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Vishay General Semiconductor - Diodes Division TPSMP33A-E3/84A
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- Part No.:
- TPSMP33A-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP33A-E3/84A.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,972
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Product details
Overview
TPSMP33A-E3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade overvoltage protection. It features a breakdown voltage range of 31.4 V to 34.7 V at 1 mA test current, clamps up to 45.7 V at 8.8 A peak pulse current, and delivers 400 W peak pulse power with 1.0 W steady-state power dissipation - used to protect sensor signal lines and drive transistors in engine control units.
For engineers reviewing the TPSMP33A-E3/84A datasheet, TPSMP33A-E3/84A pinout, TPSMP33A-E3/84A application, or TPSMP33A-E3/84A equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C max junction temperature, low-profile 1.0 mm height, and 1.0 µA reverse leakage at 28.2 V standoff voltage.
Technical Context
This TVS diode employs patented PAR oxide passivated chip construction for stable clamping under repetitive surge stress. Its unidirectional configuration supports DC-biased signal line protection with fast response time and low incremental surge resistance.
Designed for surface-mount placement on PCBs with 5.0 × 5.0 mm copper pads per terminal, it meets MSL Level 1 per J-STD-020C and withstands solder dip at 260 °C for 40 seconds - confirming suitability for high-reliability automotive assembly processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage V(BR) | 31.4 V min to 34.7 V max at 1 mA - defines precise voltage threshold for avalanche conduction onset |
| Standoff Voltage VWM | 28.2 V - maximum continuous reverse operating voltage before significant leakage |
| Clamping Voltage VC | 45.7 V at 8.8 A IPPM - limits transient-induced voltage seen by protected IC or transistor |
| Peak Pulse Power PPPM | 400 W (10/1000 µs waveform) - determines surge energy handling capability |
| Reverse Leakage IR | 1.0 µA at VWM - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Junction Temperature Range | -65 °C to +185 °C - enables operation in under-hood automotive environments |
Pinout & Package
Package: DO-220AA (SMP), ultra-low-profile surface-mount case with matte tin-plated leads; cathode denoted by color band; epoxy meets UL-94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to lower-potential side of protected line; enables unidirectional clamping |
| Cathode | Current exit during forward conduction; avalanche node during reverse surge | Marked by color band; ties to higher-potential rail or signal reference for transient shunting |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.0 mm typical height) | Enables use in space-constrained automotive modules without compromising thermal pad area |
| Patented PAR oxide passivated chip | Delivers stable V(BR) and low clamping drift across temperature and lifetime stress |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients like load dump or ISO 7637-2 pulses |
| AEC-Q101 qualified (HE3 suffix variant) | Confirms reliability for automotive electronics - E3 suffix denotes commercial grade with same package and electrical specs |
Applications
| Engine Control Unit (ECU) Sensor Protection | Automotive Infotainment Display Interface |
|---|---|
Use Scenario: Protecting analog output lines from crankshaft position sensors exposed to alternator load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input. Use Value: Clamps 45.7 V at 8.8 A to prevent damage to 5 V-tolerant ADC inputs while maintaining <1.0 µA leakage at 28.2 V nominal operation. | Use Scenario: Safeguarding LVDS or FPD-Link III data lines connecting head unit to TFT display against ESD and cable discharge events. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential signal pair near connector. Use Value: 400 W peak pulse rating handles IEC 61000-4-2 contact discharge; 1.0 mm height avoids interference with flex circuit routing. |
| Body Control Module (BCM) Power Switch Output | ADAS Camera Power Rail Protection |
Use Scenario: Shielding MOSFET gate drivers controlling door lock actuators from inductive kickback during relay switching. IC Role / Device Role / Timing Role: TVS connected across driver output and ground to clamp negative-going spikes. Use Value: 185 °C max junction temperature supports under-dash mounting; 40 A IFSM withstands repeated surge events. | Use Scenario: Protecting 12 V camera power input from jump-start surges and battery reversal transients in surround-view systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main supply rail upstream of DC/DC converter. Use Value: 400 W PPPM sustains ISO 7637-2 Pulse 5a (load dump); DO-220AA footprint allows dense layout near connector. |
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-E3/5AT | DO-214AC (SMA) package; 33 V V(BR); 400 W PPPM; 1.0 µA IR at 26.7 V | Larger 2.3 mm height; lower thermal performance on same PCB pad size | Choose when legacy SMA footprint exists and height constraint is relaxed |
| TPSMA6.8A-Q | Automotive-grade (AEC-Q101); DO-214AC; 6.8 V V(BR); 400 W PPPM; 100 µA IR at 5.8 V | Lower voltage rating; not suitable for 28.2 V standoff requirement of TPSMP33A-E3/84A | Select only for sub-12 V signal line protection where clamping level must be <12 V |
Compared with SMAJ33A-E3/5AT and TPSMA6.8A-Q, the TPSMP33A-E3/84A provides identical 400 W surge capability but in a 1.0 mm low-profile DO-220AA package optimized for automated placement and high-density automotive PCBs - making it preferable where board space and thermal management under constrained height are critical.
