My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T150AHM3_A/H
- Part No.:
- SM6T150AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T150AHM3_A/H.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,458
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T150AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 150 V standoff voltage (VWM), 207 V clamping voltage (VC) at 2.9 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects MOSFETs and sensor signal lines in automotive powertrain control modules against inductive switching transients.
For engineers reviewing the SM6T150AHM3_A/H datasheet, SM6T150AHM3_A/H pinout, SM6T150AHM3_A/H application, or SM6T150AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs surge, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown behavior and low leakage (<1.0 μA at 128 V). Its design targets fast response to sub-microsecond transients while maintaining low dynamic impedance during clamping.
The device is qualified to AEC-Q101 for automotive use and features halogen-free, RoHS-compliant construction with matte tin-plated leads solderable per J-STD-002. Thermal performance is specified with RθJL = 20 °C/W and maximum junction temperature of +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 143 V / 158 V at 1.0 mA - Confirmed breakdown threshold range for reliable turn-on margin |
| VC @ IPPM | 207 V at 2.9 A (10/1000 μs) - Clamping voltage limiting downstream circuit stress during surge events |
| PPPM | 600 W - Peak transient energy absorption capability under standardized 10/1000 μs waveform |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance defining derating above 25 °C ambient |
| TJ max. | +150 °C - Absolute maximum junction temperature supporting under-hood automotive deployment |
| Polarity | Unidirectional - Cathode band identifies terminal requiring connection to protected line's ground reference |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Clamping output node | Connected to protected signal line; conducts surge current to ground when V > VBR |
| Anode | Reference node | Connected to system ground plane; completes clamping path during transient overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems |
| AEC-Q101 qualified | Validated reliability for automotive powertrain, body control, and ADAS ECU applications |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., load dump, relay bounce) |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance requirements including GMW3172 and Ford WSS-M99P9999-A1 |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppressing inductive kickback from fuel injector solenoids and ignition coils in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS placed across coil driver outputs to clamp reverse EMF spikes before they reach gate drivers or microcontrollers. Use Value: Prevents latch-up or permanent damage to high-side/low-side FETs by limiting transient voltage to ≤207 V during 10/1000 μs surges. | Use Scenario: Protecting encoder feedback lines and gate drive signals in variable-frequency drives exposed to motor cable reflections. IC Role / Device Role / Timing Role: Point-of-load TVS on differential RS-422 or analog position sensor inputs to absorb coupled noise from IGBT switching edges. Use Value: Maintains signal integrity by clamping transients to <210 V while adding <0.5 pF capacitance, avoiding timing skew in high-speed feedback loops. |
| Automotive Body Electronics | Telecom Power Supply Input |
Use Scenario: Safeguarding LIN bus transceivers and window lift motor H-bridge controllers against battery reverse connection and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply rail feeding body control module ICs. Use Value: Withstands 100 A IFSM surge and maintains VWM = 128 V, allowing safe operation during 14 V nominal and 16 V load-dump conditions. | Use Scenario: Front-end transient suppression on AC/DC adapter DC output rails feeding base station RF amplifiers. IC Role / Device Role / Timing Role: Secondary-stage TVS after bulk filtering to catch residual surges escaping upstream MOVs or gas discharge tubes. Use Value: Delivers precise 207 V clamping with ±5 % VBR tolerance, ensuring downstream DC-DC converters remain within absolute maximum ratings during lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/5B | Same VWM/VBR/VC specs but SMA package (higher RθJA = 150 °C/W); no AEC-Q101 qualification | Not suitable for under-hood automotive; limited to commercial-grade industrial or telecom use | Select when cost sensitivity outweighs thermal or automotive qualification requirements |
| 1.5SMC150AHE3_A | Same electrical specs but SMC package (larger footprint, lower RθJA = 60 °C/W); AEC-Q101 qualified | Requires PCB area increase (~3× SMB); preferred where higher surge repetition rate or thermal margin is critical | Select when sustained surge duty cycle exceeds 1 Hz or ambient exceeds 85 °C |
Compared with SMAJ150A-E3/5B and 1.5SMC150AHE3_A, SM6T150AHM3_A/H uniquely balances AEC-Q101 compliance, SMB footprint efficiency, and 100 °C/W thermal resistance-making it optimal for space-constrained automotive ECUs needing validated reliability without board rework.
Availability
SM6T150AHM3_A/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom power supply input applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SM6T150AHM3_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, and protection devices with emphasis on automotive, industrial, and computing markets.
The SM6T Series is designed specifically for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, halogen-free materials, and optimized SMB packaging for automated manufacturing.
FAQ
What is the clamping voltage of SM6T150AHM3_A/H under a 10/1000 μs surge?
The SM6T150AHM3_A/H has a maximum clamping voltage (VC) of 207 V when subjected to a 2.9 A peak pulse current with a 10/1000 μs waveform. This value is measured per Figure 1 in the official Vishay datasheet (Doc. #88385, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuits during standardized surge events. The SM6T150AHM3_A/H maintains this clamping performance across its qualified operating temperature range.
Is SM6T150AHM3_A/H qualified for automotive applications?
Yes, SM6T150AHM3_A/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's SM6T Series datasheet (Rev. 09-Jan-2024). The "HM3" designation indicates halogen-free, RoHS-compliant construction with full AEC-Q101 stress testing-including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This makes SM6T150AHM3_A/H suitable for under-hood automotive ECUs where reliability under thermal and mechanical stress is mandatory.
What is the standoff voltage (VWM) rating for SM6T150AHM3_A/H?
The standoff voltage (VWM) for SM6T150AHM3_A/H is 128 V, representing the maximum continuous reverse voltage the device can withstand without entering breakdown. This value is specified in the Electrical Characteristics table of the Vishay SM6T datasheet (Doc. #88385) and ensures compatibility with 12 V automotive systems experiencing up to 16 V load-dump conditions. The SM6T150AHM3_A/H remains non-conductive below this threshold, minimizing leakage current (<1.0 μA) in normal operation.
What package type does SM6T150AHM3_A/H use?
SM6T150AHM3_A/H uses the SMB (DO-214AA) surface-mount package, as documented in the Mechanical Data section of Vishay's SM6T Series datasheet. The SMB outline features a low-profile, gull-wing lead configuration with 5.59 mm × 4.06 mm body dimensions and 2.20 mm height, optimized for automated pick-and-place and reflow soldering. The package meets UL 94 V-0 flammability and JESD 201 Class 2 whisker resistance standards.
Does SM6T150AHM3_A/H have bidirectional capability?
No, SM6T150AHM3_A/H is a unidirectional transient voltage suppressor, indicated by the absence of "CA" suffix and presence of cathode band marking. Its electrical characteristics-including breakdown voltage (VBR), clamping voltage (VC), and leakage current-are defined only for reverse-biased operation. Bidirectional variants in the SM6T family use the "CA" suffix (e.g., SM6T150CA), whereas SM6T150AHM3_A/H is strictly unidirectional and must be oriented with the banded end toward the protected line.
SM6T150AHM3_A/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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for SM6T150AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T150AHM3_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 SM6T150AHM3_A/H reliable?
The price and inventory of SM6T150AHM3_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 SM6T150AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T150AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T150AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T150AHM3_A/H?
SM6T150AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T150AHM3_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 SM6T150AHM3_A/H?
For technical support, including SM6T150AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T150AHM3_A/H requirements.
6.How does Aetrix verify that SM6T150AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T150AHM3_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 SM6T150AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T150AHM3_A/H?
All SM6T150AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T150AHM3_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 SM6T150AHM3_A/H part is unused and in its original packaging.
Return procedure for SM6T150AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T150AHM3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
