My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T100AHM3_A/H
- Part No.:
- SM6T100AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHM3_A/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T100AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM), 137 V maximum clamping voltage (VC) at 4.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It provides robust ESD and surge protection for automotive-grade signal lines and power rails in sensor interfaces and control modules.
For engineers reviewing the SM6T100AHM3_A/H datasheet, SM6T100AHM3_A/H pinout, SM6T100AHM3_A/H application, or SM6T100AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, AEC-Q101 qualification status, unidirectional polarity with cathode band marking, and thermal resistance (RθJA = 100 °C/W) for PCB layout validation.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds 100 V (VWM), it avalanches at 95–105 V (VBR), limiting transient energy to ≤137 V at 4.4 A. Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM).
Designed for high-reliability automotive applications, SM6T100AHM3_A/H meets AEC-Q101 stress testing requirements and features halogen-free, RoHS-compliant construction with matte tin-plated leads solderable per J-STD-002. Thermal performance is characterized with RθJL = 20 °C/W and TJ max = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 95.0 V / 105 V at 1.0 mA - Confirmed avalanche onset range for reliable triggering |
| VC @ IPPM | 137 V at 4.4 A (10/1000 μs) - Clamping voltage defining worst-case overvoltage seen by protected IC |
| PPPM | 600 W - Peak transient power handling capability under standardized surge waveform |
| ID @ VWM | <1.0 μA - Reverse leakage ensuring minimal standby power loss and signal integrity |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance used to calculate junction temperature rise from PCB pad layout |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, with cathode band marking on unidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink during overvoltage | Connected to protected line; conducts avalanche current to ground when Vreverse > VBR |
| Anode | Reference/return path | Typically tied to system ground or lower-potential rail; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, HAST, and UHST |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) without degradation |
| Glass passivated junction | Ensures stable VBR over lifetime and improved moisture resistance vs. epoxy-passivated alternatives |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (e.g., ESD, load dump) due to compact leadframe geometry |
| MSL Level 1 (260 °C reflow) | Compatible with standard lead-free SMT assembly processes without preconditioning |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤137 V, preventing ADC saturation and latch-up while maintaining <1 μA leakage at 100 V bias. |
Use Scenario: Safeguarding CANH/CANL differential pair against ESD and coupled surges in factory automation gateways. IC Role / Device Role / Timing Role: Discrete TVS placed on each bus line referenced to chassis ground. Use Value: Clamps 8/20 μs surges to ≤178 V (per datasheet VC spec), preserving signal integrity and meeting ISO 11898-2 EMC immunity targets. |
| Power Supply Rail Protection | Consumer Appliance Motor Control |
Use Scenario: Secondary-side overvoltage suppression on 12 V DC power rails feeding MCU peripherals in infotainment systems. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between rail and ground, triggered only during fault conditions. Use Value: Withstands 600 W surge energy without failure and maintains 100 V nominal operating margin below clamping threshold. |
Use Scenario: Protecting gate drivers and logic inputs in washing machine motor inverters subjected to inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional suppressor mounted at driver IC supply pins to absorb flyback energy. Use Value: Fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.45) prevent false triggering and ensure MOSFET gate oxide safety. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/5B | Same VWM (100 V), higher VC (143 V @ 4.2 A), non-AEC-Q101, commercial grade only | Lacks automotive qualification; suitable for industrial/commercial designs without AEC compliance needs | Select SMAJ100A-E3/5B where cost sensitivity outweighs automotive reliability requirements |
| 1.5SMC100A | Same VWM (100 V), higher PPPM (1500 W), larger SMC package (DO-214AB), RθJA = 30 °C/W | Requires larger PCB area and different thermal management; better for high-energy surges | Choose 1.5SMC100A when surge energy exceeds 600 W or board space allows larger footprint |
Compared with SMAJ100A-E3/5B and 1.5SMC100A, SM6T100AHM3_A/H delivers AEC-Q101 assurance in a compact SMB footprint with optimized thermal resistance for dense automotive layouts, while maintaining precise clamping at 137 V-critical for protecting modern low-voltage MCUs and analog front-ends.
Availability
SM6T100AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, and consumer appliance motor control systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T100AHM3_A/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-speed transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where AEC-Q101 compliance, low clamping voltage, and consistent surge handling are mandatory design requirements.
FAQ
What is the clamping voltage of SM6T100AHM3_A/H under a 10/1000 μs surge?
The SM6T100AHM3_A/H has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs waveform at 4.4 A peak pulse current. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events. The SM6T100AHM3_A/H maintains this clamping performance across its specified operating temperature range and after repeated surge exposure, provided derating guidelines are followed.
Is SM6T100AHM3_A/H qualified for automotive use?
Yes, SM6T100AHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation revision 09-Jan-2024 (Document Number: 88385). This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing-ensuring reliability in automotive under-hood and cabin applications. The SM6T100AHM3_A/H meets these requirements as a halogen-free, RoHS-compliant device.
What does the "HM3" suffix indicate in SM6T100AHM3_A/H?
The "HM3" suffix in SM6T100AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" or "M3" versions and confirms compliance with automotive reliability standards. The "_A/H" portion specifies packaging: 7″ tape-and-reel (H) and revision level A. The SM6T100AHM3_A/H therefore combines environmental compliance, automotive qualification, and standardized SMT packaging for production readiness.
How does SM6T100AHM3_A/H compare to bidirectional TVS diodes like SM6T100CA?
SM6T100AHM3_A/H is unidirectional and features a cathode band for polarity identification, whereas SM6T100CA is bidirectional with no polarity marking and symmetric clamping in both directions. The SM6T100AHM3_A/H offers lower leakage (<1 μA) in forward bias and is preferred for DC-coupled lines like power rails or single-ended sensor outputs. Bidirectional variants are used for AC signals or differential buses where polarity reversal occurs.
What is the thermal resistance of SM6T100AHM3_A/H, and how does it affect PCB layout?
The SM6T100AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts safe power dissipation: at 5.0 W steady-state power, junction temperature rise is ~500 °C above ambient-so derating is essential. Layout must follow Vishay's recommended pad dimensions (0.086″ min width, 0.220″ ref length) to achieve stated RθJA; undersized pads increase thermal impedance and risk exceeding +150 °C TJ max.
SM6T100AHM3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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)
SM6T100AHM3_A/H FAQ
1.How can I place an order for SM6T100AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHM3_A/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 SM6T100AHM3_A/H reliable?
The price and inventory of SM6T100AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T100AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHM3_A/H?
SM6T100AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHM3_A/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 SM6T100AHM3_A/H?
For technical support, including SM6T100AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHM3_A/H requirements.
6.How does Aetrix verify that SM6T100AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T100AHM3_A/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 SM6T100AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T100AHM3_A/H?
All SM6T100AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHM3_A/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 SM6T100AHM3_A/H part is unused and in its original packaging.
Return procedure for SM6T100AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100AHM3_A/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 …
