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Vishay General Semiconductor - Diodes Division TPSMP16AHM3/85A
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- Part No.:
- TPSMP16AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP16AHM3/85A.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,315
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Product details
Overview
TPSMP16AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the eSMP® Series, designed for high-reliability overvoltage protection of sensitive electronics. It features a 15.2 V to 16.8 V breakdown voltage (VBR), 13.6 V stand-off voltage (VWM), 400 W peak pulse power (PPPM), and 17.8 A peak pulse current (IPPM) under 10/1000 µs waveform - deployed in automotive sensor lines and industrial I/O interfaces.
For engineers reviewing the TPSMP16AHM3/85A datasheet, TPSMP16AHM3/85A pinout, TPSMP16AHM3/85A application, or TPSMP16AHM3/85A equivalent, key selection criteria include its AEC-Q101 qualification, DO-220AA (SMP) package with 1.0 mm profile, TJ = 185 °C operation, low clamping voltage (22.5 V at IPPM), and MSL Level 1 reflow compatibility - critical for automotive-grade PCB designs requiring robust ESD/surge immunity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective clamping during ESD events (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5). Its unidirectional polarity and cathode-band marking align with standard PCB layout conventions for reverse-biased protection circuits.
The device operates across -65 °C to +185 °C junction temperature range and is rated for 40 A non-repetitive forward surge current (IFSM). Its 2.5 V maximum forward voltage at 25 A supports low-loss conduction during fault conditions without excessive power dissipation in series protection configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V - defines minimum trigger threshold and maximum variation band for reliable overvoltage detection |
| VWM | 13.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA, ensuring no false triggering |
| PPPM | 400 W - peak power handling capability under 10/1000 µs surge, sufficient for ISO 7637-2 Pulse 1/2a/3a compliance |
| IPPM | 17.8 A - peak surge current capacity at clamping voltage, directly usable for PCB trace sizing and fuse coordination |
| VC @ IPPM | 22.5 V - clamped voltage during full-rated surge, limiting downstream IC stress to safe levels per IEC 61000-4-2 Class 4 |
| TJ max | +185 °C - enables placement near high-temperature components (e.g., power MOSFETs, engine control units) without derating |
| Package | DO-220AA (SMP) - ultra-low-profile surface-mount package (1.0 mm height) compatible with automated pick-and-place |
Pinout & Package
DO-220AA (SMP) package: single-axis molded case with cathode band marking; matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102 solderability standards; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line (e.g., CAN_H, LIN, sensor output); must be routed with low-inductance trace |
| Cathode | Clamping reference / ground reference | Connected to system ground plane or local low-impedance return; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment interfaces |
| Junction passivation | Enhanced reliability under high-humidity and thermal cycling conditions per JESD22-A101/A110 |
| MSL Level 1 | Unlimited floor life and compatibility with 260 °C peak reflow profiles without baking |
| Low profile (1.0 mm height) | Enables use in space-constrained modules such as camera ECUs and compact motor drivers |
| Uni-directional configuration | Suitable for DC-biased signal lines (e.g., RS-485, CAN, LIN) where reverse conduction must be blocked |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine bay modules exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp surges before signal conditioning circuitry. Use Value: Limits clamped voltage to 22.5 V while maintaining 13.6 V stand-off, preserving signal integrity and preventing ADC saturation or latch-up. |
Use Scenario: Safeguarding 24 V digital input channels on PLC modules against field-wiring induced surges and ESD events during maintenance. IC Role / Device Role / Timing Role: Standoff-mode TVS connected across input optocoupler terminals to absorb energy from inductive kickback and cable discharge. Use Value: Withstands 400 W peak pulses and operates up to +185 °C, enabling direct mounting on DIN-rail mounted industrial controllers without thermal derating. |
| Automotive LIN Bus Protection | Consumer Appliance Motor Control |
|
Use Scenario: Securing LIN bus transceivers in body control modules against battery reversal, jump-start spikes, and electrostatic discharge during assembly. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN transceiver TX/RX pins and vehicle ground to suppress common-mode transients without disrupting low-speed communication. Use Value: Fast response time and 22.5 V clamping ensure LIN signal edges remain intact during 10/1000 µs surges, maintaining <1 % bit error rate compliance. |
