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Vishay General Semiconductor - Diodes Division SM6T24CAHE3_B/H
- Part No.:
- SM6T24CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T24CAHE3_B/H.pdf
- Description:
- 600W,24V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,062
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Product details
Overview
SM6T24CAHE3_B/H 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 24 V standoff voltage (VWM), 33.2 V max clamping voltage at 18 A (10/1000 μs), 600 W peak pulse power, and AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the SM6T24CAHE3_B/H datasheet, SM6T24CAHE3_B/H pinout, SM6T24CAHE3_B/H application, or SM6T24CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (1.38×VWM), RoHS-compliant AEC-Q101 qualification, SMB footprint compatibility, and 150 °C junction temperature rating.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical breakdown (VBR min/max = 22.8 V / 25.2 V at 1 mA) and clamping behavior. Its glass-passivated junction ensures stable leakage (<1 μA at 20.5 V) and robust surge handling under repetitive transients.
Thermal design relies on low RθJA (100 °C/W) and RθJL (20 °C/W), enabling reliable operation up to 150 °C junction temperature when mounted on 5.0 mm × 5.0 mm copper pads. The device meets MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20.5 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 22.8 V / 25.2 V at 1 mA - Confirmed bidirectional breakdown threshold with tight tolerance |
| VC @ IPPM | 33.2 V at 18 A (10/1000 μs) - Clamping voltage limiting downstream IC stress during surge events |
| PPPM | 600 W - Peak transient energy absorption capacity per IEC 61000-4-5 waveform |
| TJ max | +150 °C - Enables use in under-hood automotive environments without derating |
| Package | SMB (DO-214AA) - Standard surface-mount outline with 5.59 mm × 3.94 mm footprint and 2.20 mm height |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; polarity-unmarked for bidirectional operation; UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical PN junction; conducts during positive overvoltage excursions |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical PN junction; conducts during negative overvoltage excursions |
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 | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) without degradation |
| Glass passivated junction | Ensures stable leakage current (<1 μA) and long-term reliability under thermal cycling |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without moisture-induced failure |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs against load dump and ISO 7637-2 pulses in vehicle door modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between transceiver pins and connector interface. Use Value: Limits induced transients to ≤33.2 V, preserving transceiver integrity during 12 V system surges. | Use Scenario: Safeguarding differential CAN_H/CAN_L lines from ESD (IEC 61000-4-2 ±8 kV contact) in factory automation nodes. IC Role / Device Role / Timing Role: Symmetric transient suppressor bridging differential pair to ground. Use Value: Maintains signal integrity by clamping common-mode surges while adding <1 pF capacitance per line. |
| Consumer USB Port ESD Guard | Power Supply Input Surge Suppression |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines in portable medical devices. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed after primary filtering but before USB PHY. Use Value: Survives ≥1000 ESD strikes at ±8 kV without parameter shift, per AEC-Q101 stress protocols. | Use Scenario: Input-stage surge suppression on 24 V DC industrial power supplies feeding PLC I/O cards. IC Role / Device Role / Timing Role: Front-end clamping device shunting transients before DC-DC converter input. Use Value: Absorbs 600 W surges (10/1000 μs) without failure, preventing upstream fuse blowout or regulator latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24CA | Same VWM (20.5 V) and VC (33.2 V), but 400 W PPPM rating and SMA package (larger footprint) | Limited to non-automotive industrial use due to lack of AEC-Q101 qualification | Select when cost sensitivity outweighs automotive compliance and board space allows SMA outline |
| 1.5KE24CA | Higher PPPM (1500 W), axial DO-201 package, higher clamping voltage (38.9 V), no AEC-Q101 | Suitable only for high-energy, non-SMT legacy designs; incompatible with automated assembly | Choose only for through-hole prototyping or retrofit where PCB layout prohibits SMB placement |
Compared with SMAJ24CA and 1.5KE24CA, SM6T24CAHE3_B/H delivers automotive-grade reliability in a compact SMB footprint with optimized clamping ratio-critical for space-constrained, safety-critical ECUs where both surge margin and manufacturability matter.
Availability
SM6T24CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN networks, consumer USB port protection, and 24 V DC power supply surge suppression requiring stable component supply and AEC-Q101 traceability.
Supply support for SM6T24CAHE3_B/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, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.
The SM6T Series targets high-reliability transient suppression in automotive, industrial, and telecom systems-designed specifically to meet stringent AEC-Q101, IEC 61000-4-2/4-5, and UL 94 V-0 requirements in compact SMB packages.
FAQ
What does the "CA" suffix indicate in SM6T24CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning SM6T24CAHE3_B/H provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., SM6T24A), it has no polarity marking and functions identically in either direction-essential for protecting AC-coupled or floating signal lines such as CAN bus or audio interfaces.
Is SM6T24CAHE3_B/H qualified for automotive use?
Yes, SM6T24CAHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code "HE3" suffix and documentation (Doc. #88385, Rev. 09-Jan-2024). This qualification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and humidity bias, validating its suitability for under-hood and cabin-mounted automotive electronics.
What is the maximum clamping voltage of SM6T24CAHE3_B/H under standard test conditions?
The maximum clamping voltage (VC) of SM6T24CAHE3_B/H is 33.2 V when subjected to an 18 A peak pulse current with a 10/1000 μs waveform, measured per Figure 1 in Vishay Doc. #88385. This value defines the upper voltage limit imposed on protected circuitry during surge events.
Does SM6T24CAHE3_B/H require special PCB layout considerations?
Yes-SM6T24CAHE3_B/H must be mounted on minimum 5.0 mm × 5.0 mm copper pads per terminal to achieve rated 600 W pulse power and thermal performance. Trace inductance should be minimized, and the device placed as close as possible to the protected interface to reduce loop area and preserve clamping effectiveness.
How does the HE3 suffix differ from E3 or M3 in SM6T24CAHE3_B/H?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification, whereas "E3" is RoHS-compliant commercial grade and "M3" is halogen-free RoHS-compliant commercial grade. Only HE3 and HM3 variants carry automotive qualification-critical for Tier 1 suppliers requiring PPAP documentation and lot traceability.
SM6T24CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T24CAHE3_B/H FAQ
1.How can I place an order for SM6T24CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T24CAHE3_B/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 SM6T24CAHE3_B/H reliable?
The price and inventory of SM6T24CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T24CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T24CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T24CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T24CAHE3_B/H?
SM6T24CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T24CAHE3_B/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 SM6T24CAHE3_B/H?
For technical support, including SM6T24CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T24CAHE3_B/H requirements.
6.How does Aetrix verify that SM6T24CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T24CAHE3_B/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 SM6T24CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T24CAHE3_B/H?
All SM6T24CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T24CAHE3_B/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 SM6T24CAHE3_B/H part is unused and in its original packaging.
Return procedure for SM6T24CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T24CAHE3_B/H Tags
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