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Vishay General Semiconductor - Diodes Division TPSMP33AHM3_A/H
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- Part No.:
- TPSMP33AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP33AHM3_A/H.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:1,750
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Product details
Overview
TPSMP33AHM3_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 31.4 V to 34.7 V breakdown voltage (VBR), 45.7 V clamping voltage (VC) at 8.8 A peak pulse current, 400 W peak pulse power (10/1000 µs), 185 °C maximum junction temperature, and SMP (DO-220AA) package with 1.0 mm typical height.
For engineers reviewing the TPSMP33AHM3_A/H datasheet, TPSMP33AHM3_A/H pinout, TPSMP33AHM3_A/H application, or TPSMP33AHM3_A/H equivalent, key selection criteria include unidirectional clamping performance, AEC-Q101 qualification, low-profile surface-mount compatibility, and robust surge handling in sensor interface and power rail protection circuits.
Technical Context
The TPSMP33AHM3_A/H uses passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance, enabling precise clamping during ESD and lightning-induced transients. Its unidirectional configuration supports DC-biased signal and power lines where reverse conduction must be blocked.
Rated for TJ = −65 °C to +185 °C and qualified to AEC-Q101, it operates reliably under automotive thermal cycling and humidity exposure. The SMP (DO-220AA) package delivers high power density with MSL Level 1 moisture sensitivity and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V - defines minimum and maximum voltage at which device enters avalanche breakdown under 1 mA test current |
| VWM | 28.2 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 45.7 V at 8.8 A - clamping voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 400 W - peak pulse power handling capability, supporting high-energy transients per JEDEC standards |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-ambient industrial settings |
| Package | SMP (DO-220AA) - ultra-low-profile SMD package (1.0 mm typical height) compatible with automated placement and reflow |
Pinout & Package
TPSMP33AHM3_A/H is a two-terminal unidirectional TVS diode in the SMP (DO-220AA) package. Polarity is marked by a cathode band on the body; the cathode terminal connects to the protected line's higher potential side during clamping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or common return path; completes clamping loop when transient exceeds VBR |
| Cathode | Protected line input | Connected to the signal or power line requiring overvoltage protection; carries full surge current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| 185 °C junction rating | Supports sustained operation in engine control units, ADAS modules, and other high-thermal-load locations |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without preconditioning or baking requirements |
| Low profile (1.0 mm typical height) | Reduces board stack height and improves airflow in dense automotive ECUs and industrial controllers |
| Halogen-free, RoHS-compliant | Meets global environmental compliance mandates without compromising surge performance or thermal stability |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients while preserving DC bias integrity. Use Value: Limits clamped voltage to ≤45.7 V during 8.8 A surges, preventing damage to 3.3 V/5 V interface ICs rated for ≤50 V absolute maximum. | Use Scenario: Safeguarding 24 V DC input rails in programmable logic controllers (PLCs) and motor drives against inductive switching spikes and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage suppression element across input terminals, absorbing up to 400 W of transient energy. Use Value: Maintains system uptime by preventing latch-up or permanent failure in upstream DC-DC converters subjected to repetitive 10/1000 µs transients. |
| Consumer USB Port Protection | Medical Equipment Signal Line Guarding |
Use Scenario: Shielding USB 2.0 data lines and VBUS in portable medical monitors and diagnostic handhelds from ESD events per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline on differential pairs and power lines to divert ESD current away from PHY ICs. Use Value: Achieves sub-1 ns response with <1 μA leakage at 28.2 V, ensuring signal integrity and zero false triggers during normal operation. | Use Scenario: Protecting analog front-end inputs (e.g., ECG, EEG amplifiers) in Class II medical devices from electrostatic discharge and defibrillator-induced transients. IC Role / Device Role / Timing Role: Isolation-stage TVS providing reinforced insulation barrier between patient-connected circuitry and internal digital processing. Use Value: Complies with IEC 60601-1 creepage/clearance requirements via DO-220AA package geometry and 185 °C thermal margin for long-term reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | Lower PPPM (400 W same), but higher VC (53.3 V @ 7.5 A); SMA package (2.3 mm height) | Less suitable for space-constrained automotive modules due to taller profile and reduced thermal derating margin | Select TPSMP33AHM3_A/H when board height ≤1.0 mm and TJ > 150 °C operation is required |
| TPSMA6.8A | Same family, lower VBR (6.45–7.14 V); identical SMP package and AEC-Q101 qualification | Designed for 5 V rail protection; not interchangeable for 24–32 V systems without redesign | Choose TPSMP33AHM3_A/H specifically for 28.2 V stand-off and 45.7 V clamping in 32 V nominal systems |
Compared with SMAJ33A and TPSMA6.8A, the TPSMP33AHM3_A/H delivers superior power density in a 1.0 mm profile, tighter VBR tolerance (±4.9 %), and validated 185 °C operation-making it optimal for next-generation automotive and industrial designs where thermal headroom and board real estate are constrained.
Availability
TPSMP33AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC power inputs, and medical analog signal conditioning requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMP33AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The TPSMP33AHM3_A/H belongs to Vishay's PAR® (Protection Advanced Rectifier) series, engineered for high-power-density transient suppression in harsh-environment applications including automotive powertrain, ADAS, and industrial automation.
FAQ
What is the exact breakdown voltage range for TPSMP33AHM3_A/H?
The TPSMP33AHM3_A/H has a guaranteed breakdown voltage (VBR) range of 31.4 V to 34.7 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining for 28.2 V stand-off applications.
Is TPSMP33AHM3_A/H qualified for automotive use?
Yes, TPSMP33AHM3_A/H is AEC-Q101 qualified and rated for TJ = −65 °C to +185 °C. It meets automotive reliability requirements including temperature cycling, humidity bias, and mechanical shock, making it suitable for engine control units, body electronics, and ADAS subsystems.
What is the clamping voltage of TPSMP33AHM3_A/H under surge conditions?
The TPSMP33AHM3_A/H clamps to a maximum of 45.7 V at 8.8 A peak pulse current (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
Does TPSMP33AHM3_A/H have a halogen-free and RoHS-compliant construction?
Yes, TPSMP33AHM3_A/H carries the HM3 suffix, indicating halogen-free molding compound, RoHS compliance, and qualification to JESD201 Class 2 whisker resistance. Its matte tin-plated leads meet solderability standards J-STD-002 and JESD 22-B102.
What package type does TPSMP33AHM3_A/H use, and what are its key mechanical attributes?
TPSMP33AHM3_A/H uses the SMP (DO-220AA) package: a low-profile SMD outline measuring 3.61 mm × 2.18 mm × 1.0 mm typical height, with cathode band marking and MSL Level 1 rating (peak reflow 260 °C). Its compact size supports high-density PCB layouts in automotive and industrial modules.
TPSMP33AHM3_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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 8.8A
- 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)
TPSMP33AHM3_A/H FAQ
1.How can I place an order for TPSMP33AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP33AHM3_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 TPSMP33AHM3_A/H reliable?
The price and inventory of TPSMP33AHM3_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 TPSMP33AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMP33AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP33AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP33AHM3_A/H?
TPSMP33AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP33AHM3_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 TPSMP33AHM3_A/H?
For technical support, including TPSMP33AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP33AHM3_A/H requirements.
6.How does Aetrix verify that TPSMP33AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMP33AHM3_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 TPSMP33AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMP33AHM3_A/H?
All TPSMP33AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP33AHM3_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 TPSMP33AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMP33AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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