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Vishay General Semiconductor - Diodes Division TPSMP27AHM3_A/H
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- Part No.:
- TPSMP27AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP27AHM3_A/H.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,645
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Product details
Overview
TPSMP27AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the PAR® family, designed for high-reliability automotive and industrial overvoltage 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 (10/1000 µs), and operates up to +185 °C junction temperature. It protects signal lines and drive transistors in automotive ECUs.
For engineers reviewing the TPSMP27AHM3_A/H datasheet, TPSMP27AHM3_A/H pinout, TPSMP27AHM3_A/H application, or TPSMP27AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, SMP (DO-220AA) package with 1.0 mm profile, unidirectional polarity, low incremental surge resistance, and MSL Level 1 reflow compatibility.
Technical Context
The TPSMP27AHM3_A/H employs passivated anisotropic rectifier technology optimized for high-power-density transient suppression. Its junction passivation enables stable operation at TJ = 185 °C, supporting under-hood automotive environments where thermal robustness is critical.
It delivers fast response time and excellent clamping performance with low incremental surge resistance, ensuring minimal voltage overshoot during ESD or load-dump events. The device is rated for 10/1000 µs waveform testing per IEC 61000-4-5 and meets JESD22-B102 whisker resistance Class 2.
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 at 25 °C |
| VC @ IPPM | 37.5 V - Clamped voltage seen by protected IC during 10.7 A transient, limiting stress on downstream components |
| PPPM | 400 W - Peak pulse power handling capability for 10/1000 µs surges, suitable for ISO 7637-2 Load Dump Type 5a |
| IFSM | 40 A - Surge current rating for 10 ms half-sine wave, supporting motor driver and relay coil flyback protection |
| TJ max | +185 °C - Enables placement near heat sources in automotive modules without derating concerns |
| Package | SMP (DO-220AA) - 1.0 mm height, halogen-free, RoHS-compliant, AEC-Q101 qualified surface-mount package |
Pinout & Package
SMP (DO-220AA) package: ultra-low-profile surface-mount case with cathode band marking; dimensions 3.61 mm × 2.18 mm × 1.0 mm (L × W × H); matte tin-plated terminals compliant with J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side reference in unidirectional TVS configuration |
| Cathode | Current exit point during forward conduction; marked with color band | Connected to protected line (e.g., CAN_H, LIN, sensor supply) to clamp transients to VWM + ΔV |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per stress test requirements |
| Junction passivation | Enhances long-term stability of VBR and leakage under high-temperature bias conditions (TJ = 150 °C) |
| MSL Level 1 | Rated for peak reflow temperatures up to 260 °C without preconditioning, enabling standard SMT assembly |
| Low profile (1.0 mm height) | Minimizes board space and Z-height constraints in compact modules such as ADAS camera housings and body control units |
| Unidirectional polarity | Optimized for DC-biased signal or power lines where reverse conduction must be blocked during normal operation |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control modules exposed to ISO 16750-2 jump-start and load-dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp surges before they reach sensitive analog front-end circuitry. Use Value: Limits clamped voltage to ≤37.5 V at 10.7 A, preventing latch-up or damage to 3.3 V or 5 V ADC inputs while maintaining signal integrity below VWM = 23.1 V. | Use Scenario: Safeguarding gate drive signals and feedback lines in 24 V industrial motor inverters subject to IGBT switching noise and inductive kickback. IC Role / Device Role / Timing Role: TVS mounted at PCB edge connectors and gate driver IC outputs to absorb fast-rising transients (<1 ns rise time) induced by high dV/dt switching. Use Value: Fast response time and low incremental surge resistance ensure sub-40 V clamping during 10/1000 µs surges, preserving gate oxide integrity and preventing false turn-on of power devices. |
| Automotive Body Control Unit (BCU) | Automotive LIN Bus Line Protection |
Use Scenario: Overvoltage protection for 12 V supply rails and switch inputs in door modules, seat controllers, and lighting control units subjected to battery reversal and load dump. IC Role / Device Role / Timing Role: Primary TVS on main VBAT input rail and local 5 V regulator inputs to absorb energy from 40 V/400 ms load dump pulses per ISO 7637-2 Pulse 5a. Use Value: 400 W peak pulse power rating and 40 A IFSM enable single-device compliance with automotive load dump immunity without parallel staging. | Use Scenario: Protecting LIN transceiver pins (LIN_H/L) against ESD (IEC 61000-4-2 ±8 kV contact) and coupled transients in vehicle wiring harnesses. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN_H and ground to shunt ESD current away from transceiver ESD structures while maintaining bus DC bias. Use Value: Low leakage (<1 µA at VWM) avoids signal distortion on 12 V biased LIN bus; 1.0 mm height allows placement adjacent to connector footprints without interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower PPPM (400 W → 400 W same), but higher VC (45.4 V vs. 37.5 V), larger SMA package (2.2 mm height) | Less effective clamping margin for 24 V systems; not AEC-Q101 qualified | Select TPSMP27AHM3_A/H when automotive qualification, lower clamping, or space-constrained layouts are required. |
| TPSMA6.8A | Same family but lower VBR (6.45–7.14 V); PPPM = 250 W; smaller SMA package | Designed for 5 V logic rails, not 24 V automotive supply lines | Choose TPSMP27AHM3_A/H for 24 V systems requiring ≥400 W surge handling and AEC-Q101 compliance. |
Compared with SMAJ28A and TPSMA6.8A, the TPSMP27AHM3_A/H provides superior clamping performance at 24 V nominal systems, guaranteed automotive qualification, and a 1.0 mm low-profile package-enabling tighter layout integration and higher thermal reliability in under-hood modules.
