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Vishay General Semiconductor - Diodes Division TPSMP16HM3/85A
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- Part No.:
- TPSMP16HM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP16HM3/85A.pdf
- Description:
- TVS DIODE 12.9VWM 23.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,018
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Product details
Overview
TPSMP16HM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability automotive and industrial circuit protection. It features a 14.4 V to 17.6 V breakdown voltage (VBR), 23.5 V clamping voltage (VC) at 17.0 A peak pulse current, 400 W peak pulse power rating, and AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the TPSMP16HM3/85A datasheet, TPSMP16HM3/85A pinout, TPSMP16HM3/85A application, or TPSMP16HM3/85A equivalent, this device is selected for robust ESD/surge protection of 12 V automotive signal lines, sensor interfaces, and microcontroller I/Os where low-profile mounting, TJ = 185 °C operation, and MSL Level 1 reflow compatibility are critical.
Technical Context
The TPSMP16HM3/85A employs passivated anisotropic rectifier technology to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced transients (IEC 61000-4-5). Its unidirectional configuration supports DC-biased lines with defined polarity.
Designed for surface-mount automation on FR-4 PCBs with 5.0 mm × 5.0 mm copper pads per terminal, it delivers stable clamping performance across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.4 V / 17.6 V - ensures reliable triggering above 12 V nominal rail while avoiding false trips during load dump or cranking transients |
| VC @ IPPM | 23.5 V at 17.0 A - limits downstream voltage stress to safe levels for 3.3 V/5 V logic and automotive-grade MCUs |
| PPPM | 400 W (10/1000 μs waveform) - sustains high-energy surges common in automotive CAN/LIN bus and sensor lines |
| VWM | 12.9 V - provides adequate margin below typical 13.5 V battery float voltage for continuous reverse-bias operation |
| IR @ VWM | 1.0 μA max - minimizes standby leakage in always-on automotive modules without compromising battery drain |
| TJ max | +185 °C - enables placement near heat sources (e.g., powertrain ECUs) without derating or thermal shutdown |
| Package | DO-220AA (SMP) - 1.0 mm typical height supports ultra-thin module designs and automated pick-and-place |
Pinout & Package
DO-220AA (SMP) package: 2-terminal surface-mount device with cathode band marking; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards; MSL Level 1, peak reflow temperature 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/protected line connection | Connected to signal or power line requiring transient suppression; must be routed with low-inductance trace |
| Cathode | Ground reference | Connected to system ground plane; requires low-impedance path to handle 17.0 A surge current without voltage rise |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control, body electronics, and ADAS sensors |
| Junction passivation optimized design | Enables stable VBR and low leakage over 15+ year lifetime at 150 °C operating temperature |
| Very low profile (1.0 mm typical height) | Permits integration into space-constrained modules such as radar front-ends and compact ECU housings |
| Meets MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and allows single-pass reflow without baking or special handling |
| Uni-directional configuration | Optimized for DC-biased lines like LIN bus, analog sensor outputs, and MCU GPIOs with known polarity |
Applications
| Automotive LIN Bus Protection | Engine Control Unit (ECU) Sensor Inputs |
|---|---|
Use Scenario: Protecting LIN transceiver data lines against load dump, jump-start spikes, and ESD events in vehicle body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN line and ground to clamp transients before they reach the LIN PHY IC. Use Value: Maintains signal integrity with <1 ns response and holds clamped voltage ≤23.5 V, preventing LIN PHY latch-up or damage during ISO 7637-2 Pulse 1/2a/5a tests. | Use Scenario: Safeguarding analog inputs from oxygen, throttle position, and coolant temperature sensors exposed to under-hood electrical noise. IC Role / Device Role / Timing Role: Front-end transient suppressor on sensor signal traces entering the ECU's ADC input stage. Use Value: Limits voltage excursion to ≤23.5 V during 400 W surges, preserving 12-bit ADC accuracy and avoiding input-stage saturation or burnout. |
| Industrial PLC Digital I/O Protection | Automotive Camera Module Power Rails |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from inductive switching transients and field wiring faults. IC Role / Device Role / Timing Role: Standoff-rated TVS on each input channel, placed upstream of optocoupler or Schmitt trigger interface. Use Value: Withstands repetitive 400 W pulses and maintains VWM = 12.9 V margin over 24 V nominal, ensuring no false triggering during normal operation. | Use Scenario: Protecting 12 V power supply rails in rear-view or surround-view camera modules subject to automotive battery transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, coordinated with upstream fuse and downstream LDO. Use Value: Clamps 12 V rail to ≤23.5 V during ISO 16750-2 load dump, preventing damage to image sensor and ISP ASIC while supporting +185 °C ambient operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/5AT | DO-214AC (SMA) package; 16.7 V VBR min; 25.5 V VC at 15.9 A; 400 W PPPM; same AEC-Q101 grade | Larger footprint (2.5 mm height); lower thermal mass; less suitable for ultra-thin modules | Select when existing SMA footprint is fixed and board height >1.2 mm is acceptable |
| TPSMP16A | Same DO-220AA package; tighter VBR tolerance (±5 % vs. ±10 %); 15.2–16.8 V range; identical VC, PPPM, and thermal specs | Requires revision-controlled BOM update; offers improved voltage consistency for precision biasing | Select when tighter breakdown voltage matching is required for calibrated sensor interfaces or regulated 12 V rail monitoring |
Compared with SMAJ16A-E3/5AT and TPSMP16A, the TPSMP16HM3/85A provides identical surge capability in a lower-profile package with verified MSL Level 1 process compatibility-making it optimal for next-generation automotive modules where height and reflow robustness are prioritized over minor VBR tolerance differences.
