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Vishay General Semiconductor - Diodes Division TPSMP39AHM3_A/H
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- Part No.:
- TPSMP39AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP39AHM3_A/H.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,039
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Product details
Overview
TPSMP39AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMP (DO-220AA) package, designed for high-reliability automotive and industrial overvoltage protection. It features a 37.1 V minimum breakdown voltage (VBR), 33.3 V stand-off voltage (VWM), 53.9 V clamping voltage at 7.4 A peak pulse current, 400 W peak pulse power rating, and AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the TPSMP39AHM3_A/H datasheet, TPSMP39AHM3_A/H pinout, TPSMP39AHM3_A/H application, or TPSMP39AHM3_A/H equivalent, this page delivers verified electrical specs, mechanical dimensions, junction temperature limits up to +185 °C, and real-world use cases in automotive sensor line protection and power rail surge suppression.
Technical Context
The TPSMP39AHM3_A/H operates as a unidirectional silicon avalanche diode with passivated anisotropic rectifier technology, enabling fast response time (<1 ns) and low incremental surge resistance. Its junction passivation supports stable operation at TJ = 185 °C, meeting stringent automotive reliability requirements.
Designed for surface-mount placement on FR-4 PCBs with 5.0 mm × 5.0 mm copper pads per terminal, it delivers 400 W peak pulse power (10/1000 μs waveform) while maintaining a low profile of 1.0 mm typical height and MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V - defines precise avalanche initiation threshold for predictable clamping onset |
| VWM | 33.3 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 53.9 V @ 7.4 A - clamping voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 400 W - peak pulse power handling capacity under standardized surge conditions |
| TJ max. | +185 °C - enables deployment in high-temperature engine compartments without derating |
| IFSM | 40 A - surge current tolerance for 10 ms half-sine wave, supporting load dump immunity |
| Package | SMP (DO-220AA) - compact 2-pin SMD outline with 2.60 mm × 1.35 mm footprint and 1.0 mm height |
Pinout & Package
TPSMP39AHM3_A/H uses a 2-terminal SMP (DO-220AA) package: anode and cathode are arranged linearly with cathode identified by a color band. The package is optimized for automated pick-and-place and reflow soldering per J-STD-020 (MSL Level 1, 260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side return path | Provides low-impedance path to ground during transient events when cathode is held at higher potential |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., sensor supply or signal trace) | Defines polarity-sensitive clamping node-reverse-biased during normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| Junction passivated anisotropic rectifier | Ensures stable VBR over lifetime and reduces parameter drift under thermal stress |
| 185 °C junction rating | Enables direct placement near heat sources (e.g., ECUs, motor drivers) without external thermal derating |
| Low-profile SMP package | 1.0 mm height allows integration into space-constrained modules such as ADAS camera housings or battery management sensors |
| Halogen-free, RoHS-compliant | Meets automotive environmental compliance standards (JESD201 Class 2 whisker resistance, UL 94 V-0 molding compound) |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ISO 7637-2 load dump and ESD events in vehicle body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients within nanoseconds to prevent latch-up or damage to 3.3 V/5 V interface ICs. Use Value: With 33.3 V VWM, it avoids false triggering on nominal 24 V supply rails while clamping to 53.9 V to keep downstream ICs below absolute maximum ratings. | Use Scenario: Safeguarding 24 V DC input stages of programmable logic controllers (PLCs) and motor drives against induced surges from relay switching or lightning-induced coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, coordinated with upstream fuses and downstream DC-DC converters. Use Value: 400 W PPPM and 7.4 A IPPM provide robust immunity to 10/1000 μs surges common in factory floor environments without requiring oversized heatsinking. |
| Automotive Lighting Systems | Consumer Appliance Motor Control |
Use Scenario: Suppressing inductive kickback from LED driver FETs and solenoid coils in headlamp and interior lighting modules subjected to repeated switching cycles. IC Role / Device Role / Timing Role: Fast-response TVS placed across coil windings or MOSFET drain-source to absorb stored energy and limit voltage overshoot. Use Value: Sub-1 ns response time and low incremental surge resistance minimize voltage spikes that could degrade LED driver ICs or cause electromagnetic interference. | Use Scenario: Protecting microcontroller I/O pins and gate drivers in washing machine and HVAC blower motor control boards exposed to motor commutation noise and power line disturbances. IC Role / Device Role / Timing Role: Secondary-level protection on low-voltage control lines (e.g., PWM inputs, feedback signals) tied to 5 V or 12 V rails. Use Value: Compact SMP package allows placement directly at connector or IC pin, reducing loop inductance and improving clamping effectiveness versus larger DO-214 packages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | DO-214AA package; 36 V VWM, 58.1 V VC @ 6.9 A; lower PPPM (600 W but larger thermal mass) | Larger footprint (4.5 mm × 3.9 mm) and 2.3 mm height limit board density in tight layouts | Preferred where higher clamping margin is acceptable and board space permits larger package |
| TPSMA6.8A | DO-214AC package; 6.8 V VBR, 11.5 V VC @ 23.8 A; rated for lower voltage rails only | Not suitable for 24 V systems due to 5.8 V VWM; lacks AEC-Q101 certification | Select only for 3.3 V/5 V consumer applications where automotive qualification is unnecessary |
Compared with SMBJ36A and TPSMA6.8A, the TPSMP39AHM3_A/H offers superior board-area efficiency (2.6 mm × 1.35 mm), guaranteed AEC-Q101 compliance, and optimized clamping performance for 24 V automotive systems-making it the preferred choice where space, reliability, and system voltage alignment are critical.
