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Vishay General Semiconductor - Diodes Division SM6T7V5CA-M3/5B
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- Part No.:
- SM6T7V5CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T7V5CA-M3/5B.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,611
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Product details
Overview
SM6T7V5CA-M3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 7.13 V minimum breakdown voltage (VBR), 11.3 V maximum clamping voltage (VC) at 53.0 A peak pulse current (IPPM), 600 W peak pulse power (10/1000 μs), and operates across -65 °C to +150 °C junction temperature. It is widely used to protect automotive sensor interfaces and industrial I/O lines against ESD and inductive switching surges.
For engineers reviewing the SM6T7V5CA-M3/5B datasheet, SM6T7V5CA-M3/5B pinout, SM6T7V5CA-M3/5B application, or SM6T7V5CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.59), halogen-free RoHS compliance (M3 suffix), AEC-Q101 qualification readiness, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
The SM6T7V5CA-M3/5B implements a glass-passivated silicon junction optimized for fast response (<1 ns) to transient overvoltages. Its bidirectional architecture enables symmetric clamping in both polarities without polarity marking, supporting protection of AC-coupled or differential signal paths.
It delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to 150 °C junction temperature when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA test current - defines precise voltage threshold where clamping initiates in either direction |
| VWM | 6.40 V - maximum continuous reverse stand-off voltage before leakage exceeds 500 μA |
| VC @ IPPM | 11.3 V at 53.0 A (10/1000 μs) - actual clamped voltage seen by protected circuit during surge |
| PPPM | 600 W - peak transient energy absorption capacity under standardized surge waveform |
| TJ range | -65 °C to +150 °C - ensures functionality in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - surface-mount outline with 2.20 mm max height, compatible with IPC-7351B footprint |
Pinout & Package
SM6T7V5CA-M3/5B uses an SMB (DO-214AA) package with two terminals: no polarity marking due to bidirectional construction. The device is symmetric - either terminal functions as anode or cathode depending on applied voltage polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal conducts when reverse-biased beyond VBR; no fixed polarity - supports AC or differential line protection |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device symmetry eliminates orientation constraints during placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity concerns |
| 600 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges when properly laid out |
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<500 μA at VWM), and long-term reliability under thermal cycling |
| Halogen-free, RoHS-compliant (M3) | Meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability - suitable for automotive and green electronics |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal line and ground to clamp transients before they reach downstream ASIC or MCU input pins. Use Value: Clamps 11.3 V at 53 A, limiting stress on 5 V or 3.3 V interface circuits while maintaining signal integrity during normal operation. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V DC input lines to absorb inductive kickback and lightning-induced spikes. Use Value: 600 W rating handles repetitive 10/1000 μs surges common in factory automation, with low clamping voltage preserving input logic thresholds. |
| Consumer USB Port Protection | Telecom Line Interface |
Use Scenario: Shielding USB 2.0 D+/D- lines in portable devices from human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at connector to shunt ESD current before it couples into PHY IC. Use Value: Sub-1 ns response time and 11.3 V clamping prevent latch-up or damage to 3.3 V USB transceivers during ±8 kV contact discharge. | Use Scenario: Protecting Ethernet PHY or DSL line drivers from induced surges on twisted-pair telecom cables. IC Role / Device Role / Timing Role: Differential-mode TVS across data pair to suppress common-mode transients without affecting signal swing. Use Value: Symmetric VBR (7.13–7.88 V) ensures balanced clamping on both lines, minimizing skew and preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5CA | Same SMB package, 7.5 V nominal VBR, but lower 400 W PPPM rating and higher VC (12.0 V @ 33.3 A) | Limited to lower-energy transients; not recommended for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 | Select SMAJ7.5CA only if system-level surge testing confirms 400 W sufficiency and layout minimizes inductance |
| 1.5SMC7.5CA | Higher 1500 W PPPM, larger SMC (DO-214AB) package (4.5 mm width), same VBR range | Requires PCB area increase and different reflow profile; better suited for primary-side power rail protection | Choose 1.5SMC7.5CA when protecting 12 V or 24 V supply rails where higher energy handling is mandatory |
Compared with SMAJ7.5CA and 1.5SMC7.5CA, SM6T7V5CA-M3/5B offers optimal balance of compact SMB footprint, 600 W capability, and halogen-free construction - making it preferred for space-constrained automotive and industrial PCBs requiring AEC-Q101 alignment.
