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Vishay General Semiconductor - Diodes Division 1.5SMC11CAHE3/57T
- Part No.:
- 1.5SMC11CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC11CAHE3/57T.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,686
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Product details
Overview
1.5SMC11CAHE3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features a 9.4 V stand-off voltage (VWM), 10.5–11.6 V breakdown voltage (VBR) at 1 mA, 15.6 V maximum clamping voltage (VC) at 96.2 A peak pulse current (IPPM), and 1500 W peak pulse power capability with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the 1.5SMC11CAHE3/57T datasheet, 1.5SMC11CAHE3/57T pinout, 1.5SMC11CAHE3/57T application, or 1.5SMC11CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.43), thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR min/max (10.5–11.6 V), VWM (9.4 V), and VC (15.6 V) values across reverse and forward directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<5.0 μA at VWM), while the SMC package supports high surge current handling (IPPM = 96.2 A) without polarity marking.
The device meets MSL Level 1 per J-STD-020, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and is qualified to AEC-Q101 for automotive use. Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C under repetitive 0.01% duty cycle pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 9.4 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 10.5–11.6 V at 1 mA - Tight tolerance ensures predictable turn-on during transients; bidirectional symmetry confirmed |
| VC (Clamping) | 15.6 V at IPPM = 96.2 A - Limits downstream voltage stress during 10/1000 μs surge; clamping ratio = 1.43 |
| PPPM | 1500 W - Peak transient energy absorption capacity with standard 10/1000 μs waveform at 0.01% duty cycle |
| ID (Leakage) | <5.0 μA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max. | +150 °C - Enables deployment in under-hood automotive and industrial environments without derating |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on recommended 8.0 mm × 8.0 mm copper pads |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking. Case dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); cathode band absent per bidirectional design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One terminal of symmetrical PN junction; conducts during positive overvoltage events |
| Anode / Cathode (shared) | Transient current return (negative polarity) | Same physical terminal functions as cathode during negative surges due to bidirectional structure |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events without degradation |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage under temperature/humidity stress |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without preconditioning |
| Low clamping ratio (VC/VBR) | 1.43 - Minimizes protected circuit voltage excursion during fast transients |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector or IC input pins to shunt surge energy before it reaches sensitive silicon. Use Value: Prevents latch-up or permanent damage in AEC-Q100 Grade 2 ICs by limiting transient voltage to ≤15.6 V during 100 A surges. |
Use Scenario: Safeguarding PLC digital input modules and RS-485 transceivers against induced lightning surges and inductive switching spikes in factory automation. IC Role / Device Role / Timing Role: Primary front-end protection device mounted on PCB edge connectors or terminal blocks to absorb >1 kV transients. Use Value: Maintains system uptime by eliminating field failures caused by 1500 W-level surges on 24 V DC control lines. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Secondary-side transient suppression on 12 V/19 V DC outputs of wall adapters and laptop chargers exposed to user-handling ESD. IC Role / Device Role / Timing Role: Fast-response voltage clamp parallel to output capacitor, activated within <1 ns of overvoltage onset. Use Value: Complies with IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) without requiring additional series impedance. |
Use Scenario: Protecting Ethernet PHYs and DSL line drivers from longitudinal surges entering via RJ-45 jacks in VoIP gateways and base stations. IC Role / Device Role / Timing Role: Symmetrical differential-mode suppressor across twisted-pair lines, leveraging bidirectional conduction. Use Value: Enables robust 10/100/1000BASE-T operation in outdoor cabinets by clamping common-mode surges to ≤15.6 V per line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | Lower PPPM (600 W), same VWM/VBR/VC, SMB package (smaller footprint, higher RθJA = 85 °C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a (load dump) | Select when board space is constrained and surge requirements are ≤600 W |
| 1.5KE11CA | Through-hole DO-201 package, identical electrical specs but slower response due to higher parasitic inductance | Not compatible with automated SMT assembly; requires wave solder or hand-soldering | Choose only for legacy through-hole designs or prototyping where rework flexibility is prioritized |
Compared with SMBJ11CA and 1.5KE11CA, the 1.5SMC11CAHE3/57T delivers superior surge robustness in a RoHS-compliant, AEC-Q101-qualified SMT package - making it optimal for volume automotive and industrial production where reliability, manufacturability, and 1500 W pulse handling are mandatory.
Availability
1.5SMC11CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line card surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC11CAHE3/57T 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, efficiency, and automotive-grade qualification.
The 1.5SMC Series is engineered for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and 1500 W surge immunity are critical design requirements.
FAQ
What does the "CA" suffix indicate in 1.5SMC11CAHE3/57T?
The "CA" suffix in 1.5SMC11CAHE3/57T denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics for positive and negative voltage excursions. This eliminates the need for polarity-aware layout and simplifies protection of AC-coupled or differential signal lines.
Is 1.5SMC11CAHE3/57T suitable for automotive applications?
Yes, 1.5SMC11CAHE3/57T is AEC-Q101 qualified (indicated by the "HE3" suffix) and specifically designed for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. It meets stringent requirements for temperature cycling, humidity resistance, and surge robustness required in vehicle environments.
What is the maximum clamping voltage of 1.5SMC11CAHE3/57T under surge conditions?
The maximum clamping voltage (VC) of 1.5SMC11CAHE3/57T is 15.6 V, measured at its peak pulse current (IPPM) of 96.2 A using the standard 10/1000 μs waveform. This value ensures downstream components see limited overvoltage stress during high-energy transients.
How does the SMC package of 1.5SMC11CAHE3/57T compare to SMA or SMB in terms of power handling?
The SMC (DO-214AB) package used by 1.5SMC11CAHE3/57T supports higher thermal dissipation than SMA (DO-214AC) or SMB (DO-214AA), enabling its 1500 W peak pulse rating. With RθJA = 75 °C/W on 8.0 mm × 8.0 mm pads, it outperforms SMBJ-series parts (RθJA ≈ 85 °C/W) in sustained surge scenarios.
Does 1.5SMC11CAHE3/57T require special PCB layout considerations?
Yes - for optimal performance, 1.5SMC11CAHE3/57T must be mounted on minimum 8.0 mm × 8.0 mm copper pads per terminal to achieve rated PPPM and thermal resistance. Short, wide traces to protected nodes minimize inductance, and placement adjacent to connectors or IC inputs reduces let-through voltage during fast transients.
1.5SMC11CAHE3/57T 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC11CAHE3/57T FAQ
1.How can I place an order for 1.5SMC11CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC11CAHE3/57T 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 1.5SMC11CAHE3/57T reliable?
The price and inventory of 1.5SMC11CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC11CAHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC11CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC11CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC11CAHE3/57T?
1.5SMC11CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC11CAHE3/57T 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 1.5SMC11CAHE3/57T?
For technical support, including 1.5SMC11CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC11CAHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC11CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC11CAHE3/57T 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 1.5SMC11CAHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC11CAHE3/57T?
All 1.5SMC11CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC11CAHE3/57T, 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 1.5SMC11CAHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC11CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC11CAHE3/57T Tags
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