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Vishay General Semiconductor - Diodes Division SMCJ150AHM3_A/I
- Part No.:
- SMCJ150AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150AHM3_A/I.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,777
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Product details
Overview
SMCJ150AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 150 V standoff voltage (VWM), 243 V maximum clamping voltage (VC) at 6.2 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) rating under 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive power systems and industrial motor controls.
For engineers reviewing the SMCJ150AHM3_A/I datasheet, SMCJ150AHM3_A/I pinout, SMCJ150AHM3_A/I application, or SMCJ150AHM3_A/I equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), thermal resistance (RθJA = 75 °C/W), and junction temperature range (–55 °C to +150 °C).
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (VBR min = 167 V, max = 185 V at IT = 1 mA), it avalanches rapidly (<1 ns response) to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repetitive surge stress.
The SMCJ150AHM3_A/I is rated for 1500 W peak pulse power per 10/1000 µs waveform, with clamping voltage tightly controlled at 243 V - critical for safeguarding 150 V-rated bus rails. Its MSL Level 1 moisture sensitivity and 260 °C lead-free reflow compatibility support automated SMT assembly without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 150 V DC bus protection. |
| VBR (min/max) | 167 V / 185 V at IT = 1 mA - guaranteed avalanche initiation window; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 243 V at 6.2 A - maximum clamped voltage during 1500 W transient; determines worst-case overvoltage seen by protected ICs. |
| PPPM | 1500 W - peak pulse power handling under standardized 10/1000 µs waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage at 150 V; minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ Range | –55 °C to +150 °C - extended junction temperature capability supports under-hood automotive and industrial ambient conditions. |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on standard 8 mm × 8 mm copper pads; enables accurate thermal derating in layout planning. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1, matte tin-plated leads. Cathode indicated by band marking on cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference in unidirectional TVS configuration. | Provides low-impedance path to ground during transient events; must be routed with minimal inductance to preserve clamping speed. |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 150 V rail or signal trace). | Defines polarity-sensitive placement - band-marked end must face protected node; incorrect orientation disables protection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| Halogen-free & RoHS-compliant (HM3) | Meets JESD201 Class 2 whisker resistance and global environmental regulations - eliminates brominated flame retardants without compromising mechanical robustness. |
| Low incremental surge resistance | Enables tighter VC/VBR ratio (243 V / 167 V ≈ 1.45), reducing let-through voltage compared to higher-Rsurge TVS devices. |
| Very fast response time | Sub-nanosecond avalanche turn-on ensures protection before sensitive components experience damaging overvoltage - critical for MOSFET gate drivers. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation prevents fire propagation in high-power fault conditions - mandated for industrial safety certifications. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
|
Use Scenario: Protecting 150 V battery-fed ECUs and DC-DC converters from load dump transients (ISO 16750-2 Pulse 5a). IC Role / Device Role / Timing Role: Shunt clamping device placed directly across input rail upstream of DC-DC controller ICs. Use Value: Clamps to 243 V within nanoseconds, preventing controller latch-up or gate oxide rupture during 120 V/350 ms load dump events. |
Use Scenario: Safeguarding IGBT gate driver inputs and feedback signal lines in variable-frequency drives exposed to switching-induced dv/dt noise. IC Role / Device Role / Timing Role: Point-of-load transient suppressor mounted adjacent to gate driver IC pins. Use Value: Limits coupled transients to ≤243 V while maintaining <1.0 µA leakage - avoids false triggering of level-shifted logic interfaces. |
| Telecom DC Power Feeds | Renewable Energy Inverter Control |
|
Use Scenario: Securing -48 V telecom rectifier outputs and backplane distribution against lightning-induced surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus feeding PMICs and FPGA power sequencing ICs. Use Value: Handles 1500 W pulses without degradation, enabling single-device protection instead of stacked TVS arrays - reduces BOM count and board area. |
Use Scenario: Protecting microcontroller ADC inputs and isolated current sense amplifier outputs in solar string inverters subject to grid-switching transients. IC Role / Device Role / Timing Role: Signal-line TVS on analog sensing paths between isolation barrier and MCU. Use Value: 1.0 µA leakage at 150 V ensures measurement accuracy remains unaffected; 150 °C TJ rating sustains operation inside sealed inverter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150AHE3_A/I | Lower PPPM (400 W), SMA package (DO-214AC), same VWM/VBR/VC specs but reduced surge capacity. | Suitable only for lower-energy transients (e.g., ESD-only); not rated for IEC 61000-4-5 Level 3+. | Select when space constraints prohibit SMC footprint and surge requirements are ≤400 W. |
| SMCJ150AHE3_A/I | Same electrical specs and SMC package, but RoHS-compliant commercial grade (E3) - not halogen-free or AEC-Q101 qualified. | Lacks automotive qualification and halogen-free certification; acceptable for industrial/commercial non-automotive use. | Choose for cost-sensitive non-automotive designs where HM3-specific environmental compliance is unnecessary. |
Compared with SMCJ150AHM3_A/I, SMAJ150AHE3_A/I trades surge robustness for smaller size, while SMCJ150AHE3_A/I retains identical protection performance but omits halogen-free and automotive qualifications - making SMCJ150AHM3_A/I the sole option meeting full AEC-Q101 + halogen-free requirements in this voltage class.
