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Vishay General Semiconductor - Diodes Division SMCJ150AHM3_A/H
- Part No.:
- SMCJ150AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150AHM3_A/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,507
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Product details
Overview
SMCJ150AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, featuring 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR), 243 V maximum clamping voltage (VC) at 6.2 A peak pulse current, and 1500 W peak pulse power rating for 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in automotive and industrial power electronics.
For engineers reviewing the SMCJ150AHM3_A/H datasheet, SMCJ150AHM3_A/H pinout, SMCJ150AHM3_A/H application, or SMCJ150AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified breakdown range (167–185 V at 1 mA test current). Its low incremental surge resistance and fast response time enable effective suppression of sub-microsecond transients without latch-up or degradation under repetitive stress.
Designed for surface-mount implementation, the SMCJ150AHM3_A/H uses glass-passivated junction technology and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. It meets MSL Level 1 per J-STD-020 and supports peak junction temperatures up to +150 °C, with derating applied above TA = 25 °C per Figure 2 in the datasheet.
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 at 1 mA - Confirmed avalanche onset range defining turn-on threshold tolerance |
| VC @ IPPM | 243 V at 6.2 A - Clamped voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 1500 W - Peak transient energy absorption capability under standardized waveform |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient, critical for PCB pad layout design |
| TJ max | +150 °C - Absolute maximum junction temperature, enabling operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with cathode band marking |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; polarity indicated by cathode band on unidirectional devices; dimensions 7.11 mm × 6.22 mm × 2.62 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower-potential node in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line; reverse-biased during normal operation, conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Halogen-free & RoHS-compliant | HM3 suffix confirms compliance with environmental regulations and end-of-life processing requirements |
| Low profile SMC package | Enables high-density PCB layouts and compatibility with standard pick-and-place equipment |
| 1500 W surge rating | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 transients |
| Fast response time | Sub-nanosecond clamping enables protection of high-speed logic and analog interfaces |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protection of 12 V/24 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across power rail and ground to clamp voltage spikes before reaching downstream regulators and microcontrollers. Use Value: Limits rail voltage to ≤243 V during 10/1000 µs surges, preventing damage to 3.3 V/5 V logic and ensuring ASIL-B system integrity. | Use Scenario: Input stage safeguarding for variable-frequency drives exposed to inductive kickback from contactors and solenoids. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC bus input, absorbing energy from stored magnetic fields during rapid de-energization. Use Value: Withstands 1500 W pulses without degradation, maintaining protection margin after repeated 6.2 A surge events per IEC 61800-3. |
| Telecom Line Interface Protection | Automotive Sensor Signal Conditioning |
Use Scenario: Surge immunity enhancement for Ethernet PHY power rails and auxiliary bias supplies in base station remote units. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 3.3 V/5 V supply lines feeding PHY ICs and magnetics. Use Value: Clamps induced transients below IC absolute maximum ratings while adding <0.5 pF parasitic capacitance at 0 V bias. | Use Scenario: Reverse polarity and transient protection for LIN/CAN transceiver VCC pins and sensor excitation outputs. IC Role / Device Role / Timing Role: Unidirectional clamp between regulated 5 V supply and ground, activated only during negative-going surges or miswiring. Use Value: Enables fail-safe operation under -150 V reverse connection and 10/1000 µs ±2 kV surges per ISO 16750-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150AHE3_A/H | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VWM/VBR/VC specs | Reduced surge handling for space-constrained consumer or telecom modules where 1500 W is not required | Select when board area is limited and peak surge energy remains below 600 W |
| SMCJ150AHE3_A/H | Same electrical specs and package, but RoHS-compliant commercial grade (E3) instead of halogen-free (HM3) | No AEC-Q101 qualification; suitable for non-automotive industrial or computing applications | Select when halogen-free requirement is absent and automotive qualification is unnecessary |
Compared with SMCJ150AHM3_A/H, SMBJ150AHE3_A/H trades surge capacity for footprint reduction, while SMCJ150AHE3_A/H retains identical protection performance but omits halogen-free and AEC-Q101 compliance-making it appropriate for cost-sensitive commercial designs without automotive validation needs.
Availability
SMCJ150AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive inputs, and telecom power rail safeguarding requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ150AHM3_A/H 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of the SMCJ150AHM3_A/H under a 10/1000 µs surge?
The SMCJ150AHM3_A/H has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current of 6.2 A under a 10/1000 µs waveform. This value is measured per standard test conditions defined in ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024. The clamping performance ensures protected circuits remain within safe voltage limits during transient events.
Is the SMCJ150AHM3_A/H qualified for automotive applications?
Yes, the SMCJ150AHM3_A/H carries the HM3 suffix, indicating it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-validating its suitability for under-hood and powertrain-related automotive electronics where reliability is critical.
What does the "HM3" suffix mean in SMCJ150AHM3_A/H?
The "HM3" suffix in SMCJ150AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS-compliant commercial grade) and HE3 (AEC-Q101 qualified but not halogen-free). The HM3 version meets automotive material compliance standards including JESD201 Class 2 whisker resistance and UL 94 V-0 flammability rating.
Can the SMCJ150AHM3_A/H be used in bidirectional configurations?
No, the SMCJ150AHM3_A/H is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and presence of cathode band marking. Bidirectional variants use the "CA" suffix (e.g., SMCJ150CA) and lack polarity marking. Using SMCJ150AHM3_A/H in bidirectional applications would result in forward conduction during negative transients, potentially causing failure.
What is the thermal resistance and recommended PCB layout for SMCJ150AHM3_A/H?
The SMCJ150AHM3_A/H 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, as specified in the Vishay datasheet. To achieve rated power dissipation and avoid thermal runaway, designers must implement minimum pad dimensions and consider thermal vias for higher ambient temperature operation.
SMCJ150AHM3_A/H 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/H FAQ
1.How can I place an order for SMCJ150AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150AHM3_A/H 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/H reliable?
The price and inventory of SMCJ150AHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for SMCJ150AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150AHM3_A/H?
SMCJ150AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150AHM3_A/H 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/H?
For technical support, including SMCJ150AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150AHM3_A/H requirements.
6.How does Aetrix verify that SMCJ150AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ150AHM3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of SMCJ150AHM3_A/H?
All SMCJ150AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150AHM3_A/H, 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/H part is unused and in its original packaging.
Return procedure for SMCJ150AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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