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Vishay General Semiconductor - Diodes Division TPSMA16AHE3_A/I
- Part No.:
- TPSMA16AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA16AHE3_A/I.pdf
- Description:
- TVS DIODE 13.6VWM 22VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,999
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Product details
Overview
TPSMA16AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 16.0 V nominal breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 22.0 V maximum clamping voltage (VC) at 17.8 A, 1.0 W steady-state power dissipation, and 185 °C maximum junction temperature - enabling robust protection in automotive and industrial power rails.
For engineers reviewing the TPSMA16AHE3_A/I datasheet, TPSMA16AHE3_A/I pinout, TPSMA16AHE3_A/I application, or TPSMA16AHE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 13.6 V stand-off voltage (VWM), low 1.0 μA reverse leakage at VWM, and compatibility with high-reliability PCB layouts using 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping performance across -65 °C to +185 °C operating range. Its 0.078 %/°C temperature coefficient of VBR ensures predictable voltage threshold shift under thermal stress, critical for automotive under-hood applications.
The device operates exclusively in unidirectional mode with cathode-band polarity marking, and achieves fast response time (<1 ns) and low incremental surge resistance - enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients without affecting normal circuit operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 15.2 V / 16.0 V / 16.8 V - defines precise voltage threshold at which clamping initiates under 1.0 mA test current |
| VWM | 13.6 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA at 25 °C |
| VC @ IPPM | 22.0 V at 17.8 A - clamped voltage during 400 W 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 400 W - peak transient energy absorption capability per JEDEC standard waveform |
| TJ max. | +185 °C - enables use in high-temperature environments including engine control units and power converters |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability per stress test requirements (HE3 suffix) |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" length, compatible with automated assembly |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: molded epoxy body, matte tin-plated terminals, cathode indicated by color band. Compliant with MSL Level 1 (260 °C reflow peak) and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR and low leakage across full temperature range (-65 °C to +185 °C) |
| 400 W peak pulse power (10/1000 μs) | Withstands repetitive surge events in automotive load-dump and ISO 7637-2 compliant systems |
| 0.078 %/°C VBR tempco | Allows accurate clamping voltage prediction across junction temperature excursions in engine bay designs |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics per stress testing including HTGB, HTRB, and TCT |
| MSL Level 1 moisture sensitivity | Permits unlimited floor life and single-reflow processing without baking preconditioning |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump transients up to ISO 7637-2 Pulse 5a (110 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp overvoltage before it reaches MCU or CAN transceiver. Use Value: Limits peak voltage to 22.0 V during 400 W surge, preventing latch-up or permanent damage to 3.3 V/5 V logic interfaces. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Fast-response transient suppressor installed at sensor connector interface to absorb ESD and cable-coupled noise. Use Value: Sub-1 ns response time and 1.0 μA leakage at 13.6 V preserve signal integrity and minimize offset error in 4–20 mA loops. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
|
Use Scenario: Secondary-side overvoltage protection in USB-C PD adapters handling 20 V input rails. IC Role / Device Role / Timing Role: Standoff-rated TVS on 20 V output bus to absorb flyback spikes from synchronous rectifiers. Use Value: 13.6 V VWM allows safe operation under normal regulation while clamping >22 V faults within 100 ns. |
Use Scenario: Surge suppression on -48 V DC feeding lines in telecom base station power distribution units. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to negative rail to protect upstream DC/DC controllers and monitoring ICs. Use Value: 185 °C TJ rating supports reliable operation in sealed, convection-limited enclosures near power converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHE3_A/H | Same VBR (16.0 V) and VC (22.0 V), but SMB package (DO-214AA); 600 W PPPM | Higher surge rating suits higher-energy transients; larger footprint may limit layout density | Select when 600 W pulse power is required and board space permits SMB outline |
| TPSMA16AHM3_A/I | Identical electrical specs and SMA package; halogen-free, RoHS-compliant variant with HM3 suffix | No functional difference; used where halogen-free material compliance is mandated (e.g., EU public infrastructure) | Choose HM3 version if halogen-free certification is required; HE3 remains standard for general automotive use |
Compared with TPSMA16AHE3_A/I, SMBJ16AHE3_A/H offers higher surge capacity in a larger package, while TPSMA16AHM3_A/I provides identical protection with halogen-free construction - enabling direct substitution where material compliance drives specification.
