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Vishay General Semiconductor - Diodes Division SM15T100CAHM3/H
- Part No.:
- SM15T100CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100CAHM3/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,876
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Product details
Overview
SM15T100CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode 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 provides robust protection for automotive-grade signal lines and power rails against lightning-induced and switching transients.
For engineers reviewing the SM15T100CAHM3/H datasheet, SM15T100CAHM3/H pinout, SM15T100CAHM3/H application, or SM15T100CAHM3/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJL = 15 °C/W) under high-energy surge conditions.
Technical Context
This device operates as a voltage-clamped crowbar during overvoltage events, with symmetrical breakdown characteristics in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable leakage performance (<1 μA at VWM) and low inductance for fast response to 8/20 μs and 10/1000 μs transients.
The SM15T100CAHM3/H is thermally optimized for surface-mount applications on 8.0 mm × 8.0 mm copper pads, delivering 6.5 W steady-state power dissipation at TA = 50 °C and surviving 200 A non-repetitive forward surge (10 ms half-sine) in unidirectional test mode - though its CA suffix confirms bidirectional operation in actual use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 114 V / 126 V at IT = 1 mA - guaranteed symmetric breakdown threshold in both polarities |
| VC @ IPPM | 137 V at 11.0 A (10/1000 μs) - clamping voltage limits downstream IC stress during surge |
| PPPM | 1500 W - peak transient energy absorption capability per IEC 61000-4-5 Level 4 |
| TJ max. | +150 °C - enables operation in under-hood automotive environments |
| RθJL | 15 °C/W - low junction-to-lead thermal resistance supports reliable power derating |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
Pinout & Package
SM15T100CAHM3/H uses a 2-terminal SMC (DO-214AB) package with no polarity marking - consistent with bidirectional TVS construction. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Acts as cathode during positive transients and anode during negative transients - no fixed polarity |
| Cathode | Transient return path (bidirectional) | Acts as anode during positive transients and cathode during negative transients - symmetrical conduction |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics per stress test requirements |
| Halogen-free & RoHS-compliant | Meets automotive OEM material compliance mandates and end-of-life recycling standards |
| Low clamping ratio (VC/VBR ≈ 1.15) | Minimizes overvoltage margin between breakdown and clamping - tighter protection window |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak - compatible with standard SMT assembly |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and sensor supply rails in engine control units exposed to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across power rail or signal pair to shunt surge energy before it reaches protected ICs. Use Value: Withstands 1500 W surges while limiting clamping voltage to 137 V - within safe operating area of 12 V automotive systems. | Use Scenario: Safeguarding differential CAN H/L lines in factory automation gateways subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional transient suppressor connected line-to-line to clamp common-mode surges without disrupting DC bias. Use Value: Symmetrical VBR (114–126 V) and VC ensure balanced clamping on both lines - preserving signal integrity during 8/20 μs transients. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive |
Use Scenario: Front-end protection of 48 V telecom DC-DC converters against lightning-induced surges on primary-side input. IC Role / Device Role / Timing Role: Primary-side TVS mounted directly at connector entry point to absorb bulk surge energy before filtering stage. Use Value: 1500 W PPPM rating meets IEC 61000-4-5 Level 4 requirements - eliminates need for cascaded protection stages. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Across-motor terminals to clamp inductive kickback and prevent MCU reset or MOSFET avalanche failure. Use Value: 200 A IFSM rating handles repetitive motor commutation spikes - extends board-level reliability beyond basic TVS alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | 600 W PPPM, SMA package, higher RθJA (90 °C/W), no AEC-Q101 qualification | Limited to commercial-grade consumer/industrial use; insufficient for automotive under-hood thermal stress | Select when cost sensitivity outweighs power rating and automotive qualification needs |
| 1.5KE100CA | Through-hole DO-201 package, same 100 V VWM and bidirectional design, but 1500 W rating requires larger PCB real estate | Not suitable for automated SMT assembly; incompatible with high-density layouts requiring SMC footprint | Choose only for legacy through-hole designs or where manual assembly and thermal mass are prioritized |
Compared with SMAJ100CA and 1.5KE100CA, SM15T100CAHM3/H delivers identical VWM and bidirectional functionality in a smaller SMC package, with AEC-Q101 qualification and lower thermal resistance - making it the preferred choice for space-constrained, thermally demanding automotive and industrial SMT applications.
Availability
SM15T100CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN gateways, telecom power supplies, and consumer appliance motor drives requiring stable component supply and long-term lifecycle support.
Supply support for SM15T100CAHM3/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 SM15T Series is designed specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure - combining AEC-Q101 qualification, halogen-free materials, and 1500 W surge capability in compact SMC packaging.
FAQ
What does the "CA" suffix indicate in SM15T100CAHM3/H?
The "CA" suffix in SM15T100CAHM3/H denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities - essential for protecting AC-coupled interfaces like CAN bus or differential sensor lines without polarity constraints. This differs from unidirectional variants (e.g., SM15T100A) that require correct cathode orientation.
Is SM15T100CAHM3/H qualified for automotive applications?
Yes, SM15T100CAHM3/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's SM15T series datasheet (Doc. #88380, Rev. 09-Jan-2024). This qualification validates its reliability for automotive powertrain, body electronics, and ADAS subsystems under temperature cycling, humidity, and mechanical stress testing.
What is the clamping voltage of SM15T100CAHM3/H at rated peak pulse current?
The clamping voltage (VC) of SM15T100CAHM3/H is 137 V when subjected to its rated 11.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured across the device terminals and defines the maximum voltage seen by downstream circuitry during surge events.
How does the HM3 suffix differ from E3 or M3 in SM15T100CAHM3/H?
The HM3 suffix in SM15T100CAHM3/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from E3 (RoHS-compliant commercial grade), M3 (halogen-free RoHS commercial grade), and HE3 (RoHS + AEC-Q101 without halogen-free claim). HM3 meets strict automotive material and reliability requirements.
Can SM15T100CAHM3/H be used in place of SM15T100A in a design?
No - SM15T100CAHM3/H is bidirectional while SM15T100A is unidirectional; substituting them requires verifying circuit polarity and clamping behavior. The CA variant lacks a cathode band marking and conducts equally in both directions, whereas SM15T100A must be oriented with the band toward the most negative potential. Using SM15T100CAHM3/H in a unidirectional layout may cause unintended conduction.
SM15T100CAHM3/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:
- -
- Bidirectional Channels:
- 1
- 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)
SM15T100CAHM3/H FAQ
1.How can I place an order for SM15T100CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100CAHM3/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 SM15T100CAHM3/H reliable?
The price and inventory of SM15T100CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100CAHM3/H is usually 5 days.
3.What payment methods are accepted for SM15T100CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100CAHM3/H?
SM15T100CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100CAHM3/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 SM15T100CAHM3/H?
For technical support, including SM15T100CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100CAHM3/H requirements.
6.How does Aetrix verify that SM15T100CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SM15T100CAHM3/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 SM15T100CAHM3/H meets industry standards.
7.What is the process for return or replacement of SM15T100CAHM3/H?
All SM15T100CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100CAHM3/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 SM15T100CAHM3/H part is unused and in its original packaging.
Return procedure for SM15T100CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100CAHM3/H Tags
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