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Vishay General Semiconductor - Diodes Division 1.5SMC11CA-E3/57T
- Part No.:
- 1.5SMC11CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC11CA-E3/57T.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,965
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Product details
Overview
1.5SMC11CA-E3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 11 V breakdown voltage (VBR min/max = 10.5–11.6 V), 9.4 V stand-off voltage (VWM), 15.6 V clamping voltage at 96.2 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC11CA-E3/57T datasheet, 1.5SMC11CA-E3/57T pinout, 1.5SMC11CA-E3/57T application, or 1.5SMC11CA-E3/57T equivalent, this part delivers verified bidirectional clamping performance, AEC-Q101 qualification readiness (via HE3/HM3 variants), RoHS-compliant matte tin terminations, and SMC (DO-214AB) package compatibility with automated placement and J-STD-002 solderability.
Technical Context
The 1.5SMC11CA-E3/57T operates as a bidirectional avalanche diode, symmetrically clamping transient voltages above ±11.6 V while maintaining <5 µA reverse leakage at 9.4 V. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 µs pulses at 0.01% duty cycle.
Thermally, it supports operation from –65 °C to +150 °C with a junction-to-ambient thermal resistance of 75 °C/W (on recommended 8.0 mm × 8.0 mm copper pads) and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V - Ensures reliable bidirectional avalanche conduction onset within tight tolerance at 1 mA test current |
| VWM | 9.4 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 15.6 V at 96.2 A - Clamped voltage during 1500 W transient event; limits downstream IC stress to safe levels |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 µs waveform enables protection against lightning-induced surges and inductive switching spikes |
| IPPM | 96.2 A - Peak pulse current capacity defines maximum surge energy the device can safely divert without failure |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 0.320" x 0.246" footprint, compatible with automated pick-and-place and reflow |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; polarity-unmarked for bidirectional operation; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts during negative transients relative to cathode reference |
| Cathode | Transient return path (bidirectional) | Connects to protected line; conducts during positive transients relative to anode reference |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Equal VBR and VC symmetry in both polarities eliminates need for polarity-aware layout in AC or floating signal lines |
| 1500 W peak pulse power | Handles high-energy transients from ESD, lightning, and inductive load switching without degradation under rated conditions |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to downstream 12 V-rated ICs |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying manufacturing logistics |
| AEC-Q101 qualification path | HE3/HM3 variants are qualified for automotive applications; this E3/57T variant shares identical die and construction |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal line and ground to clamp fast-rising transients before they reach MCU ADC or transceiver inputs. Use Value: Maintains signal integrity during 10/1000 µs surges up to 96.2 A while holding clamped voltage ≤15.6 V - within safe margin for 12 V rail-tolerant interfaces. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Parallel-connected TVS shunting transient energy away from optocoupler input and series current-limiting resistor. Use Value: Withstands repetitive 1500 W pulses at 0.01% duty cycle, enabling long-term reliability in factory automation environments with frequent switching events. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Secondary-Side Protection |
Use Scenario: Front-end protection on Ethernet PHY magnetics or DSL line drivers subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bidirectional suppression across differential pairs or between line and chassis ground to limit common-mode voltage excursion. Use Value: Symmetrical 10.5–11.6 V breakdown ensures balanced clamping on both conductors, preserving signal skew and minimizing EMI generation during clamping. |
Use Scenario: Secondary-side overvoltage clamp on 5–12 V DC output rails of wall adapters and USB PD chargers. IC Role / Device Role / Timing Role: Fast-response TVS absorbing output capacitor discharge energy during short-circuit or regulator fault conditions. Use Value: 15.6 V clamping voltage prevents downstream USB controller or battery management ICs from exceeding absolute maximum ratings during fault events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | Same VBR range (10.5–11.6 V) but lower PPPM = 600 W; SMB package (smaller footprint, higher RθJA = 85 °C/W) | Limited to lower-energy transients; unsuitable for lightning-level threats or high-current inductive spikes | Select when board space is constrained and surge threat level is defined per IEC 61000-4-5 Level 2 (0.5 kV) |
| 1.5KE11CA | Same electrical specs but axial-leaded DO-15 package; higher mounting thermal resistance and manual assembly requirement | Not suitable for automated SMT production; requires through-hole routing and wave soldering | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency |
Compared with SMBJ11CA and 1.5KE11CA, the 1.5SMC11CA-E3/57T provides optimal balance of high-energy surge handling (1500 W), SMT manufacturability, and thermal performance in compact SMC packaging - making it the preferred choice for volume automotive and industrial applications requiring AEC-Q101 alignment and J-STD-020 compliance.
Availability
1.5SMC11CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interface units, and consumer power adapter secondary-side protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for 1.5SMC11CA-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-grade qualification.
The 1.5SMC Series was developed specifically for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, repeatability, and AEC-Q101 readiness are mandatory.
FAQ
What does the "CA" suffix indicate in 1.5SMC11CA-E3/57T?
The "CA" suffix in 1.5SMC11CA-E3/57T denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping in both polarities - essential for protecting AC-coupled or floating signal lines without regard to voltage polarity. This differs from "A"-suffixed unidirectional variants that require correct cathode orientation.
Is 1.5SMC11CA-E3/57T AEC-Q101 qualified?
The 1.5SMC11CA-E3/57T itself is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under HE3 and HM3 suffixes (e.g., 1.5SMC11CAHE3_A). The E3/57T shares identical die, construction, and SMC package - enabling direct qualification path for automotive programs requiring certified parts.
What is the maximum clamping voltage of 1.5SMC11CA-E3/57T and at what current is it specified?
The maximum clamping voltage of 1.5SMC11CA-E3/57T is 15.6 V, measured at the peak pulse current (IPPM) of 96.2 A using the standardized 10/1000 µs double-exponential waveform - a key parameter for ensuring downstream components remain within safe operating voltage limits during surge events.
Can 1.5SMC11CA-E3/57T be used in place of a unidirectional TVS like 1.5SMC11A-E3/57T?
No - 1.5SMC11CA-E3/57T is strictly bidirectional and lacks polarity marking; substituting it for unidirectional 1.5SMC11A-E3/57T would compromise protection in DC-biased circuits where reverse conduction must be blocked. Use only where symmetrical clamping is required, such as AC lines or differential buses.
What PCB pad layout is recommended for optimal thermal performance of 1.5SMC11CA-E3/57T?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area per terminal for 1.5SMC11CA-E3/57T to achieve the rated 1500 W pulse power and maintain junction temperature within limits. Smaller pads increase thermal resistance and reduce surge current handling capability proportionally.
1.5SMC11CA-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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)
1.5SMC11CA-E3/57T FAQ
1.How can I place an order for 1.5SMC11CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC11CA-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 1.5SMC11CA-E3/57T reliable?
The price and inventory of 1.5SMC11CA-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 1.5SMC11CA-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC11CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC11CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC11CA-E3/57T?
1.5SMC11CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC11CA-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 1.5SMC11CA-E3/57T?
For technical support, including 1.5SMC11CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC11CA-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC11CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC11CA-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 1.5SMC11CA-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC11CA-E3/57T?
All 1.5SMC11CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC11CA-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 1.5SMC11CA-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC11CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC11CA-E3/57T Tags
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