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Vishay General Semiconductor - Diodes Division TPSMP20AHE3/84A
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- Part No.:
- TPSMP20AHE3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP20AHE3/84A.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,239
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Product details
Overview
TPSMP20AHE3/84A from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) in DO-220AA (SMP) package, with 19.0–21.0 V breakdown voltage, 27.7 V clamping voltage at 14.4 A, 400 W peak pulse power, and AEC-Q101 qualification for harsh environments.
For engineers reviewing the TPSMP20AHE3/84A datasheet, TPSMP20AHE3/84A pinout, TPSMP20AHE3/84A application, or TPSMP20AHE3/84A equivalent, key selection criteria include clamping performance under 10/1000 µs surge, low-profile mounting compatibility, automotive reliability validation, and unidirectional protection architecture for DC-biased signal/power lines.
Technical Context
This TVS diode uses patented PAR oxide-passivated chip construction to achieve low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and load-dump transients in automotive electronics. Its unidirectional configuration supports DC-coupled protection where reverse polarity is not expected.
Rated for operation from –65 °C to +185 °C junction temperature and qualified per AEC-Q101, the TPSMP20AHE3/84A is designed for surface-mount placement on FR-4 PCBs with 5.0 × 5.0 mm copper pads per terminal, meeting MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 19.0–21.0 V at 1 mA - defines minimum voltage at which clamping initiates under transient stress |
| Clamping Voltage VC | 27.7 V at 14.4 A (10/1000 µs) - maximum voltage seen by protected circuit during rated surge |
| Peak Pulse Power PPPM | 400 W - surge energy handling capacity for 10/1000 µs waveform at 25 °C |
| Stand-off Voltage VWM | 17.1 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| Leakage Current IR | ≤1.0 µA at 17.1 V - ensures minimal loading on DC bias rails during normal operation |
| Junction Temp Range | –65 °C to +185 °C - enables deployment in engine bay, transmission control, and ADAS modules |
Pinout & Package
Package: DO-220AA (SMP), ultra-low profile (1.0 mm typical height), matte tin-plated leads, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Reverse-biased terminal / high-side connection | Connected to protected line (e.g., CAN_H, LIN, sensor supply); color band marks this end |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, mechanical shock, and board-level reliability testing |
| MSL Level 1 rating | Allows unlimited floor life and reflow up to 260 °C peak without baking preconditioning |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
Applications
| Automotive Sensor Protection | Infotainment Power Rail |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients below absolute maximum ratings. Use Value: Clamps to ≤27.7 V at 14.4 A while maintaining <1 µA leakage at 17.1 V, preserving signal integrity and preventing ADC saturation or latch-up. | Use Scenario: Safeguarding 12 V power inputs to head unit processors, display drivers, and USB hubs against battery reversal and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters and LDOs. Use Value: Absorbs 400 W peak pulses without degradation, enabling robust front-end protection in compact infotainment PCB layouts with tight height constraints (1.0 mm max). |
| Body Control Module (BCM) | ADAS Camera Interface |
Use Scenario: Securing LIN bus lines and door actuator drive outputs against ESD and inductive switching spikes in vehicle body electronics. IC Role / Device Role / Timing Role: Point-of-load TVS on each LIN transceiver output and motor driver gate node. Use Value: Fast response (<1 ns) and low clamping voltage ensure LIN signal edges remain intact during 8 kV contact ESD events per ISO 10605. | Use Scenario: Protecting MIPI CSI-2 data lanes and camera power supply in surround-view and forward-facing ADAS cameras mounted near bumpers or grilles. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on 3.3 V or 5 V camera supply and differential data pairs. Use Value: With 1.0 µA leakage at 17.1 V and DO-220AA footprint, it avoids signal distortion while surviving under-hood thermal cycling to +125 °C ambient. |
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; 20 V VBR min/max 18.0–22.0 V; 400 W PPPM; higher profile (2.79 mm) | Less suitable for ultra-low-height automotive modules; same clamping (32.4 V @ 12.3 A) | Choose SMAJ20A only if board height >2.5 mm is acceptable and DO-214AC placement infrastructure exists. |
| TPSMD20A | DO-214AB package; identical VBR (19.0–21.0 V); 400 W PPPM; AEC-Q101 qualified; 2.3 mm height | Higher mounting height limits use in space-constrained ADAS or sensor modules | Prefer TPSMP20AHE3/84A when PCB stack height is constrained to ≤1.1 mm and automated placement yield is critical. |
Compared with SMAJ20A and TPSMD20A, the TPSMP20AHE3/84A delivers equivalent surge protection performance in a 1.0 mm profile-enabling integration into next-generation automotive modules where vertical space is limited and AEC-Q101 compliance is mandatory.
