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Vishay General Semiconductor - Diodes Division SM6T10CAHM3/H
- Part No.:
- SM6T10CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T10CAHM3/H.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,898
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Product details
Overview
SM6T10CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMB (DO-214AA) package, featuring 10 V standoff voltage (VWM), 11.4–12.6 V breakdown voltage (VBR), 16.7 V clamping voltage (VC) at 36 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform. It protects signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the SM6T10CAHM3/H datasheet, SM6T10CAHM3/H pinout, SM6T10CAHM3/H application, or SM6T10CAHM3/H equivalent, key selection criteria include bidirectional polarity, AEC-Q101 qualification, halogen-free RoHS compliance, low clamping ratio (VC/VBR ≈ 1.4), and SMB thermal performance (RθJL = 20 °C/W).
Technical Context
The SM6T10CAHM3/H employs a glass-passivated silicon junction optimized for fast response to transient overvoltages, with symmetrical bidirectional conduction enabling protection of AC-coupled or differential signal paths without polarity concerns. Its clamping behavior is characterized under standardized 10/1000 μs and 8/20 μs waveforms per IEC 61000-4-5.
Designed for surface-mount assembly on 5.0 mm × 5.0 mm copper pads per terminal, it achieves 600 W peak pulse power dissipation while maintaining low inductance and meeting MSL Level 1 (260 °C reflow peak). The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range. |
| VBR min/max | 11.4 V / 12.6 V at 1.0 mA - Confirmed breakdown threshold ensures predictable turn-on during transients. |
| VC @ IPPM | 16.7 V at 36.0 A (10/1000 μs) - Clamping voltage limits downstream IC stress to safe levels during surge events. |
| PPPM | 600 W - Peak transient energy absorption capacity compatible with IEC 61000-4-5 Level 4 immunity testing. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 2.20 mm height and 5.59 mm length; supports automated placement. |
| TJ max | +150 °C - Enables reliable operation in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking. Cathode/anode terminals are symmetrical; both ends function identically in either direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Transient current entry point (bidirectional) | Accepts surge current from either direction; connects to protected line or ground reference. |
| Cathode (Terminal 2) | Transient current exit point (bidirectional) | Completes low-impedance path to return path during clamping; electrically identical to Terminal 1. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., CAN, RS-485), and ungrounded sensor outputs without polarity constraints. |
| 600 W peak pulse power | Withstands 36 A surges (10/1000 μs) - sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 testing. |
| AEC-Q101 qualified + HM3 suffix | Halogen-free, RoHS-compliant construction validated for automotive applications including engine control, ADAS sensors, and body electronics. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during clamping - critical for protecting 12 V rail interfaces and 3.3 V/5 V logic inputs. |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
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 inductive kick. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor output and microcontroller ADC input to clamp ±200 V transients. Use Value: Prevents latch-up or permanent damage to 12-bit ADC front-ends while maintaining signal integrity below 10 V common-mode range. |
Use Scenario: Shielding CAN_H/CAN_L differential pair in factory automation gateways against ESD and cable discharge events. IC Role / Device Role / Timing Role: Paired SM6T10CAHM3/H devices across CAN bus lines to suppress common-mode transients up to ±30 kV contact ESD. Use Value: Maintains CAN FD bit timing integrity by limiting bus voltage excursion to ≤16.7 V during 10/1000 μs surges. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side transient suppression on 12 V DC output rails of wall adapters used in smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Bidirectional clamp across regulated output to absorb coupling from primary-side MOSFET switching noise and lightning-induced surges. Use Value: Eliminates need for separate unidirectional TVS on each rail side; reduces BOM count while meeting UL 62368-1 surge requirements. |
Use Scenario: Front-end protection of Ethernet PHY interface on telecom line cards handling PoE++ (90 W) and data traffic. IC Role / Device Role / Timing Role: Placed between transformer center-tap and ground to clamp longitudinal surges induced on twisted-pair cabling. Use Value: Limits common-mode voltage rise to <17 V during 10/1000 μs surges, preserving PHY ESD tolerance margin and preventing link dropouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA | Same VWM (10 V), lower PPPM (400 W), SMA package (higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive under-hood use due to thermal derating | Prefer SM6T10CAHM3/H where 600 W rating or AEC-Q101 qualification is required. |
| 1.5KE10CA | Same VWM (10 V), higher PPPM (1500 W), axial DO-201 package (manual assembly only) | Not SMT-compatible; unsuitable for high-density PCBs or automated production | Choose SM6T10CAHM3/H for surface-mount volume manufacturing and space-constrained designs. |
Compared with SMAJ10CA and 1.5KE10CA, the SM6T10CAHM3/H delivers superior thermal performance in SMT form factor, AEC-Q101 validation for automotive deployment, and optimal balance of clamping voltage, surge capacity, and board-level manufacturability.
