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Taiwan Semiconductor Corporation SMCJ150CAH
- Part No.:
- SMCJ150CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150CAH.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,216
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Product details
Overview
SMCJ150CAH from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 150V working stand-off voltage (VWM), 167–185V breakdown voltage (VBR), and 243V maximum clamping voltage (VC) at 6.4A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients and ESD.
For engineers reviewing the SMCJ150CAH datasheet, SMCJ150CAH pinout, SMCJ150CAH application, or SMCJ150CAH equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, clamping performance under 10/1000μs surge, thermal resistance (RθJC = 10°C/W), and bidirectional conduction behavior critical for robust front-end protection design.
Technical Context
The SMCJ150CAH uses a glass-passivated silicon junction to achieve fast response (<1.0 ps from 0 V to VBR min) and low leakage (<1 μA at 150 V). Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating bus lines without polarity dependency.
Designed for automotive-grade reliability, it meets AEC-Q101 stress testing and ISO 7637-2 pulse immunity requirements across all five defined test waveforms - including load dump (Pulse 2b), supply interruption (Pulse 3b), and coupled transients (Pulse 1/2a/3a) - with junction temperature range of –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 167 V / 185 V @ 1 mA - Confirmed breakdown threshold ensures predictable turn-on margin above VWM |
| VC @ IPPM | 243 V @ 6.4 A - Clamping voltage during 10/1000 μs surge defines worst-case overvoltage seen by downstream circuitry |
| PPK | 1500 W - Peak pulse power rating determines survivability under standardized transient energy bursts |
| RθJC | 10 °C/W - Low junction-to-case thermal resistance supports reliable power dissipation in high-ambient environments |
| IR @ VWM | <1 μA - Ultra-low reverse leakage minimizes standby power loss and signal integrity impact |
| TJ max | +150 °C - Extended junction temperature rating enables operation in under-hood automotive locations |
Pinout & Package
DO-214AB (SMC) surface-mount package with matte tin-plated leads; polarity indicated by cathode band (not applicable for bidirectional SMCJ150CAH - terminals are symmetric).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient current path | Both terminals conduct identically during positive or negative surges - no polarity orientation required on PCB |
| Case | Thermal interface | Exposed metal slug provides primary heat path to PCB copper; requires thermal pad for RθJA derating control |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test conditions including HTOL, TC, UHAST, and ESD-HBM/MM |
| ISO 7637-2 compliance | Passes all five standard vehicle transient pulses (Pulse 1, 2a, 2b, 3a, 3b) without degradation or failure |
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement prior to reflow - compatible with standard SMT assembly |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally restricted substances |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS device placed at power entry point to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Withstands 1500 W peak power and clamps to 243 V, limiting overvoltage to safe levels for 36 V-rated downstream components. | Use Scenario: Shielding analog/digital input channels of programmable logic controllers from field-induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on isolated sensor or actuator interfaces exposed to long cable runs. Use Value: Sub-1 ps response time ensures clamping activation before sensitive ADCs or isolators experience damaging voltage excursions. |
| Telecom Base Station Power Rails | Renewable Energy Inverter Control Boards |
Use Scenario: Safeguarding 48 V DC power inputs in outdoor telecom cabinets subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage protection element on bulk power rail, coordinated with upstream fuses and downstream filters. Use Value: 243 V clamping voltage prevents latch-up or burnout in PMICs and FPGAs rated for ≤28 V absolute maximum. | Use Scenario: Protecting gate drivers and MCU supply pins in solar inverter control units located near high-di/dt switching nodes. IC Role / Device Role / Timing Role: Localized TVS on auxiliary 12 V/15 V rails feeding isolated gate drivers and communication ICs. Use Value: AEC-Q101 qualification and –55°C to +150°C operation ensure reliability in uncooled outdoor enclosures with wide ambient swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | 600 W PPK rating, same VWM/VBR/VC but lower surge capacity; DO-214AA (SMB) package | Lower power handling limits use to less severe transients or secondary protection stages | Select when board space is constrained and peak surge energy is ≤600 W |
| 1.5KE150CA | Through-hole TO-218 package, 1500 W PPK, same VWM/VBR/VC; slower response (~1.0 ns vs. <1.0 ps) | Not suitable for automated SMT lines; higher thermal mass delays response in fast-edge transients | Select only for legacy through-hole designs where rework flexibility outweighs SMT efficiency |
Compared with SMBJ150CA and 1.5KE150CA, the SMCJ150CAH delivers identical clamping performance in a surface-mount AEC-Q101-qualified package with superior surge response speed and full ISO 7637-2 compliance - making it optimal for new automotive and industrial SMT platforms requiring first-line transient resilience.
