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Taiwan Semiconductor Corporation SA110CAH
- Part No.:
- SA110CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA110CAH.pdf
- Description:
- TVS DIODE 110VWM 177VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,022
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Product details
Overview
SA110CAH 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 196V maximum clamping voltage (VC) at 2.6A peak pulse current. It protects automotive-grade power and signal lines against ESD, EFT, and inductive switching transients.
For engineers reviewing the SA110CAH datasheet, SA110CAH pinout, SA110CAH application, or SA110CAH equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, sub-5ns response time, <1μA reverse leakage at 110V, and robust 175°C junction temperature rating - critical for under-hood and ADAS power rail protection.
Technical Context
The SA110CAH is a silicon avalanche diode designed for unidirectional or bidirectional transient suppression in DC power and signal paths. Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating systems without polarity constraints, and its low dynamic impedance ensures consistent voltage limiting during fast-rising transients up to 500W.
It operates across –55°C to +175°C, supports 8.3ms surge currents up to 70A (IFSM), and maintains stable VBR temperature coefficient of ±148 mV/°C - enabling predictable performance in thermally aggressive automotive environments where thermal derating must be precisely modeled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous DC or RMS voltage the device blocks without clamping; defines safe operating margin below breakdown. |
| VBR min/max | 122 V / 149 V @ 1 mA - Verified avalanche onset range; ensures reliable triggering before downstream IC damage thresholds. |
| VC @ IPPM | 196 V @ 2.6 A - Clamped voltage during 10/1000μs surge; limits stress on protected 12V/24V system components. |
| PPK | 500 W - Peak non-repetitive surge power handling per IEEE C62.35; validates compliance with ISO 7637-2 Pulse 1/2/5a. |
| IR @ VWM | <1 μA - Negligible standby leakage at rated stand-off; avoids battery drain in always-on automotive modules. |
| TJ max | +175 °C - Enables placement near high-temperature sources (e.g., engine control units, power converters) without thermal shutdown. |
| Response time | <5.0 ns - Time from 0 V to VBR under bidirectional surge; preserves signal integrity in CAN/LIN bus protection. |
Pinout & Package
SA110CAH is housed in a DO-204AC (DO-15) axial-leaded package with cathode band marking for unidirectional variants; as a bidirectional device (denoted by "C" suffix), it has no polarity marking and functions identically in either orientation. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (bidirectional) | Accepts transient energy from either direction; connects to line being protected (e.g., CAN_H or power rail). |
| Cathode | Surge current return (bidirectional) | Completes low-impedance path to ground or reference; symmetric with anode for bipolar operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use per stress test requirements including HTOL, TC, UHAST, and mechanical shock. |
| Bidirectional clamping | Enables single-device protection of AC-coupled buses (e.g., CAN FD differential pair) without external polarity management. |
| 500W 10/1000μs rating | Meets ISO 7637-2 Level IV immunity requirements for 12V/24V vehicle networks with minimal layout area. |
| <5 ns response time | Clamps transients faster than typical microcontroller I/O pin ESD tolerance windows, preventing latch-up or gate oxide damage. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and automotive ELV directive; supports lead-free reflow and end-of-life recycling mandates. |
Applications
| Automotive Power Rail Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12V/24V supply inputs of body control modules (BCM), lighting drivers, and ADAS ECUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between input fuse and DC-DC converter input, absorbing ISO 7637-2 Pulse 5a surges up to 100V/100ms. Use Value: Limits voltage excursion to ≤196V during 500W transients, preventing damage to upstream LDOs and buck controllers rated for 36V absolute max. | Use Scenario: Safeguarding high-speed CAN FD transceivers (e.g., TJA1044) against ESD (IEC 61000-4-2 ±8kV contact) and EFT (IEC 61000-4-4 ±2kV). IC Role / Device Role / Timing Role: Bidirectional shunt element across CAN_H/CAN_L differential pair, clamping common-mode transients while preserving signal integrity. Use Value: Sub-5ns response ensures clamping occurs before transceiver input stages experience destructive overvoltage, maintaining bit error rate (BER) compliance. |
| Industrial Sensor Interface Protection | LED Driver Surge Mitigation |
