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Vishay General Semiconductor - Diodes Division TPSMP39AHM3_A/I
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- Part No.:
- TPSMP39AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP39AHM3_A/I.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,309
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Product details
Overview
TPSMP39AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the 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 (VC), 400 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the TPSMP39AHM3_A/I datasheet, TPSMP39AHM3_A/I pinout, TPSMP39AHM3_A/I application, or TPSMP39AHM3_A/I equivalent, this page delivers verified electrical parameters, mechanical dimensions, junction temperature limits (TJ = –65 °C to +185 °C), polarity marking (cathode band), and automotive-grade reliability context - all critical for ESD/surge protection design in sensor interfaces and power rails.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation, enabling stable clamping performance up to 185 °C junction temperature. Its unidirectional configuration provides low forward voltage (VF = 2.5 V at 25 A) and fast response time for transient suppression on DC power lines and signal paths.
The device operates within a 33.3 V reverse stand-off range and clamps transients to ≤53.9 V at 7.4 A, delivering 400 W peak pulse power handling per 10/1000 µs waveform. It meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing, confirming suitability for lead-free reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V - defines reliable avalanche initiation threshold across temperature and production lot |
| VWM | 33.3 V - maximum continuous reverse voltage before leakage exceeds 1 μA, sets operating margin vs. system rail |
| VC @ IPPM | 53.9 V @ 7.4 A - clamping voltage during 10/1000 µs surge, determines protected IC's voltage stress limit |
| PPPM | 400 W - peak pulse power rating, enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| TJ max. | +185 °C - supports placement near hot components (e.g., power MOSFETs, engine control units) without derating |
| Package | SMP (DO-220AA) - ultra-low profile (1.0 mm height), 3.61 mm × 2.18 mm footprint, compatible with automated SMT placement |
| AEC-Q101 | Qualified - validated for automotive applications including powertrain, body control, and ADAS sensor modules |
Pinout & Package
TPSMP39AHM3_A/I uses the SMP (DO-220AA) surface-mount package: two-terminal, unidirectional configuration with cathode identified by a color band. The package has a nominal height of 1.0 mm, length of 3.61 mm, and width of 2.18 mm, optimized for space-constrained PCB layouts and high-density automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during positive transients when cathode is biased higher |
| Cathode | Avalanche clamping terminal | Marked with color band; connected to protected line (e.g., 3.3 V rail or CAN_H); initiates clamping when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Ensures stable VBR and low leakage (<1 μA at VWM) over lifetime and temperature cycling |
| 185 °C junction capability | Enables direct placement on high-temperature PCB zones without thermal derating or heatsinking |
| Low profile (1.0 mm height) | Reduces board stack height and improves mechanical robustness in vibration-prone automotive environments |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without moisture sensitivity concerns or pre-bake requirements |
| Halogen-free, RoHS-compliant, AEC-Q101 qualified | Meets automotive supply chain compliance mandates and environmental regulations for Tier 1 suppliers |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients to <54 V while maintaining <1 μA leakage at 33.3 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during ISO 7637-2 Pulse 1 (–150 V) and Pulse 2a (−100 V). | Use Scenario: Safeguarding 24 V DC input rails in programmable logic controllers (PLCs) and motor drives against surge events per IEC 61000-4-5 (4 kV line-earth). IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power entry, absorbing 400 W pulses with <1 ns response to protect downstream DC-DC converters and microcontrollers. Use Value: Limits rail overshoot to ≤54 V, preserving 36 V-rated input capacitors and preventing brownout resets in field-deployed equipment. |
| Automotive Body Control Unit (BCU) | Consumer Appliance Motor Driver Protection |
Use Scenario: Shielding door module microcontrollers and LED drivers from battery reverse connection and jump-start transients in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional TVS on VBAT-to-GND path, leveraging 40 A IFSM rating to survive repetitive 10 ms half-sine surges. Use Value: Withstands 12 V system faults up to 40 A surge without degradation, ensuring BCU functional safety over 15-year vehicle life. | Use Scenario: Protecting H-bridge gate drivers and current sense amplifiers in smart washing machine motor control boards from back-EMF spikes. IC Role / Device Role / Timing Role: Fast-clamping TVS on low-side FET source node and current shunt inputs, rated for 185 °C operation near heat-generating motors. Use Value: Maintains clamping integrity at elevated ambient temperatures (>105 °C), eliminating thermal runaway risk during extended spin cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A (Vishay) | DO-214AC (SMA) package; 36 V VWM, 58.1 V VC @ 6.9 A; 400 W PPPM; same AEC-Q101 grade | Larger footprint (4.5 mm × 2.7 mm) and 2.2 mm height; less suitable for ultra-thin modules | Select when board space allows larger package and legacy SMA footprints exist |
| TPSMA6.8A-Q (ON Semiconductor) | DO-214AC package; 6.8 V VWM, 11.2 V VC @ 32.1 A; 400 W PPPM; AEC-Q101 qualified | Lower voltage rating; not interchangeable for 33.3 V rail protection without redesign | Use only for sub-12 V systems requiring tighter clamping; not a drop-in replacement for TPSMP39AHM3_A/I |
Compared with SMAJ36A-E3/5A and TPSMA6.8A-Q, the TPSMP39AHM3_A/I offers identical 400 W surge capability but in a 30 % smaller footprint and 55 % lower profile - critical for next-gen automotive ECUs where Z-axis clearance and PCB real estate are constrained.
