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Vishay General Semiconductor - Diodes Division TPSMP27AHM3_A/I
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- Part No.:
- TPSMP27AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP27AHM3_A/I.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,747
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Product details
Overview
TPSMP27AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the PAR® family, designed for high-reliability automotive and industrial surge protection. It features a 25.7 V to 28.4 V breakdown voltage (VBR), 23.1 V stand-off voltage (VWM), 37.5 V clamping voltage at 10.7 A peak pulse current, 400 W peak pulse power rating, and AEC-Q101 qualification - deployed to protect sensor signal lines and drive transistors in engine control units.
For engineers reviewing the TPSMP27AHM3_A/I datasheet, TPSMP27AHM3_A/I pinout, TPSMP27AHM3_A/I application, or TPSMP27AHM3_A/I equivalent, key selection criteria include unidirectional polarity, DO-220AA (SMP) package compatibility, 185 °C junction temperature capability, low-profile 1.0 mm height, and MSL Level 1 reflow suitability for automated SMT assembly.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional configuration provides robust clamping during positive-going transients while maintaining low leakage (≤1 μA at VWM) across -65 °C to +185 °C operating range.
The device is rated for 10/1000 μs waveform surges per IEC 61000-4-5, with derated PPPM above 25 °C ambient and validated performance on FR-4 PCBs using 5.0 mm × 5.0 mm copper pads per terminal - meeting automotive-grade reliability requirements without external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V - ensures reliable triggering above system operating voltage while avoiding false trips |
| VWM | 23.1 V - maximum continuous reverse voltage before leakage exceeds 1 μA, matching 24 V automotive rail systems |
| VC @ IPPM | 37.5 V - clamps transient energy to safe levels for downstream 30 V-rated ICs and MOSFETs |
| PPPM | 400 W - sustains high-energy ESD and load-dump pulses common in vehicle electronics |
| TJ max. | +185 °C - enables under-hood deployment without thermal derating in engine compartments |
| Package | SMP (DO-220AA) - 1.0 mm profile supports ultra-thin PCB designs and high-density placement |
| AEC-Q101 | Qualified - certified for automotive electronic modules requiring zero field failures over lifetime |
Pinout & Package
TPSMP27AHM3_A/I is housed in the SMP (DO-220AA) surface-mount package: cathode-indicating band on one end, anode on the other, matte tin-plated terminals solderable per J-STD-002, and compliant with JESD201 Class 2 whisker resistance. Dimensions: 3.61 mm × 2.18 mm × 1.0 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line's ground or low-side return path for unidirectional clamping |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected signal/power line - absorbs positive transients by shunting to ground |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Reduces surface leakage and improves long-term stability in humid/high-temperature environments |
| MSL Level 1 | Enables single-pass reflow at 260 °C peak without moisture-induced popcorn failure |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| Halogen-free & RoHS-compliant | Meets automotive ELV Directive and global environmental compliance mandates for Tier 1 supply chains |
| 1.0 mm typical height | Supports mechanical clearance in compact ADAS camera modules and battery management systems |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and injector driver outputs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between signal line and chassis ground. Use Value: Clamps transients up to 37.5 V at 10.7 A, preserving 30 V-rated transceiver ICs and enabling AEC-Q101-compliant ECU certification. | Use Scenario: Safeguarding encoder feedback lines and gate driver inputs against switching noise and inductive kickback. IC Role / Device Role / Timing Role: Standoff protector on differential analog inputs of isolated ADCs and digital isolators. Use Value: Maintains <1 μA leakage at 23.1 V VWM, preventing signal offset drift while surviving 400 W surge events. |
| Automotive Camera Module | Consumer IoT Sensor Hub |
Use Scenario: Shielding MIPI CSI-2 data lanes from ESD and cable discharge events in rear-view cameras. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted directly at connector interface. Use Value: 1.0 mm profile allows placement adjacent to FPC connectors without interfering with lens housing; 185 °C rating supports under-hood thermal cycling. | Use Scenario: Securing I²C and UART lines connecting environmental sensors to MCU in smart home hubs. IC Role / Device Role / Timing Role: Primary ESD clamp on bidirectional communication buses. Use Value: 37.5 V clamping voltage prevents latch-up in 3.3 V/5 V logic interfaces while supporting automated pick-and-place with MSL Level 1 compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Higher VBR (26.6–29.4 V), lower PPPM (400 W same), but SMA package (2.5 mm height) | Less suitable for ultra-low-profile automotive modules due to 2.5× taller package | Select when board space permits larger footprint and legacy SMA layout exists |
| TPSMA6.8A | Same SMP family but lower VBR (6.45–7.14 V); not interchangeable for 24 V systems | Designed for 5 V/12 V rails - mismatched for 24 V signal line protection | Only consider for redesigns targeting lower-voltage domains; not drop-in replacement |
Compared with SMAJ28A and TPSMA6.8A, the TPSMP27AHM3_A/I delivers identical 400 W surge handling in a 1.0 mm profile with AEC-Q101 validation - making it the only option qualified for next-generation compact, high-temperature automotive electronics where height and qualification are non-negotiable.
