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Vishay General Semiconductor - Diodes Division SM6T6V8AHE3_A/I
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- Part No.:
- SM6T6V8AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8AHE3_A/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,921
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Product details
Overview
SM6T6V8AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, with 6.45 V minimum breakdown voltage (VBR), 5.80 V stand-off voltage (VWM), 10.5 V maximum clamping voltage (VC) at 57 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform. It protects MOSFETs and ICs against inductive switching transients in automotive sensor signal lines.
For engineers reviewing the SM6T6V8AHE3_A/I datasheet, SM6T6V8AHE3_A/I pinout, SM6T6V8AHE3_A/I application, or SM6T6V8AHE3_A/I equivalent, key selection factors include its AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.64), 100 °C/W junction-to-ambient thermal resistance, and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, triggering when transient voltage exceeds VWM = 5.80 V and limiting downstream voltage to ≤10.5 V at IPPM = 57 A. Its glass-passivated junction ensures stable breakdown and low leakage (<1000 μA at VWM).
Designed for surface-mount automated placement, it meets MSL Level 1 (260 °C reflow peak) and supports high-reliability automotive applications via AEC-Q101 qualification. The SMB package provides low inductance and thermal performance suitable for fast transients on signal or power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.80 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min) | 6.45 V at 10 mA - Ensures reliable turn-on above normal system voltage with margin |
| VC @ IPPM | 10.5 V at 57 A (10/1000 μs) - Limits protected circuit voltage during 600 W surge |
| PPPM | 600 W - Sustains high-energy transients common in automotive load-dump or inductive switch-off |
| IFSM | 100 A (10 ms half-sine) - Withstands single-event forward surge without degradation |
| TJ max | +150 °C - Enables operation in under-hood automotive environments |
| RθJA | 100 °C/W - Requires minimal PCB copper area (0.2" × 0.2") for thermal management |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., sensor output); band-marked end defines polarity |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Handles high-energy transients from automotive load dump or relay coil de-energization |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| Low clamping voltage (10.5 V) | Protects 5 V logic interfaces and automotive microcontrollers without overvoltage stress |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability across temperature |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure or temperature sensors in engine control modules exposed to ISO 7637-2 pulse 1 and pulse 2a transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤10.5 V, preserving ADC integrity and preventing latch-up in 5 V rail systems. | Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers subjected to inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Standoff protection device mounted at connector interface, shunting surge energy to ground. Use Value: Clamps 600 W surges within 1 ns response time, maintaining input logic state and avoiding false triggering. |
| Consumer Power Adapter Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters where transformer leakage inductance induces spikes during MOSFET switching. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC output capacitor to absorb flyback energy. Use Value: Prevents output overvoltage beyond 10.5 V, protecting downstream USB-PD or battery charging ICs. | Use Scenario: Surge protection on RS-485 or CAN bus termination points in base station equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage clamping element before signal conditioning and transceiver IC. Use Value: Absorbs up to 57 A transient current while holding line voltage below 10.5 V, preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A | Lower PPPM (400 W), higher VC (10.5 V same but at lower IPPM = 38.2 A), SMA package (larger RθJA = 150 °C/W) | Less robust for automotive load-dump events; requires larger PCB pad area for thermal relief | Select if cost-sensitive and surge energy is limited to ≤400 W |
| 1.5SMC6.8A | Same VBR range, higher PPPM (1500 W), SMC package (higher IFSM = 200 A), no AEC-Q101 qualification | Over-specified for most sensor lines; unsuitable for automotive qualification-critical designs | Select only for industrial power rail protection where AEC-Q101 is not required |
Compared with SMAJ6.0A and 1.5SMC6.8A, SM6T6V8AHE3_A/I uniquely balances 600 W capability, AEC-Q101 compliance, SMB footprint, and tight VC/VBR ratio-making it optimal for space-constrained, automotive-qualified signal-line protection.
Availability
SM6T6V8AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, and telecom line interface circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T6V8AHE3_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 reliability, efficiency, and application-specific optimization.
The SM6T Series is designed specifically for robust transient suppression in harsh environments-including automotive, industrial, and telecom-where AEC-Q101 qualification, low clamping voltage, and consistent surge handling are mandatory.
FAQ
What is the breakdown voltage tolerance for SM6T6V8AHE3_A/I?
The SM6T6V8AHE3_A/I has a specified breakdown voltage (VBR) range of 6.45 V to 7.14 V at 10 mA test current, corresponding to ±5% tolerance around the nominal 6.8 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature ranges, critical for protecting 5 V logic interfaces without premature conduction.
Is SM6T6V8AHE3_A/I suitable for bidirectional transient protection?
No, SM6T6V8AHE3_A/I is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the SM6T6V8CA variant (with "CA" suffix). Using SM6T6V8AHE3_A/I in bidirectional applications risks forward conduction during negative transients and inadequate clamping.
Does SM6T6V8AHE3_A/I require derating at elevated ambient temperatures?
Yes, SM6T6V8AHE3_A/I must be derated above TA = 25 °C per Figure 2 in the datasheet. At 85 °C ambient, its peak pulse power drops to ~420 W (70% of 600 W), and at 125 °C, it falls to ~240 W (40%). Designers must verify clamping performance under worst-case thermal conditions using the published derating curve.
What is the meaning of the "HE3_A/I" suffix in SM6T6V8AHE3_A/I?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction; "A" is the revision code; "I" indicates packaging in 13-inch tape-and-reel format with 3200 units per reel. This full suffix confirms automotive-grade qualification, environmental compliance, and logistics-ready delivery format for high-volume SMT assembly.
How does the SMB package of SM6T6V8AHE3_A/I compare thermally to SMA or SMC alternatives?
The SMB (DO-214AA) package of SM6T6V8AHE3_A/I has a typical RθJA of 100 °C/W, lower than SMA (150 °C/W) but higher than SMC (60 °C/W). Its thermal performance is optimized for compact layouts: it achieves adequate dissipation with minimal 0.2" × 0.2" copper pads per terminal, making it ideal for dense automotive PCBs where space and qualification outweigh raw power-handling needs.
SM6T6V8AHE3_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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57A
- 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)
SM6T6V8AHE3_A/I FAQ
1.How can I place an order for SM6T6V8AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8AHE3_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 SM6T6V8AHE3_A/I reliable?
The price and inventory of SM6T6V8AHE3_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 SM6T6V8AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T6V8AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8AHE3_A/I?
SM6T6V8AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8AHE3_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 SM6T6V8AHE3_A/I?
For technical support, including SM6T6V8AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8AHE3_A/I requirements.
6.How does Aetrix verify that SM6T6V8AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T6V8AHE3_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 SM6T6V8AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T6V8AHE3_A/I?
All SM6T6V8AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8AHE3_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 SM6T6V8AHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T6V8AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T6V8AHE3_A/I Tags
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