My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM15T6V8CA-M3/57T
- Part No.:
- SM15T6V8CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T6V8CA-M3/57T.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,615
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM15T6V8CA-M3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 6.8 V breakdown voltage (min), 5.8 V stand-off voltage, and clamping voltage of 10.5 V at 143 A peak pulse current. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T6V8CA-M3/57T datasheet, SM15T6V8CA-M3/57T pinout, SM15T6V8CA-M3/57T application, or SM15T6V8CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.55), halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness via HM3 variant.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress, and its low-inductance SMC package supports fast transient response (<1 ns typical turn-on time).
The device is designed for high-impedance source environments where peak current remains within its 143 A IPPM rating under 10/1000 μs waveform. Failure mode under overstress is short-circuit, aligning with system-level fault containment requirements in automotive and industrial safety architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines reliable conduction onset threshold for transient clamping |
| VWM | 5.8 V - maximum continuous reverse voltage before leakage exceeds 1000 μA |
| VC @ IPPM | 10.5 V at 143 A (10/1000 μs) - actual clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - peak surge energy handling capacity without degradation under standardized waveform |
| TJ max | +150 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height for automated assembly |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix), MSL Level 1, JESD201 Class 2 whisker resistance |
Pinout & Package
SM15T6V8CA-M3/57T uses the SMC (DO-214AB) package - a molded plastic case with two coplanar matte tin-plated leads, no polarity marking (bidirectional), and thermal pad layout optimized for 8.0 mm × 8.0 mm copper areas per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (either polarity) | One of two symmetrical terminals; accepts surge current regardless of voltage polarity |
| Cathode | Transient current exit point (either polarity) | Second symmetrical terminal; completes low-impedance path to ground or rail during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware PCB layout |
| 1500 W peak pulse power | Withstands lightning-induced surges (IEC 61000-4-5 Level 4) on industrial I/O lines without derating |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current over temperature and life cycle |
| Low clamping ratio (VC/VBR) | ≈1.55 - minimizes voltage overshoot during clamping, critical for protecting 5 V logic and analog front-ends |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak - compatible with standard SMT assembly processes |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground, responding within nanoseconds to overvoltage events. Use Value: Maintains signal integrity below 10.5 V clamping level while surviving repeated 143 A transients - meets AEC-Q101 stress test requirements when used in HM3 variant. | Use Scenario: Safeguarding digital input cards in programmable logic controllers against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V DC input lines, shunting surge energy before it reaches optocoupler or microcontroller input stage. Use Value: 1500 W rating handles worst-case 10/1000 μs transients common in factory automation, with low leakage (<1000 μA at 5.8 V) preserving input threshold accuracy. |
| Telecom Line Interface Protection | Consumer Power Adapter ESD Suppression |
Use Scenario: Shielding Ethernet PHY interface pins and PoE detection circuitry from ESD and fast transients per IEC 61000-4-2/4-4. IC Role / Device Role / Timing Role: Secondary protection device downstream of gas discharge tube (GDT), providing low-clamp backup for sub-microsecond events. Use Value: 10.5 V clamping ensures PHY ICs rated for 3.3 V or 5 V I/O remain within absolute maximum ratings during combined ESD + surge events. | Use Scenario: Adding robustness to USB-C and barrel-jack input stages in AC/DC adapters against user-handling ESD and accidental AC line transients. IC Role / Device Role / Timing Role: Primary transient suppressor on DC input rail, placed before input capacitor and controller IC to limit voltage excursion during plug-in surges. Use Value: Halogen-free M3 construction supports environmental compliance in global consumer markets, while 5.8 V VWM allows safe operation with 5 V nominal inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8CA | Lower peak power (400 W), same SMC package, identical VBR/VWM range but higher VC (11.5 V @ 35.2 A) | Not suitable for lightning-level threats; limited to board-level ESD and low-energy switching noise | Select SMAJ6.8CA only when system-level threat level is ≤ IEC 61000-4-5 Level 2 and space constraints require smaller footprint alternatives |
| SMCJ6.8CA | Same 1500 W rating and SMC package, but higher VBR (6.45–7.14 V vs. 6.8–7.5 V), slightly higher VC (11.2 V @ 134 A) | Marginally lower clamping performance; requires verification against 5 V rail margin in tight-voltage designs | SMCJ6.8CA offers broader manufacturer availability but demands layout review due to 0.7 V higher clamping voltage than SM15T6V8CA-M3/57T |
Compared with SMAJ6.8CA and SMCJ6.8CA, SM15T6V8CA-M3/57T delivers superior clamping efficiency (10.5 V vs. ≥11.2 V) at full 1500 W rating, making it preferred for automotive and industrial systems where voltage margin below 5 V logic thresholds is critical.