Availability
TPSMP20AHE3/84A is available at Aetrix Electronics and suitable for automotive sensor interfaces, infotainment power rails, and body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMP20AHE3/84A 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The TPSMP series belongs to Vishay's eSMP™ family of ultra-low-profile TVS diodes engineered specifically for automotive electronics demanding AEC-Q101 qualification, high surge robustness, and minimal PCB real estate consumption.
FAQ
What is the breakdown voltage range of the TPSMP20AHE3/84A?
The TPSMP20AHE3/84A has a specified breakdown voltage (VBR) range of 19.0 V to 21.0 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent clamping initiation across production lots and temperature extremes, supporting reliable overvoltage protection in automotive 12 V systems where nominal supply may vary between 9 V and 16 V.
Is the TPSMP20AHE3/84A suitable for bidirectional transient suppression?
No, the TPSMP20AHE3/84A is a unidirectional TVS diode, intended for DC-biased circuits where reverse polarity is not expected. It features a single PN junction with cathode marked by a color band. For bidirectional protection (e.g., AC lines or differential buses), a dedicated bidirectional device such as TPSMP20AHM3/84A would be required-not the TPSMP20AHE3/84A.
Does the TPSMP20AHE3/84A meet automotive qualification standards?
Yes, the TPSMP20AHE3/84A is explicitly AEC-Q101 qualified, as confirmed in Vishay document 88471. It undergoes rigorous stress testing-including temperature cycling, mechanical shock, and board-level reliability-to ensure suitability for under-hood and safety-critical automotive applications such as engine control, ADAS, and body electronics.
What is the maximum clamping voltage of the TPSMP20AHE3/84A under surge conditions?
The TPSMP20AHE3/84A exhibits a maximum clamping voltage (VC) of 27.7 V at 14.4 A peak pulse current using the standard 10/1000 µs waveform. This value is measured at TA = 25 °C with 5.0 × 5.0 mm copper pads per terminal, and represents the upper voltage limit imposed on protected circuitry during worst-case surge events defined in ISO 7637-2.
What packaging format is used for the TPSMP20AHE3/84A?
The TPSMP20AHE3/84A is supplied in 7-inch plastic tape and reel format with a base quantity of 3000 units, designated by the "84A" package code. The "HE3" suffix indicates RoHS-compliant, high-reliability, automotive-grade construction with matte tin-plated leads compliant to J-STD-002 and JESD22-B102 solderability standards.
TPSMP20AHE3/84A 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP20AHE3/84A FAQ
1.How can I place an order for TPSMP20AHE3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP20AHE3/84A 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 TPSMP20AHE3/84A reliable?
The price and inventory of TPSMP20AHE3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP20AHE3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP20AHE3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP20AHE3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP20AHE3/84A?
TPSMP20AHE3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP20AHE3/84A 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 TPSMP20AHE3/84A?
For technical support, including TPSMP20AHE3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP20AHE3/84A requirements.
6.How does Aetrix verify that TPSMP20AHE3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP20AHE3/84A 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 TPSMP20AHE3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP20AHE3/84A?
All TPSMP20AHE3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP20AHE3/84A, 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 TPSMP20AHE3/84A part is unused and in its original packaging.
Return procedure for TPSMP20AHE3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP20AHE3/84A Tags
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