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Vishay General Semiconductor - Diodes Division SM6T100CAHE3_A/H
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- Part No.:
- SM6T100CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100CAHE3_A/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,266
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Product details
Overview
SM6T100CAHE3_A/H 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, industrial I/O interfaces, and telecom power rails.
For engineers reviewing the SM6T100CAHE3_A/H datasheet, SM6T100CAHE3_A/H pinout, SM6T100CAHE3_A/H application, or SM6T100CAHE3_A/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, low clamping ratio (1.37×VWM), thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) of 114–126 V (min/max at 1 mA) and reverse leakage (ID) ≤1 μA at 100 V standoff. Its glass-passivated junction ensures stable avalanche characteristics and low inductance for fast transient response.
The device meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports 150 °C maximum junction temperature, and delivers 600 W surge capability without degradation when mounted per recommended pad layout - critical for automotive-grade reliability in CAN, LIN, and sensor front-end protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 114 V / 126 V at 1 mA - Ensures predictable, repeatable avalanche initiation in both directions |
| VC @ IPPM | 137 V at 4.4 A (10/1000 μs) - Limits downstream voltage stress to safe levels during transients |
| PPPM | 600 W - Withstands high-energy surges common in automotive load-dump and inductive switching events |
| RθJA | 100 °C/W - Requires minimum 5.0 mm × 5.0 mm copper pad per terminal for thermal derating compliance |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements (HTOL, TCT, etc.) |
| Package | SMB (DO-214AA) - Low-profile surface-mount package compatible with standard SMT pick-and-place |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated, 0.220" × 0.130" footprint, 0.086" height, and no polarity marking for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional conduction path | No polarity marking; terminals interchangeable - enables single-component protection on AC or differential lines |
| Lead 1 / Lead 2 | Transient current path | Both leads serve identical roles; must be soldered to equal-area copper pads (5.0 mm × 5.0 mm) for thermal and surge performance |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports ISO 7637-2 Pulse 5a/b load-dump immunity in 12 V automotive systems without external series impedance |
| Glass-passivated junction | Ensures stable VBR over lifetime and eliminates parameter drift under humidity or thermal cycling stress |
| MSL Level 1 rating | Enables single-pass reflow at 260 °C peak without popcorn cracking or delamination |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, ADAS sensors, and body electronics |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments exposed to load-dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching ADC input or op-amp buffer. Use Value: Maintains signal integrity by limiting voltage excursion to ≤137 V during 100 V/600 W surges, preserving sensor accuracy and MCU interface safety. | Use Scenario: Safeguarding RS-485 transceiver data lines in factory automation PLCs subject to ground bounce and EFT bursts. IC Role / Device Role / Timing Role: Low-inductance TVS placed across differential pair (A/B) to clamp common-mode surges while preserving signal rise/fall times. Use Value: Clamps 4.4 A transients within 1 ns response time, preventing latch-up or damage to transceiver ICs without adding capacitance-induced jitter. |
| Telecom Power Rail Protection | Consumer USB Port ESD Suppression |
Use Scenario: Secondary overvoltage protection on +48 V DC telecom power distribution boards against lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS used in parallel with primary MOV or GDT to handle fast-rising, medium-energy transients missed by slower protectors. Use Value: Provides precise 100 V clamping threshold and 600 W capability - complements coarse primary protection with fine-grained voltage limiting. | Use Scenario: ESD protection for USB 2.0 VBUS and D+/D− lines in portable audio devices subjected to ±15 kV contact discharge. IC Role / Device Role / Timing Role: Bidirectional TVS placed between each line and ground to divert HBM/CDM energy away from USB controller PHY. Use Value: Achieves <1 μA leakage at 100 V, ensuring no impact on USB enumeration or power delivery efficiency while meeting IEC 61000-4-2 Level 4. |
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), lower PPPM (400 W), SMA package (larger RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for automotive load-dump without derating | Select when cost sensitivity outweighs surge margin and board space allows larger footprint |
| 1.5KE100CA | Higher PPPM (1500 W), axial DO-201 package, higher parasitic inductance | Not SMT-compatible; requires through-hole assembly and adds routing inductance detrimental to fast transients | Choose only for legacy through-hole designs where PCB rework is prohibitive |
Compared with SMAJ100CA and 1.5KE100CA, SM6T100CAHE3_A/H delivers optimal balance of SMT manufacturability, AEC-Q101 qualification, and 600 W surge handling in minimal SMB footprint - making it preferred for new automotive and industrial designs requiring validated reliability and compact layout.
Availability
SM6T100CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom power distribution systems requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for SM6T100CAHE3_A/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 high-reliability, automotive-qualified components.
The SM6T Series is designed specifically for surface-mount transient voltage suppression in harsh environments - targeting automotive, industrial, and telecom applications where bidirectional clamping, AEC-Q101 validation, and consistent 600 W surge performance are mandatory.
FAQ
What does the "CA" suffix indicate in SM6T100CAHE3_A/H?
The "CA" suffix in SM6T100CAHE3_A/H denotes a bidirectional configuration - meaning the device clamps symmetrically for both positive and negative transients, with identical breakdown and clamping characteristics in either polarity. This eliminates the need for polarity-aware placement and makes it ideal for AC-coupled or differential signal lines where voltage reversals occur.
Is SM6T100CAHE3_A/H suitable for automotive applications?
Yes, SM6T100CAHE3_A/H is AEC-Q101 qualified and explicitly intended for automotive use. Its qualification covers HTOL, temperature cycling, and mechanical shock testing per automotive reliability standards. The HE3 suffix confirms RoHS-compliant and AEC-Q101-qualified construction, making SM6T100CAHE3_A/H appropriate for engine control units, ADAS sensors, and body electronics.
What is the clamping voltage of SM6T100CAHE3_A/H at its rated peak pulse current?
The clamping voltage (VC) of SM6T100CAHE3_A/H is 137 V when subjected to its specified peak pulse current of 4.4 A using the standard 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that downstream circuitry will not experience voltages exceeding 137 V during such transient events - a critical design parameter for protecting 100 V-rated components.
How does the SMB (DO-214AA) package of SM6T100CAHE3_A/H compare thermally to larger packages?
The SMB package of SM6T100CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per lead. While smaller than SMA or SMC packages, this RθJA is optimized for high-density layouts - but requires strict adherence to the recommended pad layout to avoid thermal derating and ensure full 600 W pulse capability.
Does SM6T100CAHE3_A/H require polarity-specific PCB layout?
No, SM6T100CAHE3_A/H does not require polarity-specific layout because it is a bidirectional TVS diode with symmetrical electrical characteristics. There is no cathode band or polarity marking on the SMB package, and both terminals function identically - simplifying PCB design and eliminating orientation errors during automated assembly of SM6T100CAHE3_A/H.
SM6T100CAHE3_A/H 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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for SM6T100CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100CAHE3_A/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 SM6T100CAHE3_A/H reliable?
The price and inventory of SM6T100CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T100CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100CAHE3_A/H?
SM6T100CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100CAHE3_A/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 SM6T100CAHE3_A/H?
For technical support, including SM6T100CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100CAHE3_A/H requirements.
6.How does Aetrix verify that SM6T100CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T100CAHE3_A/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 SM6T100CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T100CAHE3_A/H?
All SM6T100CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100CAHE3_A/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 SM6T100CAHE3_A/H part is unused and in its original packaging.
Return procedure for SM6T100CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100CAHE3_A/H Tags
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