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Taiwan Semiconductor Corporation SA150CAH
- Part No.:
- SA150CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA150CAH.pdf
- Description:
- TVS DIODE 150VWM 243VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,622
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Product details
Overview
SA150CAH from Taiwan Semiconductor is a bidirectional AEC-Q101-qualified transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, designed for automotive and industrial surge protection. It features a 150 V working stand-off voltage (VWM), 167–204 V breakdown voltage (VBR), 268 V maximum clamping voltage (VC) at 1.9 A peak pulse current, and 500 W peak pulse power rating at 10/1000 µs waveform.
For engineers reviewing the SA150CAH datasheet, SA150CAH pinout, SA150CAH application, or SA150CAH equivalent, key selection criteria include bidirectional ESD/transient immunity compliance, AEC-Q101 qualification for automotive use, DO-15 mechanical compatibility, and clamping performance under IEC 61000-4-2/4-4/4-5 stress conditions.
Technical Context
The SA150CAH operates as a bidirectional avalanche diode, conducting symmetrically in both polarities above its breakdown threshold to clamp transient overvoltages. Its low dynamic impedance ensures rapid energy diversion during fast-rising transients such as EFT (IEC 61000-4-4) and surge (IEC 61000-4-5), with sub-nanosecond response time (<5 ns) from 0 V to VBR.
Designed for unclamped system-level protection, it sustains repetitive surges only within derated limits per Fig.2, with junction temperature rated from –55 °C to +175 °C and thermal resistance (RθJL) optimized for 10 × 10 mm copper pad mounting. The device exhibits <1 µA reverse leakage at 150 V and a 203 mV/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous DC or RMS voltage the device blocks without conduction |
| VBR min/max | 167 / 204 V @ 1 mA - Breakdown occurs within this range, defining turn-on threshold tolerance |
| VC @ IPPM | 268 V @ 1.9 A - Clamped voltage during 10/1000 µs surge, limiting downstream circuit stress |
| PPK | 500 W - Peak transient power dissipation capability under standardized surge waveform |
| IR @ VWM | <1 µA - Negligible leakage current at operating voltage, minimizing standby power loss |
| TJ max | +175 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronic components (HTOL, TC, HAST, etc.) |
Pinout & Package
SA150CAH is housed in a DO-204AC (DO-15) axial-leaded package with cathode band marking omitted due to bidirectional symmetry; terminals are non-polarized 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 | Bidirectional avalanche junction | Identical electrical behavior in either direction; no polarity marking required |
| Lead 1 / Lead 2 | Surge current path | Leads conduct full IPPM (1.9 A) during clamping; require ≥9.5 mm lead length for PD = 3 W rating |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including high-temp operating life and temperature cycling |
| 500 W 10/1000 µs surge rating | Withstands industry-standard lightning/surge pulses without degradation when mounted per spec |
| <5 ns response time (bidirectional) | Clamps transients before sensitive ICs experience overvoltage damage |
| DO-204AC (DO-15) package | Industry-standard through-hole footprint compatible with legacy PCB layouts and automated insertion |
| RoHS & halogen-free | Complies with environmental regulations and flammability standard UL 94V-0 |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN/CAN bus power rails and microcontroller supply inputs against load dump and jump-start transients in passenger vehicles. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed between battery rail and LDO input to limit voltage excursion during ISO 7637-2 Pulse 5a/b events. Use Value: Clamps to ≤268 V while absorbing 500 W surge energy, preventing LDO overvoltage failure and ensuring MCU reset integrity. | Use Scenario: Shielding analog sensor front-ends (e.g., pressure, temperature) connected to long cables in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional shunt protector across differential signal lines or supply-to-ground to suppress EFT bursts and capacitive coupling noise. Use Value: Sub-5 ns response and symmetric clamping prevent signal distortion and ADC saturation during 4 kV EFT (IEC 61000-4-4) events. |
| LED Driver Overvoltage Suppression | Smart Meter AC Input Protection |
Use Scenario: Safeguarding constant-current LED drivers from inductive kickback and grid surge coupling in streetlight applications. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output to clamp flyback spikes generated by relay switching or cable disconnect. Use Value: 268 V clamping voltage ensures LED string remains below absolute maximum ratings even during 100 A surge events. | Use Scenario: Protecting metering SoCs and isolation barriers from mains-borne surges (e.g., lightning-induced) on 230 V AC input stages. IC Role / Device Role / Timing Role: Primary-stage bidirectional TVS placed line-to-neutral and line-to-ground to divert surge energy before rectification and regulation. Use Value: 150 V VWM allows reliable blocking of 230 V RMS AC peaks while clamping 10/1000 µs surges to safe levels for downstream MOVs and ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ150CA | Same DO-214AC package; 268 V VC @ 1.9 A; identical VWM/VBR range; RoHS/halogen-free | Widely used in industrial power supplies; lacks explicit AEC-Q101 documentation in public datasheet | Preferred where AEC-Q101 is not mandated and DO-214AC SMT layout is available |
| ON Semiconductor 1.5SMC150CA | DO-214AB package; 268 V VC @ 1.9 A; same electrical specs; AEC-Q101 qualified per manufacturer claim | Higher thermal resistance than DO-15; requires larger PCB area; suited for higher-volume SMT production | Select when SMT assembly is preferred and board space permits larger footprint |
Compared with SMAJ150CA and 1.5SMC150CA, SA150CAH offers identical clamping and surge performance in the smaller DO-15 through-hole package with certified AEC-Q101 qualification-making it optimal for cost-sensitive, space-constrained automotive modules requiring proven reliability.
