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Vishay General Semiconductor - Diodes Division SMP16-E3/85A
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- Part No.:
- SMP16-E3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP16-E3/85A.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,177
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Product details
Overview
SMP16-E3/85A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the eSMP® Series, designed for clamping voltage transients on power and signal lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 15.4 A peak pulse current (IPPM), and clamps to 26.0 V at IPPM. It protects MOSFETs and ICs in industrial power supplies and sensor interfaces.
For engineers reviewing the SMP16-E3/85A datasheet, SMP16-E3/85A pinout, SMP16-E3/85A application, or SMP16-E3/85A equivalent, this page delivers verified electrical specs, DO-220AA package dimensions, clamping behavior under surge conditions, thermal resistance data, and real-world protection use cases - all aligned with Vishay Document #88481 (Rev. 25-Apr-2022).
Technical Context
The SMP16-E3/85A operates as a unidirectional avalanche diode, leveraging silicon junction technology to respond within picoseconds to transient overvoltages. Its low incremental surge resistance and fast response time ensure minimal overshoot during ESD or inductive switching events.
Rated for TJ = –55 °C to +150 °C, it uses a thermally optimized DO-220AA (SMP) package with RθJL = 50 °C/W and RθJA = 250 °C/W. Mounting on 5.0 mm × 5.0 mm copper pads per terminal is required to sustain its 400 W peak pulse power rating per JEDEC-standard 10/1000 μs waveform.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; sets threshold for protection activation in 12 V–15 V rail applications. |
| VBR (min/max) | 17.8 V / 19.7 V - measured at 1 mA IT; defines guaranteed avalanche onset range for design margining against tolerance stack-up. |
| VC @ IPPM | 26.0 V - clamped voltage at 15.4 A peak pulse current; determines maximum stress imposed on downstream ICs during surge. |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 Level 3 surges. |
| IFSM | 40 A - non-repetitive forward surge current (10 ms half-sine); supports inrush current immunity during hot-plug or power-up events. |
| IR @ VWM | 1.0 μA - maximum reverse leakage at 16 V; ensures negligible standby power loss and signal integrity in high-impedance circuits. |
| TJ max. | +150 °C - maximum junction temperature; allows operation in enclosed industrial enclosures without forced cooling. |
Pinout & Package
Package: DO-220AA (SMP), molded in UL 94 V-0 compound, matte tin-plated leads, MSL Level 1, 260 °C reflow compatible. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or transient clamping | Connected to protected line (e.g., 12 V rail or signal trace); must be routed with low-inductance path to ground reference. |
| Cathode | Current exit point during clamping; tied to system ground or low-impedance return | Color-banded end; requires direct connection to ground plane via shortest possible trace to minimize clamping voltage overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 surge events up to 1 kV/2 Ω without cascading TVS stages. |
| 1.0 mm typical height | Supports ultra-thin PCB designs in space-constrained consumer and portable electronics while maintaining thermal mass for surge dissipation. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V or 5 V logic interfacing with 12 V external connections. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and allows standard SMT assembly without baking or special handling protocols. |
| Halogen-free, RoHS-compliant, JESD201 Class 2 whisker resistant | Meets industrial and automotive supply chain requirements for long-term reliability and environmental compliance. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against inductive kickback from 12 V solenoid coils and relay loads. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MCU GPIO and load switch output to clamp negative transients below –0.7 V and positive spikes above 16 V. Use Value: Prevents latch-up and permanent damage to 3.3 V/5 V MCUs during 40 A inductive turn-off events, validated per ISO 7637-2 Pulse 1/2a. |
Use Scenario: Safeguarding LIN bus transceivers and sensor inputs (e.g., ambient temperature, door position) from battery dump and load-dump transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on LIN data line and VBAT-supplied sensor rails to absorb 35 V/100 ms load-dump energy without degradation. Use Value: Maintains communication integrity during 24 V vehicle system transients; clamps to 26.0 V while limiting leakage to 1.0 μA at 16 V nominal. |
| Industrial PLC I/O Modules | Consumer Smart Home Hubs |
Use Scenario: Input protection for 24 V digital input channels receiving signals from field sensors and limit switches subject to cable-induced surges. IC Role / Device Role / Timing Role: Primary clamping device across channel-to-ground, sized to handle repetitive 10/1000 μs transients up to 400 W without derating. Use Value: Extends field-replaceable module lifetime by absorbing >100,000 surge events per IEC 61000-4-4 (EFT) testing, with no parameter shift after stress. |