Availability
TPSMP16HM3/85A is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and sensor interface circuits requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMP16HM3/85A 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, TVS devices, and power MOSFETs for automotive, industrial, and computing markets.
The TPSMP series is part of Vishay's eSMP® family, engineered specifically for high-power-density, high-reliability transient suppression in space-constrained automotive and industrial environments.
FAQ
What is the breakdown voltage range of the TPSMP16HM3/85A?
The TPSMP16HM3/85A has a specified breakdown voltage (VBR) range of 14.4 V to 17.6 V at 1.0 mA test current. This range ensures reliable turn-on above standard 12 V automotive systems while maintaining sufficient margin against normal operating voltage fluctuations, making it suitable for protecting 12 V signal and power lines in the TPSMP16HM3/85A application space.
Is the TPSMP16HM3/85A suitable for automotive under-hood use?
Yes, the TPSMP16HM3/85A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, meeting stringent automotive under-hood requirements. Its DO-220AA package, halogen-free construction, and MSL Level 1 reflow compatibility make the TPSMP16HM3/85A appropriate for engine control units, transmission modules, and ADAS sensor assemblies exposed to high ambient temperatures and mechanical vibration.
What is the clamping voltage of the TPSMP16HM3/85A at its maximum rated surge current?
The TPSMP16HM3/85A clamps to a maximum of 23.5 V at its rated peak pulse current of 17.0 A (10/1000 μs waveform). This clamping performance directly protects downstream components such as microcontrollers, LIN transceivers, and analog front-ends by limiting transient overvoltage exposure, confirming the TPSMP16HM3/85A's role in robust circuit-level surge immunity.
Does the TPSMP16HM3/85A have polarity marking, and how is it identified?
Yes, the TPSMP16HM3/85A uses a color band to denote the cathode end, consistent with industry-standard diode polarity identification. This marking is visible on the DO-220AA package body and must be aligned with the PCB silkscreen and layout to ensure correct unidirectional orientation-critical because reverse connection would render the TPSMP16HM3/85A ineffective for transient suppression.
What packaging option does the TPSMP16HM3/85A use, and what is its reel quantity?
The TPSMP16HM3/85A is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 10,000 pieces per reel (package code "85A"). This packaging supports high-volume SMT assembly and is compatible with standard pick-and-place equipment, ensuring efficient handling and placement of the TPSMP16HM3/85A in automated manufacturing environments.
TPSMP16HM3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 17A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP16HM3/85A FAQ
1.How can I place an order for TPSMP16HM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP16HM3/85A 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 TPSMP16HM3/85A reliable?
The price and inventory of TPSMP16HM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP16HM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP16HM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP16HM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP16HM3/85A?
TPSMP16HM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP16HM3/85A 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 TPSMP16HM3/85A?
For technical support, including TPSMP16HM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP16HM3/85A requirements.
6.How does Aetrix verify that TPSMP16HM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP16HM3/85A 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 TPSMP16HM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP16HM3/85A?
All TPSMP16HM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP16HM3/85A, 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 TPSMP16HM3/85A part is unused and in its original packaging.
Return procedure for TPSMP16HM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP16HM3/85A Tags
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