Use Scenario: Shielding 4–20mA current-loop sensors and RS-485 nodes in factory automation from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Line-to-ground TVS on each signal conductor, placed adjacent to connector to minimize inductance before clamping. Use Value: 196V clamping voltage prevents exceedance of RS-485 transceiver common-mode range (±12V to ±15V), avoiding false triggering or receiver saturation. | Use Scenario: Protecting constant-current LED drivers in streetlight and automotive headlamp systems from inductive kickback during MOSFET switching. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output terminals, diverting flyback energy from inductive loads (e.g., solenoids, relays). Use Value: 500W surge rating handles repetitive 100V/10ms spikes without degradation, extending driver IC lifetime in harsh switching environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110CA | Same 110V VWM, 500W rating, but SMA package (surface-mount); lower thermal mass and higher board density. | Preferred for space-constrained PCBs; requires reflow-compatible layout and lacks axial lead mechanical robustness. | Select SMAJ110CA when automated assembly and footprint reduction outweigh axial lead serviceability needs. |
| P6SMB110CA | Identical electrical specs and DO-214AA (SMB) package; slightly larger footprint than DO-15 but higher IPC-rated creepage. | Better suited for industrial mains-connected equipment requiring reinforced insulation spacing. | Choose P6SMB110CA for UL/IEC 62368-1 certified AC/DC front-ends where creepage >5.0mm is mandated. |
Compared with SMAJ110CA and P6SMB110CA, the SA110CAH provides identical clamping performance in a legacy-qualified DO-15 through-hole package optimized for manual repair, high-vibration mounting, and proven field reliability in automotive harness interfaces.
Availability
SA110CAH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and LED driver designs requiring stable component supply with AEC-Q101 qualification and long-term lifecycle assurance.
Supply support for SA110CAH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power MOSFETs since 1979.
The SA Series was developed specifically for automotive-grade transient suppression, emphasizing AEC-Q101 qualification, high-temperature stability, and repeatable clamping performance across extended voltage ranges (5V–170V).
FAQ
What does the "C" and "H" suffix in SA110CAH indicate?
The "C" denotes bidirectional configuration - meaning SA110CAH clamps transients equally in both directions, unlike unidirectional "A" variants. The "H" confirms full AEC-Q101 qualification, including temperature cycling, humidity testing, and high-temperature operating life validation. This makes SA110CAH suitable for automotive powertrain and chassis applications where reliability under thermal stress is mandatory.
Can SA110CAH replace SA110A in an existing design?
No - SA110A is unidirectional with cathode marking and asymmetric clamping behavior, while SA110CAH is bidirectional with no polarity marking. Swapping them risks improper clamping on AC-coupled lines or failure to protect reverse-polarity surges. SA110CAH must be used only where bidirectional protection is explicitly required and layout accommodates non-polarized placement.
What is the maximum clamping voltage of SA110CAH under standard test conditions?
The maximum clamping voltage (VC) of SA110CAH is 196 V, measured at 2.6 A peak pulse current using the 10/1000μs waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range (–55°C to +175°C) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is SA110CAH compatible with lead-free reflow soldering processes?
Yes - SA110CAH features pure tin-plated leads compliant with J-STD-002 and rated for standard lead-free reflow profiles (peak temperature ≤260°C). Its DO-204AC package withstands thermal cycling without delamination, and the molding compound meets UL 94V-0 flammability requirements for high-reliability assemblies.
How does SA110CAH perform under repeated surge stress?
SA110CAH is rated for non-repetitive surges per Fig.3 in the datasheet; repeated application of 500W pulses requires derating per Fig.2. At 25°C ambient, it sustains one 10/1000μs pulse; at 75°C, peak power drops to ~350W. For cyclic surge environments (e.g., motor commutation), designers must verify thermal dissipation using the 3W steady-state power rating at TL = 75°C with specified copper pad layout.
SA110CAH 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:
- -
- 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)
SA110CAH FAQ
1.How can I place an order for SA110CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA110CAH 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 SA110CAH reliable?
The price and inventory of SA110CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA110CAH is usually 5 days.
3.What payment methods are accepted for SA110CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA110CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA110CAH?
SA110CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA110CAH 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 SA110CAH?
For technical support, including SA110CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA110CAH requirements.
6.How does Aetrix verify that SA110CAH is sourced from the original manufacturer or authorized distributors?
All SA110CAH 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 SA110CAH meets industry standards.
7.What is the process for return or replacement of SA110CAH?
All SA110CAH units undergo pre-shipment inspection (PSI). If there is an issue with SA110CAH, 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 SA110CAH part is unused and in its original packaging.
Return procedure for SA110CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA110CAH Tags
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