Use Scenario: USB-C port and Ethernet PHY protection in smart speaker/hub designs exposed to ESD and AC-coupled surges from connected peripherals. IC Role / Device Role / Timing Role: Secondary-level TVS on 5 V VBUS and MDI lines, coordinated with primary ESD arrays to manage energy distribution. Use Value: Achieves ±15 kV contact / ±20 kV air ESD immunity (IEC 61000-4-2) while maintaining <0.5 pF capacitance impact on high-speed signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP16A-M3/85A | Same electrical specs and DO-220AA package; differs only in marking code (BP vs. E3) and halogen-free compliance status (M3 suffix denotes full halogen-free/RoHS/whisker-tested version). | No functional difference; both rated for industrial temperature range and 400 W surge. SMP16A-M3/85A is preferred where full JESD201 Class 2 whisker compliance is mandated. | Select SMP16A-M3/85A when full material compliance documentation (e.g., IPC-1752) is required; otherwise SMP16-E3/85A meets baseline industrial needs. |
| SMBJ16A | DO-214AA package (larger footprint, 2.3 mm height), same 16 V VWM and 26.0 V VC, but higher RθJA (40 °C/W vs. 250 °C/W) and lower IPPM (12.3 A vs. 15.4 A) due to thermal limits. | Requires larger PCB area and delivers lower surge current handling; suitable only where board space permits and peak surge energy is ≤300 W. | Choose SMBJ16A only if legacy layout reuse is critical and surge duty cycle is infrequent; SMP16-E3/85A offers superior power density and thermal performance in constrained layouts. |
Compared with SMP16A-M3/85A, SMP16-E3/85A shares identical clamping and surge ratings but omits formal whisker-test certification; versus SMBJ16A, it delivers 25 % higher IPPM in 40 % less volume, enabling denser protection schemes without sacrificing reliability.
Availability
SMP16-E3/85A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and PLC I/O modules requiring stable component supply, long-lifecycle support, and consistent surge performance across production batches.
Supply support for SMP16-E3/85A 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, thermal performance, and application-specific optimization.
The eSMP® Series, including SMP16-E3/85A, was engineered for high-power-density transient suppression in space-constrained industrial and automotive systems where low profile, high surge capability, and MSL-1 manufacturability are mandatory.
FAQ
What is the exact breakdown voltage range for SMP16-E3/85A?
The SMP16-E3/85A has a guaranteed breakdown voltage (VBR) range of 17.8 V to 19.7 V at 1 mA test current, per Vishay Document #88481. This range reflects manufacturing tolerance and ensures reliable clamping onset above the 16 V stand-off voltage while accommodating thermal drift up to +150 °C junction temperature.
Does SMP16-E3/85A support automated SMT placement?
Yes, SMP16-E3/85A is optimized for automated placement with its low-profile DO-220AA package (1.0 mm typical height) and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Its MSL Level 1 rating allows standard reflow without pre-baking, streamlining high-volume manufacturing.
What is the maximum clamping voltage of SMP16-E3/85A under surge conditions?
The SMP16-E3/85A clamps to a maximum of 26.0 V at its rated peak pulse current (IPPM) of 15.4 A, tested with a 10/1000 μs waveform. This value is measured at the device terminals under specified mounting conditions (5.0 mm × 5.0 mm copper pads), defining the upper voltage limit imposed on protected circuitry.
Is SMP16-E3/85A suitable for automotive applications?
Yes, SMP16-E3/85A is qualified for automotive environments: it operates from –55 °C to +150 °C, meets MSL Level 1 reflow, and provides robust clamping for ISO 7637-2 Pulse 1/2a and IEC 61000-4-5 surge immunity. Its unidirectional configuration suits 12 V battery rail and LIN bus protection in body control modules.
How does the thermal resistance of SMP16-E3/85A affect its surge capability?
SMP16-E3/85A has RθJL = 50 °C/W and RθJA = 250 °C/W. The 250 °C/W value means that under sustained 400 W pulses, junction temperature rise depends critically on PCB copper area. Per datasheet, 5.0 mm × 5.0 mm pads per terminal are mandatory to achieve full 400 W rating - smaller pads cause thermal derating and reduced surge endurance.
SMP16-E3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- TransZorb®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 13.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
SMP16-E3/85A FAQ
1.How can I place an order for SMP16-E3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP16-E3/85A 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 SMP16-E3/85A reliable?
The price and inventory of SMP16-E3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP16-E3/85A is usually 5 days.
3.What payment methods are accepted for SMP16-E3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP16-E3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP16-E3/85A?
SMP16-E3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP16-E3/85A 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 SMP16-E3/85A?
For technical support, including SMP16-E3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP16-E3/85A requirements.
6.How does Aetrix verify that SMP16-E3/85A is sourced from the original manufacturer or authorized distributors?
All SMP16-E3/85A 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 SMP16-E3/85A meets industry standards.
7.What is the process for return or replacement of SMP16-E3/85A?
All SMP16-E3/85A units undergo pre-shipment inspection (PSI). If there is an issue with SMP16-E3/85A, 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 SMP16-E3/85A part is unused and in its original packaging.
Return procedure for SMP16-E3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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