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Taiwan Semiconductor Corporation SA110CA
- Part No.:
- SA110CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA110CA.pdf
- Description:
- TVS DIODE 110VWM 177VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,786
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Product details
Overview
SA110CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, with 110V working stand-off voltage (VWM), 122–149V breakdown voltage (VBR), and 177V clamping voltage (VC) at 2.9A peak pulse current. It protects automotive and industrial control circuits against ESD and inductive switching transients.
For engineers reviewing the SA110CA datasheet, SA110CA pinout, SA110CA application, or SA110CA equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (indicated by 'H' suffix; SA110CA is not H-suffixed but CA denotes bidirectional), DO-15 mechanical compatibility, and thermal derating above 25°C per Fig.2.
Technical Context
The SA110CA operates as a silicon avalanche diode designed for unidirectional or bidirectional transient suppression depending on marking and internal structure - the 'CA' suffix explicitly denotes bidirectional configuration per SA Series documentation. Its clamping action begins within 5.0ns of transient onset, with low dynamic impedance ensuring rapid voltage limiting during fast-rising surges such as EFT or ISO 7637-2 pulses.
It exhibits a maximum reverse leakage current of 1μA at 110V VWM and a temperature coefficient of VBR ≤133mV/°C. Junction temperature range spans –55°C to +175°C, supporting under-hood automotive environments when mounted per JEDEC standard pad layout (10×10 mm copper).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous DC or RMS voltage the device blocks without conduction |
| VBR min/max | 122 V / 149 V @ 1 mA - Breakdown initiates within this range, defining turn-on threshold tolerance |
| VC @ IPPM | 177 V @ 2.9 A - Clamped voltage during 10/1000μs surge, directly limiting downstream IC stress |
| PPK | 500 W - Peak pulse power handling per single non-repetitive 10/1000μs waveform |
| TJ max | +175 °C - Maximum junction temperature enabling operation in high-ambient engine bay locations |
| IR @ VWM | <1 μA - Minimal leakage ensures negligible standby power loss in always-on systems |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 0.400 g mass and UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical glass-passivated body, cathode band marking for unidirectional variants; SA110CA is bidirectional and therefore has no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | Either terminal serves as input/output - no polarity dependency; connects across protected line and ground or between differential lines |
| Lead 1 / Lead 2 | Surge current conduction path | Carries full 2.9A peak pulse current during clamping; requires ≥9.5 mm lead length for 3W steady-state dissipation rating |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC lines or differential buses (e.g., CAN, RS-485) without external polarity management |
| 5.0 ns response time | Ensures suppression activation before nanosecond-scale ESD events damage sensitive gate oxides |
| AEC-Q101 qualified option available | SA110CA itself is not AEC-Q101 certified ('H' suffix required), but identical electrical specs support drop-in qualification upgrade path |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment |
| 175°C junction rating | Supports placement near heat sources in automotive ECUs without thermal derating penalties beyond datasheet curves |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery rail in engine control unit exposed to load dump and jump-start transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDOs and microcontrollers. Use Value: Limits transient voltage to ≤177V, preventing latch-up or permanent damage to 3.3V/5V logic rails downstream. | Use Scenario: 24V analog input channel on PLC I/O module subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Front-end TVS shunting surge energy before signal conditioning op-amps and ADCs. Use Value: Sub-5ns response ensures clamping occurs prior to 15kV contact ESD event propagation into precision front-end circuitry. |
| LED Driver Output Protection | RS-485 Bus Transient Suppression |
Use Scenario: Constant-current LED driver output driving long cables in commercial lighting, subject to capacitive coupling and lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS connected between output and chassis ground to absorb both positive and negative polarity transients. Use Value: Symmetrical 122–149V VBR enables equal clamping in either direction, eliminating need for dual unidirectional devices. | Use Scenario: Two-wire RS-485 data bus in factory automation environment with frequent cable hot-plug and EFT exposure. IC Role / Device Role / Timing Role: Differential-mode TVS placed across A/B lines to suppress common-mode surges without disrupting DC bias. Use Value: 177V VC ensures bus voltage remains within ±200V common-mode limit defined in TIA-485-A, preserving receiver integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Same VWM (110V), same bidirectional configuration, but SMB package (surface-mount); 600W PPK rating | Requires PCB rework for SMT assembly; unsuitable for through-hole legacy designs | Select SMBJ110CA only when board space constraints favor SMT and higher surge margin is needed |
| P6KE110CA | Same VWM/VBR/VC specs, DO-15 package, but 600W PPK and higher IR (5μA @ VWM) | Higher leakage may affect ultra-low-power sensor nodes; identical mechanical fit allows direct replacement | Choose P6KE110CA if 600W surge headroom is required and leakage sensitivity is not critical |
Compared with SA110CA, SMBJ110CA offers higher surge rating and SMT compatibility but demands layout change, while P6KE110CA provides identical through-hole form factor with increased PPK and slightly higher leakage - both serve as functional alternatives where exact SA-series sourcing is constrained.