Availability
TPSMP39AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC power inputs, and body control unit protection requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant traceability.
Supply support for TPSMP39AHM3_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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The TPSMP series belongs to Vishay's PAR® (Protection and Regulation) family, engineered specifically for high-power-density transient suppression in harsh-environment automotive and industrial systems where thermal stability and compact packaging are mandatory.
FAQ
What is the maximum clamping voltage of the TPSMP39AHM3_A/I under standard test conditions?
The TPSMP39AHM3_A/I has a maximum clamping voltage (VC) of 53.9 V when subjected to its rated peak pulse current of 7.4 A using the 10/1000 µs waveform. This value is measured at TA = 25 °C and ensures protected circuitry remains below critical overvoltage thresholds during surge events. The TPSMP39AHM3_A/I maintains consistent clamping performance across its full operating temperature range due to its passivated junction design.
Is the TPSMP39AHM3_A/I suitable for use in automotive powertrain applications?
Yes, the TPSMP39AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive powertrain applications such as engine control units and transmission control modules. Its 400 W peak pulse power rating and robust construction meet ISO 7637-2 and ISO 16750-2 requirements. The TPSMP39AHM3_A/I is specifically designed for high-reliability deployment in these demanding environments.
What does the "HM3_A/I" suffix indicate in TPSMP39AHM3_A/I?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified SMP package variant; "A" is the revision code; "I" specifies the 13-inch tape-and-reel packaging format with a base quantity of 10,000 units. This distinguishes it from the "H" variant (7-inch reel, 3000 units). The TPSMP39AHM3_A/I is fully compatible with standard SMT pick-and-place equipment and lead-free reflow profiles.
How does the TPSMP39AHM3_A/I compare to standard SMA-package TVS diodes in terms of board space?
The TPSMP39AHM3_A/I uses the SMP (DO-220AA) package measuring 3.61 mm × 2.18 mm × 1.0 mm, offering ~30 % less footprint and ~55 % lower profile than DO-214AC (SMA) devices like SMAJ36A. This reduction directly translates to higher PCB density in multi-channel protection designs. The TPSMP39AHM3_A/I achieves equivalent 400 W surge capability in a significantly more compact form factor.
Does the TPSMP39AHM3_A/I require derating at elevated ambient temperatures?
Yes, the TPSMP39AHM3_A/I must be derated per Figure 2 in its datasheet: peak pulse power decreases linearly above TA = 25 °C, reaching ~70 % of rated 400 W at 100 °C ambient. However, its 185 °C TJmax allows operation at higher junction temperatures than conventional TVS diodes. Designers must calculate actual power dissipation using thermal resistance and layout data. The TPSMP39AHM3_A/I's thermal robustness simplifies thermal design in confined spaces.
TPSMP39AHM3_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):
- 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/I FAQ
1.How can I place an order for TPSMP39AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP39AHM3_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 TPSMP39AHM3_A/I reliable?
The price and inventory of TPSMP39AHM3_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 TPSMP39AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP39AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP39AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP39AHM3_A/I?
TPSMP39AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP39AHM3_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 TPSMP39AHM3_A/I?
For technical support, including TPSMP39AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP39AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP39AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP39AHM3_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 TPSMP39AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP39AHM3_A/I?
All TPSMP39AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP39AHM3_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 TPSMP39AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP39AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP39AHM3_A/I Tags
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