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Taiwan Semiconductor Corporation SA150CA
- Part No.:
- SA150CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA150CA.pdf
- Description:
- TVS DIODE 150VWM 243VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,154
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Product details
Overview
SA150CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 150 V working stand-off voltage, 167–204 V breakdown voltage at 1 mA test current, and 500 W peak pulse power at 10/1000 μs waveform. It delivers clamping voltage of 268 V at 1.9 A peak pulse current and operates from –55 °C to +175 °C junction temperature, used for ESD and surge protection in automotive lighting control modules.
For engineers reviewing the SA150CA datasheet, SA150CA pinout, SA150CA application, or SA150CA equivalent, key selection criteria include bidirectional clamping performance at 150 V VWM, low leakage (<1 μA @ 150 V), AEC-Q101 qualification, DO-15 mechanical compatibility, and thermal derating behavior above 25 °C ambient.
Technical Context
The SA150CA is a silicon avalanche diode designed for bidirectional transient suppression, with symmetrical electrical characteristics in both polarities. Its breakdown voltage range (167–204 V) and clamping voltage (268 V @ 1.9 A) are specified per ANSI/IEEE C62.35, and it exhibits fast response time (<5.0 ns for bidirectional operation).
It supports unidirectional forward surge current up to 70 A (8.3 ms half-sine), though SA150CA itself is bidirectional and does not conduct steady forward current. Thermal performance is defined with 3 W steady-state power dissipation on 10 × 10 mm copper pads at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 167 / 204 V @ 1 mA - Validated avalanche onset range ensuring consistent turn-on across production lot |
| VC @ IPPM | 268 V @ 1.9 A - Clamped voltage during 10/1000 μs surge, defining protected circuit's maximum overvoltage exposure |
| PPK | 500 W - Peak pulse power handling capability under standardized 10/1000 μs waveform |
| IR @ VWM | <1 μA - Reverse leakage at rated stand-off voltage, minimizing standby power loss in high-impedance circuits |
| TJ max | +175 °C - Maximum junction temperature enabling use in under-hood automotive environments |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 0.400 g mass and UL 94V-0 molding compound |
Pinout & Package
SA150CA is a two-terminal bidirectional TVS diode in DO-204AC (DO-15) package. No polarity marking; terminals are functionally identical and interchangeable. 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/Cathode (symmetrical) | Transient conduction path | Both terminals serve as bidirectional surge current entry/exit points; no DC polarity dependency |
| Leads (axial) | PCB interconnect interface | 0.51 mm diameter tinned copper leads, 25.4 mm standard lead spacing, compatible with through-hole assembly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC specification |
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for orientation-aware placement on PCB |
| Low clamping ratio | VC/VBR ≈ 1.54 - ensures tight voltage limiting relative to breakdown threshold for sensitive downstream ICs |
| Fast transient response | <5.0 ns response time - enables protection against nanosecond-scale EFT and ESD events |
| Halogen-free construction | Complies with IEC 61249-2-21 - supports RoHS-compliant and environmentally regulated end equipment |
Applications
| Automotive LED Headlamp Driver Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects LED driver ICs and MOSFETs from load-dump transients and inductive kickback in 12 V/24 V vehicle lighting systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to clamp ±100 V surges within 5 ns. Use Value: Enables compliance with ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-4 EFT immunity requirements without additional filtering. | Use Scenario: Shields 24 V digital input channels in programmable logic controllers from field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Standoff device between field-side signal and isolated input buffer, absorbing >500 W transients. Use Value: Maintains <1 μA leakage at 24 V nominal, preventing false triggering while surviving repeated 1 kV EFT bursts. |
| Smart Building Occupancy Sensor Interface | EV Onboard Charger Communication Line Protection |
Use Scenario: Safeguards PIR sensor signal conditioning circuitry and microcontroller GPIOs from electrostatic discharge during installation/maintenance. IC Role / Device Role / Timing Role: Bidirectional shunt element on analog output line (0–10 V or 4–20 mA loop), clamping ESD to <268 V. Use Value: Achieves IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) immunity without degrading signal integrity due to low capacitance. | Use Scenario: Protects CAN FD and auxiliary control lines in EV onboard chargers from coupled transients during AC/DC conversion switching. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated communication rails, supplementing primary front-end protection. Use Value: Withstands 175 °C junction temperature during charger thermal cycling, ensuring long-term reliability in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A | Unidirectional; 150 V VWM, 243 V VC @ 2.1 A; SMA package (surface-mount) | Requires polarity-aware layout; lower thermal mass limits sustained surge duty cycle | Select when board space is constrained and unidirectional protection suffices |
| P6SMB150CA | Bidirectional; 150 V VWM, 243 V VC @ 2.1 A; DO-214AA (SMB) package | Higher IFSM (100 A vs. 70 A), but larger footprint and different lead form factor | Select when higher forward surge rating is required and DO-15 lead spacing is not mandatory |
Compared with SMAJ150A and P6SMB150CA, the SA150CA offers AEC-Q101 qualification, DO-15 through-hole compatibility for high-reliability mechanical retention, and verified 175 °C junction operation-making it preferred for automotive under-hood and industrial control applications where vibration resistance and thermal margin are critical.
