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Vishay General Semiconductor - Diodes Division SM15T200CA-E3/57T
- Part No.:
- SM15T200CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200CA-E3/57T.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,328
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Product details
Overview
SM15T200CA-E3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 200 V standoff voltage (VWM), 210 V minimum breakdown voltage (VBR), and clamping voltage of 274 V at 5.5 A peak pulse current. It protects I/O lines and power rails in automotive sensor units against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T200CA-E3/57T datasheet, SM15T200CA-E3/57T pinout, SM15T200CA-E3/57T application, or SM15T200CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, 200 V VWM, 274 V VC at IPPM, RoHS-compliant commercial-grade packaging, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while low-inductance SMC package supports fast transient response under 10/1000 μs surge conditions.
The device is designed for high-impedance source environments where system-level source impedance limits peak current within its 5.5 A IPPM rating. Failure mode under overstress is a short circuit, consistent with industrial and automotive safety requirements for fail-safe protection devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 200 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 24 V–48 V DC systems. |
| VBR (min) | 209 V - Minimum breakdown voltage at 1 mA test current; ensures reliable turn-on above normal operating voltage. |
| VC @ IPPM | 274 V - Clamping voltage at 5.5 A (10/1000 μs); determines maximum voltage seen by protected IC during surge. |
| PPPM | 1500 W - Peak pulse power handling (10/1000 μs); enables robust protection against lightning surges per IEC 61000-4-5. |
| IPPM | 5.5 A - Peak pulse current (10/1000 μs); sets minimum system source impedance requirement (~36 Ω) to avoid exceeding rating. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures. |
| Package | SMC (DO-214AB) - Surface-mount package with 7.75 mm × 6.22 mm footprint; compatible with automated placement and reflow soldering per J-STD-020 MSL level 1. |
Pinout & Package
SM15T200CA-E3/57T uses the SMC (DO-214AB) package - a molded, surface-mount case with two terminals and no polarity marking (bidirectional configuration). The device has no cathode/anode designation; both terminals are functionally identical for transient suppression in AC-coupled or floating signal paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient Current Input/Output | Either terminal accepts surge current; symmetrical bidirectional conduction eliminates orientation constraints during PCB layout. |
| Terminal 2 | Transient Current Input/Output | Paired with Terminal 1 to form low-inductance clamping path; enables differential-mode and common-mode surge suppression on balanced lines. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - simplifies protection of AC signals, RS-485 buses, and transformer-coupled interfaces without polarity concerns. |
| 1500 W peak pulse power | Withstands 10/1000 μs surges up to 1500 W - meets Level 4 IEC 61000-4-5 (4 kV line-to-earth) when combined with appropriate series impedance. |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage (<1.0 μA) over temperature and lifetime - critical for low-power sensor front-ends. |
| Low thermal resistance | RθJL = 15 °C/W - enables efficient heat transfer to PCB copper pads, supporting sustained operation near TJ max in compact layouts. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers in engine control modules from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential bus lines to limit surge-induced overvoltage to <274 V. Use Value: Prevents latch-up or permanent damage to transceivers during ISO 7637-2 Pulse 5a (load dump) events without adding directional complexity. | Use Scenario: Safeguarding analog input channels (4–20 mA, 0–10 V) in programmable logic controllers exposed to motor drive noise. IC Role / Device Role / Timing Role: Transient suppressor mounted at connector entry point to shunt induced spikes before reaching precision ADC front-end. Use Value: Maintains signal integrity by clamping transients to ≤274 V while contributing <1.0 μA leakage at 200 V - negligible impact on measurement accuracy. |
| Telecom Line Interface | Consumer Appliance Power Supply |
Use Scenario: Shielding Ethernet PHY magnetics and PoE injectors from ESD and lightning surges entering via RJ45 ports. IC Role / Device Role / Timing Role: Bidirectional TVS placed across each twisted pair to suppress common-mode surges while preserving signal symmetry. Use Value: Enables compliance with IEC 61000-4-5 (10/1000 μs) up to 4 kV with minimal added capacitance - avoids signal distortion on 100BASE-TX links. | Use Scenario: Protecting AC-DC converter primary-side rectifiers and secondary-side 12 V/5 V rails in smart home appliances from mains-borne switching transients. IC Role / Device Role / Timing Role: Standoff-rated TVS installed across bulk capacitor inputs to clamp surges before they propagate into downstream regulators. Use Value: Provides 200 V working margin above nominal 170 VRMS (240 VAC) peaks - prevents false triggering while ensuring robust 1500 W surge absorption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | 600 W PPPM, same VWM/VBR, SMB package (smaller footprint, higher RθJA) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select SMBJ200CA only when board space is constrained and surge threat level is limited to IEC 61000-4-4 (EFT). |
| SMCJ200CA | 1500 W PPPM, identical VWM/VBR/VC, same SMC package but higher IPPM (6.5 A) | Offers 18 % higher peak current headroom; identical mounting and layout | SMCJ200CA is a direct-layout-compatible alternative with enhanced surge margin; verify thermal derating at elevated ambient temperatures. |
Compared with SMBJ200CA and SMCJ200CA, SM15T200CA-E3/57T delivers identical 1500 W surge capability and SMC package compatibility but with tighter VBR tolerance (±5 % vs ±10 % for SMCJ), making it preferable for precision-clamp designs requiring predictable turn-on voltage.
