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Vishay General Semiconductor - Diodes Division TPSMP20A-E3/84A
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- Part No.:
- TPSMP20A-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP20A-E3/84A.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,407
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Product details
Overview
TPSMP20A-E3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade overvoltage protection. It features a breakdown voltage of 19.0–21.0 V at 1 mA test current, clamps to ≤27.7 V at 14.4 A peak pulse current, and delivers 400 W peak pulse power with 1.0 W steady-state power dissipation.
For engineers reviewing the TPSMP20A-E3/84A datasheet, TPSMP20A-E3/84A pinout, TPSMP20A-E3/84A application, or TPSMP20A-E3/84A equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C maximum junction temperature, low-profile 1.0 mm height, and suitability for high-density PCB layouts in automotive sensor and control units.
Technical Context
The TPSMP20A-E3/84A uses Vishay's patented PAR oxide passivated chip construction to achieve low incremental surge resistance and excellent clamping performance under 10/1000 µs transients. Its unidirectional configuration provides forward conduction capability with 2.5 V max forward voltage at 25 A.
Rated for MSL Level 1 per J-STD-020C and compliant with RoHS 2002/95/EC and WEEE 2002/96/EC, it supports automated placement and withstands solder dip at 260 °C for 40 seconds. Polarity is marked by a cathode band on the DO-220AA case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage V(BR) | 19.0–21.0 V at 1 mA - defines precise turn-on threshold for overvoltage clamping |
| Clamping Voltage VC | ≤27.7 V at 14.4 A IPPM - ensures protected ICs see safe voltage during 10/1000 µs surge |
| Peak Pulse Power PPPM | 400 W - enables robust protection against ISO 7637-2 and ISO 16750-2 automotive transients |
| Steady-State Power PD | 1.0 W - supports continuous operation without heatsinking on standard PCB copper pads |
| Operating Temperature Range | −65 °C to +185 °C - meets extended thermal requirements for under-hood automotive electronics |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm typical height) for space-constrained modules |
Pinout & Package
DO-220AA (SMP) surface-mount package with matte tin-plated leads; cathode denoted by color band. Mounted on PCB using 5.0 × 5.0 mm copper pads per terminal per specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to protected circuit ground or low-side reference; enables unidirectional clamping to ground |
| Cathode | Transient voltage clamp node | Connected to line being protected (e.g., sensor supply rail); conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable, repeatable breakdown behavior and long-term reliability under repeated surge stress |
| MSL Level 1 rating | Eliminates pre-bake requirement before reflow, reducing manufacturing complexity and cost |
| 185 °C max junction temperature | Supports placement near heat-generating components in engine control units and ADAS modules |
| 1.0 mm typical height | Reduces board stack height in compact automotive ECUs and camera modules |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) Power Rail |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient energy to ground while maintaining signal integrity. Use Value: Prevents sensor IC damage from ISO 16750-2 pulse 5a/b surges up to 35 V, leveraging 27.7 V clamping at 14.4 A. | Use Scenario: Safeguarding 12 V supply inputs of microcontrollers and CAN transceivers in engine management systems. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) voltage clamp absorbing load dump energy without affecting system startup timing. Use Value: Withstands 400 W peak pulse power and 40 A IFSM, ensuring survival during 12 V battery disconnect/reconnect events. |
| Infotainment System USB Lines | ADAS Camera Module Power Input |
Use Scenario: ESD and surge protection on USB 2.0 VBUS and data lines in head unit interfaces subject to human-body-model (HBM) and IEC 61000-4-5 threats. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor placed between connector and USB controller. Use Value: 1.0 µA max reverse leakage at 17.1 V stand-off enables minimal standby current impact on USB suspend mode. | Use Scenario: Protecting 5 V or 3.3 V power rails feeding image sensors and SerDes links in surround-view camera modules. IC Role / Device Role / Timing Role: Compact DO-220AA TVS mounted directly at camera connector to minimize inductance in surge path. Use Value: 1.0 mm height allows co-location with fine-pitch FPC connectors, preserving signal integrity and mechanical clearance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | DO-214AC package (higher profile: 2.3 mm), 20 V nominal V(BR), 300 W PPPM | Limited to non-automotive or lower-power industrial use due to lack of AEC-Q101 qualification | Select when footprint compatibility with SMA package is required and AEC-Q101 is not mandated |
| TPSMP20AHE3/84A | Same electrical specs but HE3 suffix denotes high-reliability grade (AEC-Q101 qualified with enhanced screening) | Required for mission-critical safety systems (e.g., airbag controllers) where extended lifetime testing applies | Choose for ASIL-B/C designs where zero-defect reliability and traceable lot history are mandatory |
Compared with SMAJ20A and TPSMP20AHE3/84A, the TPSMP20A-E3/84A offers optimal balance of automotive qualification, ultra-low profile, and 400 W surge capability-making it ideal for volume production of cost-sensitive yet AEC-Q101-compliant modules where board space is constrained.