Availability
SM6T10CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interfaces, consumer power adapter outputs, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SM6T10CAHM3/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 was engineered specifically for high-reliability transient suppression in automotive, industrial, and communications systems-prioritizing low clamping voltage, bidirectional symmetry, and AEC-Q101 compliance from wafer to final test.
FAQ
What does the "CA" suffix indicate in SM6T10CAHM3/H?
The "CA" suffix in SM6T10CAHM3/H denotes a bidirectional configuration, meaning the device clamps transient voltages symmetrically in both directions-ideal for protecting AC-coupled signals, differential buses like CAN or RS-485, and ungrounded sensor outputs. Unlike unidirectional variants (e.g., SM6T10A), SM6T10CAHM3/H has no cathode marking and functions identically across both terminals.
Is SM6T10CAHM3/H qualified for automotive applications?
Yes, SM6T10CAHM3/H is AEC-Q101 qualified and carries the HM3 suffix, confirming halogen-free, RoHS-compliant construction validated for automotive use. It meets requirements for temperature cycling, high-temperature reverse bias (HTRB), and ESD robustness-making it suitable for engine control modules, ADAS sensors, and body electronics where reliability under harsh conditions is mandatory.
What is the clamping voltage of SM6T10CAHM3/H and why does it matter?
The SM6T10CAHM3/H has a maximum clamping voltage (VC) of 16.7 V at 36.0 A (10/1000 μs waveform). This value represents the peak voltage seen by downstream circuitry during a surge event. A low VC relative to VBR (clamping ratio ~1.4) ensures sensitive components-such as 12 V-rated microcontrollers or 5 V logic interfaces-are not subjected to destructive overvoltage, directly improving system-level EMC robustness.
How does the SMB package of SM6T10CAHM3/H compare thermally to larger packages?
The SMB (DO-214AA) package of SM6T10CAHM3/H provides a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, significantly better than SMA (RθJL ≈ 35 °C/W) and far superior to axial DO-201 (RθJL > 50 °C/W). When mounted on 5.0 mm × 5.0 mm copper pads, this enables effective heat dissipation during repetitive surge events-critical for sustained operation in automotive and industrial environments.
Can SM6T10CAHM3/H replace unidirectional TVS diodes in existing designs?
No-SM6T10CAHM3/H is strictly bidirectional and cannot substitute for unidirectional TVS diodes (e.g., SM6T10A) in DC-biased circuits where polarity-sensitive clamping is required. Attempting replacement may result in unintended conduction during normal operation. Use SM6T10CAHM3/H only where symmetrical protection is needed, such as AC signal lines or differential interfaces; verify circuit topology and bias conditions before substitution.
SM6T10CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 41A
- 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)
SM6T10CAHM3/H FAQ
1.How can I place an order for SM6T10CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T10CAHM3/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 SM6T10CAHM3/H reliable?
The price and inventory of SM6T10CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T10CAHM3/H is usually 5 days.
3.What payment methods are accepted for SM6T10CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T10CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T10CAHM3/H?
SM6T10CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T10CAHM3/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 SM6T10CAHM3/H?
For technical support, including SM6T10CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T10CAHM3/H requirements.
6.How does Aetrix verify that SM6T10CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SM6T10CAHM3/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 SM6T10CAHM3/H meets industry standards.
7.What is the process for return or replacement of SM6T10CAHM3/H?
All SM6T10CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T10CAHM3/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 SM6T10CAHM3/H part is unused and in its original packaging.
Return procedure for SM6T10CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T10CAHM3/H Tags
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