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Vishay General Semiconductor - Diodes Division SMCJ150CAHE3/57T
- Part No.:
- SMCJ150CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150CAHE3/57T.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,873
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Product details
Overview
SMCJ150CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power (10/1000 μs), 150 V standoff voltage (VWM), and clamping voltage of 243 V at 6.2 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMCJ150CAHE3/57T datasheet, SMCJ150CAHE3/57T pinout, SMCJ150CAHE3/57T application, or SMCJ150CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating, thermal resistance (RθJA = 75 °C/W), and RoHS-compliant matte tin plating compatible with J-STD-002 soldering standards.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector triggered by transient overvoltage events exceeding its 150 V standoff level. Its bidirectional architecture enables symmetrical clamping in both polarities without polarity marking, supporting AC-coupled or floating signal line protection.
It features glass-passivated junction construction for stable breakdown behavior, low incremental surge resistance for minimal voltage overshoot during fast transients (response time < 1 ns), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 150 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown Voltage) | 167–185 V at 1 mA - Confirmed minimum/maximum breakdown threshold under standardized test conditions |
| VC (Clamping Voltage) | 243 V at IPPM = 6.2 A - Peak voltage seen across device during 10/1000 μs surge, limiting stress on downstream components |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capacity for single transient events per IEC 61000-4-5 waveform |
| TJ max. | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient, defining derating requirements on standard PCB copper pads |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking; case dimensions 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional conduction | Connected to protected line; conducts during negative transients relative to cathode reference |
| Cathode | Current exit terminal in forward bias; common node in bidirectional conduction | Connected to protected line; conducts during positive transients relative to anode reference |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables symmetric surge suppression on AC or floating nodes without polarity-sensitive layout |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C without moisture-related popcorning or delamination |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS subsystems requiring extended reliability |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails feeding ECUs against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤243 V during 100 V/350 ms load dump events, preventing latch-up or gate oxide damage in downstream FETs and regulators. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) from ESD and inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp on differential or single-ended sensor outputs exposed to relay coil flyback. Use Value: Maintains signal integrity below 243 V clamping threshold while preserving low leakage (<1 μA at 150 V), avoiding measurement offset. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHY interface circuitry (e.g., RJ45 magnetics secondary side) from lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-level TVS on data pair lines, coordinated with GDT or polymer PTC secondary protection. Use Value: Absorbs 1500 W surge energy within nanoseconds, reducing let-through voltage to levels compatible with 3.3 V/5 V PHY IC absolute maximum ratings. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Across-the-line TVS connected between motor terminals and chassis ground. Use Value: Clamps flyback voltages to 243 V, preventing arcing across switch contacts and protecting MCU GPIOs monitoring motor status. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC150CA | Lower PPPM (600 W), same VWM (150 V), smaller SMA package (DO-214AC) | Limited to lower-energy transients; unsuitable for ISO 16750-2 load dump | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only |
| 1.5KE150CA | Higher VBR (167–185 V), same VC (243 V), axial-leaded DO-201 package | Not surface-mountable; requires through-hole assembly and larger PCB footprint | Choose for legacy designs or prototyping where rework flexibility outweighs automated placement needs |
Compared with SAC150CA and 1.5KE150CA, the SMCJ150CAHE3/57T delivers superior surge robustness in a compact SMC package with AEC-Q101 validation-making it optimal for automotive and high-reliability industrial applications demanding 1500 W clamping and RoHS-compliant reflow compatibility.
Availability
SMCJ150CAHE3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom line protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ150CAHE3/57T 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom systems-where consistent clamping performance and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the SMCJ150CAHE3/57T and how is it measured?
The SMCJ150CAHE3/57T has a maximum clamping voltage (VC) of 243 V at 6.2 A peak pulse current (IPPM), tested with a 10/1000 μs double-exponential surge waveform per IEC 61000-4-5. This value represents the highest voltage the device allows across its terminals during a standardized transient event, ensuring downstream components remain within safe operating limits. The SMCJ150CAHE3/57T achieves this clamping performance consistently due to its low incremental surge resistance and glass-passivated junction.
Is the SMCJ150CAHE3/57T suitable for automotive applications?
Yes, the SMCJ150CAHE3/57T is AEC-Q101 qualified and specifically designed for automotive use, including power distribution modules, body control units, and ADAS sensor interfaces. Its 1500 W peak pulse power rating, 150 °C maximum junction temperature, and MSL Level 1 reflow compatibility meet stringent automotive reliability and manufacturing requirements. The SMCJ150CAHE3/57T is marked with HE3 suffix to denote AEC-Q101 qualification and RoHS compliance.
How does the bidirectional design of the SMCJ150CAHE3/57T affect its circuit implementation?
The bidirectional design of the SMCJ150CAHE3/57T eliminates polarity marking and enables symmetrical clamping on AC-coupled or floating signal paths-such as Ethernet pairs, RS-485 buses, or transformer-isolated power supplies. Unlike unidirectional TVS diodes, the SMCJ150CAHE3/57T conducts during both positive and negative overvoltage transients without requiring external orientation checks, simplifying layout and reducing BOM count in differential protection schemes.
What is the thermal resistance of the SMCJ150CAHE3/57T and how does it impact PCB layout?
The SMCJ150CAHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value dictates derating above 25 °C ambient: at 85 °C ambient, its usable peak pulse power drops to ~900 W. To maintain full 1500 W rating, designers must allocate adequate copper area and consider thermal vias-especially critical in automotive under-hood applications where the SMCJ150CAHE3/57T operates near its +150 °C TJ limit.
Does the SMCJ150CAHE3/57T require a heatsink for standard operation?
No, the SMCJ150CAHE3/57T does not require an external heatsink for transient suppression duty cycles, as its 1500 W rating applies to non-repetitive pulses (e.g., single ESD or lightning surge). Continuous power dissipation is limited to 6.5 W at TA = 50 °C, which is handled by standard PCB copper. However, for repetitive surge events (>1 Hz), thermal management via increased pad area or internal layer copper pours is recommended to prevent junction temperature exceedance. The SMCJ150CAHE3/57T's RθJL of 15 °C/W supports efficient heat transfer to PCB traces.
SMCJ150CAHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 6.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ150CAHE3/57T FAQ
1.How can I place an order for SMCJ150CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150CAHE3/57T 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 SMCJ150CAHE3/57T reliable?
The price and inventory of SMCJ150CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ150CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150CAHE3/57T?
SMCJ150CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150CAHE3/57T 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 SMCJ150CAHE3/57T?
For technical support, including SMCJ150CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ150CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ150CAHE3/57T 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 SMCJ150CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ150CAHE3/57T?
All SMCJ150CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150CAHE3/57T, 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 SMCJ150CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ150CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150CAHE3/57T Tags
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