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Vishay General Semiconductor - Diodes Division 1.5SMC16A-E3/9AT
- Part No.:
- 1.5SMC16A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC16A-E3/9AT.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC SMC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
1.5SMC16A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features a 13.6 V stand-off voltage (VWM), 15.2–16.8 V breakdown voltage (VBR) at 1 mA, 22.5 V maximum clamping voltage (VC) at 66.7 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 µs waveform - ideal for safeguarding MOSFETs and signal lines in automotive sensor interfaces.
For engineers reviewing the 1.5SMC16A-E3/9AT datasheet, 1.5SMC16A-E3/9AT pinout, 1.5SMC16A-E3/9AT application, or 1.5SMC16A-E3/9AT equivalent, this device delivers verified clamping performance, RoHS-compliant commercial-grade construction, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification readiness - critical for ESD and lightning transient suppression in industrial and automotive electronics.
Technical Context
The 1.5SMC16A-E3/9AT operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for stable reverse-biased clamping. Its 10/1000 µs surge response achieves 22.5 V clamping at 66.7 A, with low incremental surge resistance ensuring minimal voltage overshoot during fast transients.
Thermal design is supported by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = 150 °C. The cathode-band polarity marking and matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.6 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line bias margin. |
| VBR (min/max) | 15.2 V / 16.8 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on under surge conditions. |
| VC @ IPPM | 22.5 V at 66.7 A - Clamped voltage during 10/1000 µs transient; directly limits stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capacity; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 66.7 A - Peak pulse current rating; derived from 1500 W / 22.5 V, validated per Fig. 3 waveform. |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 0.305" × 0.320" footprint; compatible with automated placement. |
Pinout & Package
SMC (DO-214AB) package with two terminals: anode and cathode. Cathode identified by a visible band on the body. Designed for PCB mounting on 8.0 mm × 8.0 mm copper pads per terminal per datasheet Fig. 2 derating guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side reference. | Provides return path during clamping; must be routed with low-inductance trace to minimize VL = L·di/dt overshoot. |
| Cathode | Current exit point in reverse bias; connected to protected line (e.g., CAN_H, USB_VBUS). | Band-marked terminal; reverse-biased connection enables rapid avalanche conduction when VLINE exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables single-device protection against severe lightning-induced transients per IEC 61000-4-5. |
| 22.5 V clamping voltage at 66.7 A | Keeps protected ICs (e.g., microcontrollers, transceivers) below absolute maximum ratings during surge events. |
| Glass-passivated chip junction | Ensures long-term reliability and stable VBR drift < ±5 % over 1000 hrs at TJ = 125 °C. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow without preconditioning; eliminates moisture-related popcorning risk. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets EU Directive 2011/65/EU; suitable for consumer, industrial, and automotive non-safety-critical systems. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in 12 V vehicle subsystems. IC Role / Device Role: Unidirectional TVS placed between signal line and chassis ground to clamp negative-going spikes and positive surges above VWM. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADC front-ends by limiting transient voltage to ≤22.5 V. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role: Standoff-clamp TVS mounted across input terminals to shunt >1 kV transients before reaching optocoupler input stage. Use Value: Eliminates need for external series impedance or RC snubbers while maintaining fast response (<1 ns) and low leakage (<1 µA at 13.6 V). |
| USB Power Line Surge Suppression | DC Motor Driver Gate Protection |
|
Use Scenario: Adding secondary-level surge immunity to USB VBUS lines in industrial docking stations subject to hot-plug and ESD events. IC Role / Device Role: Unidirectional TVS connected anode-to-ground, cathode-to-VBUS to suppress positive transients while allowing normal 5 V operation. Use Value: Complements primary ESD protection (e.g., 0201 polymer TVS) with higher energy absorption (1500 W vs. 100 W), extending system-level surge withstand to ≥10 A (8/20 µs). |
Use Scenario: Protecting high-side N-channel MOSFET gates in H-bridge motor drivers from Miller-induced voltage spikes during fast switching. IC Role / Device Role: TVS placed between gate and source to clamp dv/dt-induced overshoot exceeding gate oxide rating (±20 V). Use Value: Limits gate-source voltage to ≤22.5 V during 100 ns transients, preventing irreversible gate rupture and ensuring 100 k-cycle reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/52T | Same VWM (13.6 V) and VC (22.5 V), but lower PPPM = 600 W in smaller SMB (DO-214AA) package. | Lower surge capacity suits space-constrained consumer ports; insufficient for automotive load-dump per ISO 7637-2 Pulse 5a. | Select when board area is critical and peak surge energy ≤600 W; verify thermal derating for repeated pulses. |
| 1.5KE16A | Through-hole TO-204AE (DO-41); identical electrical specs but larger footprint and manual assembly requirement. | Preferred for legacy industrial designs requiring serviceability or high-reliability hand-soldered joints. | Choose for prototyping or low-volume production where automated SMT is unavailable; expect +30 % board area usage. |
Compared with SMBJ16A-E3/52T and 1.5KE16A, the 1.5SMC16A-E3/9AT uniquely balances 1500 W surge capability, SMC's automated placement compatibility, and commercial-grade RoHS compliance - making it optimal for volume automotive and industrial PCBs requiring both high energy handling and manufacturing scalability.