Availability
SMCJ150AHM3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, telecom DC feeds, and renewable energy inverter control requiring stable component supply, long lifecycle assurance, and certified environmental compliance.
Supply support for SMCJ150AHM3_A/I 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 - targeting automotive, industrial, and telecom systems where failure tolerance and regulatory compliance are non-negotiable.
FAQ
What is the clamping voltage of the SMCJ150AHM3_A/I under maximum rated surge current?
The SMCJ150AHM3_A/I has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current (IPPM) of 6.2 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C on recommended 8.0 mm × 8.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMCJ150AHM3_A/I maintains this clamping performance across its full operating temperature range.
Is the SMCJ150AHM3_A/I qualified for automotive applications?
Yes, the SMCJ150AHM3_A/I carries the HM3 suffix, indicating it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD - validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and ADAS power supplies. The SMCJ150AHM3_A/I meets all requirements specified in the AEC-Q101 Rev D standard.
How does the SMCJ150AHM3_A/I differ from the SMCJ150AHE3_A/I?
The SMCJ150AHM3_A/I and SMCJ150AHE3_A/I share identical electrical specifications (VWM = 150 V, VBR = 167–185 V, VC = 243 V, PPPM = 1500 W) and SMC (DO-214AB) package, but differ in compliance: SMCJ150AHM3_A/I is halogen-free and AEC-Q101 qualified, whereas SMCJ150AHE3_A/I is RoHS-compliant commercial grade only. The SMCJ150AHM3_A/I is designated for automotive and environmentally regulated applications where both qualifications are mandatory.
What is the thermal resistance and maximum junction temperature of the SMCJ150AHM3_A/I?
The SMCJ150AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 8.0 mm × 8.0 mm copper pad per terminal, and a maximum operating junction temperature (TJ) of +150 °C. Its storage temperature range matches at –55 °C to +150 °C. These ratings enable reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures, provided layout thermal design adheres to Vishay's pad recommendations.
Does the SMCJ150AHM3_A/I have polarity markings, and how is it oriented in circuit?
Yes, the SMCJ150AHM3_A/I is unidirectional and features a cathode band marking on the package body - the banded end connects to the protected line (e.g., 150 V rail), while the unbanded end (anode) connects to ground or return. This orientation is essential: reversing the SMCJ150AHM3_A/I renders it nonfunctional as a shunt protector. The band corresponds directly to the cathode terminal in the device's internal PN junction structure and must align with schematic symbol polarity.
SMCJ150AHM3_A/I 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:
- 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)
SMCJ150AHM3_A/I FAQ
1.How can I place an order for SMCJ150AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150AHM3_A/I 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 SMCJ150AHM3_A/I reliable?
The price and inventory of SMCJ150AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ150AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ150AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150AHM3_A/I?
SMCJ150AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150AHM3_A/I 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 SMCJ150AHM3_A/I?
For technical support, including SMCJ150AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150AHM3_A/I requirements.
6.How does Aetrix verify that SMCJ150AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ150AHM3_A/I 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 SMCJ150AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ150AHM3_A/I?
All SMCJ150AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150AHM3_A/I, 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 SMCJ150AHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ150AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ150AHM3_A/I Tags
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