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Vishay General Semiconductor - Diodes Division SM6T7V5CAHM3/I
- Part No.:
- SM6T7V5CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T7V5CAHM3/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,839
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Product details
Overview
SM6T7V5CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V maximum clamping voltage (VC) at 53.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O ports.
For engineers reviewing the SM6T7V5CAHM3/I datasheet, SM6T7V5CAHM3/I pinout, SM6T7V5CAHM3/I application, or SM6T7V5CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, low clamping ratio (VC/VBR ≈ 1.59), and SMB package compatibility with automated SMT assembly.
Technical Context
The SM6T7V5CAHM3/I is a glass-passivated, bidirectional TVS diode optimized for fast response to transient overvoltages induced by inductive switching or ESD events. Its symmetrical junction structure enables identical clamping behavior in both polarities, with a typical junction capacitance under 1000 pF at zero bias and thermal resistance of 100 °C/W (junction-to-ambient).
It operates across -65 °C to +150 °C junction temperature range and meets JESD201 Class 2 whisker resistance. The device is rated for 600 W peak pulse power (10/1000 μs), 5.0 W steady-state power dissipation, and supports surge currents up to 53.0 A without degradation when mounted per recommended 0.2" × 0.2" copper pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 7.13 V - ensures reliable conduction onset above normal operating voltage in both directions |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 μA |
| VC @ IPPM | 11.3 V at 53.0 A - clamps transients to safe levels for downstream 5 V logic or analog circuitry |
| PPPM | 600 W - handles high-energy surges from inductive loads or lightning-induced coupling |
| TJ max | +150 °C - supports operation in under-hood automotive and industrial environments |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with IPC-7351B standard land pattern |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TC, HTRB |
Pinout & Package
SM6T7V5CAHM3/I uses an SMB (DO-214AA) surface-mount package with two terminals and no polarity marking (bidirectional configuration). The case conforms to UL 94 V-0 flammability rating and features matte tin-plated leads solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | No defined anode/cathode; either terminal serves as input/output for clamping in both directions |
| Case (cathode band absent) | Thermal and mechanical interface | Exposed metal slug provides thermal conduction path to PCB copper; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) when properly laid out |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JS709E material restrictions for green manufacturing |
| Low-inductance SMB package | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time) |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and jump-start transients in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt surge energy before reaching transceiver IC. Use Value: Maintains signal integrity below 11.3 V clamping threshold while surviving 53.0 A pulses - preventing latch-up or permanent damage to ISO 11898-2/3 compliant PHYs. |
Use Scenario: Safeguarding 24 V DC digital input cards in PLCs against field-wiring faults and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact inputs, coordinated with series impedance and filtering. Use Value: Enables robust 600 W surge handling without derating at +85 °C ambient - extending mean time between failures in factory automation systems. |
| Consumer USB Interface Protection | Telecom Line Card Surge Suppression |
Use Scenario: ESD protection for USB 2.0 D+/D− lines in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Secondary-level TVS after common-mode choke, absorbing ±15 kV contact discharge per IEC 61000-4-2. Use Value: Sub-1000 pF junction capacitance avoids signal integrity degradation at 480 Mbps data rates while meeting AEC-Q101 reliability benchmarks. |
Use Scenario: Primary surge protection on POTS line interfaces in VoIP gateways and DSLAM line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage protector before GDT or MOV, limiting let-through voltage to downstream protection stages. Use Value: 6.40 V VWM allows operation across full -48 V to -57 V nominal telecom battery range while clamping to 11.3 V within 1 ns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5CA | Lower peak pulse power (400 W), same SMB package, VBR = 8.33 V min, VC = 12.0 V @ 33.3 A | Not AEC-Q101 qualified; suited for commercial-grade consumer/industrial use only | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin is not required |
| SMCJ7.5CA | Higher peak pulse power (1500 W), larger SMC (DO-214AB) package, VBR = 8.33 V min, VC = 12.0 V @ 125 A | Requires larger PCB area and higher thermal mass; better for high-energy telecom/lightning protection | Select when system-level surge immunity exceeds IEC 61000-4-5 Level 4 and board space permits SMC footprint |
Compared with SMAJ7.5CA and SMCJ7.5CA, the SM6T7V5CAHM3/I delivers AEC-Q101 qualification and 600 W surge capability in the smallest standardized SMB footprint - making it optimal for space-constrained automotive and industrial modules where qualification and moderate surge margin are jointly critical.