Availability
1.5SMC16A-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, USB power delivery systems, and motor driver gate protection requiring stable component supply and full traceability.
Supply support for 1.5SMC16A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed to deliver high-power, surface-mount TVS solutions for harsh-environment electronics - targeting automotive, industrial, and telecom applications where compact size, repeatable clamping, and AEC-Q101 readiness are essential.
FAQ
What is the clamping voltage of the 1.5SMC16A-E3/9AT under maximum surge conditions?
The 1.5SMC16A-E3/9AT exhibits a maximum clamping voltage (VC) of 22.5 V when subjected to its rated peak pulse current of 66.7 A using the standardized 10/1000 µs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay document 88303 and represents the upper limit of voltage seen by protected circuitry during worst-case transient events. The 1.5SMC16A-E3/9AT maintains this clamping performance across its specified operating temperature range.
Is the 1.5SMC16A-E3/9AT suitable for automotive applications?
Yes - the 1.5SMC16A-E3/9AT is RoHS-compliant and built to Vishay's commercial-grade specifications, with AEC-Q101-qualified variants available (e.g., 1.5SMC16AHE3_A). While the -E3/9AT suffix itself is not AEC-Q101 certified, its construction (glass-passivated junction, MSL Level 1, 150 °C TJ max) meets core requirements for under-hood and cabin electronics. Engineers should specify HE3 suffix versions for production automotive use; the 1.5SMC16A-E3/9AT serves as a drop-in evaluation and industrial-grade alternative.
How does the 1.5SMC16A-E3/9AT differ from bidirectional TVS diodes like 1.5SMC16CA?
The 1.5SMC16A-E3/9AT is unidirectional and features a cathode band for polarity-sensitive placement, enabling asymmetric clamping only on positive transients relative to ground. In contrast, 1.5SMC16CA is bidirectional and symmetrical - clamping both positive and negative excursions above ±13.6 V. The 1.5SMC16A-E3/9AT offers lower leakage (<1 µA at VWM) and is preferred for DC-biased lines (e.g., power rails, gate drives), whereas the CA version suits AC-coupled or floating signal paths like RS-485.
What is the thermal resistance of the 1.5SMC16A-E3/9AT, and how does it affect layout?
The 1.5SMC16A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads (RθJL) of 15 °C/W, per Vishay document 88303 page 3. To maintain TJ ≤ 150 °C under repetitive surges, PCB layout must use minimum 8.0 mm × 8.0 mm copper pads per terminal (as specified in Fig. 2), with internal ground planes and thermal vias recommended for high-duty-cycle applications. The 1.5SMC16A-E3/9AT's thermal profile directly dictates pad sizing and copper weight in production designs.
Can the 1.5SMC16A-E3/9AT replace older DO-15 or DO-201 packages in existing designs?
No - the 1.5SMC16A-E3/9AT uses the SMC (DO-214AB) surface-mount package, which is physically incompatible with through-hole DO-15 or DO-201 footprints. Direct replacement would require PCB redesign to accommodate the 0.305" × 0.320" SMC outline and rework of solder mask and paste stencil. However, electrically, the 1.5SMC16A-E3/9AT matches the VWM, VBR, and VC of legacy 1.5KE16A (DO-41), making it a functional upgrade path when migrating to SMT. Always validate thermal and surge performance in the new layout before qualifying the 1.5SMC16A-E3/9AT.
1.5SMC16A-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:
- 1
- Bidirectional Channels:
- -
- 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)
1.5SMC16A-E3/9AT FAQ
1.How can I place an order for 1.5SMC16A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC16A-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 1.5SMC16A-E3/9AT reliable?
The price and inventory of 1.5SMC16A-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 1.5SMC16A-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC16A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC16A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC16A-E3/9AT?
1.5SMC16A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC16A-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 1.5SMC16A-E3/9AT?
For technical support, including 1.5SMC16A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC16A-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC16A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC16A-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 1.5SMC16A-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC16A-E3/9AT?
All 1.5SMC16A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC16A-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 1.5SMC16A-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC16A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC16A-E3/9AT Tags
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