Availability
TPSMP27AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, and sensor interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMP27AHM3_A/H 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, TVS, MOSFETs, and optoelectronics with emphasis on reliability, power density, and automotive-grade validation.
The TPSMP series belongs to Vishay's high-power-density PAR® TVS platform, engineered specifically for AEC-Q101-compliant transient protection in 12 V and 24 V automotive subsystems-including body electronics, powertrain, and ADAS sensor interfaces.
FAQ
What is the maximum clamping voltage of the TPSMP27AHM3_A/H at its rated peak pulse current?
The TPSMP27AHM3_A/H has a maximum clamping voltage (VC) of 37.5 V at its rated peak pulse current (IPPM) of 10.7 A under 10/1000 µs waveform conditions. This value ensures protected downstream components-such as microcontrollers or transceivers-experience no more than 37.5 V during surge events, well within safe operating limits for 24 V system interfaces. The TPSMP27AHM3_A/H achieves this with low incremental surge resistance and optimized junction passivation.
Is the TPSMP27AHM3_A/H qualified for automotive applications?
Yes, the TPSMP27AHM3_A/H is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature. It meets automotive reliability requirements including temperature cycling, humidity bias, and mechanical shock testing. Its HM3 suffix confirms halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance-making the TPSMP27AHM3_A/H suitable for engine control units, body control modules, and ADAS sensor protection.
What package type does the TPSMP27AHM3_A/H use, and what are its key mechanical advantages?
The TPSMP27AHM3_A/H uses the SMP (DO-220AA) package: a surface-mount case measuring 3.61 mm × 2.18 mm × 1.0 mm with a cathode band marking. Its 1.0 mm height enables ultra-low-profile placement in space-constrained modules like camera ECU housings. The matte tin-plated terminals comply with J-STD-002 solderability and JESD22-B102 whisker resistance Class 2, and it is rated MSL Level 1 for lead-free reflow up to 260 °C.
How does the TPSMP27AHM3_A/H compare to standard SMA-package TVS diodes in terms of surge handling?
The TPSMP27AHM3_A/H delivers 400 W peak pulse power (10/1000 µs) in a 1.0 mm height package-matching or exceeding many SMA devices while occupying less board area and offering better thermal performance due to optimized die attachment. Unlike standard SMA parts, the TPSMP27AHM3_A/H is AEC-Q101 qualified and features junction passivation for stable VBR at high temperature, making it more robust for automotive under-hood deployment than generic SMA alternatives.
What is the reverse leakage current specification for the TPSMP27AHM3_A/H at its stand-off voltage?
At its stand-off voltage (VWM) of 23.1 V and ambient temperature of 25 °C, the TPSMP27AHM3_A/H exhibits a maximum reverse leakage current (IR) of 1.0 µA. At elevated junction temperature (TJ = 150 °C), leakage remains ≤5.0 µA-ensuring minimal power loss and signal distortion in always-on automotive circuits. This low leakage supports reliable operation in battery-sensitive applications such as LIN bus nodes and sensor wake-up circuits.
TPSMP27AHM3_A/H 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/H FAQ
1.How can I place an order for TPSMP27AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP27AHM3_A/H 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/H reliable?
The price and inventory of TPSMP27AHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for TPSMP27AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP27AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP27AHM3_A/H?
TPSMP27AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP27AHM3_A/H 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/H?
For technical support, including TPSMP27AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP27AHM3_A/H requirements.
6.How does Aetrix verify that TPSMP27AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMP27AHM3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of TPSMP27AHM3_A/H?
All TPSMP27AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP27AHM3_A/H, 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/H part is unused and in its original packaging.
Return procedure for TPSMP27AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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