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Vishay General Semiconductor - Diodes Division SM6T150AHM3_A/I
- Part No.:
- SM6T150AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T150AHM3_A/I.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,688
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Product details
Overview
SM6T150AHM3_A/I 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 maximum clamping voltage (VC) at 2.9 A IPPM, and 600 W peak pulse power with 10/1000 μs waveform. It features glass passivated junction, AEC-Q101 qualification, and is used to protect automotive sensor signal lines against inductive switching transients.
For engineers reviewing the SM6T150AHM3_A/I datasheet, SM6T150AHM3_A/I pinout, SM6T150AHM3_A/I application, or SM6T150AHM3_A/I equivalent, key selection criteria include clamping performance under 10/1000 μs surge, unidirectional polarity with cathode band marking, halogen-free RoHS compliance, and MSL level 1 reflow capability at 260 °C peak.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, triggering when reverse voltage exceeds its 143–158 V breakdown range (VBR at 1 mA). Its low-inductance SMB package enables fast response to ESD and lightning-induced surges while maintaining stable clamping up to 207 V at 2.9 A.
Designed for automotive-grade reliability, SM6T150AHM3_A/I meets AEC-Q101 stress testing requirements and supports operation from –65 °C to +150 °C junction temperature. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling robust power dissipation on standard PCB copper pads.
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 mA - Confirmed breakdown threshold defining turn-on precision |
| VC @ IPPM | 207 V at 2.9 A (10/1000 μs) - Clamping voltage limiting downstream IC stress during surge events |
| PPPM | 600 W - Peak transient energy absorption capacity per single 10/1000 μs pulse |
| ID @ VWM | 1.0 μA - Reverse leakage current ensuring minimal standby power loss and signal integrity |
| TJ max | +150 °C - Maximum junction temperature supporting under-hood automotive deployment |
| MSL Level | Level 1 (J-STD-020) - Supports lead-free reflow up to 260 °C peak without moisture-related damage |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional protection configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line; conducts surge current to ground when VLINE > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables reliable suppression of ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems |
| AEC-Q101 qualified | Validated for automotive electronics including engine control modules and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term stability and low parameter drift under thermal cycling and humidity exposure |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (< 1 ns rise time) |
| Halogen-free & RoHS-compliant | Meets automotive OEM environmental requirements and supports green manufacturing initiatives |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional shunt TVS providing sub-100 ns clamping response to limit voltage excursion below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during 12 V system transients up to ±100 V. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff-mode protector placed between field wiring and optocoupler input, conducting only during overvoltage events. Use Value: Maintains signal integrity across 0–24 V DC inputs while surviving repeated 600 W surges per IEC 61000-4-5. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: Primary-level TVS in series with gas discharge tube (GDT) for coordinated two-stage protection. Use Value: Clamps induced common-mode transients to < 210 V before secondary protection activates, extending GDT lifetime. |
Use Scenario: Adding robust ESD immunity to USB-C and barrel jack inputs in AC/DC adapters certified to IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Fast-response clamp on DC output rail, absorbing 8 kV contact / 15 kV air discharge events. Use Value: Eliminates need for external RC filters by achieving < 1 ns response and < 220 V clamping at 30 A TLP. |
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 (128 V), higher VC (243 V at 2.5 A), non-AEC-Q101, standard RoHS (not halogen-free) | Lacks automotive qualification; suitable for industrial/commercial designs without AEC compliance mandates | Select SMAJ150A-E3/5B when halogen-free content and automotive qualification are not required and board space allows SMA package |
| 1.5SMC150AHE3_A | Same VWM (128 V), identical VC (207 V at 2.9 A), AEC-Q101 qualified, but SMC (DO-214AB) package - 2.6 mm wider body | Requires larger PCB footprint; higher thermal mass improves sustained surge handling but reduces layout flexibility | Choose 1.5SMC150AHE3_A only if higher IPPM margin (> 3.5 A) or improved thermal derating is needed and SMC footprint is acceptable |
Compared with SMAJ150A-E3/5B and 1.5SMC150AHE3_A, SM6T150AHM3_A/I delivers identical clamping performance in a smaller SMB footprint with halogen-free construction and full AEC-Q101 validation-making it optimal for space-constrained, automotive-grade designs requiring strict material compliance.
Availability
SM6T150AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter ESD hardening requiring stable component supply and long-term lifecycle support.
Supply support for SM6T150AHM3_A/I 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 high-reliability, automotive-qualified components.
The SM6T Series is designed specifically for robust transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where consistent clamping, AEC-Q101 validation, and halogen-free compliance are mandatory.
FAQ
What is the breakdown voltage tolerance for SM6T150AHM3_A/I?
The SM6T150AHM3_A/I has a specified breakdown voltage (VBR) range of 143 V to 158 V at 1 mA test current, representing a ±5 % tolerance around the nominal 150 V rating. This tight distribution ensures predictable turn-on behavior across production lots and supports reliable design margining in automotive protection circuits.
Is SM6T150AHM3_A/I compatible with lead-free reflow processes?
Yes, SM6T150AHM3_A/I meets MSL level 1 per J-STD-020 and is qualified for lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102, ensuring reliable solder joint formation without voiding or dewetting.
Does SM6T150AHM3_A/I support bidirectional transient suppression?
No, SM6T150AHM3_A/I is a unidirectional TVS diode. Bidirectional variants in the SM6T family use the "CA" suffix (e.g., SM6T150CA). The "A" suffix and cathode band marking confirm unidirectional polarity, intended for DC line protection where reverse conduction must be blocked.
What is the maximum clamping voltage of SM6T150AHM3_A/I under standard test conditions?
The maximum clamping voltage (VC) of SM6T150AHM3_A/I is 207 V when subjected to a 10/1000 μs surge waveform at 2.9 A peak pulse current. This value is measured per Fig. 1 and Table 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the halogen-free status of SM6T150AHM3_A/I impact its compliance profile?
The "HM3" suffix in SM6T150AHM3_A/I explicitly denotes halogen-free, RoHS-compliant construction per JEDEC standards and Vishay's material categorization doc 99912. This satisfies Tier 1 automotive OEM requirements (e.g., GMW3172, Ford WSS-M99P1111-A) and eliminates brominated flame retardants without compromising UL 94 V-0 flammability rating.
SM6T150AHM3_A/I 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/I FAQ
1.How can I place an order for SM6T150AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T150AHM3_A/I 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/I reliable?
The price and inventory of SM6T150AHM3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for SM6T150AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T150AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T150AHM3_A/I?
SM6T150AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T150AHM3_A/I 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/I?
For technical support, including SM6T150AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T150AHM3_A/I requirements.
6.How does Aetrix verify that SM6T150AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T150AHM3_A/I 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/I meets industry standards.
7.What is the process for return or replacement of SM6T150AHM3_A/I?
All SM6T150AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T150AHM3_A/I, 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/I part is unused and in its original packaging.
Return procedure for SM6T150AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T150AHM3_A/I Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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