Use Scenario: Overvoltage protection for gate drive signals in BLDC motor inverters used in washing machines and HVAC fans subjected to back-EMF spikes. IC Role / Device Role / Timing Role: TVS placed across high-side gate resistor to clamp Miller-induced voltage overshoot during switching transitions. Use Value: 17.8 A IPPM and 2.5 V VF at 25 A enable reliable suppression of >100 V spikes without affecting PWM timing or gate driver efficiency. |
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 | Higher VBR (17.8–19.7 V), lower PPPM (400 W same), but SMA package (2.3 mm height) vs. DO-220AA (1.0 mm) | Less suitable for ultra-thin automotive modules; requires larger PCB footprint and higher thermal mass for equivalent surge handling | Select when legacy SMA footprint reuse is required and height constraint is relaxed |
| TPSMP16AHE3/85A | Same electrical specs and DO-220AA package; differs only in halogen-free compliance documentation (HM3 vs. HE3 suffix) | No functional difference; identical performance and mounting requirements | Choose based on RoHS/halogen-free certification requirements - HM3 meets JESD201 Class 2 whisker test, HE3 meets JEDEC J-STD-020 MSL Level 1 |
Compared with SMAJ16A-E3/5AT, TPSMP16AHM3/85A offers 57 % lower profile and tighter VBR tolerance, improving design margin in space-critical automotive nodes; versus TPSMP16AHE3/85A, it provides identical protection performance with enhanced whisker resistance for long-term reliability in vibration-prone environments.
Availability
TPSMP16AHM3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and consumer appliance motor control requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for TPSMP16AHM3/85A 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The TPSMP16AHM3/85A belongs to Vishay's eSMP® PAR® TVS family, engineered specifically for high-power-density, AEC-Q101-qualified overvoltage protection in harsh-environment electronics.
FAQ
What is the breakdown voltage range of the TPSMP16AHM3/85A?
The TPSMP16AHM3/85A has a specified breakdown voltage (VBR) range of 15.2 V to 16.8 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent triggering behavior across production lots and temperature extremes, making it suitable for precision protection in automotive and industrial systems where overvoltage thresholds must remain predictable.
Is the TPSMP16AHM3/85A suitable for automotive applications?
Yes, the TPSMP16AHM3/85A is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature. Its DO-220AA package, MSL Level 1 reflow compatibility, and 400 W peak pulse power make it appropriate for engine control units, ADAS sensors, and body electronics where reliability under thermal cycling and electrical stress is mandatory.
What does the "HM3/85A" suffix indicate in TPSMP16AHM3/85A?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, while "85A" specifies the 13-inch tape-and-reel packaging format containing 10,000 units. This packaging enables high-speed automated placement in SMT lines and supports traceable lot control for automotive production requirements.
How does the clamping voltage of TPSMP16AHM3/85A compare to its stand-off voltage?
The TPSMP16AHM3/85A has a stand-off voltage (VWM) of 13.6 V and a maximum clamping voltage (VC) of 22.5 V at 17.8 A peak pulse current. This 8.9 V differential provides a robust safety margin for protecting 12 V nominal systems - ensuring downstream ICs see no more than 22.5 V during worst-case transients while remaining fully inactive during normal operation.
Can TPSMP16AHM3/85A replace older SMAJ-series TVS diodes in existing designs?
TPSMP16AHM3/85A is not a pin-compatible replacement for SMAJ-series devices due to its DO-220AA (SMP) package versus SMA's larger outline. While electrical parameters overlap, the 1.0 mm height and 2.67 mm length require PCB layout revision. It is recommended only for new designs prioritizing ultra-low profile and AEC-Q101 compliance - not for drop-in upgrades of legacy SMA footprints.
TPSMP16AHM3/85A 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 17.8A
- 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)
TPSMP16AHM3/85A FAQ
1.How can I place an order for TPSMP16AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP16AHM3/85A 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 TPSMP16AHM3/85A reliable?
The price and inventory of TPSMP16AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP16AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP16AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP16AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP16AHM3/85A?
TPSMP16AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP16AHM3/85A 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 TPSMP16AHM3/85A?
For technical support, including TPSMP16AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP16AHM3/85A requirements.
6.How does Aetrix verify that TPSMP16AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP16AHM3/85A 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 TPSMP16AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP16AHM3/85A?
All TPSMP16AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP16AHM3/85A, 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 TPSMP16AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP16AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP16AHM3/85A Tags
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