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Vishay General Semiconductor - Diodes Division TPSMP22HE3/84A
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- Part No.:
- TPSMP22HE3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP22HE3/84A.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,282
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Product details
Overview
TPSMP22HE3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade circuit protection. It features 19.8 V to 24.2 V breakdown voltage (VBR), 31.9 V clamping voltage (VC) at 12.5 A peak pulse current, and 400 W peak pulse power rating for 10/1000 µs waveform - deployed to safeguard sensor signal lines and drive transistors in harsh automotive environments.
For engineers reviewing the TPSMP22HE3/84A datasheet, TPSMP22HE3/84A pinout, TPSMP22HE3/84A application, or TPSMP22HE3/84A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.0 mm height, 0.092 %/°C VBR temperature coefficient, and RoHS-compliant matte tin-plated leads meeting J-STD-002 solderability standards.
Technical Context
This TVS diode uses patented PAR oxide-passivated chip construction to achieve excellent clamping capability and low incremental surge resistance. Its unidirectional configuration enables precise reverse-biased overvoltage protection with fast response time and minimal leakage (≤1 µA at 17.8 V stand-off voltage).
Rated for operation from −65 °C to +185 °C junction temperature, it meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive reliability. The device is mounted on PCB with 5.0 × 5.0 mm copper pads per terminal to sustain 400 W peak pulse power under standardized 10/1000 µs surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 19.8 V / 24.2 V - ensures reliable triggering above system operating voltage while accommodating manufacturing tolerance |
| VC @ IPPM | 31.9 V at 12.5 A - limits downstream voltage stress during transients to protect sensitive ICs and transistors |
| PPPM | 400 W (10/1000 µs) - provides robust surge immunity for automotive load-dump and ISO 7637-2 pulse 5a events |
| VWM | 17.8 V - sets maximum continuous reverse working voltage without significant leakage current |
| IR @ VWM | ≤1.0 µA - minimizes standby power loss and avoids false triggering in low-power sensor interfaces |
| TJ max. | +185 °C - supports under-hood placement in engine control units and ADAS modules |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm typical height) enabling compact layout in space-constrained automotive ECUs |
Pinout & Package
DO-220AA (SMP) surface-mount package with cathode indicated by color band; terminals are matte tin-plated for compatibility with lead-free reflow processes per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse battery connection) |
| Cathode | Clamping reference node | Marked with color band; tied to higher-potential rail (e.g., VBAT) to clamp reverse transients to VC |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable VBR and low leakage across temperature and lifetime, critical for AEC-Q101 compliance |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns, eliminating bake requirements pre-assembly |
| 0.092 %/°C VBR tempco | Minimizes drift in clamping threshold over automotive ambient range (−40 °C to +125 °C), ensuring consistent protection margin |
| 1.0 mm typical height | Reduces board footprint and Z-height in stacked modules such as radar front-ends and camera ECU housings |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, enhancing long-term reliability in vibration-prone automotive applications |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before signal conditioning stage. Use Value: Limits voltage excursion to ≤31.9 V during 10/1000 µs surges, preserving ADC integrity and preventing latch-up in 3.3 V or 5 V MCU inputs. |
Use Scenario: Safeguarding 12 V supply rails in engine control modules against ISO 7637-2 Pulse 5a (load dump) events up to 400 W. IC Role / Device Role / Timing Role: Primary clamping device parallel to bulk input capacitor, activated within nanoseconds to divert surge energy away from DC-DC converters and logic ICs. Use Value: Withstands 12.5 A peak pulse current at 31.9 V clamping, maintaining rail stability below 33 V to avoid brown-out resets in safety-critical firmware. |
| ADAS Camera Module Interface | Body Control Module (BCM) LIN Bus Line |
Use Scenario: Shielding high-speed image data lines (e.g., MIPI CSI-2) from ESD and coupled transients in rear-view and surround-view camera assemblies. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector entry point to suppress sub-100 ns ESD events without distorting signal edges. Use Value: Junction capacitance <100 pF (typ.) at zero bias ensures <0.5 dB insertion loss at 1 GHz, preserving video signal integrity. |
