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Vishay General Semiconductor - Diodes Division TPSMP39A-E3/84A
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- Part No.:
- TPSMP39A-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP39A-E3/84A.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,678
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Product details
Overview
TPSMP39A-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 37.1 V to 41.0 V breakdown voltage (VBR), 53.9 V clamping voltage (VC) at 7.4 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM). It protects sensor signal lines and drive transistors in harsh automotive environments.
For engineers reviewing the TPSMP39A-E3/84A datasheet, TPSMP39A-E3/84A pinout, TPSMP39A-E3/84A application, or TPSMP39A-E3/84A equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity, AEC-Q101 qualification via HE3 suffix lineage, low-profile 1.0 mm height, and RoHS/WEEE compliance for automotive electronics design.
Technical Context
This TVS diode uses patented PAR oxide passivated chip construction to achieve low incremental surge resistance and excellent clamping capability. Its unidirectional configuration provides precise reverse-biased overvoltage protection with fast response time and meets MSL Level 1 per J-STD-020C.
Rated for operation from −65 °C to +185 °C junction temperature, it delivers stable performance under high-temperature automotive conditions. The device is characterized with 1.0 W steady-state power dissipation on PCB with 5.0 × 5.0 mm copper pads and supports 40 A non-repetitive forward surge current (IFSM) per 10 ms half-sine waveform.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V - Ensures reliable triggering above system stand-off voltage of 33.3 V |
| VC @ IPPM | 53.9 V - Limits protected circuit voltage during 7.4 A 10/1000 µs surge |
| PPPM | 400 W - Sustains high-energy transients common in automotive load-dump and ISO 7637-2 pulses |
| IFSM | 40 A - Withstands repetitive 10 ms half-sine surges without degradation |
| TJ max. | +185 °C - Enables placement near hot engine-control units or power modules |
| VF @ 25 A | 2.5 V - Low forward voltage minimizes conduction loss during fault events |
| Package | DO-220AA (SMP) - 1.0 mm profile allows dense layout in space-constrained ECUs |
Pinout & Package
DO-220AA (SMP) package: ultra-low-profile surface-mount case with matte tin-plated leads, UL-94V-0 epoxy, and cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during surge conduction | Connected to protected line; conducts when reverse voltage exceeds VBR |
| Cathode | Reverse-biased terminal; marked with color band | Connected to ground or lower-potential rail; defines unidirectional clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Enables stable VBR and low leakage (<1 µA at VWM) across temperature and lifetime |
| MSL Level 1 rating | Eliminates pre-bake requirement before reflow, reducing manufacturing cost and cycle time |
| 1.0 mm typical height | Permits placement beneath connectors or in stacked multi-layer PCB assemblies |
| AEC-Q101 qualified lineage | Validated reliability for automotive applications including engine control, ADAS sensors, and body electronics |
| RoHS/WEEE compliant | Meets EU regulatory requirements for hazardous substances and end-of-life handling |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) I/O Lines |
|---|---|
Use Scenario: Protecting analog output signals from crankshaft position and oxygen sensors exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamps reverse transients while preserving signal integrity during normal operation. Use Value: Prevents latch-up or damage to precision ADC front-ends by limiting voltage to ≤53.9 V during 10/1000 µs surges. | Use Scenario: Safeguarding microcontroller GPIOs and CAN transceiver I/O pins in under-hood ECUs subject to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed directly at connector entry point. Use Value: Maintains functional safety by ensuring logic-level compatibility remains intact after 400 W surge events. |
| Industrial Motor Drive Feedback | Automotive Camera Module Power Input |
Use Scenario: Shielding encoder and Hall-effect feedback lines in servo drives from switching noise and inductive kickback. IC Role / Device Role / Timing Role: Standoff voltage of 33.3 V enables use on 24 V industrial bus lines without false triggering. Use Value: Delivers <1 µA leakage at VWM, avoiding signal offset errors in high-resolution position sensing. | Use Scenario: Protecting 12 V input rails of surround-view camera modules against jump-start and battery-reverse transients. IC Role / Device Role / Timing Role: Unidirectional suppression aligned with polarity of vehicle power architecture. Use Value: Survives 260 °C solder dip for 40 s, ensuring robustness through full assembly reflow and repair cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A | DO-214AC package; 36 V VBR; 58.1 V VC @ 6.5 A; 400 W PPPM; same AEC-Q101 qualification path | 0.22 mm taller (2.3 mm vs. 1.0 mm); less suitable for ultra-thin modules | Select when board height budget allows and legacy DO-214AC footprint is fixed |
| TPSMP36A-E3/84A | Lower VBR (34.2–37.8 V); 49.9 V VC @ 8.0 A; identical DO-220AA package and thermal specs | Better suited for 33 V nominal systems where tighter clamping margin is required | Choose for 33 V rail protection where 37.1–41.0 V VBR may risk false triggering |
Compared with SMAJ36A-E3/5A, TPSMP39A-E3/84A offers 1.3 mm lower profile and optimized thermal resistance for high-density automotive layouts; versus TPSMP36A-E3/84A, it provides higher standoff and clamping headroom for 36 V systems, trading off slightly higher VC for improved surge margin.
