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Vishay General Semiconductor - Diodes Division SM6T100CAHM3/I
- Part No.:
- SM6T100CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100CAHM3/I.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,892
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Product details
Overview
SM6T100CAHM3/I 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.
For engineers reviewing the SM6T100CAHM3/I datasheet, SM6T100CAHM3/I pinout, SM6T100CAHM3/I application, or SM6T100CAHM3/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, halogen-free RoHS compliance, low clamping ratio (1.37×VWM), and MSL Level 1 reflow capability up to 260 °C.
Technical Context
This device operates as a voltage-clamped crowbar during transients, with symmetrical breakdown behavior in both polarities due to its bidirectional construction. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and repeatable clamping performance across temperature (-65 °C to +150 °C).
The SM6T100CAHM3/I delivers 600 W peak pulse power handling per 10/1000 μs waveform when mounted on 5.0 mm × 5.0 mm copper pads, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation under repetitive surge stress in automotive-grade environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 95.0 V / 105 V - breakdown occurs within this range at 1 mA test current, ensuring tight tolerance |
| VC @ IPPM | 137 V at 4.4 A - clamping voltage limits downstream circuit stress during 10/1000 μs surge |
| PPPM | 600 W - peak transient energy absorption capacity under standardized waveform |
| ID @ VWM | <1 μA - ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| TJ max. | +150 °C - supports under-hood automotive deployment without derating |
| MSL Level | Level 1 (260 °C peak) - compatible with standard lead-free reflow profiles without baking |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Not applicable - bidirectional device has no polarity marking | No cathode/anode designation; terminals are functionally symmetric for AC transients |
| Anode (unmarked end) | Not applicable - bidirectional device has no polarity marking | Both terminals behave identically under positive or negative overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal paths without polarity concerns |
| AEC-Q101 qualification | Validated for automotive electronics including engine control, ADAS sensors, and infotainment I/O |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events without degradation |
| Low clamping ratio (1.37×VWM) | Minimizes voltage overshoot during clamping, reducing risk of IC latch-up or damage |
| MSL Level 1 rating | Eliminates pre-reflow baking requirement, streamlining SMT manufacturing for high-volume production |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine bay modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt transients before reaching precision ADC front-end. Use Value: Maintains sensor accuracy by limiting transient-induced offset shift and preventing ADC saturation or reset. | Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD and fast transients in factory automation PLCs and motor drives. IC Role / Device Role / Timing Role: Bidirectional TVS connected between CAN_H and CAN_L to clamp common-mode surges while preserving differential signaling integrity. Use Value: Prevents bus lockup and bit errors during 8 kV contact ESD events without affecting CAN timing or signal rise/fall characteristics. |
| Consumer Power Adapter Input | Telecom PoE Data Line Protection |
Use Scenario: Secondary-side surge suppression on DC output rails of wall adapters powering IoT gateways and smart home hubs. IC Role / Device Role / Timing Role: Bidirectional TVS across +VOUT/GND to absorb reverse-polarity connection transients and lightning-induced surges. Use Value: Extends adapter lifetime by preventing MOSFET gate oxide rupture and secondary-side regulator failure. | Use Scenario: Protecting Ethernet PHY data pairs (TX+/TX−, RX+/RX−) in IEEE 802.3af/at PoE-powered devices like IP cameras and wireless APs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed inline with each differential pair to suppress mode conversion transients without degrading 100 MHz signal integrity. Use Value: Ensures uninterrupted data transmission during 15 kV air-gap ESD events while meeting TIA-568-C return loss requirements. |
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), higher VC (156 V), SMA package (larger footprint) | Limited to non-automotive industrial use due to lack of AEC-Q101 qualification | Select when cost sensitivity outweighs automotive qualification and space constraints allow larger SMA footprint |
| SMCJ100CA | Same VWM (100 V), higher PPPM (1500 W), same VC (137 V), SMC package (3.5× larger area) | Used where higher surge margin is required (e.g., outdoor telecom enclosures), but incompatible with dense PCB layouts | Choose for mission-critical infrastructure requiring >1000 W surge rating, accepting 3.5× board area penalty |
Compared with SMAJ100CA and SMCJ100CA, the SM6T100CAHM3/I offers optimal balance of AEC-Q101 compliance, compact SMB footprint, and 600 W surge capability-making it the preferred choice for space-constrained automotive and industrial edge nodes where qualification and manufacturability are critical.
Availability
SM6T100CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer power adapters, and telecom PoE endpoints requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T100CAHM3/I 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, efficiency, and application-specific optimization.
The SM6T Series is designed specifically for robust transient suppression in automotive, industrial, and communications systems-delivering AEC-Q101-qualified, halogen-free TVS solutions in compact SMB packages with consistent clamping performance.
FAQ
What does the "CA" suffix indicate in SM6T100CAHM3/I?
The "CA" suffix in SM6T100CAHM3/I denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping for both positive and negative polarity surges. Unlike unidirectional variants (e.g., SM6T100AHM3/I), it has no polarity marking and functions identically across either terminal orientation-critical for protecting AC-coupled or floating signal paths without concern for installation direction.
Is SM6T100CAHM3/I qualified for automotive applications?
Yes, SM6T100CAHM3/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and Vishay's official documentation. This qualification validates its reliability under automotive temperature cycling, humidity, mechanical shock, and lifetime surge stress conditions-making it suitable for engine control units, ADAS camera modules, and body electronics where functional safety and long-term stability are mandatory.
What is the clamping voltage of SM6T100CAHM3/I and why does it matter?
The clamping voltage (VC) of SM6T100CAHM3/I is 137 V at 4.4 A peak pulse current (10/1000 μs waveform). This value defines the maximum voltage seen by protected circuitry during a surge event. A lower VC relative to VWM (100 V) yields a clamping ratio of 1.37, minimizing overvoltage stress on downstream ICs and improving system-level immunity without requiring additional series impedance.
How does the SMB package of SM6T100CAHM3/I compare to SMA or SMC alternatives?
The SMB (DO-214AA) package of SM6T100CAHM3/I measures 4.57 mm × 3.94 mm, offering 40 % smaller footprint than SMA and 70 % smaller than SMC. This enables high-density placement near connectors or IC pins while maintaining 600 W surge capability-unlike SMAJ100CA (400 W, SMA) or SMCJ100CA (1500 W, SMC)-making SM6T100CAHM3/I ideal for space-constrained automotive and portable electronics.
Does SM6T100CAHM3/I require special handling during PCB assembly?
No special handling is required for SM6T100CAHM3/I beyond standard SMT practices. Its MSL Level 1 rating permits exposure to ambient conditions indefinitely and supports peak reflow temperatures up to 260 °C without baking. Matte tin-plated leads comply with J-STD-002 and JESD 22-B102, ensuring reliable solder joint formation using standard lead-free paste and profile.
SM6T100CAHM3/I 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:
- -
- 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/I FAQ
1.How can I place an order for SM6T100CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100CAHM3/I 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/I reliable?
The price and inventory of SM6T100CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM6T100CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100CAHM3/I?
SM6T100CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100CAHM3/I 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/I?
For technical support, including SM6T100CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100CAHM3/I requirements.
6.How does Aetrix verify that SM6T100CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM6T100CAHM3/I 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/I meets industry standards.
7.What is the process for return or replacement of SM6T100CAHM3/I?
All SM6T100CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100CAHM3/I, 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/I part is unused and in its original packaging.
Return procedure for SM6T100CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100CAHM3/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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