Availability
TPSMP27AHM3_A/I is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, ADAS camera modules, and consumer IoT sensor hubs requiring stable component supply with full traceability and lifecycle continuity.
Supply support for TPSMP27AHM3_A/I 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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TPSMP27AHM3_A/I belongs to Vishay's PAR® (Protection Advanced Rectifier) series - engineered specifically for high-power-density transient suppression in space-constrained, thermally aggressive automotive and industrial environments.
FAQ
What is the breakdown voltage tolerance for TPSMP27AHM3_A/I?
The TPSMP27AHM3_A/I has a specified breakdown voltage (VBR) range of 25.7 V minimum to 28.4 V maximum at 1.0 mA test current, per Vishay Document Number 88471. This ±5% tolerance ensures consistent triggering behavior across production lots while accommodating thermal drift up to 185 °C junction temperature. The TPSMP27AHM3_A/I maintains this specification under standard JEDEC test conditions and is verified per AEC-Q101 stress requirements.
Is TPSMP27AHM3_A/I suitable for bidirectional transient protection?
No, the TPSMP27AHM3_A/I is strictly unidirectional - it clamps only positive transients relative to its cathode terminal. Its electrical characteristics table explicitly lists "Unidirectional" polarity, and no reverse-breakdown or symmetrical clamping data is provided. For bidirectional protection, engineers must use a dedicated bidirectional TVS like the SMBJ26CA or select a dual-diode array; the TPSMP27AHM3_A/I cannot be repurposed for AC or differential line protection.
What is the maximum clamping voltage of TPSMP27AHM3_A/I at its rated peak pulse current?
The TPSMP27AHM3_A/I exhibits a maximum clamping voltage (VC) of 37.5 V at its rated peak pulse current (IPPM) of 10.7 A, measured under standardized 10/1000 μs waveform conditions. This value is guaranteed across the full operating temperature range and forms the basis for downstream IC survivability analysis. The TPSMP27AHM3_A/I achieves this performance via low incremental surge resistance inherent to its passivated anisotropic rectifier structure.
Does TPSMP27AHM3_A/I require a heatsink for continuous power dissipation?
No, the TPSMP27AHM3_A/I is rated for 2.5 W steady-state power dissipation on an infinite heatsink at 75 °C ambient, but typical applications involve only transient suppression - not continuous conduction. Its 185 °C maximum junction temperature and low thermal resistance enable operation without external heatsinking on standard FR-4 PCBs with recommended 5.0 mm × 5.0 mm copper pads. The TPSMP27AHM3_A/I is not intended for DC power handling; sustained forward current must remain below IF = 1 A per datasheet limits.
How does the HM3_A/I suffix affect the specifications of TPSMP27AHM3_A/I?
"HM3" denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "A" is the revision code; "I" specifies 13-inch tape-and-reel packaging (10,000 units/reel). These suffixes do not alter electrical or thermal specifications - all performance parameters (VBR, VC, PPPM, TJ max.) match the base TPSMP27A family. The TPSMP27AHM3_A/I retains identical junction passivation, MSL Level 1 rating, and 1.0 mm profile regardless of reel size or revision code.
TPSMP27AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 10.7A
- 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)
TPSMP27AHM3_A/I FAQ
1.How can I place an order for TPSMP27AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP27AHM3_A/I 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 TPSMP27AHM3_A/I reliable?
The price and inventory of TPSMP27AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP27AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP27AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP27AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP27AHM3_A/I?
TPSMP27AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP27AHM3_A/I 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 TPSMP27AHM3_A/I?
For technical support, including TPSMP27AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP27AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP27AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP27AHM3_A/I 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 TPSMP27AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP27AHM3_A/I?
All TPSMP27AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP27AHM3_A/I, 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 TPSMP27AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP27AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP27AHM3_A/I Tags
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