Availability
SM15T200CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor units, industrial PLC I/O modules, and telecom line interface circuits requiring stable component supply, RoHS-compliant commercial-grade sourcing, and traceable manufacturing history.
Supply support for SM15T200CA-E3/57T 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 efficiency, and automotive qualification.
The SM15T Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where fail-safe clamping and AEC-Q101 readiness are mandatory design requirements.
FAQ
What is the clamping voltage of SM15T200CA-E3/57T at its rated peak pulse current?
The SM15T200CA-E3/57T has a maximum clamping voltage (VC) of 274 V when subjected to its rated peak pulse current of 5.5 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and defines the upper voltage limit imposed on protected circuitry during surge events. The SM15T200CA-E3/57T maintains this clamping performance symmetrically in both directions due to its bidirectional construction.
Is SM15T200CA-E3/57T qualified for automotive applications?
SM15T200CA-E3/57T itself is RoHS-compliant and commercial-grade (E3 suffix), not AEC-Q101 qualified. However, Vishay offers automotive-grade variants under the HE3 suffix (e.g., SM15T200CAHE3_A/H), which carry full AEC-Q101 qualification. The SM15T200CA-E3/57T shares identical electrical and thermal specifications with those qualified versions, differing only in traceability and test reporting - making it suitable for non-safety-critical automotive subsystems where qualification is not mandated.
What is the thermal resistance from junction to ambient for SM15T200CA-E3/57T?
The typical thermal resistance from junction to ambient (RθJA) for SM15T200CA-E3/57T is 75 °C/W, measured on a standard 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout per JEDEC standards. This value assumes no additional heatsinking; actual thermal performance improves significantly with larger copper areas or internal layer planes. The SM15T200CA-E3/57T also features RθJL = 15 °C/W, enabling effective heat transfer to PCB leads under pulsed conditions.
Does SM15T200CA-E3/57T have polarity markings on the package?
No, SM15T200CA-E3/57T does not have polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (which use a cathode band), the CA-suffixed devices are symmetrical and function identically regardless of terminal orientation. This eliminates assembly errors and simplifies layout for AC-coupled or floating signal paths - a key advantage confirmed in Vishay's SM15T Series documentation (Rev. 09-Jan-2024, p.1).
What is the maximum reverse leakage current for SM15T200CA-E3/57T at its standoff voltage?
The maximum reverse leakage current (ID) for SM15T200CA-E3/57T is 1.0 μA at its rated standoff voltage (VWM) of 200 V, measured at 25 °C. This low leakage ensures minimal power loss and signal interference in high-impedance sensing circuits. The SM15T200CA-E3/57T maintains this specification across its full operating temperature range (−65 °C to +150 °C), with leakage increasing predictably per thermal coefficient data in Vishay's Electrical Characteristics table.
SM15T200CA-E3/57T 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):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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)
SM15T200CA-E3/57T FAQ
1.How can I place an order for SM15T200CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200CA-E3/57T 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 SM15T200CA-E3/57T reliable?
The price and inventory of SM15T200CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SM15T200CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200CA-E3/57T?
SM15T200CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200CA-E3/57T 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 SM15T200CA-E3/57T?
For technical support, including SM15T200CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200CA-E3/57T requirements.
6.How does Aetrix verify that SM15T200CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T200CA-E3/57T 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 SM15T200CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SM15T200CA-E3/57T?
All SM15T200CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200CA-E3/57T, 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 SM15T200CA-E3/57T part is unused and in its original packaging.
Return procedure for SM15T200CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200CA-E3/57T Tags
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