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Vishay General Semiconductor - Diodes Division TPSMP27HM3/84A
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- Part No.:
- TPSMP27HM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP27HM3/84A.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,110
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Product details
Overview
TPSMP27HM3/84A 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 24.3 V to 29.7 V breakdown voltage (VBR), 400 W peak pulse power (PPPM), 10.2 A peak pulse current (IPPM), and clamps to 39.1 V at rated surge - ideal for automotive sensor line and microcontroller I/O protection.
For engineers reviewing the TPSMP27HM3/84A datasheet, TPSMP27HM3/84A pinout, TPSMP27HM3/84A application, or TPSMP27HM3/84A 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 under-hood automotive and industrial PCB designs requiring robust ESD/surge immunity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective clamping during 10/1000 µs transients. Its unidirectional configuration supports DC-biased signal lines and power rails where reverse conduction must be blocked.
The device operates across -65 °C to +185 °C junction temperature range and is qualified to AEC-Q101, confirming suitability for automotive-grade applications. Its DO-220AA package delivers high power density with minimal board footprint and meets UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.3 V / 29.7 V - ensures reliable triggering above system operating voltage while avoiding false trips |
| VWM | 21.8 V - maximum continuous reverse stand-off voltage compatible with 24 V nominal automotive systems |
| VC @ IPPM | 39.1 V - clamping voltage limits protected IC stress during 10.2 A surge events |
| PPPM | 400 W - peak pulse power handling capability for IEC 61000-4-5 Level 3/4 surges |
| IFSM | 40 A - surge current rating for 10 ms half-sine wave, supporting load dump immunity |
| TJ max | +185 °C - enables placement near heat sources in engine control units and ADAS modules |
| Package | DO-220AA (SMP) - 1.0 mm typical height, 3.61 mm × 2.18 mm footprint, optimized for automated SMT assembly |
Pinout & Package
TPSMP27HM3/84A is a two-terminal unidirectional TVS diode in DO-220AA (SMP) surface-mount package. Polarity is marked by a cathode band on the case; the cathode terminal connects to the protected circuit's ground or return path, while the anode connects to the line being protected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/line side | Connected to signal or power line requiring transient suppression; conducts during forward surge events |
| Cathode | Return/ground side | Connected to system ground or low-impedance return path; defines unidirectional clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JESD22 standards |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without moisture-induced damage or popcorn effect |
| 185 °C maximum junction temperature | Supports operation in high-ambient environments such as powertrain and body control modules |
| Low-profile 1.0 mm height | Reduces board-level clearance constraints and improves airflow in stacked or enclosed assemblies |
| Halogen-free, RoHS-compliant construction | Meets global environmental compliance requirements for automotive and industrial OEM supply chains |
Applications
| Automotive Sensor Protection | Microcontroller I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between signal line and chassis ground to divert transients before reaching the transceiver input stage. Use Value: Limits voltage seen by downstream ICs to ≤39.1 V during 10.2 A surges, preserving signal integrity and preventing latch-up or permanent damage. | Use Scenario: Safeguarding GPIO, UART, SPI, and ADC inputs of automotive-grade MCUs (e.g., RH850, S32K) against ESD and coupling-induced spikes. IC Role / Device Role / Timing Role: Fast-response transient suppressor located at connector or connector-to-IC trace interface to absorb sub-ns ESD events per IEC 61000-4-2. Use Value: Clamps within nanoseconds to protect 3.3 V/5 V logic inputs without affecting normal signal rise/fall times due to low capacitance and minimal leakage. |
| Industrial Power Rail Protection | Consumer Device DC Input Protection |
Use Scenario: Guarding 24 V DC power inputs of PLC I/O modules and motor drivers against inductive switching transients and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail, coordinated with upstream fuses and downstream LDOs to ensure system-level fault containment. Use Value: Handles 400 W peak pulse power and 40 A surge current, enabling robust protection without derating at elevated ambient temperatures up to 125 °C. | Use Scenario: Securing USB-C and barrel jack DC inputs of smart home hubs and portable medical devices against user-handling ESD and adapter surge events. IC Role / Device Role / Timing Role: First-line transient suppressor placed immediately after input connector to shunt energy before it propagates into PMIC or battery management circuits. Use Value: Low 1.0 µA leakage at 21.8 V and 10.2 A IPPM rating provide reliable protection without compromising standby current or thermal performance in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | DO-214AC (SMA) package; 24 V VWM, 38.9 V VC @ 7.2 A; lower PPPM (400 W same, but lower IPPM) | Larger footprint (4.5 mm × 2.7 mm), 2.2 mm height - less suitable for ultra-thin automotive modules | Select when legacy SMA layout exists and height constraint is relaxed; verify thermal pad area matches DO-220AA copper requirements. |
| TPSMA6.8A | Same DO-220AA family but 6.8 V variant; VBR = 6.45–7.14 V, VC = 10.5 V @ 500 A - not voltage-compatible for 24 V systems | Designed for 5 V logic rails; unsuitable for 24 V automotive power or signal lines | Only consider for redesign targeting lower-voltage domains; not a drop-in replacement for TPSMP27HM3/84A. |
Compared with SMAJ24A and TPSMA6.8A, the TPSMP27HM3/84A offers superior power density (1.0 mm height vs. 2.2 mm), tighter VBR tolerance (±10 % vs. ±5 % for SMAJ24A), and guaranteed AEC-Q101 qualification - making it the preferred choice for new automotive designs requiring space-constrained, high-reliability transient suppression.
