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Vishay General Semiconductor - Diodes Division SMCJ150A-E3/57T
- Part No.:
- SMCJ150A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150A-E3/57T.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,434
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Product details
Overview
SMCJ150A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 243 V at 6.2 A peak pulse current, with 1500 W peak pulse power rating and 150 V standoff voltage. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMCJ150A-E3/57T datasheet, SMCJ150A-E3/57T pinout, SMCJ150A-E3/57T application, or SMCJ150A-E3/57T equivalent, key selection criteria include clamping voltage (243 V), breakdown voltage range (167–185 V), unidirectional polarity, RoHS-compliant matte tin plating, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This TVS diode operates as a clamping device triggered by reverse-biased avalanche breakdown above its standoff voltage (VWM = 150 V), delivering fast response (<1 ns) and low incremental surge resistance to suppress transient energy from inductive switching or ESD events. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The SMCJ150A-E3/57T is rated for 1500 W peak pulse power (10/1000 µs waveform), derated linearly above 25 °C ambient, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead). It supports operation from –55 °C to +150 °C junction temperature and meets MSL Level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 167 V / 185 V - Breakdown voltage range at 1 mA test current; defines turn-on threshold consistency |
| VC @ IPPM | 243 V - Clamped voltage at 6.2 A peak pulse current; determines maximum stress on protected circuit |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 µs waveform; critical for surge immunity design |
| ID @ VWM | 1.0 µA - Reverse leakage at standoff voltage; ensures minimal standby power loss and signal integrity |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive and high-temperature industrial environments |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal requirement |
Pinout & Package
SMCJ150A-E3/57T uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, 0.320" length, 0.246" width, and cathode band marking on the unidirectional device. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to ground or low-side reference in unidirectional clamp configuration |
| Cathode | Avalanche breakdown node | Connected to protected line; band-marked end carries transient current into ground during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMC package | Enables automated placement and fits space-constrained PCB layouts without height interference |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) when properly laid out |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak without baking |
| RoHS-compliant E3 suffix | Meets commercial-grade environmental compliance with matte tin plating solderable per J-STD-002 |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting gate drivers and MCU I/O pins from load dump and inductive kickback in 12 V/24 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient spikes on power rails and signal lines upstream of sensitive logic. Use Value: Limits voltage excursion to ≤243 V during 1500 W surges, preventing latch-up or oxide breakdown in 3.3 V/5 V controllers. | Use Scenario: Safeguarding encoder feedback lines and PWM input circuits in variable-frequency drives exposed to relay contact bounce and motor arcing. IC Role / Device Role / Timing Role: Fast-response transient suppression on differential analog inputs and digital control signals. Use Value: Sub-1 ns response time and 1.0 µA leakage preserve signal fidelity while blocking >100 V transients induced by commutation noise. |
| Telecom Power Supply Input | Consumer Appliance Mainboard Protection |
Use Scenario: Secondary-side overvoltage protection on DC-DC converter outputs feeding baseband processors in outdoor telecom units. IC Role / Device Role / Timing Role: Standoff-rated clamping element placed between regulated rail and ground, activated only during fault conditions. Use Value: 150 V VWM aligns with 12 V–48 V intermediate bus voltages; 243 V VC prevents downstream regulator overvoltage failure. | Use Scenario: Input-stage surge protection on microcontroller reset lines and communication interfaces (UART, I²C) in washing machine control boards. IC Role / Device Role / Timing Role: Low-leakage unidirectional shunt device absorbing ESD and EFT pulses from user interface wiring. Use Value: 1.0 µA ID at 150 V minimizes quiescent current impact; SMC package allows placement adjacent to connectors without footprint penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/61 | Lower PPPM (400 W), smaller SMA package, same VWM/VBR range | Not suitable for 1500 W surge requirements; limited to lower-energy transients | Select only if board space is critical and surge threat level is ≤IEC 61000-4-5 Level 2 |
| SMCJ150CA-E3/57T | Bidirectional variant; identical VWM/VBR/PPPM but symmetrical clamping in both polarities | Required for AC-coupled or floating signal lines where polarity reversal occurs | Choose when protecting differential pairs, antenna ports, or bidirectional data buses like RS-485 |
Compared with SMAJ150A-E3/61 and SMCJ150CA-E3/57T, the SMCJ150A-E3/57T uniquely delivers 1500 W clamping capacity in a unidirectional configuration with verified automotive-grade thermal robustness-making it optimal for high-energy DC rail protection where polarity is fixed and surge margin is non-negotiable.
Availability
SMCJ150A-E3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive control, telecom power supply input, and consumer appliance mainboard protection requiring stable component supply and full traceability.
Supply support for SMCJ150A-E3/57T 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, power efficiency, and automotive qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in harsh-environment applications including automotive, industrial automation, and telecom infrastructure.
FAQ
What is the clamping voltage of SMCJ150A-E3/57T at its rated peak pulse current?
The SMCJ150A-E3/57T has a maximum clamping voltage (VC) of 243 V at its rated peak pulse current (IPPM) of 6.2 A, measured using the standard 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated surge event and is confirmed in Vishay's Document Number 88394, page 2.
Is SMCJ150A-E3/57T suitable for automotive applications?
SMCJ150A-E3/57T itself is RoHS-compliant commercial grade (E3 suffix), but Vishay offers AEC-Q101 qualified versions under HE3 suffix (e.g., SMCJ150AHE3_A/H). The SMCJ150A-E3/57T shares identical electrical and thermal specifications with those qualified variants-enabling pre-validation in automotive designs pending formal qualification documentation.
What is the thermal resistance of SMCJ150A-E3/57T and how does it affect PCB layout?
The SMCJ150A-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on minimum recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain safe junction temperature under 1500 W surges, designers must adhere strictly to this pad layout; reducing pad area increases thermal impedance and risks exceeding the +150 °C TJ max rating.
How does the unidirectional configuration of SMCJ150A-E3/57T impact circuit protection strategy?
The unidirectional configuration of SMCJ150A-E3/57T means it conducts only during reverse-biased overvoltage events-ideal for DC power rails and grounded-signal lines. Its cathode band must be oriented toward the protected line, and it provides no protection against positive-going transients on anode-referenced nodes. This differs fundamentally from bidirectional variants like SMCJ150CA-E3/57T, which protect both polarities symmetrically.
What packaging format is used for SMCJ150A-E3/57T and what are its handling implications?
SMCJ150A-E3/57T is supplied in 7" diameter plastic tape and reel (package code 57T), with 850 units per reel. The E3 suffix indicates RoHS-compliant matte tin plating, qualified for soldering per J-STD-002 and whisker-resistant per JESD 201 Class 2-ensuring reliable reflow performance without post-solder cleaning or special handling beyond standard SMT protocols.
SMCJ150A-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ150A-E3/57T FAQ
1.How can I place an order for SMCJ150A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150A-E3/57T 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 SMCJ150A-E3/57T reliable?
The price and inventory of SMCJ150A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ150A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150A-E3/57T?
SMCJ150A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150A-E3/57T 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 SMCJ150A-E3/57T?
For technical support, including SMCJ150A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150A-E3/57T requirements.
6.How does Aetrix verify that SMCJ150A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ150A-E3/57T 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 SMCJ150A-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ150A-E3/57T?
All SMCJ150A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150A-E3/57T, 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 SMCJ150A-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ150A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150A-E3/57T Tags
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