Availability
SA150CAH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED lighting control, and smart metering applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for SA150CAH 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 automotive, industrial, and consumer markets.
The SA Series was developed specifically for robust, high-reliability transient suppression in harsh environments-emphasizing AEC-Q101 qualification, tight parameter tolerances, and consistent clamping performance across temperature.
FAQ
What does the "H" suffix in SA150CAH signify?
The "H" suffix in SA150CAH indicates formal AEC-Q101 qualification per the latest revision of the standard. This certification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing-ensuring suitability for automotive under-hood and chassis applications where reliability is critical. SA150CAH is not merely compliant but fully qualified, with test reports available upon request.
Is SA150CAH unidirectional or bidirectional, and how is polarity marked?
SA150CAH is a bidirectional TVS diode, meaning it provides symmetrical clamping for positive and negative transients. Unlike unidirectional SA150A variants, it has no cathode band or polarity marking-both leads are functionally identical. This eliminates orientation errors during manual or automated assembly and simplifies design for AC-coupled or floating signal paths where voltage polarity reverses.
What is the maximum clamping voltage of SA150CAH under standard surge conditions?
The maximum clamping voltage (VC) of SA150CAH is 268 V when subjected to a 10/1000 µs surge waveform at its rated peak pulse current of 1.9 A. This value is measured per ANSI/IEEE C62.35 and represents the upper bound of voltage seen by protected circuitry during worst-case transient events-critical for verifying margin against downstream IC absolute maximum ratings.
Can SA150CAH replace SA150A in an existing design?
No-SA150CAH and SA150A are not interchangeable. SA150A is unidirectional with a cathode band and forward voltage drop (~3.5 V), while SA150CAH is bidirectional with no polarity and symmetric characteristics. Substituting SA150CAH for SA150A would eliminate intended DC blocking in unidirectional configurations and may cause unintended conduction in bias networks. Always verify circuit topology before replacement.
What packaging options are available for SA150CAH?
SA150CAH is supplied in tape-and-reel format: 3,500 units per reel (ordering code SA150CAH). Ammo box packaging (1,500 units) is also available under ordering code SA150CAHA0G. Both options use DO-204AC (DO-15) axial-leaded carriers with pure tin-plated leads compliant with J-STD-002 solderability requirements and JESD 201 Class 2 whisker resistance.
SA150CAH 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:
- -
- 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)
SA150CAH FAQ
1.How can I place an order for SA150CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA150CAH 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 SA150CAH reliable?
The price and inventory of SA150CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA150CAH is usually 5 days.
3.What payment methods are accepted for SA150CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA150CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA150CAH?
SA150CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA150CAH 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 SA150CAH?
For technical support, including SA150CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA150CAH requirements.
6.How does Aetrix verify that SA150CAH is sourced from the original manufacturer or authorized distributors?
All SA150CAH 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 SA150CAH meets industry standards.
7.What is the process for return or replacement of SA150CAH?
All SA150CAH units undergo pre-shipment inspection (PSI). If there is an issue with SA150CAH, 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 SA150CAH part is unused and in its original packaging.
Return procedure for SA150CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA150CAH Tags
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