Availability
TPSMP27HM3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, microcontroller I/O hardening, and industrial 24 V power rail safeguarding requiring stable component supply across extended production lifecycles.
Supply support for TPSMP27HM3/84A 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, power efficiency, and automotive-grade qualification.
The TPSMP series belongs to Vishay's eSMP® high-power-density TVS platform, engineered specifically for AEC-Q101-compliant transient suppression in space-constrained automotive and industrial environments where thermal robustness and surge immunity are mission-critical.
FAQ
What is the breakdown voltage range of the TPSMP27HM3/84A?
The TPSMP27HM3/84A has a specified breakdown voltage (VBR) range of 24.3 V to 29.7 V at 1 mA test current. This range ensures consistent triggering above 24 V system rails while maintaining margin against false conduction during normal operation - a key parameter verified per ANSI/IEEE C62.35 and documented in Vishay's datasheet revision 22-Jul-16.
Is the TPSMP27HM3/84A suitable for automotive applications?
Yes, the TPSMP27HM3/84A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and powertrain applications. Its DO-220AA package meets MSL Level 1 reflow requirements, and its 400 W peak pulse power supports ISO 7637-2 and IEC 61000-4-5 compliance testing - all confirmed in Vishay's official documentation for TPSMP27HM3/84A.
What is the clamping voltage of the TPSMP27HM3/84A at its rated surge current?
The TPSMP27HM3/84A clamps to a maximum of 39.1 V at its rated peak pulse current (IPPM) of 10.2 A under 10/1000 µs waveform conditions. This value is measured per standard test methods and defines the upper voltage limit imposed on protected circuitry during transient events - a critical design parameter for ensuring downstream IC survival.
Does the TPSMP27HM3/84A have polarity marking, and how is it oriented on the PCB?
Yes, the TPSMP27HM3/84A features a cathode band printed on the case surface, indicating the cathode terminal. During PCB layout, the cathode must connect to the system ground or return path, and the anode to the line being protected - correct orientation is essential for unidirectional clamping functionality and verified in Vishay's mechanical drawings for DO-220AA packaging.
What is the maximum steady-state power dissipation of the TPSMP27HM3/84A?
The TPSMP27HM3/84A has a maximum steady-state power dissipation (PD) of 2.5 W when mounted on an infinite heatsink at 75 °C ambient. In real-world PCB layouts with 5.0 mm × 5.0 mm copper pads per terminal, derating applies per Vishay's Fig. 6 - this thermal specification directly impacts long-term reliability in continuous overvoltage scenarios and is part of the official TPSMP27HM3/84A ratings table.
TPSMP27HM3/84A 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):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 10.2A
- 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)
TPSMP27HM3/84A FAQ
1.How can I place an order for TPSMP27HM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP27HM3/84A 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 TPSMP27HM3/84A reliable?
The price and inventory of TPSMP27HM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP27HM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP27HM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP27HM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP27HM3/84A?
TPSMP27HM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP27HM3/84A 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 TPSMP27HM3/84A?
For technical support, including TPSMP27HM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP27HM3/84A requirements.
6.How does Aetrix verify that TPSMP27HM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP27HM3/84A 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 TPSMP27HM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP27HM3/84A?
All TPSMP27HM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP27HM3/84A, 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 TPSMP27HM3/84A part is unused and in its original packaging.
Return procedure for TPSMP27HM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP27HM3/84A Tags
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