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Vishay General Semiconductor - Diodes Division SMCJ150-E3/57T
- Part No.:
- SMCJ150-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150-E3/57T.pdf
- Description:
- TVS DIODE 150VWM 268VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,464
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Product details
Overview
SMCJ150-E3/57T 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 (10/1000 µs), and clamping voltage of 243 V at 6.2 A. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMCJ150-E3/57T datasheet, SMCJ150-E3/57T pinout, SMCJ150-E3/57T application, or SMCJ150-E3/57T equivalent, key selection criteria include unidirectional polarity, 150 V working voltage, 243 V clamping under 6.2 A surge, AEC-Q101 qualification, and DO-214AB thermal performance with RθJA = 75 °C/W.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (167–185 V), it avalanches to limit transient energy across protected circuit nodes. Its glass-passivated junction ensures stable leakage (<1.0 µA at 150 V) and fast response (<1 ns), while low incremental surge resistance enables effective clamping during 10/1000 µs surges up to 1500 W.
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads, the device delivers 6.5 W steady-state power dissipation at TA = 50 °C and supports operating junction temperatures from –55 °C to +150 °C - critical for under-hood automotive and industrial motor drive environments where thermal derating must be modeled per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before conduction begins; sets upper limit for normal circuit operation. |
| VBR min/max | 167 V / 185 V at IT = 1 mA - defines guaranteed avalanche onset window; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 243 V at 6.2 A - clamping voltage during full 1500 W surge; determines maximum stress imposed on downstream components. |
| PPPM | 1500 W - peak pulse power handling (10/1000 µs waveform); quantifies single-event surge energy absorption capability. |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine); validates robustness against inrush or fault currents in power rails. |
| RθJA | 75 °C/W - thermal resistance junction-to-ambient on recommended pad layout; enables thermal design margin calculation for PCB layout. |
Pinout & Package
Package: DO-214AB (SMCJ), molded plastic case with matte tin-plated leads, RoHS-compliant, MSL Level 1 (260 °C peak reflow), AEC-Q101 qualified. Polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (uni-directional) | Connected to lower-potential side of protected line; conducts only during forward surge events (e.g., reverse battery protection). |
| Cathode | Reverse-biased terminal (uni-directional) | Connected to higher-potential rail; avalanche conduction occurs here during overvoltage transients above VWM. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and long-term reliability under thermal cycling and humidity stress. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics applications requiring zero-failure field performance. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision and reducing stress on protected ICs. |
| MSL Level 1 moisture sensitivity | Enables standard SMT assembly without baking; compatible with high-volume automated placement and lead-free reflow profiles. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Shunt clamping element placed across input rail upstream of DC/DC converter and microcontroller. Use Value: Clamps 1500 W surges to ≤243 V, preventing damage to 3.3 V/5 V logic and enabling compliance with automotive EMC immunity requirements. | Use Scenario: Safeguarding IGBT gate drivers in variable-frequency drives exposed to Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Unidirectional TVS connected between gate and emitter to clamp positive-going gate overvoltage. Use Value: Fast <1 ns response limits gate oxide stress; 150 V VWM allows compatibility with ±15 V gate drive rails while blocking normal operation. |
| Telecom DC Feeder Line Protection | Consumer Appliance Power Input Stage |
Use Scenario: Shielding PoE-powered equipment front-end from lightning-induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Primary shunt protector on DC input before hot-swap controller and filter stage. Use Value: 1500 W rating handles Category A/B surge tests; DO-214AB package supports high-current PCB trace routing and thermal relief. | Use Scenario: Securing AC-DC adapter output against switching transients and ESD in white goods control boards. IC Role / Device Role / Timing Role: Secondary-level TVS on regulated 5 V/12 V outputs feeding MCU and display interfaces. Use Value: 243 V clamping prevents latch-up in downstream LDOs; AEC-Q101 qualification adds margin for extended product lifetime in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52T | Lower PPPM (600 W), smaller SMB package (DO-214AA), higher RθJA (110 °C/W) | Not suitable for 1500 W surge events; limited to lower-energy transients in space-constrained consumer designs. | Select only if system-level surge testing confirms ≤600 W requirement and thermal budget permits higher junction rise. |
| SMCJ150AHE3/57T | Identical electrical specs but AEC-Q101 qualified (HE3 suffix); same DO-214AB package and marking code GHM | Required for automotive safety-critical modules where component qualification traceability is mandated. | Choose SMCJ150AHE3/57T when OEM requires documented AEC-Q101 test reports and process controls beyond commercial-grade SMCJ150-E3/57T. |
Compared with SMBJ150A-E3/52T and SMCJ150AHE3/57T, the SMCJ150-E3/57T offers optimal balance of 1500 W surge capacity, DO-214AB thermal performance, and commercial-grade cost - making it ideal for industrial and telecom applications where AEC-Q101 is not mandated but high-energy clamping is essential.
