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Vishay General Semiconductor - Diodes Division SM6T100CAHM3_A/H
- Part No.:
- SM6T100CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100CAHM3_A/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
SM6T100CAHM3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM), 137 V 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 sensor signal lines, power rails, and I/O interfaces operating up to 150 °C junction temperature.
For engineers reviewing the SM6T100CAHM3_A/H datasheet, SM6T100CAHM3_A/H pinout, SM6T100CAHM3_A/H application, or SM6T100CAHM3_A/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, halogen-free RoHS compliance, low thermal resistance (RθJL = 20 °C/W), and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
The SM6T100CAHM3_A/H operates as a bidirectional avalanche-clamped TVS diode, delivering symmetrical reverse/forward breakdown behavior with VBR min/max of 95.0 V / 105 V at 1.0 mA test current. Its glass-passivated junction ensures stable leakage performance (ID ≤ 1.0 μA at VWM) and low inductance for fast transient response.
Designed for high-reliability automotive applications, it meets AEC-Q101 stress testing requirements and features MSL Level 1 moisture sensitivity with 260 °C lead-free reflow capability. Thermal design is supported by RθJA = 100 °C/W (free air) and RθJL = 20 °C/W (junction-to-lead), enabling effective power dissipation under repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V standoff voltage - defines maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 95.0 V / 105 V at 1.0 mA - specifies symmetric bidirectional breakdown threshold with tight tolerance |
| VC @ IPPM | 137 V at 4.4 A (10/1000 μs) - clamping voltage during standardized surge, determining protected circuit overvoltage margin |
| PPPM | 600 W peak pulse power - sustains single high-energy transients without failure per IEC 61000-4-5 waveform |
| TJ max. | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| RθJL | 20 °C/W - low junction-to-lead thermal resistance supports reliable heat transfer to PCB copper pads |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, TCT, and ESD HBM/MM testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Polarity: unmarked - bidirectional device has no cathode/anode designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional conduction path | Either terminal serves as anode or cathode depending on transient polarity - no marking required |
| Case (body) | Thermal and mechanical interface | Non-electrical; transfers heat to PCB copper pads via soldered leads - no internal connection |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation in automotive power domains |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics including engine control units, ADAS sensors, and body controllers |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
| Low inductance & glass passivation | Minimizes voltage overshoot during fast transients (<1 ns rise time) and ensures long-term leakage stability |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without pre-baking or special handling |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed across sensor supply and ground, shunting transients before they reach precision ADC inputs. Use Value: Maintains signal integrity under ±100 V/100 ms load dump events while preserving <1 μA leakage at 100 V bias. |
Use Scenario: Safeguarding CANH/CANL differential pair against ESD (IEC 61000-4-2 ±8 kV contact) and burst noise in factory automation gateways. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS mounted directly at connector entry point to limit common-mode surges. Use Value: Clamps to ≤137 V within nanoseconds, preventing CAN transceiver latch-up while adding <0.5 pF parasitic capacitance. |
| Power Supply Rail Protection | Consumer USB Port ESD Suppression |
Use Scenario: Secondary-side overvoltage suppression on 12 V/24 V DC-DC converter outputs feeding infotainment head units and display modules. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between rail and ground to absorb switching spikes and coupling noise from adjacent circuits. Use Value: Withstands 600 W surges without derating at +85 °C ambient, ensuring uninterrupted operation during cold-crank battery recovery. |
Use Scenario: Board-level ESD protection for USB 2.0 data lines (D+/D−) in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Symmetric bidirectional clamp placed inline with data traces to divert ±15 kV HBM discharges away from PHY ICs. Use Value: Delivers sub-100 ns response with <1.0 μA leakage at 100 V, avoiding signal distortion while meeting IEC 61000-4-2 Level 4 immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | Same VWM (100 V), lower PPPM (400 W), SMA package (larger RθJA = 150 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump where 600 W is required | Select when cost sensitivity outweighs peak power need and board space allows larger footprint |
| SMCJ100CA | Same VWM (100 V), higher PPPM (1500 W), SMC package (higher IFSM = 200 A) | Over-specified for most sensor-level protection; requires larger PCB area and higher mounting pad thermal mass | Choose only when protecting high-current power buses subject to repeated ISO 16750-2 pulses |
Compared with SMAJ100CA and SMCJ100CA, the SM6T100CAHM3_A/H delivers optimal balance of 600 W surge capacity, AEC-Q101 qualification, SMB footprint efficiency, and halogen-free compliance-making it the preferred choice for space-constrained, automotive-grade signal line protection.
