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Vishay General Semiconductor - Diodes Division SM6T100CAHE3/52
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- Part No.:
- SM6T100CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100CAHE3/52.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,476
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Product details
Overview
SM6T100CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM), 137 V clamping voltage (VC) at 4.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It provides robust ESD and surge protection for automotive sensor signal lines, power rails, and I/O interfaces.
For engineers reviewing the SM6T100CAHE3/52 datasheet, SM6T100CAHE3/52 pinout, SM6T100CAHE3/52 application, or SM6T100CAHE3/52 equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, low clamping ratio (1.37×VWM), RoHS-compliant matte tin terminations, and MSL Level 1 reflow compatibility up to 260 °C - critical for automotive-grade PCB assembly and high-reliability industrial designs.
Technical Context
The SM6T100CAHE3/52 implements a silicon avalanche junction architecture optimized for fast response (<1 ns) to transient overvoltages. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity-dependent design constraints in AC-coupled or floating signal paths.
Designed for surface-mount placement on 5.0 mm × 5.0 mm copper pads per terminal, it delivers 600 W pulse handling with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to TJ = +150 °C in compact automotive ECUs and industrial controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin for 12 V/24 V automotive systems. |
| VBR (min/max) | 114 V / 126 V at IT = 1 mA - breakdown threshold range confirming tight manufacturing tolerance for predictable turn-on behavior. |
| VC @ IPPM | 137 V at 4.4 A (10/1000 μs) - clamping voltage limits downstream IC stress during ISO 7637-2 Pulse 1/2a/5a transients. |
| PPPM | 600 W - peak pulse power rating validated per JEDEC-standard 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 immunity. |
| TJ max. | +150 °C - maximum junction temperature enabling deployment in under-hood automotive environments without derating. |
| AEC-Q101 | Qualified - certified for automotive applications per stress test requirements including HTOL, TC, HTRB, and UHAST. |
| Package | SMB (DO-214AA) - standardized 2-pin SMD outline with 2.20 mm × 3.94 mm footprint and 2.18 mm minimum cathode band width. |
Pinout & Package
SM6T100CAHE3/52 uses an SMB (DO-214AA) surface-mount package with two terminals: no polarity marking for bidirectional operation. The device has symmetrical electrical characteristics in both directions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as anode or cathode depending on instantaneous polarity; enables single-device protection of AC signals or ungrounded buses. |
| Case (body) | Non-electrical mechanical interface | Plastic-molded SMB body provides UL 94 V-0 flammability rating and mechanical stability during reflow and vibration. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance in both directions eliminates need for polarity-aware layout and supports differential bus protection. |
| 600 W peak pulse power | Withstands repetitive ISO 7637-2 load-dump surges up to 12 V systems without degradation when mounted on recommended 5.0 mm × 5.0 mm copper pads. |
| AEC-Q101 qualification | Validated for automotive use including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress testing (UHAST). |
| Low clamping ratio | VC/VWM = 1.37 ensures minimal overvoltage exposure to protected ICs - critical for safeguarding 3.3 V or 5 V logic interfaces. |
| MSL Level 1 | Rated for peak reflow temperatures up to 260 °C with unlimited floor life, simplifying SMT line integration without dry-pack requirements. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting transient voltage to ≤137 V during 10/1000 μs pulses while maintaining DC signal integrity. Use Value: Prevents latch-up or permanent damage to 12-bit ADC front-ends and op-amp buffers in harsh automotive environments. |
Use Scenario: Safeguarding CAN_H and CAN_L lines in vehicle body control units against ESD (IEC 61000-4-2 ±8 kV contact) and burst transients (IEC 61000-4-4). IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) bidirectional clamp absorbing energy without disrupting 1 Mbps CAN signaling integrity. Use Value: Maintains bit error rate <10⁻¹² by limiting common-mode voltage excursions beyond transceiver common-mode range (±12 V). |
| Power Supply Rail Protection | Consumer USB Port ESD Clamp |
Use Scenario: Secondary-side overvoltage suppression on 12 V/24 V DC-DC converter outputs feeding infotainment head units and ADAS cameras. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting surge current away from LDO regulators and PMICs during battery disconnect events. Use Value: Enables compliance with ISO 16750-2 Section 4.7 (load dump) without requiring additional series impedance or active crowbar circuits. |