Availability
SM15T6V8CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface circuits requiring stable component supply with halogen-free, RoHS-compliant construction.
Supply support for SM15T6V8CA-M3/57T 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, power handling, and automotive-grade qualification.
The SM15T Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where failure-mode predictability and AEC-Q101 readiness are mandatory design requirements.
FAQ
What does the "CA" suffix indicate in SM15T6V8CA-M3/57T?
The "CA" suffix denotes a bidirectional configuration - meaning SM15T6V8CA-M3/57T provides symmetrical transient suppression in both voltage polarities, with identical breakdown and clamping characteristics in forward and reverse directions. This eliminates polarity marking on the device and simplifies PCB layout versus unidirectional variants like SM15T6V8A-M3/57T.
Is SM15T6V8CA-M3/57T qualified to AEC-Q101?
SM15T6V8CA-M3/57T itself is commercial-grade (M3 suffix), but the SM15T family includes AEC-Q101 qualified versions under HM3 suffix (e.g., SM15T6V8CAHM3_A/H). The M3 variant shares identical electrical specs and package, enabling direct qualification path - no redesign needed when upgrading to automotive grade.
What is the maximum clamping voltage of SM15T6V8CA-M3/57T under surge conditions?
The maximum clamping voltage of SM15T6V8CA-M3/57T is 10.5 V when subjected to a 10/1000 μs waveform at its peak pulse current of 143 A. This value is measured per Fig. 1 in Vishay document 88380 and represents the upper bound voltage seen by protected circuitry during worst-case transient events.
How does the M3 suffix affect the environmental compliance of SM15T6V8CA-M3/57T?
The M3 suffix indicates SM15T6V8CA-M3/57T is halogen-free and RoHS-compliant per EU Directive 2011/65/EU, with material composition verified to meet JEDEC J-STD-020 moisture sensitivity Level 1 and JESD201 Class 2 whisker resistance requirements - essential for lead-free reflow and long-term reliability in consumer and industrial products.
Can SM15T6V8CA-M3/57T be used in place of a unidirectional TVS like SM15T6V8A-M3/57T?
Yes, SM15T6V8CA-M3/57T can replace unidirectional SM15T6V8A-M3/57T in most applications, provided the circuit does not rely on DC blocking functionality. Since SM15T6V8CA-M3/57T clamps in both directions, it introduces no polarity constraint - but also provides no DC isolation, so verify that reverse-bias leakage and steady-state conduction paths remain acceptable in the target design.
SM15T6V8CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SM15T6V8CA-M3/57T FAQ
1.How can I place an order for SM15T6V8CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T6V8CA-M3/57T 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 SM15T6V8CA-M3/57T reliable?
The price and inventory of SM15T6V8CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T6V8CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T6V8CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T6V8CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T6V8CA-M3/57T?
SM15T6V8CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T6V8CA-M3/57T 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 SM15T6V8CA-M3/57T?
For technical support, including SM15T6V8CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T6V8CA-M3/57T requirements.
6.How does Aetrix verify that SM15T6V8CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T6V8CA-M3/57T 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 SM15T6V8CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T6V8CA-M3/57T?
All SM15T6V8CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T6V8CA-M3/57T, 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 SM15T6V8CA-M3/57T part is unused and in its original packaging.
Return procedure for SM15T6V8CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T6V8CA-M3/57T 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
