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Vishay General Semiconductor - Diodes Division TPSMP33AHM3/84A
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- Part No.:
- TPSMP33AHM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP33AHM3/84A.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,791
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Product details
Overview
TPSMP33AHM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability automotive and industrial overvoltage protection. It features a 31.4 V to 34.7 V breakdown voltage (VBR), 28.2 V stand-off voltage (VWM), 45.7 V clamping voltage (VC) at 8.8 A peak pulse current, and 400 W peak pulse power rating with 185 °C junction temperature capability.
For engineers reviewing the TPSMP33AHM3/84A datasheet, TPSMP33AHM3/84A pinout, TPSMP33AHM3/84A application, or TPSMP33AHM3/84A equivalent, key selection criteria include AEC-Q101 qualification, MSL Level 1 moisture sensitivity, low-profile 1.0 mm height, uni-directional polarity, and compatibility with automated SMT placement on FR-4 PCBs with 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response time and low incremental surge resistance. Its unidirectional configuration enables robust protection of DC power rails and signal lines against ESD, lightning-induced surges, and load-dump transients in automotive ECUs and industrial controllers.
The device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker test requirements. Its DO-220AA package supports high power density with minimal board footprint while maintaining thermal performance under repetitive surge conditions per IEC 61000-4-5 and ISO 7637-2 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V - defines reliable turn-on threshold for transient suppression without false triggering during normal operation |
| VWM | 28.2 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA, ensuring stable DC rail protection |
| VC @ IPPM | 45.7 V at 8.8 A - clamped voltage during 10/1000 μs surge, limiting downstream IC stress to safe levels |
| PPPM | 400 W - peak pulse power handling capacity for short-duration transients up to 1000 μs |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm typical height), halogen-free, RoHS-compliant, AEC-Q101 qualified |
| Polarity | Uni-directional - cathode marked by color band; suitable for DC supply line protection only |
Pinout & Package
TPSMP33AHM3/84A is housed in a two-terminal DO-220AA (SMP) surface-mount package with matte tin-plated leads. The cathode is identified by a color band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side connection | Connected to protected circuit node (e.g., battery feed or signal source); conducts forward current during clamping |
| Cathode | Output/Ground reference | Marked by color band; ties to system ground or low-impedance return path to divert surge energy safely |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60 % RH; compatible with standard reflow profiles up to 260 °C peak |
| Low-profile height | 1.0 mm typical - enables use in space-constrained modules such as ADAS sensors and motor control boards |
| Passivated anisotropic rectifier | Optimized junction passivation reduces leakage drift and improves long-term stability under thermal stress |
| High surge current capability | 8.8 A peak pulse current (IPPM) with <1 ns response time ensures effective suppression of ESD and fast transients |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units (ECUs) and body control modules (BCMs) against ISO 7637-2 load dump pulses. IC Role / Device Role / Timing Role: Uni-directional TVS placed between battery input and LDO/regulator input to clamp transients before they reach sensitive power management ICs. Use Value: Limits clamped voltage to 45.7 V, preventing damage to downstream 36 V-rated regulators and enabling compliance with automotive OEM surge immunity requirements. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: Placed at connector interface to absorb sub-100 ns ESD strikes per IEC 61000-4-2 Level 4 (15 kV air/8 kV contact). Use Value: Delivers <1 ns response and 45.7 V clamping to preserve signal integrity and prevent latch-up in precision ADC front-ends. |
| Consumer Device USB Port Protection | Motor Drive Gate Driver Protection |
Use Scenario: Safeguarding USB Type-C VBUS lines in portable medical devices and smart home hubs against hot-plug transients and ESD. IC Role / Device Role / Timing Role: Installed between USB connector and USB PD controller to limit voltage overshoot during plug insertion and disconnect events. Use Value: With 28.2 V stand-off and 45.7 V clamping, it avoids interference with 20 V USB PD operation while suppressing >1 kV transients. | Use Scenario: Protecting high-side gate driver inputs in BLDC motor inverters from Miller-induced voltage spikes during switching transitions. IC Role / Device Role / Timing Role: Mounted directly at gate driver IC input pins to clamp coupling noise from power stage dv/dt. Use Value: Fast response and low clamping voltage ensure gate driver logic remains within safe operating area during 100+ V/ns switching events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5AT | DO-214AC (SMA) package; 33 V nominal VBR; 38.7 V VC at 9.2 A; 400 W PPPM; same AEC-Q101 qualification | Larger footprint (2.5 mm height) and lower thermal efficiency on small pads; less suitable for ultra-thin modules | Select when legacy SMA layout exists or higher surge margin is needed with larger pad area |
