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Vishay General Semiconductor - Diodes Division SMCJ150HE3/57T
- Part No.:
- SMCJ150HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150HE3/57T.pdf
- Description:
- TVS DIODE 150VWM 268VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,934
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Product details
Overview
SMCJ150HE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for high-energy surge protection with 150 V standoff voltage, 167–185 V breakdown range at 1 mA, 1500 W peak pulse power, and clamping voltage of 243 V at 6.2 A. It protects MOSFETs, ICs, and sensor signal lines in automotive power systems.
For engineers reviewing the SMCJ150HE3/57T datasheet, SMCJ150HE3/57T pinout, SMCJ150HE3/57T application, or SMCJ150HE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 1500 W 10/1000 µs surge rating, DO-214AB thermal performance (RθJA = 75 °C/W), and RoHS-compliant matte tin leads meeting JESD 201 Class 2 whisker test.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry, conducting only when reverse voltage exceeds VBR to limit transient energy. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response (<1 ps) to ESD and lightning-induced transients.
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads per terminal, it delivers 1500 W peak pulse power under standardized 10/1000 µs waveform while maintaining 150 °C maximum junction temperature and -55 °C to +150 °C operating range - critical for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 167 V / 185 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on margin above VWM |
| VC @ IPPM | 243 V at 6.2 A - Clamped voltage during full 1500 W surge, defining protected circuit stress level |
| PPPM | 1500 W - Peak pulse power handling capability under 10/1000 µs waveform, per ANSI/IEEE C62.35 |
| IFSM | 200 A - Single half-sine surge current rating (8.3 ms), supporting load-dump immunity in 12 V systems |
| TJ max | +150 °C - Maximum junction temperature enabling operation in high-ambient automotive locations |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on recommended pad layout, guiding heatsinking needs |
Pinout & Package
Package: DO-214AB (SMCJ), low-profile surface-mount case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (uni-directional) | Connected to ground or lower-potential rail; conducts during reverse overvoltage events |
| Cathode | Reverse voltage sensing node | Banded end; connected to protected line (e.g., 12 V supply or CAN bus); defines clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability under thermal stress |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under high-humidity, high-temperature conditions typical in engine compartments |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation material required for automotive and industrial safety compliance |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 12 V battery-fed ECUs against ISO 7637-2 load dump transients up to 120 V for 400 ms. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and input stage of power management IC. Use Value: Limits voltage seen by downstream regulators to ≤243 V during 1500 W surge, preventing latch-up or gate oxide damage. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across sensor output and return path. Use Value: Clamps fast-rising transients (<1 ns rise time) to <243 V while adding <1 pF junction capacitance, preserving signal integrity. |
| On-Board Charger Input Stage | Automotive Lighting Control Modules |
Use Scenario: Input protection for AC/DC front-end converters in EV on-board chargers exposed to grid surges and coupling noise. IC Role / Device Role / Timing Role: Primary-level TVS on DC input bus prior to PFC stage. Use Value: Absorbs 1500 W pulses without degradation, maintaining 150 V working voltage margin above nominal 100–120 V DC input. | Use Scenario: Safeguarding LED driver ICs and MOSFET switches in headlamp control units subjected to alternator ripple and relay bounce. IC Role / Device Role / Timing Role: Bidirectional-capable suppression (via adjacent CA variant) or unidirectional clamp on switched 12 V supply rail. Use Value: Withstands 200 A single-half-sine surge (IFSM), enabling robustness against repeated relay coil de-energization spikes. |
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-E3/52T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for space-constrained consumer electronics; insufficient for automotive load dump | Select SMCJ150HE3/57T when 1500 W surge handling and AEC-Q101 qualification are mandatory |
| SMCJ150AHE3/57T | Identical electrical specs and package, but unmarked bi-directional variant (no cathode band) | Used where symmetrical clamping is needed (e.g., differential data lines), not for DC rail protection | Choose SMCJ150HE3/57T for unidirectional DC protection; use SMCJ150AHE3/57T only if bidirectional behavior is explicitly required |
Compared with SMAJ150A-E3/52T and SMCJ150AHE3/57T, the SMCJ150HE3/57T uniquely combines 1500 W surge capacity, AEC-Q101 qualification, and DO-214AB thermal performance - making it the only option qualified for under-hood automotive power rail protection requiring sustained 150 V standoff and 243 V clamping.
Availability
SMCJ150HE3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and on-board charger input stages requiring stable component supply, long-lifecycle support, and traceable AEC-Q101 sourcing.
Supply support for SMCJ150HE3/57T 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, and protection devices with emphasis on automotive, industrial, and computing applications.
The SMCJ series was engineered specifically for high-reliability transient suppression in harsh environments, targeting AEC-Q101 compliance, high-power surge resilience, and surface-mount manufacturability for automotive electronics.
FAQ
What is the clamping voltage of the SMCJ150HE3/57T under maximum surge conditions?
The SMCJ150HE3/57T clamps to 243 V at its rated peak pulse current of 6.2 A (1500 W, 10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and represents the maximum voltage imposed on protected circuitry during worst-case transient events - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is the SMCJ150HE3/57T suitable for automotive applications?
Yes, the SMCJ150HE3/57T is AEC-Q101 qualified and features JESD 201 Class 2 whisker resistance, UL 94 V-0 molding, and operation from -55 °C to +150 °C. These attributes make it appropriate for under-hood automotive use, including engine control units, body controllers, and lighting modules where load dump and ESD immunity are mandated.
How does the SMCJ150HE3/57T differ from the SMCJ150AHE3/57T?
The SMCJ150HE3/57T is unidirectional with a cathode band marking, while the SMCJ150AHE3/57T is bi-directional with no polarity marking. Both share identical VWM, VBR, PPPM, and package, but only the HE3 version provides directional clamping essential for DC power rail protection.
What is the thermal resistance of the SMCJ150HE3/57T in standard mounting conditions?
The SMCJ150HE3/57T 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 assumes no additional heatsinking and guides thermal design for continuous power dissipation up to 6.5 W at 50 °C ambient.
Does the SMCJ150HE3/57T meet RoHS and lead-free assembly requirements?
Yes, the SMCJ150HE3/57T is RoHS-compliant (per Directive 2011/65/EU) and features matte tin-plated leads compatible with lead-free reflow soldering per J-STD-020 MSL Level 1 (peak 260 °C). The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance for automotive reliability.
SMCJ150HE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 268V
- Current - Peak Pulse (10/1000µs):
- 5.6A
- 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)
SMCJ150HE3/57T FAQ
1.How can I place an order for SMCJ150HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150HE3/57T 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 SMCJ150HE3/57T reliable?
The price and inventory of SMCJ150HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150HE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ150HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150HE3/57T?
SMCJ150HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150HE3/57T 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 SMCJ150HE3/57T?
For technical support, including SMCJ150HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150HE3/57T requirements.
6.How does Aetrix verify that SMCJ150HE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ150HE3/57T 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 SMCJ150HE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ150HE3/57T?
All SMCJ150HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150HE3/57T, 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 SMCJ150HE3/57T part is unused and in its original packaging.
Return procedure for SMCJ150HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150HE3/57T Tags
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