Availability
SM6T100CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface hardening, and consumer USB port ESD suppression requiring stable component supply across production lifecycles.
Supply support for SM6T100CAHM3_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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive qualification.
The SM6T Series is designed specifically for high-reliability transient suppression in automotive, industrial, and computing systems-delivering consistent clamping performance, AEC-Q101 validation, and optimized SMT manufacturability in the SMB package.
FAQ
What does the "CA" suffix indicate in SM6T100CAHM3_A/H?
The "CA" suffix in SM6T100CAHM3_A/H denotes a bidirectional configuration, meaning the device provides symmetrical clamping in both forward and reverse directions. This eliminates polarity concerns during PCB layout and enables use across differential signal pairs or AC-coupled lines. Unlike unidirectional variants (e.g., SM6T100AHM3_A/H), the CA version has no cathode marking and exhibits matched VBR min/max values of 95.0 V / 105 V in either direction.
Is SM6T100CAHM3_A/H qualified for automotive applications?
Yes, SM6T100CAHM3_A/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's SM6T datasheet (Rev. 09-Jan-2024, Doc. #88385). It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM ≥ 8 kV), making it suitable for engine control, ADAS, and body electronics where reliability under thermal and electrical stress is critical.
What is the clamping voltage of SM6T100CAHM3_A/H under a 10/1000 μs surge?
The SM6T100CAHM3_A/H clamps to a maximum of 137 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 4.4 A. This value is measured per Figure 1 and Table on page 2 of the official datasheet and represents the upper bound of voltage seen by downstream circuitry during standardized surge events-enabling precise overvoltage margining for protected ICs.
Does SM6T100CAHM3_A/H require special PCB layout considerations?
Yes-SM6T100CAHM3_A/H should be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve specified thermal and surge ratings. The SMB (DO-214AA) package relies on pad copper mass for heat dissipation and low-inductance current paths. Short, direct traces to protected nodes and grounding to large copper planes are essential to maintain clamping effectiveness below 137 V.
How does the HM3 suffix differ from E3 or M3 in SM6T100CAHM3_A/H?
The HM3 suffix in SM6T100CAHM3_A/H indicates halogen-free, RoHS-compliant construction with full AEC-Q101 qualification. In contrast, E3 denotes RoHS-compliant commercial grade only, and M3 adds halogen-free composition but lacks automotive qualification. The HM3 variant is uniquely suited for automotive Tier 1 suppliers requiring both environmental compliance and validated reliability under extended temperature and lifetime stress conditions.
SM6T100CAHM3_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:
- -
- Bidirectional Channels:
- 1
- 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)
SM6T100CAHM3_A/H FAQ
1.How can I place an order for SM6T100CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100CAHM3_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 SM6T100CAHM3_A/H reliable?
The price and inventory of SM6T100CAHM3_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 SM6T100CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T100CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100CAHM3_A/H?
SM6T100CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100CAHM3_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 SM6T100CAHM3_A/H?
For technical support, including SM6T100CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100CAHM3_A/H requirements.
6.How does Aetrix verify that SM6T100CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T100CAHM3_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 SM6T100CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T100CAHM3_A/H?
All SM6T100CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100CAHM3_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 SM6T100CAHM3_A/H part is unused and in its original packaging.
Return procedure for SM6T100CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100CAHM3_A/H Tags
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