Availability
TPSMP33A-E3/84A is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, body control modules, and infotainment displays requiring stable component supply across automotive production lifecycles.
Supply support for TPSMP33A-E3/84A 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, and protection devices with emphasis on automotive, industrial, and computing applications.
The TPSMP series was developed specifically for high-power-density, AEC-Q101-compliant transient suppression in modern automotive electronics - balancing low profile, high surge robustness, and process compatibility with lead-free reflow.
FAQ
What is the maximum clamping voltage of the TPSMP33A-E3/84A under standard test conditions?
The TPSMP33A-E3/84A has a maximum clamping voltage (VC) of 45.7 V when subjected to an 8.8 A peak pulse current with a 10/1000 µs waveform at TA = 25 °C. This value is measured per ANSI/IEEE C62.35 and reflects the upper limit of voltage imposed on protected circuitry during surge events - critical for ensuring compatibility with downstream 48 V-tolerant interfaces in automotive systems.
Is the TPSMP33A-E3/84A qualified for automotive applications?
Yes, the TPSMP33A-E3/84A carries the E3 suffix indicating commercial-grade qualification, and belongs to the TPSMP family which is fully AEC-Q101 qualified in its HE3 variant. While the E3 version shares identical electrical specifications and DO-220AA packaging with the HE3 part, it is widely deployed in automotive subsystems including ECUs and BCMs where full AEC-Q101 certification is not mandated but robust surge performance is required.
What does the "/84A" in TPSMP33A-E3/84A indicate?
The "/84A" suffix in TPSMP33A-E3/84A specifies the preferred package code per Vishay's ordering nomenclature, corresponding to a 7-inch diameter plastic tape-and-reel delivery format containing 3000 units. This packaging supports high-speed pick-and-place assembly and is compatible with standard SMT feeders used in automotive electronics manufacturing lines.
How does the DO-220AA package of the TPSMP33A-E3/84A compare thermally to DO-214AC?
The DO-220AA (SMP) package of the TPSMP33A-E3/84A offers superior thermal performance versus DO-214AC due to its larger copper pad interface area and optimized internal thermal path - enabling higher sustained power dissipation on equivalent PCB layouts. With 5.0 × 5.0 mm copper pads per terminal, it achieves better heat spreading than the narrower DO-214AC footprint, supporting reliable operation at 185 °C junction temperature.
Can the TPSMP33A-E3/84A be used in bidirectional configurations?
No, the TPSMP33A-E3/84A is strictly unidirectional and must be oriented with cathode toward the higher-potential side of the protected line. Bidirectional protection requires two devices in series opposition or a dedicated bidirectional TVS such as the SMBJ33CA. Using TPSMP33A-E3/84A in reverse polarity will result in forward conduction and failure under normal operating voltage.
TPSMP33A-E3/84A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP33A-E3/84A FAQ
1.How can I place an order for TPSMP33A-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP33A-E3/84A 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 TPSMP33A-E3/84A reliable?
The price and inventory of TPSMP33A-E3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP33A-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP33A-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP33A-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP33A-E3/84A?
TPSMP33A-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP33A-E3/84A 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 TPSMP33A-E3/84A?
For technical support, including TPSMP33A-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP33A-E3/84A requirements.
6.How does Aetrix verify that TPSMP33A-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP33A-E3/84A 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 TPSMP33A-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP33A-E3/84A?
All TPSMP33A-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP33A-E3/84A, 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 TPSMP33A-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP33A-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP33A-E3/84A Tags
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