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Vishay General Semiconductor - Diodes Division SM6T7V5CAHE3/52
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- Part No.:
- SM6T7V5CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T7V5CAHE3/52.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,044
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Product details
Overview
SM6T7V5CAHE3/52 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 max clamping voltage at 53.0 A peak pulse current (10/1000 μs), and 600 W peak pulse power - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SM6T7V5CAHE3/52 datasheet, SM6T7V5CAHE3/52 pinout, SM6T7V5CAHE3/52 application, or SM6T7V5CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.59), SMB package compatibility with automated SMT assembly, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage (<500 µA at VWM) and repeatable breakdown behavior under repetitive transients.
Rated for 150 °C maximum junction temperature and MSL Level 1 (260 °C reflow peak), the device supports high-reliability automotive and industrial deployments. Thermal resistance (RθJA = 100 °C/W) reflects standard SMB mounting on 5.0 mm × 5.0 mm copper pads per terminal.
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 (10/1000 μs) - Clamps destructive surges to safe levels for downstream ICs |
| PPPM | 600 W - Handles high-energy transients like ISO 7637-2 Pulse 1/2a/5a in automotive systems |
| IFSM | N/A - Bidirectional device; no forward surge rating applicable |
| TJ max | 150 °C - Supports operation in under-hood automotive environments and industrial enclosures |
| Package | SMB (DO-214AA) - Standardized surface-mount footprint compatible with IPC-7351B land patterns |
Pinout & Package
The SM6T7V5CAHE3/52 is a two-terminal bidirectional TVS diode housed in an SMB (DO-214AA) package with matte tin-plated leads. No polarity marking is present on the case, consistent with bidirectional functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical electrical behavior in either direction; connects across protected line and ground or between differential lines |
| Case (non-isolated) | Thermal and mechanical interface | Exposed metal slug provides thermal path to PCB copper; no electrical isolation from terminals |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, RS-485 buses, and ungrounded sensor outputs without polarity concerns |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 600 W peak pulse power (10/1000 μs) | Meets ISO 16750-2 and ISO 7637-2 surge immunity requirements for 12 V vehicle systems |
| Low clamping voltage (11.3 V @ 53 A) | Minimizes stress on 5 V/3.3 V logic interfaces during lightning or load-dump events |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles up to 260 °C peak |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from ESD and alternator load dump. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground. Use Value: Limits transient voltage to ≤11.3 V, preserving integrity of 5 V microcontroller I/O and analog front-end circuitry. | Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs against induced surges on long cable runs. IC Role / Device Role / Timing Role: Differential-line TVS connected across A/B bus lines and ground. Use Value: Maintains signal integrity by clamping common-mode surges while allowing full ±7 V data swing during normal operation. |
| Consumer USB Port Protection | Power Supply Input Stage |
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 clamp integrated into USB connector subcircuit. Use Value: Achieves <100 pF junction capacitance (typ.) to avoid signal rise-time degradation at 480 Mbps. | Use Scenario: Secondary-side overvoltage suppression on DC-DC converter outputs powering sensitive digital loads. IC Role / Device Role / Timing Role: Fast-response shunt protector placed after output filter capacitor. Use Value: Responds within nanoseconds to input transients, preventing latch-up or burnout of downstream LDOs and PMICs. |
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 | 400 W PPPM, higher VC (12.0 V @ 33.3 A), same SMB package | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin |
| 1.5KE7.5CA | 1500 W PPPM, DO-201 package (larger footprint), higher VC (12.5 V @ 120 A) | Requires PCB redesign; suited for primary-side AC input protection | Choose for higher-power industrial AC/DC front-end protection where space permits larger package |
Compared with SMAJ7.5CA and 1.5KE7.5CA, the SM6T7V5CAHE3/52 delivers optimal balance of AEC-Q101 compliance, 600 W surge handling, and compact SMB footprint - making it preferred for space-constrained, automotive-grade signal-line protection where reliability and manufacturability are critical.
Availability
SM6T7V5CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial communication ports, consumer USB protection, and power supply output staging requiring stable component supply and traceable sourcing.
Supply support for SM6T7V5CAHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SM6T Series is engineered for high-speed transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, low clamping voltage, and robust surge endurance are mandatory.
FAQ
What does the "CA" suffix indicate in SM6T7V5CAHE3/52?
The "CA" suffix denotes a bidirectional configuration, meaning the SM6T7V5CAHE3/52 provides symmetrical transient suppression in both polarities - essential for protecting AC-coupled signals, differential buses like RS-485, or ungrounded sensor outputs. Unlike unidirectional variants (e.g., SM6T7V5A), it has no cathode marking and conducts identically regardless of voltage polarity applied across its terminals.
Is SM6T7V5CAHE3/52 qualified for automotive use?
Yes, SM6T7V5CAHE3/52 is AEC-Q101 qualified, as confirmed by its "HE3" suffix and Vishay's 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, body electronics, and ADAS sensor modules.
What is the clamping voltage of SM6T7V5CAHE3/52 under a 10/1000 μs surge?
The SM6T7V5CAHE3/52 exhibits a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 53.0 A using the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuitry during surge events.
Does SM6T7V5CAHE3/52 require a heatsink for standard operation?
No, SM6T7V5CAHE3/52 does not require an external heatsink under typical transient conditions. Its 5.0 W steady-state power dissipation rating and RθJA of 100 °C/W assume mounting on 5.0 mm × 5.0 mm copper pads per terminal - sufficient for intermittent surge duty. Continuous DC power dissipation must remain below 5.0 W at TA = 50 °C.
How does the SMB package of SM6T7V5CAHE3/52 compare to SMA in size and thermal performance?
The SMB (DO-214AA) package of SM6T7V5CAHE3/52 measures 3.94 mm × 2.20 mm × 1.52 mm - approximately 20% smaller in footprint than SMA (DO-214AC). While both share similar thermal resistance characteristics when mounted per recommended pad layout, SMB offers tighter pitch compatibility and higher board density, especially in multi-channel protection arrays.
SM6T7V5CAHE3/52 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 (SMBJ)
SM6T7V5CAHE3/52 FAQ
1.How can I place an order for SM6T7V5CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T7V5CAHE3/52 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 SM6T7V5CAHE3/52 reliable?
The price and inventory of SM6T7V5CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T7V5CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SM6T7V5CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T7V5CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T7V5CAHE3/52?
SM6T7V5CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T7V5CAHE3/52 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 SM6T7V5CAHE3/52?
For technical support, including SM6T7V5CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T7V5CAHE3/52 requirements.
6.How does Aetrix verify that SM6T7V5CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T7V5CAHE3/52 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 SM6T7V5CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SM6T7V5CAHE3/52?
All SM6T7V5CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T7V5CAHE3/52, 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 SM6T7V5CAHE3/52 part is unused and in its original packaging.
Return procedure for SM6T7V5CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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