Availability
TPSMP39AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power rail clamping, and lighting system surge suppression requiring stable component supply across production lifecycles.
Supply support for TPSMP39AHM3_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, MOSFETs, and optoelectronics with emphasis on high-reliability, high-efficiency solutions.
The TPSMP39AHM3_A/H belongs to Vishay's PAR® (Protection and Regulation) family of high-power-density TVS diodes, engineered specifically for automotive-grade transient suppression in harsh thermal and electrical environments.
FAQ
What is the maximum junction temperature rating for the TPSMP39AHM3_A/H?
The TPSMP39AHM3_A/H has a maximum junction temperature (TJ) rating of +185 °C, validated per AEC-Q101 stress tests. This enables reliable operation in under-hood automotive applications where ambient temperatures exceed 125 °C. The device maintains specified VBR and clamping performance across its full temperature range, and thermal derating curves are provided in the official Vishay datasheet (Document Number: 88471).
Is the TPSMP39AHM3_A/H compatible with lead-free reflow soldering processes?
Yes, the TPSMP39AHM3_A/H is qualified for lead-free reflow soldering with a maximum peak temperature of 260 °C, meeting J-STD-020 Moisture Sensitivity Level (MSL) 1 requirements. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 solderability standards, and the HM3 suffix confirms JESD 201 Class 2 whisker resistance-ensuring long-term interconnect reliability in automotive production.
Does the TPSMP39AHM3_A/H meet automotive qualification standards?
Yes, the TPSMP39AHM3_A/H is AEC-Q101 qualified, confirming compliance with rigorous automotive stress tests including temperature cycling, high-temperature operating life, and mechanical shock. It is categorized as automotive grade per Vishay documentation and intended for use in safety-critical and mission-relevant systems such as engine control units, ADAS sensors, and body electronics where failure modes must be rigorously controlled.
What is the clamping voltage of the TPSMP39AHM3_A/H at its rated peak pulse current?
The TPSMP39AHM3_A/H has a maximum clamping voltage (VC) of 53.9 V at its rated peak pulse current (IPPM) of 7.4 A, measured under the standard 10/1000 μs waveform. This value ensures protected circuits remain below their absolute maximum voltage ratings during surge events, and is confirmed in the Electrical Characteristics table of the Vishay datasheet (Rev. 25-Apr-2022, Doc. #88471).
How does the SMP (DO-220AA) package of the TPSMP39AHM3_A/H compare to traditional SMB/SMA packages in terms of board space?
The SMP (DO-220AA) package of the TPSMP39AHM3_A/H measures 2.60 mm × 1.35 mm with a 1.0 mm height-reducing board area by ~45 % compared to DO-214AA (SMB) and ~60 % versus DO-214AC (SMA). Its compact footprint and low profile enable high-density routing in modern automotive modules, and the design eliminates the need for additional keep-out zones required by taller packages.
TPSMP39AHM3_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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 7.4A
- 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)
TPSMP39AHM3_A/H FAQ
1.How can I place an order for TPSMP39AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP39AHM3_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 TPSMP39AHM3_A/H reliable?
The price and inventory of TPSMP39AHM3_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 TPSMP39AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMP39AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP39AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP39AHM3_A/H?
TPSMP39AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP39AHM3_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 TPSMP39AHM3_A/H?
For technical support, including TPSMP39AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP39AHM3_A/H requirements.
6.How does Aetrix verify that TPSMP39AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMP39AHM3_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 TPSMP39AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMP39AHM3_A/H?
All TPSMP39AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP39AHM3_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 TPSMP39AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMP39AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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