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Vishay General Semiconductor - Diodes Division SM6T36CAHE3/52
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- Part No.:
- SM6T36CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T36CAHE3/52.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,413
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Product details
Overview
SM6T36CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 36 V breakdown voltage (VBR = 34.2–37.8 V at 1 mA), 600 W peak pulse power (10/1000 μs), and clamping voltage of 49.9 V at 12 A. It provides robust ESD and surge protection for automotive sensor signal lines, power rails, and I/O interfaces.
For engineers reviewing the SM6T36CAHE3/52 datasheet, SM6T36CAHE3/52 pinout, SM6T36CAHE3/52 application, or SM6T36CAHE3/52 equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.4), 150 °C max junction temperature, and compatibility with automated SMT assembly on standard SMB footprints.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VWM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1 μA at 30.8 V) and repeatable breakdown performance under repetitive transients.
The device is optimized for low-inductance PCB layout, featuring a compact SMB package with 20 °C/W junction-to-lead thermal resistance and MSL Level 1 rating (260 °C reflow peak). It meets AEC-Q101 stress test requirements for automotive use, including temperature cycling, HTRB, and ESD (HBM ≥ 8 kV).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at 1 mA - defines reliable conduction onset under surge conditions |
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 49.9 V at 12.0 A (10/1000 μs) - clamping voltage limiting protected circuit stress during surge |
| PPPM | 600 W - peak transient energy absorption capability per single pulse |
| TJ max | +150 °C - enables operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 3.94 mm footprint |
| AEC-Q101 | Qualified - validated for automotive reliability per stress test requirements |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; polarity unmarked for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One terminal of symmetrical junction; accepts surge current in either direction |
| Cathode | Transient current entry (negative polarity) | Second terminal of symmetrical junction; functionally identical to Anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and leakage in both directions - eliminates polarity concerns in AC-coupled or floating lines |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surges without degradation |
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules and ADAS sensor interfaces |
| Low clamping ratio | VC/VBR ≈ 1.4 - minimizes overvoltage stress on downstream ICs during clamping |
| MSL Level 1 | Compatible with standard lead-free reflow profiles up to 260 °C peak - no moisture sensitivity handling required |
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 switching transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt surge energy before reaching sensor signal conditioning circuitry. Use Value: Maintains signal integrity by limiting transient overvoltage to ≤49.9 V while surviving repeated 600 W pulses per ISO 16750-2. | Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD (IEC 61000-4-2 ±8 kV contact) and fast transient bursts in factory automation nodes. IC Role / Device Role / Timing Role: Low-capacitance TVS pair (one per line) providing symmetrical clamping without distorting 1 Mbps CAN signaling waveform. Use Value: Prevents bus lockup or transceiver damage while adding <0.5 ns propagation delay due to low-junction capacitance and minimal lead inductance. |
| Consumer Power Adapter Input | Telecom DSL Line Interface |
Use Scenario: Secondary-side DC input protection in wall adapters subjected to lightning-induced surges on connected USB or PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after rectifier but before primary DC-DC controller to absorb residual transients escaping upstream filtering. Use Value: Enables compliance with UL 62368-1 surge immunity requirements using a single discrete component with 30.8 V working voltage margin. | Use Scenario: Overvoltage protection on POTS/DSL line cards where asymmetric surges (e.g., tip-ring reversal) require equal response in both polarities. IC Role / Device Role / Timing Role: Bidirectional clamping element bridging line-to-line or line-to-ground, absorbing longitudinal-mode surges up to 600 W. Use Value: Eliminates need for dual unidirectional devices, reducing BOM count and PCB area while maintaining full symmetry per GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Same VBR range and SMB package, but rated for 400 W PPPM (vs. 600 W); no AEC-Q101 qualification | Suitable for commercial-grade industrial equipment where automotive reliability not mandated | Select SMAJ36CA when cost sensitivity outweighs surge margin and automotive qualification needs |
| 1.5KE36CA | Through-hole DO-204AB package, 600 W rating, same VBR/VC; higher thermal resistance (RθJA = 150 °C/W vs. 100 °C/W) | Used in legacy designs or high-power boards where through-hole mounting is retained | Choose 1.5KE36CA only if board revision prohibits SMT adoption or requires higher mechanical robustness |
Compared with SMAJ36CA and 1.5KE36CA, SM6T36CAHE3/52 delivers superior surge margin (600 W), automotive-grade reliability (AEC-Q101), and lower thermal resistance-making it optimal for space-constrained, high-reliability automotive and industrial SMT designs.
Availability
SM6T36CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor systems, industrial CAN networks, consumer power adapters, and telecom DSL line interfaces requiring stable component supply and long-term lifecycle support.
Supply support for SM6T36CAHE3/52 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 high-performance applications.
The SM6T Series is designed specifically for robust transient suppression in automotive, industrial, and communications systems-delivering AEC-Q101 qualified, high-power TVS protection in compact SMB packages.
FAQ
What is the breakdown voltage tolerance for SM6T36CAHE3/52?
The SM6T36CAHE3/52 has a specified breakdown voltage range of 34.2 V to 37.8 V at 1 mA test current, representing a ±5% tolerance around the nominal 36 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise system-level surge margin calculations in automotive and industrial designs.
Is SM6T36CAHE3/52 suitable for automotive applications?
Yes, SM6T36CAHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias, and ESD-and is rated for operation from −65 °C to +150 °C, making it appropriate for engine control units, body electronics, and ADAS sensor interfaces.
What does the "CA" suffix indicate in SM6T36CAHE3/52?
The "CA" suffix in SM6T36CAHE3/52 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., SM6T36A), SM6T36CAHE3/52 has no cathode marking and exhibits identical VBR, VC, and leakage characteristics regardless of voltage polarity applied across its terminals.
What is the maximum clamping voltage of SM6T36CAHE3/52 under surge conditions?
The SM6T36CAHE3/52 clamps to a maximum of 49.9 V when subjected to a 10/1000 μs surge waveform with peak current of 12.0 A. This value is guaranteed per the datasheet and reflects worst-case device behavior at TA = 25 °C; actual clamping may be slightly lower at elevated temperatures due to positive TC of VC.
Does SM6T36CAHE3/52 require special PCB layout considerations?
Yes-optimal performance requires mounting SM6T36CAHE3/52 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power. Minimize trace length between the device and protected node, avoid vias in current paths, and ensure symmetric routing to preserve bidirectional impedance balance for high-frequency transients.
SM6T36CAHE3/52 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
SM6T36CAHE3/52 FAQ
1.How can I place an order for SM6T36CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T36CAHE3/52 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 SM6T36CAHE3/52 reliable?
The price and inventory of SM6T36CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T36CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SM6T36CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T36CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T36CAHE3/52?
SM6T36CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T36CAHE3/52 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 SM6T36CAHE3/52?
For technical support, including SM6T36CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T36CAHE3/52 requirements.
6.How does Aetrix verify that SM6T36CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T36CAHE3/52 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 SM6T36CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SM6T36CAHE3/52?
All SM6T36CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T36CAHE3/52, 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 SM6T36CAHE3/52 part is unused and in its original packaging.
Return procedure for SM6T36CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T36CAHE3/52 Tags
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