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Vishay General Semiconductor - Diodes Division TPSMP20HM3/84A
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- Part No.:
- TPSMP20HM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP20HM3/84A.pdf
- Description:
- TVS DIODE 16.2VWM 29.1VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,525
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Product details
Overview
TPSMP20HM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of sensitive electronics. It features a 18.0 V to 22.0 V breakdown voltage range (VBR), 400 W peak pulse power (PPPM), 13.7 A peak pulse current (IPPM), and clamps at ≤29.1 V under surge conditions - ideal for automotive sensor line and microcontroller I/O protection.
For engineers reviewing the TPSMP20HM3/84A datasheet, TPSMP20HM3/84A pinout, TPSMP20HM3/84A application, or TPSMP20HM3/84A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low-profile 1.0 mm height, and MSL Level 1 reflow compatibility - all critical for automotive-grade PCB-level ESD and surge immunity design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced transients (IEC 61000-4-5). Its unidirectional configuration provides forward conduction capability with 2.5 V max forward voltage at 25 A.
Rated for operation from –65 °C to +185 °C and qualified to AEC-Q101, the TPSMP20HM3/84A supports automotive under-hood and infotainment applications where thermal robustness and long-term reliability under cyclic stress are mandatory. The DO-220AA package delivers high power density with minimal board area footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 18.0 V / 22.0 V - defines precise clamping onset threshold for reliable overvoltage detection before downstream IC damage |
| VWM | 16.2 V - maximum continuous reverse operating voltage; ensures no leakage or false triggering during normal 12 V automotive rail operation |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform; sustains high-energy surges without failure in harsh environments |
| IPPM | 13.7 A - peak pulse current capacity; determines survivability against ISO 7637-2 Pulse 1/2a/3a transients |
| VC @ IPPM | ≤29.1 V - clamping voltage under full surge; guarantees protected circuit remains below safe absolute maximum ratings |
| TJ max | +185 °C - extended junction temperature rating enables placement near heat sources in engine control units and ADAS modules |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm height), halogen-free, RoHS-compliant, and AEC-Q101 qualified surface-mount package |
Pinout & Package
DO-220AA (SMP) package: single-axis, two-terminal surface-mount device with cathode indicated by color band; matte tin-plated leads 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 / transient return path | Connected to protected signal or power line; conducts surge current toward ground when clamped |
| Cathode | Reference terminal / clamping node | Marked with color band; tied to system ground or low-impedance reference plane to establish clamping voltage baseline |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR tolerance (±5 % for TPSMP20A variant) and low leakage (<1 μA at VWM) across temperature |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JEDEC standards |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning; eliminates moisture-related popcorning risk |
| 1.0 mm typical height | Reduces board-level airflow obstruction and enables dense layout in space-constrained modules like camera ECUs and radar sensors |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD), improving protection margin for sub-30 V logic interfaces |
Applications
| Automotive Sensor Protection | Microcontroller I/O Clamping |
|---|---|
Use Scenario: Protecting LIN bus, analog sensor outputs (e.g., pressure, temperature), and CAN stub lines in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before reaching ASIC or MCU input pins. Use Value: With VC ≤29.1 V and 400 W PPPM, TPSMP20HM3/84A prevents latch-up or gate oxide damage in 3.3 V/5 V tolerant inputs while surviving repeated 12 V system surges. | Use Scenario: Safeguarding GPIO, UART, SPI, and ADC inputs on automotive-grade MCUs (e.g., NXP S32K, Infineon AURIX) against ESD and coupling noise. IC Role / Device Role / Timing Role: Standoff protection device mounted directly at connector or header interface to shunt fast transients before propagation into silicon. Use Value: 13.7 A IPPM and <1 ns response ensure clamping occurs within first nanosecond of ESD event (IEC 61000-4-2 ±8 kV contact), preserving signal integrity and functional safety compliance. |
| Infotainment Power Rail Protection | ADAS Camera Module Interface |
Use Scenario: Guarding 5 V or 12 V power rails feeding display controllers, audio amplifiers, and USB hubs in head unit designs subject to battery reverse connection and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-rail, cathode-to-ground to absorb positive-going surges without forward conduction during normal operation. Use Value: 2.5 V VF at 25 A allows safe handling of reverse-current fault conditions, while 185 °C TJ rating ensures stability during prolonged thermal soak in enclosed dash environments. | Use Scenario: Shielding FPD-Link III or GMSL serial video interfaces between camera and domain controller from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline on differential pairs to suppress common-mode transients without degrading 3 Gbps signal integrity. Use Value: DO-220AA's minimal parasitic capacitance (typ. 100 pF at 0 V, <50 pF at VWM) avoids jitter or eye closure, maintaining pixel-perfect video transmission in rear-view and surround-view systems. |
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-E3/61 | DO-214AC (SMA) package; 20 V VBR, 400 W PPPM, but 1.9 mm height and lower thermal mass | Larger footprint and higher profile limit use in ultra-thin modules; not AEC-Q101 qualified | Acceptable for industrial or consumer applications where automotive qualification and low height are not required |
| TPSMD20H | DO-218AB package; same VBR/PPPM specs but 2.5 mm height and higher IFSM (100 A) | Better surge endurance for high-energy load dump; unsuitable for tight Z-height constraints in camera or radar housings | Preferred where higher single-pulse robustness is prioritized over board space and profile |
Compared with SMAJ20A-E3/61 and TPSMD20H, the TPSMP20HM3/84A uniquely balances AEC-Q101 compliance, 1.0 mm profile, and 400 W surge capability - making it optimal for next-generation automotive modules where space, reliability, and qualification are co-constrained.
