My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T6V8AHM3/H
- Part No.:
- SM6T6V8AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8AHM3/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,466
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T6V8AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor 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 - deployed for ESD and surge protection of ICs and MOSFETs in automotive sensor signal lines.
For engineers reviewing the SM6T6V8AHM3/H datasheet, SM6T6V8AHM3/H pinout, SM6T6V8AHM3/H application, or SM6T6V8AHM3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and clamping performance under IEC 61000-4-5 surge conditions.
Technical Context
This device operates as a unidirectional TVS diode, leveraging a glass-passivated silicon junction to provide fast response (<1 ns) to transients induced by inductive switching or lightning surges. Its clamping action begins at VWM = 5.80 V and fully engages at VBR = 6.45–7.14 V (tested at 10 mA), limiting downstream voltage to ≤10.5 V at 57 A IPPM.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads, it delivers 600 W peak pulse power with low inductance and meets MSL Level 1 (260 °C reflow). The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise conduction onset for predictable overvoltage triggering |
| VWM | 5.80 V - maximum reverse working voltage before leakage exceeds 1000 μA |
| VC @ IPPM | 10.5 V at 57 A (10/1000 μs) - limits protected circuit voltage during worst-case surge |
| PPPM | 600 W - peak transient energy absorption capability under standardized surge waveform |
| TJ max. | +150 °C - enables operation in under-hood automotive environments |
| RθJA | 100 °C/W - determines thermal derating needed for sustained power dissipation |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated leads; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground in standard unidirectional TVS configuration | Provides low-impedance path to ground during transient clamping |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line | Receives surge energy from signal/power line and shunts it to ground via anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV) without degradation when properly mounted |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low inductance SMB package | Minimizes voltage overshoot during nanosecond-scale transients, improving clamping fidelity |
| MSL Level 1, 260 °C peak reflow | Supports lead-free SMT assembly without preconditioning or special handling |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., temperature, pressure) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground, responding within <1 ns to transients exceeding VWM. Use Value: Limits voltage seen by downstream transceiver IC to ≤10.5 V during 57 A surge, preventing latch-up or gate oxide damage. | Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff protector on each input channel, conducting only during overvoltage events while remaining high-impedance during normal operation. Use Value: Maintains signal integrity up to 5.80 V DC while clamping 600 W transients - enabling robust operation in factory-floor EMI environments. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Suppression |
Use Scenario: Input-stage protection for AC/DC adapters and USB-C PD controllers against AC line surges and hot-plug transients. IC Role / Device Role / Timing Role: Primary-level unidirectional clamp on DC output rail, coordinated with upstream fuse and common-mode choke. Use Value: Absorbs 600 W surges without failure, preserving downstream DC-DC converter ICs rated for ≤12 V absolute maximum input. | Use Scenario: Secondary-side protection on Ethernet PHY or VDSL line drivers exposed to induced lightning surges per ITU-T K.21. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pair, grounded via split termination to preserve impedance matching. Use Value: Clamps to 10.5 V before PHY damage threshold is reached, with minimal signal distortion due to SMB package inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A-E3/5B | Same VBR range (6.45–7.14 V), but lower PPPM = 400 W; SMA package (DO-214AC), higher RθJA = 125 °C/W | Not AEC-Q101 qualified; suited for commercial-grade consumer power supplies, not automotive | Select when cost sensitivity outweighs automotive qualification and 600 W headroom |
| 1.5SMC6.8A-H | Higher PPPM = 1500 W; larger SMC (DO-214AB) package; VBR min = 6.45 V same, but VC = 11.5 V at 131 A | Used where higher surge margin is required (e.g., outdoor telecom cabinets); less space-constrained layouts | Choose when PCB area allows SMC and system requires >600 W surge margin |
Compared with SMAJ6.8A-E3/5B and 1.5SMC6.8A-H, SM6T6V8AHM3/H uniquely combines AEC-Q101 qualification, 600 W capability, and SMB footprint - making it optimal for space-limited automotive electronics where reliability and regulatory compliance are mandatory.
Availability
SM6T6V8AHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter protection requiring stable component supply across production lifecycles.
Supply support for SM6T6V8AHM3/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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SM6T Series is engineered for high-reliability transient suppression in harsh environments - particularly targeting automotive, industrial, and telecom systems where AEC-Q101 qualification and consistent clamping behavior are critical design requirements.
FAQ
What is the clamping voltage of SM6T6V8AHM3/H at its rated peak pulse current?
The SM6T6V8AHM3/H has a maximum clamping voltage (VC) of 10.5 V when subjected to its rated peak pulse current of 57 A under the standard 10/1000 μs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards and ensures downstream components see no more than 10.5 V during surge events. The SM6T6V8AHM3/H maintains this clamping performance across its operational temperature range.
Is SM6T6V8AHM3/H qualified for automotive applications?
Yes, SM6T6V8AHM3/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix in its part number - indicating halogen-free, RoHS-compliant construction and full stress testing per the AEC-Q101 standard. It is approved for use in automotive subsystems including body control modules, ADAS sensors, and infotainment interfaces where transient immunity and long-term reliability are mandated.
What does the "HM3" suffix mean in SM6T6V8AHM3/H?
The "HM3" suffix in SM6T6V8AHM3/H denotes halogen-free, RoHS-compliant materials and AEC-Q101 qualification. The "H" indicates packaging in 7" tape-and-reel (750 units), while "M3" specifies the halogen-free, whisker-resistant matte tin plating meeting JESD201 Class 2. This distinguishes SM6T6V8AHM3/H from commercial-grade variants like SM6T6V8A-E3.
What is the standoff voltage (VWM) of SM6T6V8AHM3/H, and why does it matter?
The standoff voltage (VWM) of SM6T6V8AHM3/H is 5.80 V - the maximum continuous reverse voltage it can block without exceeding 1000 μA leakage current. This parameter ensures the SM6T6V8AHM3/H remains non-conductive during normal operation of 5 V systems (e.g., microcontroller I/O, sensor outputs), avoiding false triggering while still activating promptly when transients exceed this threshold.
Can SM6T6V8AHM3/H be used in bidirectional configurations?
No, SM6T6V8AHM3/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. For bidirectional protection, Vishay offers CA-suffixed variants such as SM6T6V8CAHM3/H. Using SM6T6V8AHM3/H in a bidirectional application would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
SM6T6V8AHM3/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:
- Discontinued at Digi-Key
- 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 (SMB)
SM6T6V8AHM3/H FAQ
1.How can I place an order for SM6T6V8AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8AHM3/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 SM6T6V8AHM3/H reliable?
The price and inventory of SM6T6V8AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T6V8AHM3/H is usually 5 days.
3.What payment methods are accepted for SM6T6V8AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8AHM3/H?
SM6T6V8AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8AHM3/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 SM6T6V8AHM3/H?
For technical support, including SM6T6V8AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8AHM3/H requirements.
6.How does Aetrix verify that SM6T6V8AHM3/H is sourced from the original manufacturer or authorized distributors?
All SM6T6V8AHM3/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 SM6T6V8AHM3/H meets industry standards.
7.What is the process for return or replacement of SM6T6V8AHM3/H?
All SM6T6V8AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8AHM3/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 SM6T6V8AHM3/H part is unused and in its original packaging.
Return procedure for SM6T6V8AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T6V8AHM3/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 …