Use Scenario: Board-level ESD protection for USB 2.0 D+/D− lines in portable diagnostic tools and telematics gateways. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ ≈ 100 pF at 0 V) preserving signal rise/fall times <1 ns. Use Value: Passes USB-IF eye diagram tests while surviving ≥10000 ESD strikes at ±8 kV contact per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | Same VWM (100 V), but lower PPPM (400 W); SMA package (larger footprint, higher RθJA = 140 °C/W). | Not AEC-Q101 qualified; limited to commercial-grade industrial applications without automotive qualification requirements. | Select when cost sensitivity outweighs automotive qualification and thermal performance needs. |
| 1.5KE100CA | Higher PPPM (1500 W), through-hole DO-201 package; significantly larger size and incompatible with automated SMT placement. | Used in legacy power supply designs where board space and assembly method preclude SMD solutions. | Choose only for retrofit or high-energy surge scenarios where SMB footprint is insufficient and manual assembly is acceptable. |
Compared with SMAJ100CA and 1.5KE100CA, SM6T100CAHE3/52 uniquely combines AEC-Q101 qualification, SMB footprint, 600 W pulse rating, and MSL Level 1 reflow capability - making it the optimal choice for new automotive electronics designs requiring production-ready, high-volume SMT compatibility.
Availability
SM6T100CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and power supply rail protection requiring stable component supply across multi-year production cycles.
Supply support for SM6T100CAHE3/52 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SM6T Series is engineered specifically for high-reliability transient suppression in automotive and industrial environments, delivering consistent clamping performance under extreme thermal and electrical stress.
FAQ
What does the "CA" suffix indicate in SM6T100CAHE3/52?
The "CA" suffix in SM6T100CAHE3/52 denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping in both forward and reverse directions. This eliminates polarity concerns during PCB layout and enables protection of AC-coupled or floating signal paths such as CAN bus lines or differential sensor outputs. The SM6T100CAHE3/52 achieves identical VBR and VC values regardless of voltage polarity applied across its terminals.
Is SM6T100CAHE3/52 qualified for automotive applications?
Yes, SM6T100CAHE3/52 is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3". This qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress testing (UHAST), and electrostatic discharge (ESD) per JESD22-A114. The device is approved for use in engine control units, body electronics, and ADAS modules.
What is the clamping voltage of SM6T100CAHE3/52 at its rated peak pulse current?
The SM6T100CAHE3/52 has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 4.4 A. This value is measured per JEDEC standard conditions and reflects the actual voltage seen by protected circuitry during surge events - a key parameter for ensuring downstream ICs remain within their absolute maximum ratings.
Does SM6T100CAHE3/52 require special PCB layout considerations?
Yes, SM6T100CAHE3/52 must be mounted on minimum recommended copper pad areas of 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal to achieve its rated 600 W peak pulse power and thermal performance. Smaller pads reduce heat dissipation, leading to premature failure under repeated transients. The SMB footprint also requires strict adherence to Vishay's mounting pad layout dimensions to ensure solder joint reliability during thermal cycling.
How does the "HE3" suffix differ from "E3" in SM6T100CAHE3/52?
The "HE3" suffix in SM6T100CAHE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification, whereas "E3" alone denotes RoHS-compliant commercial-grade parts without automotive qualification. HE3 devices undergo additional stress testing and lot traceability protocols required for automotive production, including extended temperature cycling and humidity testing - making SM6T100CAHE3/52 suitable for Tier 1 supplier BOMs.
SM6T100CAHE3/52 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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)
SM6T100CAHE3/52 FAQ
1.How can I place an order for SM6T100CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100CAHE3/52 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 SM6T100CAHE3/52 reliable?
The price and inventory of SM6T100CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SM6T100CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100CAHE3/52?
SM6T100CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100CAHE3/52 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 SM6T100CAHE3/52?
For technical support, including SM6T100CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100CAHE3/52 requirements.
6.How does Aetrix verify that SM6T100CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T100CAHE3/52 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 SM6T100CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SM6T100CAHE3/52?
All SM6T100CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100CAHE3/52, 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 SM6T100CAHE3/52 part is unused and in its original packaging.
Return procedure for SM6T100CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100CAHE3/52 Tags
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