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Vishay General Semiconductor - Diodes Division SMBJ150AHM3/H
- Part No.:
- SMBJ150AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150AHM3/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,607
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Product details
Overview
SMBJ150AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤243 V at 2.5 A peak surge current - used for protecting MOSFETs, ICs, and sensor interfaces in industrial motor drives and telecom power supplies.
For engineers reviewing the SMBJ150AHM3/H datasheet, SMBJ150AHM3/H pinout, SMBJ150AHM3/H application, or SMBJ150AHM3/H equivalent, key selection criteria include unidirectional polarity, halogen-free RoHS-compliant construction (HM3 suffix), AEC-Q101 qualification readiness, and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, conducting only when reverse voltage exceeds VBR to divert transient energy away from downstream components. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables tight clamping during fast transients.
The SMBJ150AHM3/H is rated for repetitive 10/1000 µs surges at 0.01% duty cycle and supports peak forward surge current of 100 A (8.3 ms half-sine). Junction temperature range spans −55 °C to +150 °C, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
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 IT = 1 mA - guaranteed breakdown window defining clamping onset threshold |
| VC @ IPPM | 243 V at 2.5 A - clamped voltage during 10/1000 µs transient, limiting stress on protected ICs |
| PPPM | 600 W - peak transient power handling capability under standardized waveform |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves system efficiency and signal integrity |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
| Polarity | Unidirectional - cathode marked by band; blocks forward current until VBR exceeded in reverse |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes conduction loop during transient clamp |
| Cathode | High-side connection point | Connected to protected line (e.g., 150 V rail); band-marked end defines polarity orientation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges without derating on standard layouts |
| Glass passivated chip junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives |
| AEC-Q101 qualified option (HM3 suffix) | Supports automotive-grade deployment where qualification evidence is contractually required |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and allows standard SMT assembly without baking |
| Halogen-free & RoHS-compliant | Fulfills environmental compliance mandates for EU, China RoHS, and JEITA standards |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and DC-link sensing circuits against switching-induced voltage spikes in 3-phase inverters. IC Role / Device Role: Unidirectional TVS placed across high-side gate resistor or across shunt monitor inputs. Use Value: Clamps transients to ≤243 V, preventing latch-up or oxide damage in SiC MOSFET drivers operating at 150 V bus. |
Use Scenario: Input-stage surge suppression on 48 V primary rails subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role: Primary-line TVS connected between +48 V and GND ahead of DC/DC converter input filter. Use Value: Absorbs 600 W pulses without degradation, maintaining <1 µA leakage to avoid standby power penalty. |
| Automotive Body Control Modules | Industrial Sensor Interfaces |
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load-dump and jump-start transients. IC Role / Device Role: Unidirectional TVS on VBAT-supplied I/O lines with cathode tied to 150 V-rated supply rail. Use Value: HM3 suffix confirms halogen-free and AEC-Q101-ready construction for under-hood deployment. |
Use Scenario: Shielding analog front-end inputs of pressure/temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role: Low-leakage TVS on signal lines (e.g., 4–20 mA loop or RS-485 bias rails). Use Value: 1.0 µA max ID at 150 V ensures minimal offset error in precision measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-M3/52 | Same electrical specs; RoHS-compliant but not halogen-free; no AEC-Q101 qualification path | Acceptable for commercial/industrial use where halogen-free or automotive qualification is not mandated | Select when cost sensitivity outweighs material compliance or qualification requirements |
| 1.5SMC150AHE3_A/H | Same VWM/VBR/PPPM; SMC (DO-214AB) package - larger footprint (7.11 mm × 6.22 mm), higher RθJA (60 °C/W) | Better thermal performance under high-repetition surges; requires larger PCB area and different stencil design | Choose when sustained surge duty cycles exceed 0.01% or board space permits larger package |
Compared with SMBJ150AHM3/H, the M3/52 variant trades halogen-free content for lower unit cost, while the 1.5SMC150AHE3_A/H offers superior thermal dissipation at the expense of board area and assembly compatibility - neither is pin-compatible due to differing package outlines.
Availability
SMBJ150AHM3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor interfaces requiring stable component supply with halogen-free and AEC-Q101-aligned sourcing.
Supply support for SMBJ150AHM3/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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The SMBJ series targets high-energy transient suppression in space-constrained applications, with design focus on fast response, low clamping voltage, and robust surge endurance for industrial and automotive systems.
FAQ
What is the breakdown voltage range for SMBJ150AHM3/H?
The SMBJ150AHM3/H 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. This window ensures consistent clamping onset across production lots and supports reliable coordination with downstream overvoltage thresholds in protected circuits.
Is SMBJ150AHM3/H suitable for automotive applications?
Yes - the HM3 suffix denotes halogen-free, RoHS-compliant construction and AEC-Q101 qualification readiness. While SMBJ150AHM3/H itself is not pre-certified, it belongs to a family qualified per AEC-Q101, and Vishay provides full qualification documentation upon request for automotive program validation.
What is the maximum clamping voltage of SMBJ150AHM3/H under surge conditions?
The SMBJ150AHM3/H clamps to a maximum of 243 V at its rated peak pulse current (IPPM = 2.5 A) under the standardized 10/1000 µs waveform. This value is confirmed in the Vishay datasheet (Document Number: 88392, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during transient events.
Does SMBJ150AHM3/H have bidirectional capability?
No - SMBJ150AHM3/H is strictly unidirectional. Its cathode is marked by a band, and it conducts only when reverse-biased beyond VBR. For bidirectional operation, Vishay specifies part numbers with "CA" suffix (e.g., SMBJ150CA), which are functionally distinct and not interchangeable with SMBJ150AHM3/H.
What is the thermal resistance of SMBJ150AHM3/H, and how does it affect layout?
SMBJ150AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under repeated surges, PCB layout must replicate this minimum pad area - reducing pad size increases RθJA and risks thermal runaway during high-duty-cycle transients.
SMBJ150AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 2.5A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
SMBJ150AHM3/H FAQ
1.How can I place an order for SMBJ150AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150AHM3/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 SMBJ150AHM3/H reliable?
The price and inventory of SMBJ150AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150AHM3/H is usually 5 days.
3.What payment methods are accepted for SMBJ150AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150AHM3/H?
SMBJ150AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150AHM3/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 SMBJ150AHM3/H?
For technical support, including SMBJ150AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150AHM3/H requirements.
6.How does Aetrix verify that SMBJ150AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ150AHM3/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 SMBJ150AHM3/H meets industry standards.
7.What is the process for return or replacement of SMBJ150AHM3/H?
All SMBJ150AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150AHM3/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 SMBJ150AHM3/H part is unused and in its original packaging.
Return procedure for SMBJ150AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150AHM3/H Tags
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