Availability
TPSMA16AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feed circuits requiring stable component supply with AEC-Q101 qualification and high-temperature reliability.
Supply support for TPSMA16AHE3_A/I 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 optoelectronics with emphasis on reliability and high-temperature performance.
The TPSMA16AHE3_A/I belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for automotive and industrial transient suppression where AEC-Q101 qualification, 185 °C operation, and stable clamping are mandatory.
FAQ
What is the clamping voltage of the TPSMA16AHE3_A/I under a 400 W surge?
The TPSMA16AHE3_A/I clamps to a maximum of 22.0 V when subjected to its rated 400 W peak pulse power (10/1000 μs waveform) at 17.8 A. This value is measured per JEDEC standards and ensures downstream components see limited overvoltage stress during transient events. The TPSMA16AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is the TPSMA16AHE3_A/I qualified for automotive applications?
Yes, the TPSMA16AHE3_A/I carries the HE3 suffix, confirming it is AEC-Q101 qualified for automotive use. It has passed stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). Its 185 °C maximum junction temperature and stable VBR tempco make the TPSMA16AHE3_A/I suitable for under-hood and powertrain control modules.
What does the "A/I" suffix mean in TPSMA16AHE3_A/I?
The "A/I" suffix in TPSMA16AHE3_A/I indicates packaging configuration: "A" denotes revision code A per Vishay's internal documentation, and "I" specifies 13-inch diameter plastic tape-and-reel delivery containing 7500 units. This format supports high-volume SMT placement and is traceable per Vishay's lot-control system. The TPSMA16AHE3_A/I is not a functional variant - electrical specs match the base TPSMA16AHE3 series.
How does the TPSMA16AHE3_A/I compare to bidirectional TVS diodes?
The TPSMA16AHE3_A/I is unidirectional only, meaning it protects against positive transients on a line referenced to ground - ideal for DC power rails like 12 V or 24 V systems. Unlike bidirectional variants, it does not conduct during negative excursions, eliminating risk of false triggering or increased leakage in polarized circuits. For AC or dual-polarity signal lines, a different part number would be required; the TPSMA16AHE3_A/I is optimized for single-polarity DC protection.
What is the maximum reverse leakage current of the TPSMA16AHE3_A/I at its stand-off voltage?
At its 13.6 V stand-off voltage (VWM) and 25 °C ambient, the TPSMA16AHE3_A/I exhibits a maximum reverse leakage current of 1.0 μA. At elevated temperatures (e.g., 150 °C), leakage rises to 1000 μA - a design consideration for high-temperature applications. This low baseline leakage preserves efficiency in always-on power rails and avoids loading sensitive analog reference nodes in systems using the TPSMA16AHE3_A/I.
TPSMA16AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- 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:
- 22V
- 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-214AC (SMA)
TPSMA16AHE3_A/I FAQ
1.How can I place an order for TPSMA16AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA16AHE3_A/I 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 TPSMA16AHE3_A/I reliable?
The price and inventory of TPSMA16AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA16AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMA16AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA16AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA16AHE3_A/I?
TPSMA16AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA16AHE3_A/I 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 TPSMA16AHE3_A/I?
For technical support, including TPSMA16AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA16AHE3_A/I requirements.
6.How does Aetrix verify that TPSMA16AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMA16AHE3_A/I 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 TPSMA16AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMA16AHE3_A/I?
All TPSMA16AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA16AHE3_A/I, 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 TPSMA16AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMA16AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA16AHE3_A/I Tags
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