My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T100AHM3/H
- Part No.:
- SM15T100AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100AHM3/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,840
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T100AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 100 V standoff voltage (VWM), 137 V clamping voltage (VC) at 11.0 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 μs). It protects MOSFETs and signal lines in automotive power systems against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T100AHM3/H datasheet, SM15T100AHM3/H pinout, SM15T100AHM3/H application, or SM15T100AHM3/H equivalent, key selection criteria include verified clamping performance at 11 A, halogen-free RoHS-compliant construction, AEC-Q101 qualification, and thermal resistance (RθJL = 15 °C/W) critical for under-hood automotive designs.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking. Its silicon junction is glass passivated, enabling stable breakdown behavior and low leakage (<1 μA at 85.5 V) across -65 °C to +150 °C operating range.
Designed for high-energy transient suppression, it delivers 1500 W peak pulse power under standardized 10/1000 μs waveform conditions when mounted on 8.0 mm × 8.0 mm copper pads. Its failure mode under overstress is a short circuit, consistent with IEC 61000-4-5 surge immunity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 95.0 V / 105 V - Breakdown occurs within this band at 1.0 mA test current, defining turn-on threshold |
| VC @ IPPM | 137 V at 11.0 A - Clamped voltage during 10/1000 μs surge, limiting downstream stress |
| PPPM | 1500 W - Peak transient energy absorption capability per single event |
| RθJL | 15 °C/W - Junction-to-lead thermal resistance enables direct PCB heat sinking without external heatsink |
| TJ max. | +150 °C - Maximum junction temperature rating supports under-hood automotive deployment |
| MSL Level | Level 1 (260 °C peak) - Compatible with standard lead-free reflow profiles |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side reference in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail, sensor output); band-marked end |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Withstands lightning-surge-level threats per IEC 61000-4-5 without degradation |
| Glass passivated junction | Ensures stable VBR over temperature and lifetime, minimizing parametric drift in automotive cycles |
| AEC-Q101 qualification (HM3 suffix) | Validated for automotive powertrain and body electronics per stress-test requirements |
| Low inductance layout | Minimizes voltage overshoot during fast transients (e.g., <100 ns switching events) |
| Halogen-free & RoHS-compliant | Meets ELV Directive and JESD201 Class 2 whisker resistance for long-term reliability |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load-dump and alternator surge transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 85.5 V. Use Value: Limits rail voltage to ≤137 V during 11 A transients, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Shielding PLC analog input modules from inductive kickback when controlling solenoids or contactors. IC Role / Device Role / Timing Role: Standoff-clamp protection on 0–10 V or 4–20 mA signal lines interfacing with industrial actuators. Use Value: Clamps transients within 100 ns while maintaining <1 μA leakage at 85.5 V, preserving signal integrity and ADC accuracy. |
| Automotive Sensor Signal Line Protection | Telecom DC Power Interface Protection |
Use Scenario: Safeguarding LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine bay environments. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on sensor output trace, referenced to local ground. Use Value: Provides 137 V clamping with RθJL = 15 °C/W, enabling direct thermal coupling to PCB copper for sustained surge handling. | Use Scenario: Protecting PoE-powered equipment front-end DC inputs from induced surges on outdoor telecom cables. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V DC input, upstream of DC/DC converter. Use Value: Absorbs 1500 W pulses without derating at TA = 85 °C due to low RθJA (75 °C/W) and robust junction design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/57T | 600 W PPPM, SMA package, non-AEC-Q101, higher RθJA (105 °C/W) | Limited to commercial-grade industrial or consumer use; not qualified for automotive under-hood | Select when cost sensitivity outweighs surge margin and automotive qualification needs |
| 1.5KE100A | Through-hole DO-201 package, 1500 W, no AEC-Q101, higher mounting inductance | Requires PCB through-hole real estate; unsuitable for automated SMT lines or space-constrained modules | Select only for legacy through-hole designs where rework to SMT is impractical |
Compared with SMAJ100A-E3/57T and 1.5KE100A, SM15T100AHM3/H delivers identical 100 V standoff but adds AEC-Q101 qualification, halogen-free compliance, lower thermal resistance, and optimized SMT manufacturability-making it the sole choice for new automotive and high-reliability industrial designs requiring validated surge immunity.
Availability
SM15T100AHM3/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial motor drive I/O protection, and telecom DC power interface protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SM15T100AHM3/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, and protection devices with emphasis on reliability, thermal performance, and automotive-grade validation.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where 1500 W surge immunity and AEC-Q101 compliance are mandatory design requirements.
FAQ
What is the clamping voltage of SM15T100AHM3/H at its rated peak pulse current?
The SM15T100AHM3/H has a maximum clamping voltage (VC) of 137 V when subjected to its specified peak pulse current (IPPM) of 11.0 A under the 10/1000 μs waveform condition. This value is measured per Figure 1 in the official Vishay datasheet (Document Number: 88380, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuits during surge events. The SM15T100AHM3/H maintains this clamping performance across its full operating temperature range.
Is SM15T100AHM3/H qualified for automotive applications?
Yes, SM15T100AHM3/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and explicit listing in Vishay's automotive ordering codes table. It meets stress-test requirements for temperature cycling, humidity, mechanical shock, and surge immunity applicable to automotive powertrain and body electronics. The SM15T100AHM3/H is designed for under-hood deployment with a TJ max. of +150 °C and MSL Level 1 reflow compatibility.
What does the "HM3" suffix indicate in SM15T100AHM3/H?
The "HM3" suffix in SM15T100AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering information, HM3 identifies parts meeting JESD201 Class 2 whisker resistance, UL 94 V-0 flammability, and automotive reliability standards. The "H" indicates 7-inch tape-and-reel packaging, and "M3" confirms halogen-free material categorization per Vishay document 99912.
How does SM15T100AHM3/H differ from bidirectional TVS diodes like SM15T100CA?
SM15T100AHM3/H is unidirectional and features a cathode band for polarity identification, whereas SM15T100CA is bidirectional with no polarity marking and symmetric clamping in both directions. The SM15T100AHM3/H exhibits forward conduction below ~0.7 V and blocks reverse voltage up to 85.5 V, making it suitable for DC rail protection. Bidirectional variants are used for AC-coupled or differential signal lines where polarity reversal may occur.
What is the thermal resistance from junction to lead (RθJL) for SM15T100AHM3/H?
The SM15T100AHM3/H has a typical thermal resistance from junction to lead (RθJL) of 15 °C/W, as specified in the Thermal Characteristics table of Vishay's SM15T Series datasheet (Document Number: 88380). This low value enables efficient heat transfer from the silicon die directly into the PCB copper via the SMC package leads, supporting reliable operation at elevated ambient temperatures without additional heatsinking.
SM15T100AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 11A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMC)
SM15T100AHM3/H FAQ
1.How can I place an order for SM15T100AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100AHM3/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 SM15T100AHM3/H reliable?
The price and inventory of SM15T100AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100AHM3/H is usually 5 days.
3.What payment methods are accepted for SM15T100AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100AHM3/H?
SM15T100AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100AHM3/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 SM15T100AHM3/H?
For technical support, including SM15T100AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100AHM3/H requirements.
6.How does Aetrix verify that SM15T100AHM3/H is sourced from the original manufacturer or authorized distributors?
All SM15T100AHM3/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 SM15T100AHM3/H meets industry standards.
7.What is the process for return or replacement of SM15T100AHM3/H?
All SM15T100AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100AHM3/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 SM15T100AHM3/H part is unused and in its original packaging.
Return procedure for SM15T100AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100AHM3/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 …
