
| 500W 10/1000μs surge rating | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation in DO-15 form factor. |
| Clamping voltage ≤196V at 2.6A | Provides ≥14% voltage margin below typical 220V system derating thresholds, ensuring safe operation of 200V MOSFETs or gate drivers. |
| Response time <1.0ps | Activates faster than most microsecond-scale transients (e.g., relay bounce, inductive kick), preventing voltage overshoot before protection engages. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; suitable for environmentally regulated industrial and automotive production. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 110V DC battery-fed control modules in commercial vehicles against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 110V rail and chassis ground to clamp transients exceeding VWM before they reach MCU power inputs or CAN transceivers. Use Value: Limits peak voltage to 196V during 500W surges, preserving 200V-rated power management ICs and avoiding brownout resets in safety-critical ECUs. | Use Scenario: Safeguarding analog input channels on programmable logic controllers exposed to field-wiring induced transients from solenoid valves or motor drives. IC Role / Device Role / Timing Role: Mounted at connector interface to shunt fast-rising EFT bursts (IEC 61000-4-4) and inductive spikes before reaching precision ADC front-ends. Use Value: Sub-1μA leakage prevents measurement drift on high-impedance sensor inputs; 196V clamping protects 24-bit delta-sigma ADCs rated for ≤220V absolute max. |
| LED Streetlight Driver Protection | Telecom Power Supply Clamp |
Use Scenario: Shielding constant-current LED driver ICs in outdoor lighting from lightning-induced surges on AC mains-derived 110V DC bus. IC Role / Device Role / Timing Role: Primary surge clamp on bulk DC output stage, coordinated with MOV and fuse for staged overvoltage defense. Use Value: 500W rating handles multi-kA indirect lightning surges; DO-15 package allows direct mounting near high-voltage nodes with minimal trace inductance. | Use Scenario: Securing -48V telecom rectifier outputs against backfeed transients and hot-swap events in central office power distribution. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; SA110 serves as unidirectional clamp on positive rail relative to system ground in isolated DC-DC architectures. Use Value: 175°C TJ rating supports operation inside sealed, convection-limited telecom cabinets; 110V VWM aligns with standard -48V system derating conventions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | Surface-mount SMB package; same VWM (110V), slightly higher VC (209V at 2.4A); lower PPK (600W). | Requires PCB re-layout for SMD placement; better suited for space-constrained designs with automated assembly. | Select SMBJ110A when board area is limited and wave-solder compatibility is not required. |
| P6SMB110A | Same SMB package; identical VWM and VC specs; RoHS-compliant but not AEC-Q101 qualified. | Lacks automotive qualification; acceptable for industrial/commercial use where AEC-Q101 is not mandated. | Choose P6SMB110A for cost-sensitive non-automotive applications needing equivalent clamping performance. |
Compared with SA110, SMBJ110A offers higher surge power in smaller footprint but requires rework for through-hole legacy systems, while P6SMB110A matches key electrical specs but omits AEC-Q101 validation - making SA110 the only option for automotive-grade reliability in axial-leaded form.
Availability
SA110 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, LED driver protection, and telecom power rail stabilization requiring stable component supply across long production lifecycles.
Supply support for SA110 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 certification capability.
The SA Series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robustness, tight parameter tolerances, and compliance with ISO 7637 and IEC 61000-4-x immunity standards.
FAQ
What is the maximum clamping voltage of SA110 under standard 10/1000μs surge conditions?
The SA110 has a maximum clamping voltage (VC) of 196 V when subjected to a 10/1000μs waveform at its rated peak pulse current of 2.6 A. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during real-world transients such as load dump or inductive switching. The SA110 maintains this clamping performance across its specified operating temperature range.
Is SA110 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the SA110 is AEC-Q101 qualified when ordered with the "H" suffix (e.g., SA110H), confirming compliance with stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life. The base SA110 part meets all electrical and thermal specifications required for automotive use, and TSC documentation explicitly lists AEC-Q101 qualification as available for the SA Series - including SA110 - in Version L2105 of the datasheet.
What is the reverse leakage current of SA110 at its working stand-off voltage?
The SA110 exhibits a maximum reverse leakage current (IR) of 1 μA when biased at its working stand-off voltage (VWM) of 110 V and tested at TA = 25°C. This ultra-low leakage ensures minimal power loss in always-on systems and prevents false triggering in high-impedance sensing circuits. The SA110 maintains IR < 1 μA across its full operating temperature range, supporting stable performance in demanding environments.
Does SA110 have bidirectional capability, or is it strictly unidirectional?
The SA110 is a unidirectional TVS diode, designed for protection of positive-polarity DC lines. Its datasheet specifies breakdown voltage (VBR) and clamping behavior only for reverse-biased operation, with polarity indicated by a cathode band. For bidirectional protection, TSC offers the SA110A variant - which shares the same VWM and VBR range but is symmetrically rated for both polarities - or dedicated CA-suffix parts in the SA Series.
What package type and lead finish does SA110 use, and is it compatible with standard wave-solder processes?
The SA110 uses the DO-204AC (DO-15) axial-leaded package with pure tin-plated leads that comply with J-STD-002 for solderability. Its 0.400g mass and lead geometry are optimized for traditional wave-soldering, and the molding compound meets UL 94V-0 flammability rating. This makes SA110 fully compatible with legacy through-hole assembly lines and eliminates need for reflow profile adaptation.
SA110 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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA110 FAQ
1.How can I place an order for SA110 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA110 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 SA110 reliable?
The price and inventory of SA110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA110 is usually 5 days.
3.What payment methods are accepted for SA110?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA110 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA110?
SA110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA110 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 SA110?
For technical support, including SA110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA110 requirements.
6.How does Aetrix verify that SA110 is sourced from the original manufacturer or authorized distributors?
All SA110 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 SA110 meets industry standards.
7.What is the process for return or replacement of SA110?
All SA110 units undergo pre-shipment inspection (PSI). If there is an issue with SA110, 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 SA110 part is unused and in its original packaging.
Return procedure for SA110:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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