Availability
TPSMP39A-E3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, engine control unit I/O hardening, and industrial motor feedback line safeguarding requiring stable component supply and AEC-Q101 traceability.
Supply support for TPSMP39A-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, high power density, and robust surge endurance in DO-220AA packaging.
FAQ
What is the breakdown voltage range of the TPSMP39A-E3/84A?
The TPSMP39A-E3/84A has a specified breakdown voltage (VBR) range of 37.1 V to 41.0 V at 1.0 mA test current. This range ensures consistent triggering behavior across production lots and temperature extremes, supporting reliable protection of 36 V automotive subsystems without premature conduction during normal operation. The TPSMP39A-E3/84A maintains this specification under full AEC-Q101 stress testing.
Is the TPSMP39A-E3/84A suitable for automotive applications?
Yes, the TPSMP39A-E3/84A is qualified to AEC-Q101 standards via its HE3 suffix lineage and is explicitly designed for automotive use. It meets MSL Level 1, withstands 260 °C solder dip for 40 seconds, operates from −65 °C to +185 °C, and is rated for 400 W peak pulse power-key requirements for engine bay and ADAS module deployments. The TPSMP39A-E3/84A appears in Vishay's automotive-grade transient suppressor portfolio.
What does the "E3/84A" suffix indicate in TPSMP39A-E3/84A?
The "E3" denotes commercial-grade termination (matte tin plating), while "84A" specifies the preferred packaging code: 7-inch plastic tape-and-reel with 3000 units per reel. This format ensures compatibility with high-speed pick-and-place equipment and supports automated SMT assembly. The TPSMP39A-E3/84A is not the high-reliability HE3 variant but shares identical electrical and thermal specifications with it.
How does the clamping voltage of TPSMP39A-E3/84A compare to its breakdown voltage?
The TPSMP39A-E3/84A clamps at 53.9 V when subjected to its rated 7.4 A peak pulse current (10/1000 µs waveform), which is approximately 1.4× its minimum breakdown voltage (37.1 V). This controlled voltage overshoot ensures downstream ICs remain within absolute maximum ratings during surge events. The TPSMP39A-E3/84A achieves this with low incremental surge resistance inherent to its PAR-passivated die structure.
Can TPSMP39A-E3/84A be used in bidirectional configurations?
No, the TPSMP39A-E3/84A is strictly unidirectional, as confirmed by Vishay's documentation and polarity marking (cathode band). It conducts only when reverse-biased beyond VBR; for bidirectional protection, two devices must be connected in series opposition or a dedicated bidirectional TVS like TPSMP39CA must be selected. The TPSMP39A-E3/84A datasheet explicitly states "Unidirection only" under FEATURES.
TPSMP39A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP39A-E3/84A FAQ
1.How can I place an order for TPSMP39A-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP39A-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 TPSMP39A-E3/84A reliable?
The price and inventory of TPSMP39A-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 TPSMP39A-E3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP39A-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP39A-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP39A-E3/84A?
TPSMP39A-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP39A-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 TPSMP39A-E3/84A?
For technical support, including TPSMP39A-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP39A-E3/84A requirements.
6.How does Aetrix verify that TPSMP39A-E3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP39A-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 TPSMP39A-E3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP39A-E3/84A?
All TPSMP39A-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP39A-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 TPSMP39A-E3/84A part is unused and in its original packaging.
Return procedure for TPSMP39A-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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