My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T100CA-E3/5B
;;2.jpg)
- Part No.:
- SM6T100CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100CA-E3/5B.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,020
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T100CA-E3/5B 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 protects signal lines and power rails in automotive sensor units and industrial control interfaces against ESD and inductive switching transients.
For engineers reviewing the SM6T100CA-E3/5B datasheet, SM6T100CA-E3/5B pinout, SM6T100CA-E3/5B application, or SM6T100CA-E3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (1.37×VWM), AEC-Q101 qualification eligibility, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
The SM6T100CA-E3/5B operates as a bidirectional avalanche diode with symmetrical breakdown behavior in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and robust surge handling under repetitive transients.
Designed for surface-mount use in space-constrained environments, it delivers 600 W peak pulse power dissipation per 10/1000 μs waveform while maintaining low inductance and meeting J-STD-020 MSL Level 1 (260 °C reflow peak). The device is RoHS-compliant and supports automotive-grade variants via HE3/HM3 suffixes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 95.0 / 105 V - guaranteed breakdown voltage range at 1 mA test current, ensuring predictable turn-on |
| VC @ IPPM | 137 V at 4.4 A - clamping voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 600 W - peak transient power absorption capability, validated per IEC 61000-4-5 |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, defining derating above 25 °C |
| TJ max. | +150 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| ID @ VWM | <1 μA - reverse leakage at rated standoff, minimizing standby power loss in high-impedance circuits |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. No polarity marking - bidirectional functionality eliminates cathode/anode distinction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; voltage clamping occurs across terminals regardless of polarity |
| Case (body) | Thermal and mechanical interface | Non-electrical; provides mechanical anchoring and contributes to thermal dissipation via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC, differential, 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) in properly laid-out PCBs |
| Low clamping ratio (1.37×VWM) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity precautions or baking |
| AEC-Q101 qualification path | HE3/HM3 variants support automotive applications requiring reliability validation per stress-test standards |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and sensor analog outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching transceiver IC. Use Value: Maintains signal integrity by limiting transient voltage to ≤137 V while surviving repeated 600 W pulses per ISO 7637-2 Pulse 5a. | Use Scenario: Safeguarding RS-485/CAN FD physical layer receivers against ESD (IEC 61000-4-2 ±15 kV) and fast transients in factory automation PLCs. IC Role / Device Role / Timing Role: Low-inductance TVS mounted adjacent to bus connector to minimize loop area and preserve signal edge integrity. Use Value: Clamps sub-100 ns ESD events within 1 ns response time, preventing latch-up or damage to isolated transceivers. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression on 12–24 V DC outputs of wall adapters and PoE injectors exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output filter to absorb residual transients escaping primary-side protection. Use Value: Provides 100 V standoff with 137 V clamping, allowing safe operation of downstream 12 V logic while absorbing 600 W surges. | Use Scenario: Primary protection for Ethernet PHYs and DSL line drivers subjected to induced surges from nearby AC mains or telecom cables. IC Role / Device Role / Timing Role: First-stage clamping device on line card edge, coordinated with gas discharge tube (GDT) upstream for staged protection. Use Value: Fast response and symmetrical clamping ensure balanced protection of differential pairs without skew or common-mode injection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Same SMB package, identical VWM (100 V) and VC (137 V), but rated for 600 W with tighter VBR tolerance (95–105 V vs. 95–105 V); same RθJA | No functional difference in circuit design; identical layout and thermal requirements | Select SMBJ100CA if dual-sourcing from different manufacturers is required without layout change |
| P6SMB100CA | Same electrical specs and SMB package, but legacy naming; identical 600 W rating, 137 V clamping, and 100 V VWM | Identical use cases; widely stocked alternative with identical footprint and performance | Choose P6SMB100CA for extended supply chain redundancy where Vishay SM6T-series allocation is constrained |
Compared with SMBJ100CA and P6SMB100CA, the SM6T100CA-E3/5B offers identical clamping performance and thermal behavior but distinguishes itself through Vishay's AEC-Q101-qualified HE3 variant path and documented MSL Level 1 compliance-critical for automotive production ramp and high-reliability industrial programs.
Availability
SM6T100CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN bus nodes, and telecom line card designs requiring stable component supply, RoHS compliance, and long-term manufacturability assurance.
Supply support for SM6T100CA-E3/5B 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 robust transient suppression in harsh environments-designed to meet stringent automotive (AEC-Q101), industrial, and telecom surge immunity standards while supporting high-volume SMT manufacturing.
FAQ
What is the clamping voltage of the SM6T100CA-E3/5B under a 10/1000 μs surge?
The SM6T100CA-E3/5B has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 4.4 A. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The SM6T100CA-E3/5B maintains this clamping performance consistently across its operational temperature range.
Is the SM6T100CA-E3/5B suitable for automotive applications?
Yes-the SM6T100CA-E3/5B is part of the AEC-Q101-qualified SM6T family; the "HE3" and "HM3" variants (e.g., SM6T100CAHE3_B/I) are explicitly certified for automotive use. While the SM6T100CA-E3/5B itself is commercial-grade, its design, process, and test flow align with automotive requirements, and it shares identical electrical and thermal characteristics with qualified versions. Engineers deploying the SM6T100CA-E3/5B in automotive prototypes should transition to HE3/HM3 suffixes for production.
Does the SM6T100CA-E3/5B have polarity markings on the package?
No-the SM6T100CA-E3/5B is a bidirectional TVS diode and carries no polarity marking (e.g., cathode band) on the SMB (DO-214AA) case. Its symmetrical construction allows installation in either orientation, simplifying layout and eliminating risk of reverse placement. This contrasts with unidirectional variants like SM6T100A, which feature a visible cathode band.
What is the thermal resistance of the SM6T100CA-E3/5B, and how does it affect layout?
The SM6T100CA-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads per terminal. This value assumes no additional heatsinking; designers must derate power dissipation linearly above 25 °C ambient using Fig. 2 in the datasheet. To maintain reliability, ensure adequate copper area and avoid thermal isolation-SM6T100CA-E3/5B performance degrades rapidly if pad size falls below specification.
Can the SM6T100CA-E3/5B replace a unidirectional TVS like SM6T100A in an existing design?
No-direct replacement is not recommended without circuit review. Although both share VWM = 100 V and similar clamping, the SM6T100CA-E3/5B is bidirectional and lacks polarity marking, whereas SM6T100A is unidirectional with defined cathode orientation. Substituting without verifying signal path symmetry may cause unintended conduction or failure to clamp in DC-biased circuits. Always validate clamping behavior under actual operating bias conditions before interchanging SM6T100CA-E3/5B and SM6T100A.
SM6T100CA-E3/5B 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T100CA-E3/5B FAQ
1.How can I place an order for SM6T100CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100CA-E3/5B 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 SM6T100CA-E3/5B reliable?
The price and inventory of SM6T100CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SM6T100CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100CA-E3/5B?
SM6T100CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100CA-E3/5B 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 SM6T100CA-E3/5B?
For technical support, including SM6T100CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100CA-E3/5B requirements.
6.How does Aetrix verify that SM6T100CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T100CA-E3/5B 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 SM6T100CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SM6T100CA-E3/5B?
All SM6T100CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100CA-E3/5B, 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 SM6T100CA-E3/5B part is unused and in its original packaging.
Return procedure for SM6T100CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100CA-E3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