Use Scenario: Protecting LIN transceiver I/O pins from battery reverse connection and jump-start induced transients in door modules and lighting controllers. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN bus and ground, triggered only during negative-going surges exceeding −17.8 V. Use Value: Stand-off voltage of 17.8 V allows normal LIN signaling (±40 V common-mode) while clamping reverse faults to safe levels below transceiver absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/5AT | DO-214AC (SMA) package; 22 V nominal VBR; 32.4 V VC @ 12.3 A; 400 W PPPM; not AEC-Q101 qualified | Lacks automotive qualification; higher profile (2.29 mm); suitable for industrial/commercial designs without automotive reliability mandates | Select when cost sensitivity outweighs AEC-Q101 requirement and board height permits SMA footprint |
| TPSMP22AHE3/84A | Higher VBR range (20.9–23.1 V); same DO-220AA package; identical 400 W rating; AEC-Q101 qualified | Narrower VBR tolerance improves precision in systems requiring tighter clamping margin control | Choose for enhanced VBR consistency where ±5 % variation is unacceptable, e.g., in regulated 24 V subsystems |
Compared with SMAJ22A-E3/5AT, TPSMP22HE3/84A offers automotive qualification and 1.0 mm height but shares identical power handling; versus TPSMP22AHE3/84A, it trades tighter VBR tolerance for broader voltage coverage, making it preferable where system tolerances accommodate ±20 % VBR spread.
Availability
TPSMP22HE3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, engine control unit (ECU) power input, and ADAS camera module interface applications requiring stable component supply, AEC-Q101 compliance, and low-profile packaging.
Supply support for TPSMP22HE3/84A 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 TPSMP22HE3/84A belongs to Vishay's eSMP™ Series of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant automotive circuit protection with emphasis on space-constrained, high-surge environments.
FAQ
What is the breakdown voltage range for TPSMP22HE3/84A?
The TPSMP22HE3/84A has a specified breakdown voltage (VBR) range of 19.8 V minimum to 24.2 V maximum at 1 mA test current. This range reflects manufacturing tolerance and ensures reliable triggering above nominal 22 V system rails while maintaining sufficient margin against false activation during normal operation.
Is TPSMP22HE3/84A qualified for automotive use?
Yes, TPSMP22HE3/84A is AEC-Q101 qualified and designated as high-reliability/automotive grade (HE3 suffix). It meets stringent automotive requirements including temperature cycling, humidity testing, and mechanical shock, making it suitable for under-hood and safety-critical electronic control units.
What is the clamping voltage of TPSMP22HE3/84A at rated surge current?
The TPSMP22HE3/84A clamps to a maximum of 31.9 V at 12.5 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value defines the upper voltage limit imposed on protected circuits during transient events and is critical for ensuring downstream ICs remain within absolute maximum ratings.
Does TPSMP22HE3/84A have a unidirectional or bidirectional configuration?
TPSMP22HE3/84A is a unidirectional TVS diode, meaning it provides overvoltage protection only in the reverse direction (cathode-to-anode). Its polarity is marked by a color band on the cathode end, and it is intended for applications where forward conduction must be avoided except during specific fault conditions like reverse battery connection.
What package type does TPSMP22HE3/84A use, and what are its key mechanical attributes?
TPSMP22HE3/84A uses the DO-220AA (SMP) surface-mount package, characterized by a typical height of 1.0 mm, 5.0 × 5.0 mm copper pad recommendation per terminal, and matte tin-plated leads compliant with J-STD-002 solderability standards. Its low profile supports dense PCB layouts in automotive ECUs and ADAS modules.
TPSMP22HE3/84A 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):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 12.5A
- 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)
TPSMP22HE3/84A FAQ
1.How can I place an order for TPSMP22HE3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP22HE3/84A 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 TPSMP22HE3/84A reliable?
The price and inventory of TPSMP22HE3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP22HE3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP22HE3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP22HE3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP22HE3/84A?
TPSMP22HE3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP22HE3/84A 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 TPSMP22HE3/84A?
For technical support, including TPSMP22HE3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP22HE3/84A requirements.
6.How does Aetrix verify that TPSMP22HE3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP22HE3/84A 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 TPSMP22HE3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP22HE3/84A?
All TPSMP22HE3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP22HE3/84A, 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 TPSMP22HE3/84A part is unused and in its original packaging.
Return procedure for TPSMP22HE3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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