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Vishay General Semiconductor - Diodes Division SMCJ150AHM3/H
- Part No.:
- SMCJ150AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ150AHM3/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,214
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Product details
Overview
SMCJ150AHM3/H 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, 243 V clamping voltage at 6.2 A peak pulse current, and 1500 W peak pulse power rating under 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive power systems and industrial control interfaces.
For engineers reviewing the SMCJ150AHM3/H datasheet, SMCJ150AHM3/H pinout, SMCJ150AHM3/H application, or SMCJ150AHM3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 75 °C/W), and junction temperature range (–55 to +150 °C).
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its 150 V stand-off voltage (VWM) and rapidly transitions to low-impedance conduction above its 167–185 V breakdown voltage (VBR), limiting transient voltages to ≤243 V at rated surge current. Its glass-passivated junction ensures stable avalanche performance and fast response time (<1 ns).
Designed for automated SMT assembly, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), JEDEC whisker Class 2, and UL 497B recognition (QVGQ2). The matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, with polarity indicated by cathode band marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VBR min/max | 167 V / 185 V at 1.0 mA test current - Ensures reliable turn-on margin above VWM |
| VC @ IPPM | 243 V at 6.2 A - Clamped voltage during 10/1000 µs surge, defining protected circuit's max overvoltage |
| PPPM | 1500 W - Peak pulse power handling capability, critical for lightning and EFT immunity |
| TJ range | –55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on standard 8 mm × 8 mm copper pads |
| Package | SMC (DO-214AB) - Industry-standard 2-pin surface-mount outline, compatible with automated pick-and-place |
Pinout & Package
SMCJ150AHM3/H uses the SMC (DO-214AB) package: 2-terminal surface-mount device with cathode marked by a band on one end. Leads are matte tin-plated, compliant with J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection in reverse-biased protection configuration | Connected to protected line (e.g., power rail or signal); conducts when transient exceeds VBR |
| Anode (unmarked end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Halogen-free & RoHS-compliant | HM3 suffix confirms halogen-free molding compound and lead finish, meeting environmental compliance mandates |
| Low incremental surge resistance | Enables tighter clamping (VC – VBR ≈ 76 V) and higher energy absorption efficiency |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns, reducing manufacturing risk |
| Glass passivated junction | Provides stable, repeatable avalanche characteristics and long-term parameter stability under surge stress |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges exceeding 150 V. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤243 V, preventing latch-up or gate oxide damage. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted across sensor output and reference ground to suppress ESD and inductive switching noise. Use Value: Maintains signal integrity by clamping transients before they distort 4–20 mA or 0–10 V outputs, ensuring measurement accuracy. |
| Telecom DC Power Input Protection | OEM Motor Drive Gate Driver Protection |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges on central office equipment. IC Role / Device Role / Timing Role: Unidirectional TVS installed at input stage to absorb 1500 W pulses while maintaining low leakage at nominal voltage. Use Value: Prevents failure of upstream rectifiers and downstream PMICs during Category A/B surge events per IEC 61000-4-5. | Use Scenario: Shielding high-side gate drivers in BLDC inverters from Miller-induced voltage spikes during MOSFET switching. IC Role / Device Role / Timing Role: TVS placed between gate and source terminals to clamp dv/dt-induced overshoots exceeding 150 V. Use Value: Avoids false turn-on or gate oxide breakdown in 650 V Si MOSFETs, improving inverter reliability and MTBF. |
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-M3/H | Lower PPPM (600 W), same VWM/VC, SMB package (smaller footprint, higher RθJA) | Suitable for space-constrained consumer electronics where 1500 W surge margin is not required | Select when board area is limited and surge threat level is lower (e.g., IEC 61000-4-2 ESD only) |
| SMCJ150AHE3/H | Same electrical specs, but RoHS-compliant commercial grade (non-halogen-free, no AEC-Q101) | Applicable in non-automotive industrial or computing designs without halogen-free mandate | Choose for cost-sensitive applications where AEC-Q101 and halogen-free are not required |
Compared with SMCJ150AHM3/H, SMBJ150A-M3/H trades surge capacity for compactness, while SMCJ150AHE3/H retains full electrical performance but omits halogen-free and automotive qualification-making SMCJ150AHM3/H the optimal choice for AEC-Q101-compliant, environmentally regulated automotive power systems.
Availability
SMCJ150AHM3/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across production lifecycles.
Supply support for SMCJ150AHM3/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, 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 infrastructure where robustness against ISO 7637, IEC 61000-4-5, and ESD threats is mandatory.
FAQ
What does the "HM3" suffix indicate in SMCJ150AHM3/H?
The HM3 suffix in SMCJ150AHM3/H denotes halogen-free, RoHS-compliant construction and AEC-Q101 qualification. It specifies matte tin-plated leads, JESD 201 Class 2 whisker resistance, and compliance with automotive reliability standards-including temperature cycling, high-temperature reverse bias, and mechanical shock testing-making SMCJ150AHM3/H suitable for under-hood and safety-critical vehicle systems.
How does SMCJ150AHM3/H differ from SMCJ150AHE3/H?
SMCJ150AHM3/H and SMCJ150AHE3/H share identical electrical parameters (VWM = 150 V, VC = 243 V, PPPM = 1500 W) and SMC package, but SMCJ150AHM3/H uses halogen-free molding compound and is AEC-Q101 qualified, whereas SMCJ150AHE3/H is RoHS-compliant but not halogen-free or automotive-qualified. SMCJ150AHM3/H is required for Tier 1 automotive BOMs with strict material and reliability mandates.
What is the maximum clamping voltage of SMCJ150AHM3/H and under what test condition?
The maximum clamping voltage of SMCJ150AHM3/H is 243 V, measured at 6.2 A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential surge waveform. This value defines the upper voltage limit imposed on protected circuits during worst-case transient events and is validated per ANSI/IEEE C62.35 and IEC 61000-4-5 test conditions.
Can SMCJ150AHM3/H be used in bidirectional configurations?
No, SMCJ150AHM3/H is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the CA-suffixed variant (e.g., SMCJ150CA). Using SMCJ150AHM3/H in reverse-biased AC or symmetrical transient scenarios would result in forward conduction and potential failure; always match polarity to circuit topology and select SMCJ150CA for bidirectional protection needs.
What PCB layout guidance applies to SMCJ150AHM3/H for optimal thermal and surge performance?
For optimal performance, mount SMCJ150AHM3/H on minimum 8.0 mm × 8.0 mm copper pads per terminal to achieve specified RθJA = 75 °C/W and sustain 1500 W surge ratings. Keep traces short and wide between the TVS and protected node/ground, avoid vias in high-current paths, and ensure solid ground plane connection to minimize inductance-critical for sub-100 ns transient response and effective clamping of fast-rising ESD or EFT events.
SMCJ150AHM3/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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for SMCJ150AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ150AHM3/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/H reliable?
The price and inventory of SMCJ150AHM3/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/H is usually 5 days.
3.What payment methods are accepted for SMCJ150AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ150AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ150AHM3/H?
SMCJ150AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ150AHM3/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/H?
For technical support, including SMCJ150AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ150AHM3/H requirements.
6.How does Aetrix verify that SMCJ150AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ150AHM3/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/H meets industry standards.
7.What is the process for return or replacement of SMCJ150AHM3/H?
All SMCJ150AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ150AHM3/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/H part is unused and in its original packaging.
Return procedure for SMCJ150AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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