Availability
SA150CA is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC input modules, smart building sensor interfaces, and EV onboard charger communication protection requiring stable component supply and long-term lifecycle support.
Supply support for SA150CA 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, rectifiers, and MOSFETs, with global distribution and AEC-Q101 qualified product lines.
The SA Series was developed specifically for robust, high-energy transient suppression in automotive and industrial environments, emphasizing bidirectional symmetry, high-temperature operation, and mechanical reliability in axial-leaded packages.
FAQ
What is the clamping voltage of SA150CA at its rated peak pulse current?
The SA150CA has a maximum clamping voltage (VC) of 268 V at 1.9 A peak pulse current (IPPM), measured under the 10/1000 μs standard surge waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is guaranteed across the full operating temperature range of –55 °C to +175 °C.
Is SA150CA suitable for automotive applications requiring AEC-Q101 qualification?
Yes, SA150CA is explicitly AEC-Q101 qualified per the manufacturer's documentation. It undergoes stress testing including high-temperature reverse bias (HTRB), temperature cycling, and ESD per AEC-Q101 Rev D, making it appropriate for under-hood and body-control module applications where reliability under thermal and mechanical stress is mandatory.
How does the bidirectional nature of SA150CA affect PCB layout and circuit design?
The SA150CA is fully symmetrical: both terminals perform identically in either polarity, eliminating orientation constraints during placement. This simplifies layout, avoids polarity-related assembly errors, and allows direct integration across differential or floating signal paths without concern for anode/cathode assignment-unlike unidirectional TVS diodes such as SA150A.
What is the maximum steady-state power dissipation rating for SA150CA?
The SA150CA has a steady-state power dissipation (PD) rating of 3 W when mounted on 10 × 10 mm copper pads per terminal at lead temperature (TL) of 75 °C. This rating applies only to continuous DC or low-frequency conditions-not transient surges-and must be thermally managed via adequate PCB copper area to avoid exceeding TJ max of +175 °C.
Does SA150CA meet halogen-free and RoHS compliance requirements?
Yes, SA150CA complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and the pure tin-plated leads meet J-STD-002 solderability standards-ensuring environmental compliance and process compatibility for lead-free reflow and wave soldering.
SA150CA 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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.1A
- 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)
SA150CA FAQ
1.How can I place an order for SA150CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA150CA 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 SA150CA reliable?
The price and inventory of SA150CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA150CA is usually 5 days.
3.What payment methods are accepted for SA150CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA150CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA150CA?
SA150CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA150CA 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 SA150CA?
For technical support, including SA150CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA150CA requirements.
6.How does Aetrix verify that SA150CA is sourced from the original manufacturer or authorized distributors?
All SA150CA 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 SA150CA meets industry standards.
7.What is the process for return or replacement of SA150CA?
All SA150CA units undergo pre-shipment inspection (PSI). If there is an issue with SA150CA, 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 SA150CA part is unused and in its original packaging.
Return procedure for SA150CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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