Availability
SMCJ150CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, telecom base station power supplies, and renewable energy inverter control boards requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCJ150CAH 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 for automotive, industrial, and consumer markets.
The SMCJ series was developed specifically for high-reliability transient suppression in harsh environments - emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust thermal performance in compact SMC packages.
FAQ
What does the "CAH" suffix indicate in SMCJ150CAH?
The "CAH" suffix denotes a bidirectional configuration (C), AEC-Q101 qualification (A), and halogen-free construction (H). Unlike unidirectional variants (e.g., SMCJ150H), the SMCJ150CAH conducts and clamps symmetrically for both polarities - eliminating polarity marking and simplifying layout for AC or floating bus protection. This is confirmed in the datasheet's "Devices for bipolar applications" section.
Does SMCJ150CAH meet ISO 7637-2 Pulse 2b (load dump) requirements?
Yes, the SMCJ150CAH is explicitly stated to meet ISO 7637-2 Pulse 1/2a/2b/3a/3b. Pulse 2b simulates alternator load dump events up to 60 V superimposed on 14 V nominal systems. With its 150 V VWM and 243 V VC rating, the SMCJ150CAH clamps such transients well within safe margins for 36 V-rated downstream ICs - validated per TSC's test documentation and AEC-Q101 stress screening.
What is the maximum clamping voltage of SMCJ150CAH and at what current is it specified?
The maximum clamping voltage (VC) of the SMCJ150CAH is 243 V, measured at a peak impulse current (IPPM) of 6.4 A under the standardized 10/1000 μs double-exponential waveform. This value is listed in the Electrical Specifications table on page 3 of the datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is SMCJ150CAH suitable for reflow soldering without moisture sensitivity concerns?
Yes, the SMCJ150CAH has a J-STD-020 moisture sensitivity level (MSL) of 1 - meaning it has unlimited floor life and requires no baking prior to reflow. Its matte tin-plated leads are solderable per J-STD-002, and the DO-214AB package is fully compatible with standard lead-free reflow profiles. This eliminates handling constraints in high-volume SMT production.
How does the thermal performance of SMCJ150CAH compare to similar TVS diodes in DO-214AB packages?
The SMCJ150CAH specifies RθJC = 10°C/W and RθJA = 55°C/W - matching industry benchmarks for DO-214AB-packaged 1500 W TVS diodes. Its low junction-to-case resistance enables efficient heat transfer to the PCB thermal pad, while the 150°C maximum junction temperature allows sustained operation in under-hood automotive zones where ambient temperatures exceed 105°C - a key differentiator versus non-AEC-Q101 alternatives.
SMCJ150CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- 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):
- 6.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ150CAH FAQ
1.How can I place an order for SMCJ150CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150CAH 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 SMCJ150CAH reliable?
The price and inventory of SMCJ150CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150CAH is usually 5 days.
3.What payment methods are accepted for SMCJ150CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150CAH?
SMCJ150CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150CAH 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 SMCJ150CAH?
For technical support, including SMCJ150CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150CAH requirements.
6.How does Aetrix verify that SMCJ150CAH is sourced from the original manufacturer or authorized distributors?
All SMCJ150CAH 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 SMCJ150CAH meets industry standards.
7.What is the process for return or replacement of SMCJ150CAH?
All SMCJ150CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150CAH, 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 SMCJ150CAH part is unused and in its original packaging.
Return procedure for SMCJ150CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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