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Vishay General Semiconductor - Diodes Division SM6T150AHM3/H
- Part No.:
- SM6T150AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T150AHM3/H.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,857
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Product details
Overview
SM6T150AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMB (DO-214AA) package, with 150 V standoff voltage (VWM), 143–158 V breakdown voltage (VBR), 600 W peak pulse power (10/1000 μs), and clamping voltage of 207 V at 2.9 A. It protects automotive-grade sensor signal lines and MOSFET gates against inductive switching transients.
For engineers reviewing the SM6T150AHM3/H datasheet, SM6T150AHM3/H pinout, SM6T150AHM3/H application, or SM6T150AHM3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low-inductance SMB package, and compliance with JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode operates as a clamping device triggered by reverse-biased avalanche breakdown above its VBR threshold. Its glass-passivated junction ensures stable leakage and robust surge handling under repetitive transient stress.
Designed for high-reliability automotive applications, SM6T150AHM3/H meets AEC-Q101 qualification and features halogen-free, RoHS-compliant construction with matte tin-plated leads solderable per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 143 V / 158 V at 1.0 mA - precise avalanche onset range defining turn-on consistency |
| VC @ IPPM | 207 V at 2.9 A (10/1000 μs) - clamped voltage limiting downstream circuit stress during surge |
| PPPM | 600 W - peak transient energy absorption capability without failure |
| TJ max | +150 °C - enables operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - low-profile, surface-mount footprint compatible with automated assembly |
| Polarity | Unidirectional - cathode marked with band; blocks forward current, clamps reverse surges |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, 0.205" × 0.220" outline, MSL Level 1, LF peak 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge return path | Connected to ground or low-impedance reference; conducts avalanche current during overvoltage events |
| Anode | Protected line connection | Connected to I/O line or power rail being safeguarded; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use with extended temperature cycling, humidity, and mechanical shock testing |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for modern vehicle manufacturing and industrial systems |
| Low-inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses) |
| Glass-passivated junction | Ensures stable VBR tolerance, low leakage (<1 μA at VWM), and long-term reliability under thermal stress |
| 600 W peak pulse rating | Handles high-energy transients from inductive load switching (e.g., fuel injectors, solenoids) |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping reverse transients on 5 V or 12 V sensor supply and signal paths. Use Value: Prevents latch-up or damage to precision ADC inputs and op-amps by limiting clamped voltage to 207 V while maintaining <1 μA leakage at 128 V. | Use Scenario: Safeguarding digital input pins of PLC modules interfacing with 24 V DC solenoid valves subject to inductive kickback. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed at connector entry point to shunt surge energy before reaching logic-level interface ICs. Use Value: Withstands 100 A IFSM and clamps 10/1000 μs surges to ≤207 V, preserving signal integrity and enabling >100,000 cycle reliability. |
| Automotive Power Distribution | Telecom Line Interface |
Use Scenario: Secondary protection on fused 12 V distribution rails feeding body control modules, reducing risk of cascading failure during battery reversal or jump-start events. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing residual energy after primary fuse or polymer PTC activation. Use Value: 128 V VWM allows normal operation across full automotive battery range (9–16 V), while 600 W PPPM handles sustained load-dump energy per ISO 16750-2. | Use Scenario: Overvoltage protection on RS-485 transceiver bus lines in outdoor base stations vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to local ground, suppressing common-mode transients coupled onto differential pairs. Use Value: Low 20 Ω dynamic impedance and 207 V VC ensure transceiver ICs remain within absolute maximum ratings even during 4 kV EFT bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A | Same VWM/VBR/VC specs but rated at 400 W PPPM; SMA package (larger footprint, higher RθJA) | Lacks AEC-Q101 qualification; not validated for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and lower surge margin is acceptable |
| SMCJ150A | Same VWM/VBR/VC but rated at 1500 W PPPM; SMC package (higher thermal mass, larger PCB area) | Higher clamping voltage (243 V) reduces system-level protection margin despite higher power rating | Choose when protecting high-energy circuits like motor controllers where 1500 W dissipation is required |
Compared with SMAJ150A and SMCJ150A, SM6T150AHM3/H delivers optimal balance of AEC-Q101 compliance, 600 W surge capacity, and compact SMB footprint-making it ideal for space-constrained automotive ECUs where qualification and thermal performance are jointly critical.
Availability
SM6T150AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive I/O, and telecom line interface applications requiring stable component supply and long-term lifecycle support.
Supply support for SM6T150AHM3/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 SM6T Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where AEC-Q101 qualification, low leakage, and repeatable clamping are mandatory design requirements.
FAQ
What is the maximum clamping voltage of SM6T150AHM3/H under standard test conditions?
The SM6T150AHM3/H has a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000 μs waveform at 2.9 A peak pulse current. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping performance is guaranteed across the full operating temperature range and supports reliable protection of downstream components such as microcontrollers and transceivers.
Is SM6T150AHM3/H qualified for automotive applications?
Yes, SM6T150AHM3/H is AEC-Q101 qualified, as indicated by the "HM3" suffix denoting halogen-free, RoHS-compliant, and automotive-grade construction. It undergoes rigorous stress testing including temperature cycling, humidity bias, and mechanical shock per AEC-Q101 requirements. This qualification makes SM6T150AHM3/H suitable for under-hood and cabin electronics where reliability under thermal and vibration stress is essential.
What does the "H" in SM6T150AHM3/H signify in the ordering code?
The "H" in SM6T150AHM3/H specifies the preferred package code for 7-inch diameter plastic tape and reel delivery, containing 750 units per reel. This packaging format is optimized for high-speed pick-and-place assembly and aligns with industry-standard SMT production workflows. The full ordering code confirms halogen-free material content and AEC-Q101 qualification, ensuring consistent compliance across manufacturing lots.
How does the SMB package of SM6T150AHM3/H compare to SMA or SMC in terms of thermal performance?
SM6T150AHM3/H in SMB (DO-214AA) package has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, higher than SMA (~80 °C/W) and significantly higher than SMC (~50 °C/W). However, its 600 W PPPM rating is achieved with recommended 0.2" × 0.2" copper pads. For high-duty-cycle surge environments, thermal relief via internal copper planes or external heatsinking may be needed-unlike SMC variants which inherently dissipate heat more effectively due to larger pad area and mass.
Can SM6T150AHM3/H be used in bidirectional configurations?
No, SM6T150AHM3/H is strictly unidirectional, as confirmed by its part number suffix "A" and cathode band marking. Bidirectional versions require the "CA" suffix (e.g., SM6T150CA). Using SM6T150AHM3/H in bidirectional circuits would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always verify polarity alignment during PCB layout and select CA-suffixed parts for AC-coupled or symmetrical surge protection.
SM6T150AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T150AHM3/H FAQ
1.How can I place an order for SM6T150AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T150AHM3/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 SM6T150AHM3/H reliable?
The price and inventory of SM6T150AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T150AHM3/H is usually 5 days.
3.What payment methods are accepted for SM6T150AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T150AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T150AHM3/H?
SM6T150AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T150AHM3/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 SM6T150AHM3/H?
For technical support, including SM6T150AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T150AHM3/H requirements.
6.How does Aetrix verify that SM6T150AHM3/H is sourced from the original manufacturer or authorized distributors?
All SM6T150AHM3/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 SM6T150AHM3/H meets industry standards.
7.What is the process for return or replacement of SM6T150AHM3/H?
All SM6T150AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T150AHM3/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 SM6T150AHM3/H part is unused and in its original packaging.
Return procedure for SM6T150AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T150AHM3/H Tags
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