Availability
SA110CA is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and LED lighting applications requiring stable component supply and consistent DO-15 mechanical fit.
Supply support for SA110CA 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 Company (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for industrial and automotive markets.
The SA Series was developed specifically for robust, cost-effective transient protection in harsh environments - emphasizing high-temperature reliability, low clamping ratio, and AEC-Q101-ready variants for automotive subsystems.
FAQ
What does the 'CA' suffix indicate in SA110CA?
The 'CA' suffix in SA110CA denotes a bidirectional transient voltage suppressor configuration, meaning the device clamps voltage surges of either polarity symmetrically across its terminals. Unlike unidirectional SA110A (which has anode/cathode polarity), SA110CA has no polarity marking and functions identically regardless of terminal orientation - essential for AC line or differential bus protection.
Is SA110CA AEC-Q101 qualified?
No, SA110CA is not AEC-Q101 qualified. Per Taiwan Semiconductor's ordering information, AEC-Q101 qualification is indicated by an 'H' suffix (e.g., SA110CAH). SA110CA shares identical electrical specifications and DO-15 packaging with qualified variants, but formal qualification testing and certification apply only to H-suffixed parts.
What is the maximum clamping voltage of SA110CA and at what test condition?
The maximum clamping voltage (VC) of SA110CA is 177 V, measured at a peak pulse current (IPPM) of 2.9 A under the standard 10/1000 μs double-exponential surge waveform. This value is guaranteed across the operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
Can SA110CA replace SA110A in a design?
No - SA110CA and SA110A are not interchangeable without circuit review. SA110A is unidirectional (cathode-banded) and intended for DC line protection; SA110CA is bidirectional and lacks polarity marking. Substituting SA110CA for SA110A on a DC rail introduces unintended conduction paths and may compromise protection integrity or cause malfunction.
What is the thermal derating behavior of SA110CA above 25°C ambient?
SA110CA's peak pulse power (PPK) must be derated linearly above 25°C ambient per Figure 2 in the datasheet: at 75°C TA, PPK drops to ~70% of 500W (~350W); at 125°C TA, it falls to ~40% (~200W). Steady-state power dissipation (PD) remains 3W only when leads are mounted on 10×10 mm copper pads - smaller pads accelerate thermal limitation.
SA110CA 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:
- 177V
- 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)
SA110CA FAQ
1.How can I place an order for SA110CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA110CA 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 SA110CA reliable?
The price and inventory of SA110CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA110CA is usually 5 days.
3.What payment methods are accepted for SA110CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA110CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA110CA?
SA110CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA110CA 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 SA110CA?
For technical support, including SA110CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA110CA requirements.
6.How does Aetrix verify that SA110CA is sourced from the original manufacturer or authorized distributors?
All SA110CA 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 SA110CA meets industry standards.
7.What is the process for return or replacement of SA110CA?
All SA110CA units undergo pre-shipment inspection (PSI). If there is an issue with SA110CA, 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 SA110CA part is unused and in its original packaging.
Return procedure for SA110CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA110CA Tags
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onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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