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Vishay General Semiconductor - Diodes Division TPSMP33-E3/84A
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- Part No.:
- TPSMP33-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP33-E3/84A.pdf
- Description:
- TVS DIODE 26.8VWM 47.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,598
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Product details
Overview
TPSMP33-E3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-220AA (SMP) package, designed for automotive-grade surge protection with 33 V breakdown voltage (VBR = 29.7–36.3 V), 400 W peak pulse power (10/1000 µs), 8.4 A peak pulse current (IPPM), and 47.7 V clamping voltage (VC). It protects sensor signal lines and drive transistors in automotive ECUs.
For engineers reviewing the TPSMP33-E3/84A datasheet, TPSMP33-E3/84A pinout, TPSMP33-E3/84A application, or TPSMP33-E3/84A equivalent, key selection factors include its AEC-Q101-compliant high-reliability grade (E3 suffix), 1.0 mm profile, 185 °C max junction temperature, and low incremental surge resistance for robust ESD/transient immunity in space-constrained PCB layouts.
Technical Context
This TVS diode uses Vishay's patented PAR oxide passivated chip construction to achieve excellent clamping performance and fast response time (<1 ns). Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining low leakage (<1 µA at VWM = 26.8 V) and stable temperature coefficient (0.098 %/°C).
Rated for MSL Level 1 per J-STD-020C and solderable at 260 °C for 40 seconds, the device is optimized for automated placement on automotive PCBs with 5.0 × 5.0 mm copper pads per terminal - enabling reliable thermal dissipation under repetitive surge conditions up to IFSM = 40 A (10 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 29.7 V / 36.3 V - ensures reliable triggering above system operating voltage (26.8 V stand-off) without false trips |
| PPPM | 400 W - sustains 10/1000 µs surges common in ISO 7637-2 automotive load-dump and ISO 10605 ESD testing |
| VC @ IPPM | 47.7 V - limits protected IC voltage stress below typical 50 V absolute maximum ratings |
| IPPM | 8.4 A - delivers defined surge current handling with low incremental resistance for minimal voltage overshoot |
| TJ max. | +185 °C - supports operation in under-hood environments where ambient exceeds 125 °C |
| Package | DO-220AA (SMP) - 1.0 mm height enables ultra-thin designs; matte tin leads ensure J-STD-002B solderability |
Pinout & Package
DO-220AA (SMP) surface-mount package with cathode indicated by color band; terminals are anode and cathode only - no internal circuitry or additional pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line ground reference | Provides low-VF (2.5 V @ 25 A) path during surge clamp; must be routed to low-impedance ground plane |
| Cathode | Current exit point in forward bias; marked with color band | Connected to protected signal/power line; polarity-sensitive placement required to avoid reverse-bias failure |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| Very low profile (1.0 mm typical height) | Allows placement beneath connectors or in tight spacing zones without mechanical interference |
| MSL Level 1 rating | Eliminates pre-bake requirement before reflow, reducing manufacturing cost and process complexity |
| RoHS/WEEE compliant | Meets EU regulatory requirements for hazardous substances and end-of-life electronics recycling |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to ISO 16750-2 load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between sensor output and microcontroller ADC input. Use Value: Limits voltage excursion to ≤47.7 V during 400 W surges, preserving 12-bit ADC accuracy and preventing latch-up in downstream signal conditioning ICs. | Use Scenario: Safeguarding 12 V supply rail of engine control modules against battery reversal, alternator load dump, and inductive switching spikes. IC Role / Device Role / Timing Role: Primary surge suppression device mounted directly at ECU power entry point, upstream of DC/DC converter. Use Value: Absorbs 8.4 A peak pulses with <1 ns response, preventing brownout or reset events in MCU and CAN transceivers during harsh electrical environments. |
| Infotainment System USB Interface | Body Control Module (BCM) LIN Bus Line |
Use Scenario: Shielding USB 2.0 data lines (D+/D−) in head unit against ESD per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS pair (one per line) placed adjacent to USB connector, grounded via short trace. Use Value: Clamps ESD events to <47.7 V within nanoseconds while maintaining signal integrity - junction capacitance not specified but consistent with DO-220AA geometry for <3 pF typical. | Use Scenario: Protecting LIN bus transceivers from battery feed transients and electrostatic discharge in door modules and lighting nodes. IC Role / Device Role / Timing Role: Single unidirectional TVS on LIN bus line (dominant state referenced to battery), cathode tied to LIN line. Use Value: Withstands repeated 10/1000 µs surges up to 400 W without degradation, ensuring >10-year field reliability in 12 V automotive networks. |
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-E3/5A | DO-214AC (SMA) package; 33 V VBR, 400 W PPPM, but 1.9 mm height and 3.5 mm length - larger footprint | Less suitable for ultra-thin automotive modules; higher thermal resistance due to smaller pad area | Select when legacy SMA footprint compatibility is required and board height >1.9 mm is acceptable |
| TPSMP33A-E3/84A | Higher VBR range (31.4–34.7 V); tighter 5% tolerance vs. TPSMP33's 10%; identical DO-220AA package and 400 W rating | Better suited for systems requiring precise clamping threshold near 33 V nominal rails | Choose for improved VBR consistency in safety-critical subsystems where tighter parametric control is mandated |
Compared with SMAJ33A-E3/5A, TPSMP33-E3/84A offers 45% lower profile and superior thermal performance on 5×5 mm pads; versus TPSMP33A-E3/84A, it trades tighter VBR tolerance for broader margin against premature conduction in noisy 12 V systems.