Availability
SM6T7V5CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer USB interface designs, and telecom line driver circuits requiring stable component supply with full traceability and lifecycle support.
Supply support for SM6T7V5CA-M3/5B 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, precision, and automotive-grade qualification.
The SM6T Series is engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping performance and AEC-Q101 readiness are critical design requirements.
FAQ
What does the "CA" suffix indicate in SM6T7V5CA-M3/5B?
The "CA" suffix in SM6T7V5CA-M3/5B denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., SM6T7V5A), SM6T7V5CA-M3/5B has no cathode marking and functions identically regardless of voltage polarity - essential for protecting AC-coupled or differential signal lines without polarity constraints.
Is SM6T7V5CA-M3/5B qualified to AEC-Q101?
SM6T7V5CA-M3/5B itself is halogen-free and RoHS-compliant (M3 suffix), but AEC-Q101 qualification applies only to variants with HE3 or HM3 suffixes (e.g., SM6T7V5CAHM3_B/I). While SM6T7V5CA-M3/5B shares the same die and construction, formal AEC-Q101 test reports and automotive-grade traceability require the HM3 ordering code - confirm part number suffix before automotive deployment.
What is the clamping voltage of SM6T7V5CA-M3/5B under a 10/1000 μs surge?
The maximum clamping voltage (VC) of SM6T7V5CA-M3/5B under a 10/1000 μs waveform is 11.3 V at 53.0 A peak pulse current (IPPM). This value is measured per Figure 1 in Vishay document 88385 and represents the upper limit of voltage imposed on the protected circuit during standardized surge testing - critical for ensuring downstream 5 V or 3.3 V components remain within safe operating limits.
Can SM6T7V5CA-M3/5B replace SM6T7V5A in a design?
SM6T7V5CA-M3/5B cannot directly replace SM6T7V5A without circuit review: SM6T7V5A is unidirectional (cathode-marked) and intended for DC line protection, while SM6T7V5CA-M3/5B is bidirectional and lacks polarity marking. Substitution may cause unintended conduction in DC bias networks. Verify signal topology - use SM6T7V5CA-M3/5B only where bidirectional clamping is required and no steady-state reverse bias exists.
What is the thermal resistance of SM6T7V5CA-M3/5B, and how does it affect layout?
SM6T7V5CA-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain TJ ≤ 150 °C under repeated surges, PCB layout must follow Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal - undersized pads will elevate junction temperature and degrade surge endurance of SM6T7V5CA-M3/5B.
SM6T7V5CA-M3/5B 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T7V5CA-M3/5B FAQ
1.How can I place an order for SM6T7V5CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T7V5CA-M3/5B 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 SM6T7V5CA-M3/5B reliable?
The price and inventory of SM6T7V5CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T7V5CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SM6T7V5CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T7V5CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T7V5CA-M3/5B?
SM6T7V5CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T7V5CA-M3/5B 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 SM6T7V5CA-M3/5B?
For technical support, including SM6T7V5CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T7V5CA-M3/5B requirements.
6.How does Aetrix verify that SM6T7V5CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T7V5CA-M3/5B 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 SM6T7V5CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SM6T7V5CA-M3/5B?
All SM6T7V5CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T7V5CA-M3/5B, 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 SM6T7V5CA-M3/5B part is unused and in its original packaging.
Return procedure for SM6T7V5CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T7V5CA-M3/5B Tags
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