| TPSMA6.8A-Q | DO-214AC package; lower VBR (6.45–7.14 V); 11.3 V VC; 300 W PPPM; AEC-Q101 qualified | Designed for 5 V/3.3 V rail protection; not rated for 24 V systems requiring ≥28 V VWM | Use only for low-voltage digital interfaces; unsuitable as direct replacement for TPSMP33AHM3/84A in 24 V applications |
Compared with SMAJ33A-E3/5AT and TPSMA6.8A-Q, the TPSMP33AHM3/84A offers superior power density and thermal performance in compact automotive modules due to its DO-220AA package, while maintaining identical surge ratings and AEC-Q101 compliance-making it optimal for next-generation space-constrained ECU designs.
Availability
TPSMP33AHM3/84A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor nodes, and consumer USB power delivery systems requiring stable component supply and long-term lifecycle support.
Supply support for TPSMP33AHM3/84A 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 and automotive-grade qualification.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes engineered specifically for AEC-Q101-compliant automotive and harsh-environment industrial applications where low profile, high surge capability, and thermal robustness are critical.
FAQ
What is the breakdown voltage range of the TPSMP33AHM3/84A?
The TPSMP33AHM3/84A has a specified breakdown voltage (VBR) range of 31.4 V to 34.7 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent turn-on behavior across production lots while accommodating process variation without compromising protection margin in 24 V automotive systems.
Is the TPSMP33AHM3/84A suitable for automotive applications?
Yes, the TPSMP33AHM3/84A is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature. Its DO-220AA package meets MSL Level 1, and its 400 W peak pulse power rating supports ISO 7637-2 load dump and IEC 61000-4-5 surge immunity requirements-making it fully suitable for under-hood and chassis-mounted automotive modules.
What is the clamping voltage of the TPSMP33AHM3/84A at its rated peak pulse current?
The TPSMP33AHM3/84A exhibits a maximum clamping voltage (VC) of 45.7 V at 8.8 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is guaranteed across temperature and ensures protected circuits remain below critical overvoltage thresholds during standardized surge events.
Does the TPSMP33AHM3/84A have a bidirectional configuration?
No, the TPSMP33AHM3/84A is strictly unidirectional, as confirmed by its datasheet designation "A" suffix and explicit "Uni-direction only" feature listing. It must be oriented with the cathode band toward ground; using it in AC or bipolar signal paths would result in forward conduction and failure.
What packaging format is used for the TPSMP33AHM3/84A?
The TPSMP33AHM3/84A is supplied in 7-inch plastic tape and reel format with a base quantity of 3000 units per reel (package code 84A). The tape complies with EIA-481-D standards and supports high-speed pick-and-place assembly with verified coplanarity and lead integrity per J-STD-002 and JESD22-B102.
TPSMP33AHM3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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)
TPSMP33AHM3/84A FAQ
1.How can I place an order for TPSMP33AHM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP33AHM3/84A 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 TPSMP33AHM3/84A reliable?
The price and inventory of TPSMP33AHM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP33AHM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP33AHM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP33AHM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP33AHM3/84A?
TPSMP33AHM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP33AHM3/84A 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 TPSMP33AHM3/84A?
For technical support, including TPSMP33AHM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP33AHM3/84A requirements.
6.How does Aetrix verify that TPSMP33AHM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP33AHM3/84A 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 TPSMP33AHM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP33AHM3/84A?
All TPSMP33AHM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP33AHM3/84A, 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 TPSMP33AHM3/84A part is unused and in its original packaging.
Return procedure for TPSMP33AHM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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