Availability
SMCJ150-E3/57T is available at Aetrix Electronics and suitable for automotive power supply protection, industrial motor drive gate protection, and telecom DC feeder line protection requiring stable component supply and consistent surge performance across production batches.
Supply support for SMCJ150-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-grade qualification.
The SMCJ series belongs to Vishay's TRANSZORB® transient voltage suppressor family, engineered specifically for high-power, surface-mount surge protection in demanding automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage range of the SMCJ150-E3/57T?
The SMCJ150-E3/57T has a guaranteed breakdown voltage (VBR) range of 167 V to 185 V at test current IT = 1 mA, measured per ANSI/IEEE C62.35 standards. This range ensures reliable avalanche initiation across manufacturing lots and temperature extremes, supporting robust overvoltage protection design margins for 150 V nominal systems.
Is the SMCJ150-E3/57T suitable for automotive applications?
The SMCJ150-E3/57T is RoHS-compliant and manufactured in a commercial-grade flow. While it shares the DO-214AB package and electrical specs with AEC-Q101-qualified variants like SMCJ150AHE3/57T, the SMCJ150-E3/57T itself is not AEC-Q101 certified. For automotive safety-critical use, specify the HE3-suffixed version; SMCJ150-E3/57T remains appropriate for non-safety automotive subsystems where qualification is not mandated.
What is the clamping voltage of the SMCJ150-E3/57T under maximum surge conditions?
The SMCJ150-E3/57T clamps to a maximum of 243 V when subjected to its rated peak pulse current of 6.2 A (corresponding to 1500 W, 10/1000 µs waveform). This value is measured under standardized test conditions with specified PCB pad layout and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Does the SMCJ150-E3/57T have bidirectional capability?
No, the SMCJ150-E3/57T is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). It conducts only in reverse bias above VBR and blocks forward current up to its rated IFSM = 200 A. For bidirectional protection (e.g., AC lines or data bus protection), select the SMCJ150CA-E3/57T variant instead.
What packaging format does the SMCJ150-E3/57T ship in?
The SMCJ150-E3/57T ships in 7-inch diameter plastic tape and reel format, with a base quantity of 850 units per reel (package code 57T). This configuration supports automated SMT placement and is compatible with standard pick-and-place equipment used in high-volume electronics manufacturing.
SMCJ150-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ150-E3/57T FAQ
1.How can I place an order for SMCJ150-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150-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 SMCJ150-E3/57T reliable?
The price and inventory of SMCJ150-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 SMCJ150-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ150-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150-E3/57T?
SMCJ150-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150-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 SMCJ150-E3/57T?
For technical support, including SMCJ150-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150-E3/57T requirements.
6.How does Aetrix verify that SMCJ150-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ150-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 SMCJ150-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ150-E3/57T?
All SMCJ150-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150-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 SMCJ150-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ150-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150-E3/57T Tags
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