Availability
TPSMP33-E3/84A is available at Aetrix Electronics and suitable for automotive electronic control units, sensor interface modules, and body electronics requiring stable component supply with AEC-Q101 qualification and RoHS compliance.
Supply support for TPSMP33-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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The TPSMP series was engineered specifically for AEC-Q101-compliant automotive transient suppression, emphasizing low-profile packaging, high surge robustness, and stable parametric performance across extended temperature ranges.
FAQ
What is the breakdown voltage range of the TPSMP33-E3/84A?
The TPSMP33-E3/84A has a guaranteed breakdown voltage (VBR) range of 29.7 V to 36.3 V at 10 mA test current, measured per ANSI/IEEE C62.35. This 10% tolerance ensures reliable activation above nominal 26.8 V stand-off voltage while avoiding false triggering during normal 12 V system ripple. The TPSMP33-E3/84A maintains this specification across -65 °C to +185 °C operating junction temperature.
Is the TPSMP33-E3/84A qualified for automotive use?
Yes, the TPSMP33-E3/84A carries the E3 suffix indicating commercial-grade qualification per AEC-Q101. It meets MSL Level 1 per J-STD-020C, withstands solder dip at 260 °C for 40 seconds, and operates from -65 °C to +185 °C. The TPSMP33-E3/84A is explicitly designed for automotive applications including engine control, sensor protection, and infotainment systems per ISO 7637-2 and ISO 10605 standards.
What is the clamping voltage of the TPSMP33-E3/84A at its rated peak pulse current?
The TPSMP33-E3/84A clamps to a maximum of 47.7 V at its rated peak pulse current (IPPM) of 8.4 A under 10/1000 µs waveform conditions. This value is measured with the device mounted on a PCB using 5.0 × 5.0 mm copper pads per terminal, as specified in Vishay Document 88937. The TPSMP33-E3/84A achieves this performance using patented PAR oxide passivation for low incremental surge resistance.
Does the TPSMP33-E3/84A have bidirectional capability?
No, the TPSMP33-E3/84A is a unidirectional transient voltage suppressor. Its electrical characteristics - including forward voltage (VF = 2.5 V at 25 A) and reverse leakage specifications - confirm single-polarity operation. The cathode is marked with a color band, and the device must be oriented with cathode toward the protected line. For bidirectional protection, a separate part number (e.g., TPSMP33CA) would be required - not the TPSMP33-E3/84A.
What packaging format is supplied for the TPSMP33-E3/84A?
The TPSMP33-E3/84A is supplied in 7-inch diameter plastic tape and reel packaging with a base quantity of 3,000 units per reel (package code 84A). This format is optimized for high-speed automated pick-and-place assembly. The device's DO-220AA (SMP) package features matte tin-plated leads compliant with J-STD-002B and JESD22-B102D solderability standards - confirmed for the TPSMP33-E3/84A in Vishay's official documentation.
TPSMP33-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):
- 26.8V
- Voltage - Breakdown (Min):
- 29.7V
- Voltage - Clamping (Max) @ Ipp:
- 47.7V
- Current - Peak Pulse (10/1000µs):
- 8.4A
- 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)
TPSMP33-E3/84A FAQ
1.How can I place an order for TPSMP33-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP33-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 TPSMP33-E3/84A reliable?
The price and inventory of TPSMP33-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 TPSMP33-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP33-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP33-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP33-E3/84A?
TPSMP33-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP33-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 TPSMP33-E3/84A?
For technical support, including TPSMP33-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP33-E3/84A requirements.
6.How does Aetrix verify that TPSMP33-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP33-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 TPSMP33-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP33-E3/84A?
All TPSMP33-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP33-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 TPSMP33-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP33-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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