Availability
TPSMP20A-E3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, engine control unit (ECU) power rail safeguarding, and ADAS camera module input conditioning requiring stable component supply across multi-year production cycles.
Supply support for TPSMP20A-E3/84A 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 TPSMP series was developed specifically for AEC-Q101-compliant transient protection in space-constrained automotive electronics, emphasizing low-profile packaging, high surge robustness, and process-controlled parametric consistency.
FAQ
What is the clamping voltage of the TPSMP20A-E3/84A at its rated peak pulse current?
The TPSMP20A-E3/84A clamps to a maximum of 27.7 V at its rated peak pulse current of 14.4 A under a 10/1000 µs waveform. This value is measured per JEDEC standards and ensures downstream ICs remain within safe operating voltage limits during automotive transients such as load dump or inductive switching events. The TPSMP20A-E3/84A achieves this with low incremental surge resistance enabled by its PAR oxide passivated chip structure.
Is the TPSMP20A-E3/84A qualified for automotive applications?
Yes, the TPSMP20A-E3/84A carries the E3 suffix indicating commercial-grade AEC-Q101 qualification. It meets all stress tests defined in the AEC-Q101 standard for discrete semiconductors-including temperature cycling, humidity bias, and surge robustness-and is approved for use in automotive subsystems such as body control modules, infotainment systems, and ADAS sensors. The TPSMP20A-E3/84A is explicitly referenced in Vishay's automotive-grade product documentation.
What is the maximum operating temperature for the TPSMP20A-E3/84A?
The TPSMP20A-E3/84A has a maximum junction temperature (TJ) of +185 °C and an operating junction and storage temperature range of −65 °C to +185 °C. This extended thermal capability allows reliable deployment in under-hood environments and near power-dissipating components. Derating curves in the datasheet confirm sustained operation at full power up to 50 °C ambient, with linear derating beyond that point. The TPSMP20A-E3/84A maintains specified electrical parameters across this full range.
Does the TPSMP20A-E3/84A have a bidirectional configuration option?
No, the TPSMP20A-E3/84A is unidirectional only, as confirmed in Vishay's official documentation. It is designed to clamp positive transients to ground and conduct forward current in the anode-to-cathode direction. For bidirectional protection, engineers must select alternate part numbers such as the TPSMP20CA series, which feature symmetrical breakdown characteristics. The TPSMP20A-E3/84A polarity is marked by a cathode band on the DO-220AA package body.
What packaging format is used for the TPSMP20A-E3/84A?
The TPSMP20A-E3/84A is supplied in 7-inch diameter plastic tape-and-reel packaging with a base quantity of 3000 units per reel (package code 84A). This format supports high-speed automated pick-and-place assembly and complies with EIA-481 standards. The device is MSL Level 1 rated, eliminating moisture sensitivity concerns and enabling direct placement without baking. The TPSMP20A-E3/84A's DO-220AA (SMP) package is optimized for this tape-and-reel handling with robust lead integrity.
TPSMP20A-E3/84A 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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 14.4A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP20A-E3/84A FAQ
1.How can I place an order for TPSMP20A-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP20A-E3/84A 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 TPSMP20A-E3/84A reliable?
The price and inventory of TPSMP20A-E3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP20A-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP20A-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP20A-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP20A-E3/84A?
TPSMP20A-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP20A-E3/84A 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 TPSMP20A-E3/84A?
For technical support, including TPSMP20A-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP20A-E3/84A requirements.
6.How does Aetrix verify that TPSMP20A-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP20A-E3/84A 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 TPSMP20A-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP20A-E3/84A?
All TPSMP20A-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP20A-E3/84A, 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 TPSMP20A-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP20A-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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