Availability
TPSMP20HM3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, microcontroller I/O clamping, and infotainment power rail protection requiring stable component supply across production lifecycles.
Supply support for TPSMP20HM3/84A 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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability and automotive-grade performance.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes engineered specifically for AEC-Q101-compliant automotive electronics needing compact, thermally robust overvoltage protection.
FAQ
What is the breakdown voltage range of the TPSMP20HM3/84A?
The TPSMP20HM3/84A has a specified breakdown voltage (VBR) range of 18.0 V minimum to 22.0 V maximum at 1.0 mA test current. This range ensures consistent clamping behavior across manufacturing lots and temperature extremes, supporting reliable protection design for 12 V automotive systems where nominal rail voltages can vary between 9 V and 16 V during cranking and charging.
Is the TPSMP20HM3/84A AEC-Q101 qualified?
Yes, the TPSMP20HM3/84A is explicitly AEC-Q101 qualified as confirmed in the Vishay datasheet revision 22-Jul-16 (Document Number: 88471). This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing - validating its suitability for automotive powertrain, body, and ADAS applications where long-term field reliability is mandatory.
What package type does the TPSMP20HM3/84A use?
The TPSMP20HM3/84A uses the DO-220AA (SMP) surface-mount package - a low-profile, halogen-free, RoHS-compliant case with 1.0 mm typical height, matte tin-plated terminals, and UL 94 V-0 rated molding compound. Its compact dimensions (2.67 mm × 1.15 mm) and MSL Level 1 rating enable direct integration into automated SMT lines without special handling or baking requirements.
How does the clamping voltage of the TPSMP20HM3/84A compare to its breakdown voltage?
The TPSMP20HM3/84A clamps at ≤29.1 V when subjected to its rated 13.7 A peak pulse current (IPPM), which is approximately 1.3× its minimum breakdown voltage (18.0 V). This controlled voltage overshoot ensures protected circuits remain safely below their absolute maximum ratings while maintaining sufficient margin above normal operating voltage (e.g., 16.2 V VWM) to avoid false triggering.
Can the TPSMP20HM3/84A be used in bidirectional configurations?
No, the TPSMP20HM3/84A is strictly unidirectional, as stated in the Vishay datasheet under FEATURES. It conducts only in reverse-bias avalanche mode and provides no symmetrical clamping for negative transients. For bidirectional protection, a separate device such as the TPSMP20CA or dual-diode array must be selected - the TPSMP20HM3/84A must be oriented with cathode toward ground to function correctly.
TPSMP20HM3/84A 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):
- 16.2V
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- 29.1V
- Current - Peak Pulse (10/1000µs):
- 28.8A
- 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)
TPSMP20HM3/84A FAQ
1.How can I place an order for TPSMP20HM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP20HM3/84A 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 TPSMP20HM3/84A reliable?
The price and inventory of TPSMP20HM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP20HM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP20HM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP20HM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP20HM3/84A?
TPSMP20HM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP20HM3/84A 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 TPSMP20HM3/84A?
For technical support, including TPSMP20HM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP20HM3/84A requirements.
6.How does Aetrix verify that TPSMP20HM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP20HM3/84A 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 TPSMP20HM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP20HM3/84A?
All TPSMP20HM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP20HM3/84A, 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 TPSMP20HM3/84A part is unused and in its original packaging.
Return procedure for TPSMP20HM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP20HM3/84A Tags
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