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Vishay General Semiconductor - Diodes Division SM6T150AHE3_A/I
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- Part No.:
- SM6T150AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T150AHE3_A/I.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,910
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Product details
Overview
SM6T150AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 128 V stand-off voltage (VWM), 143–158 V breakdown voltage (VBR at 1 mA), 207 V maximum clamping voltage (VC) at 2.9 A (10/1000 μs), 600 W peak pulse power, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SM6T150AHE3_A/I datasheet, SM6T150AHE3_A/I pinout, SM6T150AHE3_A/I application, or SM6T150AHE3_A/I equivalent, key selection criteria include clamping performance under 10/1000 μs surge, unidirectional polarity with cathode band marking, SMB thermal resistance (RθJA = 100 °C/W), and compliance with automotive reliability standards.
Technical Context
This TVS diode operates as a fast-acting shunt protector, triggering when reverse voltage exceeds VBR to divert transient energy away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM), while low-inductance SMB construction supports effective suppression of high-dI/dt events.
The device is rated for non-repetitive peak pulse current up to 2.9 A (10/1000 μs), derates linearly above 25 °C ambient, and maintains operation across -65 °C to +150 °C junction temperature range. It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 128 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 143 V / 158 V at 1 mA - Ensures reliable turn-on margin above system operating voltage |
| VC @ IPPM | 207 V at 2.9 A (10/1000 μs) - Clamping voltage limiting stress on protected circuitry |
| PPPM | 600 W - Peak surge power handling capability per standard waveform |
| IFSM | 100 A - Surge current rating for 10 ms half-sine wave (unidirectional only) |
| TJ range | -65 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by molded band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return in unidirectional clamp configuration |
| Cathode | Reverse voltage sensing / Clamping node | Connected to protected line; conducts when VAK > VBR, shunting surge to anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge test levels |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream MOSFETs or microcontrollers during transients |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free assembly without moisture sensitivity concerns |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and inductive switching spikes in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp transients exceeding 128 V. Use Value: Limits peak voltage to 207 V during 2.9 A surges, preventing damage to 3.3 V/5 V logic and CAN transceivers downstream. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD and cable discharge events on 4–20 mA or 0–10 V signal lines. Use Value: Sub-100 ns response time and <1 μA leakage at 128 V ensure minimal signal distortion and long-term calibration stability. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Guarding PoE-powered network switches and base stations against lightning-induced surges on 48 V DC input rails. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converters, sized for 600 W pulse handling per IEEE C62.41.2. Use Value: 207 V clamping at 2.9 A enables robust protection without requiring oversized downstream filtering components. | Use Scenario: Suppressing back-EMF from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Mounted across motor terminals or H-bridge outputs to clamp inductive kickback during PWM commutation. Use Value: 100 A IFSM rating supports repeated motor startup surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/52 | Same SMB package, 150 V VWM, but lower PPPM (400 W) and higher VC (243 V at 2.5 A) | Limited to less severe surge environments; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification or 600 W headroom needs |
| 1.5SMC150A | Higher-power SMC package (1500 W), same VWM/VBR, but larger footprint and higher RθJA (60 °C/W) | Used where PCB space allows and higher surge margin is required beyond 600 W | Choose for industrial UPS or solar inverters needing extended surge endurance |
Compared with SMAJ150A-E3/52 and 1.5SMC150A, SM6T150AHE3_A/I delivers optimal balance of automotive qualification, 600 W surge capacity, and SMB footprint-making it preferred for space-constrained, high-reliability automotive and industrial control designs where consistent clamping and process compatibility are critical.
Availability
SM6T150AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and consumer appliance motor drives requiring stable component supply and AEC-Q101 compliance.
Supply support for SM6T150AHE3_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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where precise clamping, low leakage, and AEC-Q101 validation are mandatory design requirements.
FAQ
What is the clamping voltage of SM6T150AHE3_A/I under a 10/1000 μs surge?
The SM6T150AHE3_A/I 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 standard test conditions defined in the Vishay datasheet and reflects the upper limit of voltage seen by protected circuitry during such transients. The SM6T150AHE3_A/I maintains this clamping performance across its specified operating temperature range.
Is SM6T150AHE3_A/I qualified for automotive applications?
Yes, SM6T150AHE3_A/I is AEC-Q101 qualified, as confirmed by its HE3 suffix and explicit listing in Vishay's automotive-grade ordering codes. It is intended for use in automotive subsystems including body control modules, infotainment power supplies, and ADAS sensor interfaces where reliability under temperature cycling, vibration, and surge stress is critical. The SM6T150AHE3_A/I meets all required stress tests per AEC-Q101 Rev D.
What does the "HE3" and "_A/I" suffix mean in SM6T150AHE3_A/I?
The "HE3" suffix indicates RoHS-compliant and AEC-Q101 qualified construction, while "_A/I" denotes revision code "A" and tape-and-reel packaging in 13-inch reels (3200 units per reel). This full designation confirms the SM6T150AHE3_A/I part meets automotive reliability standards and ships in industry-standard high-volume packaging for automated assembly.
What is the thermal resistance of SM6T150AHE3_A/I?
The SM6T150AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" x 0.2" copper pads per JEDEC standards. Its junction-to-lead resistance (RθJL) is 20 °C/W. These values define power derating behavior above 25 °C ambient and inform layout decisions for thermal management in high-reliability applications using the SM6T150AHE3_A/I.
How does SM6T150AHE3_A/I differ from bidirectional variants like SM6T150CA?
The SM6T150AHE3_A/I is unidirectional, with polarity marked by a cathode band and intended for DC line protection where reverse voltage blocking is required. In contrast, SM6T150CA is bidirectional, lacks polarity marking, and protects AC or differential signals. Their VBR and VC values differ slightly due to internal structure-SM6T150AHE3_A/I has 143–158 V VBR, while SM6T150CA specifies symmetric breakdown in both directions. Circuit placement and grounding strategy must match the polarity of the SM6T150AHE3_A/I.
SM6T150AHE3_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 (SMBJ)
SM6T150AHE3_A/I FAQ
1.How can I place an order for SM6T150AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T150AHE3_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 SM6T150AHE3_A/I reliable?
The price and inventory of SM6T150AHE3_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 SM6T150AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T150AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T150AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T150AHE3_A/I?
SM6T150AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T150AHE3_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 SM6T150AHE3_A/I?
For technical support, including SM6T150AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T150AHE3_A/I requirements.
6.How does Aetrix verify that SM6T150AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T150AHE3_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 SM6T150AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T150AHE3_A/I?
All SM6T150AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T150AHE3_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 SM6T150AHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T150AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T150AHE3_A/I Tags
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