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Vishay General Semiconductor - Diodes Division SM6T36AHE3_A/I
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- Part No.:
- SM6T36AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T36AHE3_A/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,685
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Product details
Overview
SM6T36AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 34.2 V minimum breakdown voltage (VBR), 30.8 V standoff voltage (VWM), 49.9 V clamping voltage (VC) at 12.0 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform - deployed for overvoltage protection of MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the SM6T36AHE3_A/I datasheet, SM6T36AHE3_A/I pinout, SM6T36AHE3_A/I application, or SM6T36AHE3_A/I equivalent, key selection considerations include its AEC-Q101 qualification, unidirectional polarity with cathode band marking, 150 °C max junction temperature, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a clamping-type transient suppressor, responding to fast-rising voltage spikes by avalanche breakdown across its P-N junction. Its low-inductance SMB package and glass-passivated chip junction ensure rapid response (<1 ns typical) and stable clamping performance under repetitive transients.
Designed for unidirectional operation, it conducts only during reverse overvoltage events while blocking forward current up to its rated IFSM of 100 A (10 ms half-sine). Thermal resistance is specified at RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting reliable operation in compact, convection-cooled layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC bias margin. |
| VBR (min/max) | 34.2 V / 37.8 V at 1.0 mA - Breakdown threshold range; ensures consistent clamping initiation across production lot. |
| VC @ IPPM | 49.9 V at 12.0 A (10/1000 μs) - Clamped voltage during worst-case surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling capability; supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and high-ambient industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground during overvoltage event. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping path with minimal loop inductance. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients such as load dump and inductive switching without failure. |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (<1 ns response), critical for protecting high-speed interfaces. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture-induced popcorn failure. |
| AEC-Q101 qualified variant | Validated for automotive electronics including body control modules, ADAS sensors, and powertrain subsystems. |
Applications
| Automotive Body Control Module Protection | Industrial PLC Input Signal Conditioning |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver inputs from load-dump and jump-start induced transients in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Limits transient voltage to ≤49.9 V, preventing latch-up or gate oxide damage in 3.3 V/5 V logic interfaces while maintaining AEC-Q101 compliance. | Use Scenario: Shielding analog input channels (e.g., 4–20 mA sensor loops) in programmable logic controllers from field wiring surges and ESD events. IC Role / Device Role / Timing Role: Standoff-mode protector mounted at connector entry point, absorbing energy before reaching precision ADC front-end. Use Value: Maintains 30.8 V DC operating margin while clamping 1 kV/500 A surges to <50 V, preserving measurement accuracy and isolation integrity. |
| Consumer Appliance Motor Drive Protection | Telecom Power Supply Surge Suppression |
Use Scenario: Safeguarding gate drivers and bootstrap circuits in BLDC motor inverters used in HVAC systems and washing machines. IC Role / Device Role / Timing Role: High-current TVS placed across half-bridge MOSFETs to clamp inductive kickback during PWM switching transitions. Use Value: Withstands 100 A non-repetitive forward surge and clamps at 49.9 V, preventing shoot-through and gate driver destruction during fault conditions. | Use Scenario: Secondary-side transient suppression on DC output rails of AC/DC adapters and PoE injectors exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Final-stage clamping device downstream of primary MOVs and filter chokes, handling residual fast-edge transients. Use Value: Provides precise 30.8 V standoff and 49.9 V clamping to protect 24 V/48 V telecom equipment without crowbarring valid operating voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5B | Same VWM (30.8 V), lower PPPM (400 W), SMA package (larger footprint, higher RθJA = 140 °C/W) | Not AEC-Q101 qualified; suitable for commercial-grade consumer/industrial use only | Select when cost sensitivity outweighs automotive qualification and higher surge margin. |
| 1.5SMC36A | Same VWM/VC, higher PPPM (1500 W), SMC package (larger, higher thermal mass, RθJA = 60 °C/W) | Higher surge capacity but incompatible with dense SMT layouts requiring SMB footprint | Select when system-level surge requirements exceed 600 W and board space permits larger package. |
Compared with SMAJ36A-E3/5B and 1.5SMC36A, SM6T36AHE3_A/I delivers optimal balance of AEC-Q101 qualification, 600 W surge capability, and SMB footprint - making it preferred for space-constrained automotive and industrial designs where reliability and manufacturability are jointly prioritized.
Availability
SM6T36AHE3_A/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and consumer appliance motor drive systems requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for SM6T36AHE3_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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series is designed specifically for robust, surface-mount transient voltage suppression in automotive, industrial, and telecom applications - emphasizing AEC-Q101 qualification, low-inductance packaging, and precise clamping performance across temperature.
FAQ
What is the polarity configuration of SM6T36AHE3_A/I?
The SM6T36AHE3_A/I is a unidirectional TVS diode, with the cathode identified by a visible band on the SMB package body. It conducts only during reverse-biased overvoltage events and blocks forward current up to its rated IFSM of 100 A. This polarity is confirmed in the Vishay SM6T datasheet, Table "ELECTRICAL CHARACTERISTICS", where SM6T36A is explicitly listed under the "UNI" column with marking code "CK7".
Is SM6T36AHE3_A/I qualified for automotive applications?
Yes, SM6T36AHE3_A/I is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number and confirmed in the Vishay SM6T datasheet section "MECHANICAL DATA". It has undergone stress testing including high-temperature operating life, temperature cycling, and unbiased HAST per AEC-Q101 requirements - making it suitable for under-hood and cabin electronics in passenger vehicles and commercial vehicles.
What is the clamping voltage of SM6T36AHE3_A/I at rated peak pulse current?
The clamping voltage (VC) of SM6T36AHE3_A/I is 49.9 V at 12.0 A peak pulse current with a 10/1000 μs waveform, per the "ELECTRICAL CHARACTERISTICS" table in the Vishay SM6T datasheet. This value represents the maximum voltage seen across the device during standardized surge testing and directly defines the protection level delivered to downstream components.
Does SM6T36AHE3_A/I meet RoHS and halogen-free requirements?
SM6T36AHE3_A/I is RoHS-compliant and AEC-Q101 qualified, but not halogen-free. The "HE3" suffix denotes RoHS-compliant + AEC-Q101 qualification; halogen-free variants use the "HM3" suffix (e.g., SM6T36AHM3_A/I). This distinction is documented in the "MECHANICAL DATA" section of the Vishay SM6T datasheet under material categorization definitions.
What is the thermal resistance of SM6T36AHE3_A/I in standard mounting conditions?
The typical thermal resistance from junction to ambient (RθJA) for SM6T36AHE3_A/I is 100 °C/W, and junction-to-lead (RθJL) is 20 °C/W, per the "THERMAL CHARACTERISTICS" table in the Vishay SM6T datasheet. These values assume mounting on 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal - critical for thermal design validation in high-duty-cycle surge environments.
SM6T36AHE3_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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
SM6T36AHE3_A/I FAQ
1.How can I place an order for SM6T36AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T36AHE3_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 SM6T36AHE3_A/I reliable?
The price and inventory of SM6T36AHE3_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 SM6T36AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T36AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T36AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T36AHE3_A/I?
SM6T36AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T36AHE3_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 SM6T36AHE3_A/I?
For technical support, including SM6T36AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T36AHE3_A/I requirements.
6.How does Aetrix verify that SM6T36AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T36AHE3_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 SM6T36AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T36AHE3_A/I?
All SM6T36AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T36AHE3_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 SM6T36AHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T36AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T36AHE3_A/I Tags
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