Availability
SM6T7V5CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line card surge suppression requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SM6T7V5CAHM3/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 was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and communications equipment - balancing clamping performance, thermal robustness, and manufacturability.
FAQ
What does the "CA" suffix indicate in SM6T7V5CAHM3/I?
The "CA" suffix in SM6T7V5CAHM3/I denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping in both forward and reverse directions. Unlike unidirectional variants (e.g., SM6T7V5A), SM6T7V5CAHM3/I has no cathode marking and is used where polarity of transient events cannot be assumed - such as AC signal lines, differential buses, or floating grounds. This is confirmed in Vishay's SM6T datasheet revision 09-Jan-2024, section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is SM6T7V5CAHM3/I AEC-Q101 qualified, and what does the "HM3" suffix signify?
Yes, SM6T7V5CAHM3/I is AEC-Q101 qualified. The "HM3" suffix indicates halogen-free, RoHS-compliant construction with full AEC-Q101 stress testing validation - including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. This distinguishes it from commercial-grade "M3" parts and confirms suitability for automotive powertrain, chassis, and ADAS applications per Vishay's ordering information table and mechanical data section.
What is the clamping voltage of SM6T7V5CAHM3/I at its rated peak pulse current?
The SM6T7V5CAHM3/I has a maximum clamping voltage (VC) of 11.3 V at 53.0 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Figure 1 and Table "ELECTRICAL CHARACTERISTICS" in the Vishay SM6T datasheet (Doc. #88385), and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring compatibility with 5 V or 3.3 V logic interfaces.
Can SM6T7V5CAHM3/I replace SM6T7V5A in a design?
No, SM6T7V5CAHM3/I cannot directly replace SM6T7V5A because they differ in polarity configuration and qualification: SM6T7V5A is unidirectional with cathode marking and commercial-grade "A" suffix, while SM6T7V5CAHM3/I is bidirectional, AEC-Q101 qualified, and halogen-free. Substitution would require circuit review for polarity dependence, surge margin, and compliance requirements - especially in automotive designs where HM3 certification is mandatory.
What is the thermal resistance of SM6T7V5CAHM3/I, and how does it affect PCB layout?
The SM6T7V5CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay SM6T datasheet Thermal Characteristics table. This value assumes minimal copper area; increasing pad size or adding internal ground planes reduces RθJA, improving power handling during repetitive surges. Layout must follow the recommended mounting pad dimensions in the package outline drawing to ensure rated 600 W pulse capability.
SM6T7V5CAHM3/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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 53A
- 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)
SM6T7V5CAHM3/I FAQ
1.How can I place an order for SM6T7V5CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T7V5CAHM3/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 SM6T7V5CAHM3/I reliable?
The price and inventory of SM6T7V5CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T7V5CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM6T7V5CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T7V5CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T7V5CAHM3/I?
SM6T7V5CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T7V5CAHM3/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 SM6T7V5CAHM3/I?
For technical support, including SM6T7V5CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T7V5CAHM3/I requirements.
6.How does Aetrix verify that SM6T7V5CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM6T7V5CAHM3/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 SM6T7V5CAHM3/I meets industry standards.
7.What is the process for return or replacement of SM6T7V5CAHM3/I?
All SM6T7V5CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T7V5CAHM3/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 SM6T7V5CAHM3/I part is unused and in its original packaging.
Return procedure for SM6T7V5CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T7V5CAHM3/I Tags
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