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Vishay General Semiconductor - Diodes Division 1.5SMC16CA-E3/9AT
- Part No.:
- 1.5SMC16CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16CA-E3/9AT.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,124
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Product details
Overview
1.5SMC16CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 16 V standoff voltage (VWM), 18.2 V minimum breakdown voltage (VBR), 22.5 V maximum clamping voltage (VC) at 66.7 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 modules.
For engineers reviewing the 1.5SMC16CA-E3/9AT datasheet, 1.5SMC16CA-E3/9AT pinout, 1.5SMC16CA-E3/9AT application, or 1.5SMC16CA-E3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (VC/VBR ≈ 1.24), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR, diverting surge current away from downstream circuitry. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns).
The 1.5SMC16CA-E3/9AT is rated for bidirectional operation - identical electrical behavior in both polarities - with symmetrical breakdown (18.2–20.1 V) and clamping (22.5 V max) across terminals. Thermal resistance is 75 °C/W (junction-to-ambient, mounted per recommended pad layout), supporting reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - maximum continuous reverse voltage before leakage exceeds 1 µA; defines safe operating DC rail margin |
| VBR (Breakdown Voltage) | 18.2–20.1 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 22.5 V at 66.7 A - maximum voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs |
| PPPM (Peak Pulse Power) | 1500 W - surge energy handling capacity with standard 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 compliance |
| IPPM (Peak Pulse Current) | 66.7 A - maximum non-repetitive surge current the device can safely clamp without degradation |
| TJ max. | 150 °C - maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures |
| Package | SMC (DO-214AB) - surface-mount package with 7.75 mm × 6.22 mm footprint and 2.62 mm height; optimized for automated pick-and-place |
Pinout & Package
SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Bidirectional construction means no polarity marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path terminal | Either terminal serves as input/output for transient energy; no cathode band marking required |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables protection against severe lightning-induced surges (IEC 61000-4-5) without derating in compact SMC footprint |
| Low clamping ratio (VC/VBR ≤ 1.24) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to 3.3 V/5 V logic interfaces |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without pre-baking; eliminates production delays in high-volume SMT lines |
| AEC-Q101 qualified option available | RoHS-compliant E3 suffix meets automotive qualification requirements when ordered as HE3 variant (not applicable to -E3/9AT) |
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics over lifetime and temperature; critical for field-reliability in harsh environments |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role: Bidirectional shunt TVS placed across supply rail or signal line to clamp transients before they reach sensitive ASICs. Use Value: Maintains signal integrity during 100 V/50 ms load dump events while limiting clamped voltage to ≤22.5 V - below absolute maximum ratings of 5 V interface ICs. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role: Primary overvoltage clamp on field-side input circuitry, working in concert with series current-limiting resistor and optocoupler. Use Value: Absorbs 1500 W surge energy without failure, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements for industrial control equipment. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary protection on Ethernet PHY power rails and RS-485 data lines in network edge devices subjected to induced lightning surges. IC Role / Device Role: Fast-response bidirectional clamp positioned after primary gas discharge tube (GDT) to handle residual energy and high-frequency components. Use Value: Sub-1 ns response time captures fast-rising transients missed by slower GDTs, while 22.5 V clamping prevents damage to 3.3 V PHY transceivers. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role: Across-motor terminals or DC bus rails to clamp inductive kickback during MOSFET switching transitions. Use Value: Withstands repetitive 66.7 A surges at 0.01% duty cycle, extending motor driver lifespan and eliminating false resets caused by voltage overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA (Bourns) | Same VWM (16 V), lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 85 °C/W) | Lower surge rating limits use to light-duty consumer electronics; not recommended for automotive or industrial surge testing | Select only if space-constrained and surge threat level is limited to IEC 61000-4-2 ESD or low-energy EFT. |
| 1.5KE16CA (ON Semiconductor) | Same VWM/VC, identical 1500 W rating, but DO-201AE axial-leaded package - incompatible with SMT assembly | Requires through-hole rework or adapter board; unsuitable for automated high-volume production | Choose only for prototyping or legacy repair where SMT is unavailable; avoid for new designs targeting production scalability. |
Compared with SMBJ16CA and 1.5KE16CA, the 1.5SMC16CA-E3/9AT delivers full 1500 W surge capability in an SMT-optimized SMC package with industry-leading thermal performance (RθJA = 75 °C/W) and MSL Level 1 compatibility - making it the preferred choice for automotive-grade and industrial control applications requiring production-ready reliability.
Availability
1.5SMC16CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, telecom line cards, and consumer appliance motor drives requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for 1.5SMC16CA-E3/9AT 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 application-specific optimization.
The 1.5SMC Series was engineered for high-power, surface-mount transient suppression in space-constrained, high-reliability systems - balancing surge robustness, thermal efficiency, and automated manufacturability across automotive, industrial, and communications markets.
FAQ
What is the clamping voltage of the 1.5SMC16CA-E3/9AT under a 10/1000 µs surge?
The 1.5SMC16CA-E3/9AT has a maximum clamping voltage (VC) of 22.5 V at 66.7 A peak pulse current with a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and reflects worst-case voltage seen by protected circuitry during standardized surge testing - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the 1.5SMC16CA-E3/9AT unidirectional or bidirectional?
The 1.5SMC16CA-E3/9AT is a bidirectional transient voltage suppressor, indicated by the "CA" suffix. Its electrical characteristics - including VBR, VC, and leakage - are identical in both polarities, with no cathode marking on the SMC package. This makes it ideal for protecting AC-coupled signals or floating DC rails where polarity reversal may occur.
Does the 1.5SMC16CA-E3/9AT meet automotive qualification standards?
The 1.5SMC16CA-E3/9AT itself is RoHS-compliant and commercial-grade (E3 suffix), but is not AEC-Q101 qualified. For automotive applications, Vishay offers the 1.5SMC16CAHE3 variant (with HE3 suffix), which adds AEC-Q101 qualification while retaining identical electrical specs and SMC packaging - the -E3/9AT is intended for industrial and telecom use.
What is the thermal resistance of the 1.5SMC16CA-E3/9AT?
The 1.5SMC16CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 8.0 mm × 8.0 mm copper pads per terminal, as specified in Vishay document 88303. This value assumes natural convection and is essential for calculating safe power derating above 25 °C ambient temperature.
Can the 1.5SMC16CA-E3/9AT be used in place of a unidirectional TVS like 1.5SMC16A-E3/9AT?
No - the 1.5SMC16CA-E3/9AT is bidirectional and lacks polarity marking, whereas the 1.5SMC16A-E3/9AT is unidirectional with a cathode band. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC signals or floating rails, while unidirectional parts are required where DC bias polarity is fixed and reverse leakage must be minimized during normal operation.
1.5SMC16CA-E3/9AT 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- 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)
1.5SMC16CA-E3/9AT FAQ
1.How can I place an order for 1.5SMC16CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16CA-E3/9AT 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 1.5SMC16CA-E3/9AT reliable?
The price and inventory of 1.5SMC16CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC16CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC16CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16CA-E3/9AT?
1.5SMC16CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16CA-E3/9AT 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 1.5SMC16CA-E3/9AT?
For technical support, including 1.5SMC16CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16CA-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC16CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16CA-E3/9AT 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 1.5SMC16CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC16CA-E3/9AT?
All 1.5SMC16CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16CA-E3/9AT, 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 1.5SMC16CA-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC16CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC16CA-E3/9AT Tags
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