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Vishay General Semiconductor - Diodes Division TPSMP39AHM3/84A
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- Part No.:
- TPSMP39AHM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP39AHM3/84A.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,730
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Product details
Overview
TPSMP39AHM3/84A 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 37.1 V to 41.0 V breakdown voltage (VBR), 5.0 μA max reverse leakage at 33.3 V (VWM), 7.4 A peak pulse current (IPPM), and clamps to ≤53.9 V under 10/1000 μs surge - protecting sensor signal lines and drive transistors against ESD and load dump.
For engineers reviewing the TPSMP39AHM3/84A datasheet, TPSMP39AHM3/84A pinout, TPSMP39AHM3/84A application, or TPSMP39AHM3/84A equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-220AA mechanical dimensions, clamping performance at rated IPPM, and direct alternatives with documented VBR, PPPM, and thermal derating behavior.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and ISO 7637-2 load-dump transients. Its 185 °C maximum junction temperature and MSL Level 1 rating support reflow soldering at 260 °C peak and operation in under-hood automotive environments.
The device operates unidirectionally with a defined cathode band, requires no external biasing, and delivers stable clamping across -65 °C to +185 °C. Its 1.0 mm typical height and matte tin-plated terminals ensure compatibility with automated SMT placement and J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V - ensures reliable triggering above 33.3 V stand-off without false conduction during normal operation |
| VC @ IPPM | ≤53.9 V - limits downstream IC voltage stress during 7.4 A 10/1000 μs surge |
| PPPM | 400 W - sustains high-energy transients common in 12 V automotive systems |
| IR @ VWM | ≤5.0 μA at 33.3 V - minimizes standby power loss in battery-critical applications |
| TJ max | +185 °C - enables deployment near hot engine control units without thermal derating penalties |
| Package | DO-220AA (SMP) - 1.0 mm height, 2.67 mm × 1.88 mm footprint, halogen-free, RoHS-compliant |
Pinout & Package
TPSMP39AHM3/84A is a two-terminal unidirectional TVS diode in DO-220AA (SMP) surface-mount package. The cathode is marked by a color band on the body; polarity must be observed during PCB layout to ensure correct clamping direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-impedance return path; completes clamping loop during overvoltage event |
| Cathode | High-side connection point | Connected to protected line (e.g., sensor output); color band identifies this terminal for orientation verification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JESD47 |
| Junction passivation | Reduces surface leakage and improves long-term stability under humid, high-bias conditions |
| MSL Level 1 | Supports standard reflow profiles up to 260 °C peak without moisture-induced failure |
| Low profile (1.0 mm) | Enables routing beneath adjacent tall components and reduces board-level mechanical stress during thermal cycling |
| Uni-directional operation | Provides precise clamping only on positive transients - avoids DC blocking issues in biased signal paths |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting analog outputs of pressure/temperature sensors in engine control modules exposed to ISO 7637-2 pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤53.9 V while maintaining <5.0 μA leakage at 33.3 V, preserving signal integrity and preventing ADC saturation. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers subjected to field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protector on optocoupler input side, shunting surge energy before isolation barrier. Use Value: Withstands 400 W peak pulse power and 7.4 A IPPM, ensuring immunity to repetitive 10/1000 μs transients per IEC 61000-4-5. |
| Consumer Power Adapter Interface | Automotive Body Control Module |
|
Use Scenario: Clamping induced spikes on USB-C CC line during hot-plug events in AC/DC adapters. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector, referenced to system ground. Use Value: Fast response time and 1.0 mm profile allow placement within 2 mm of connector, minimizing inductance and improving ESD suppression (IEC 61000-4-2 ±8 kV contact). |
Use Scenario: Protecting LIN bus transceiver pins in door module ECUs from battery reversal and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamp between LIN data line and ground, sized for 12 V system tolerance. Use Value: 37.1–41.0 V VBR range aligns with LIN spec (12 V nominal + 25 % margin), and 185 °C TJ rating supports under-dash mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A | VBR = 40–44.4 V; PPPM = 400 W; DO-214AC (SMA) package; 2.2 mm height | Larger footprint and height limit use in ultra-thin automotive modules | Select when existing SMA footprint is fixed and 2.2 mm height is acceptable |
| TPSMA6.8A-S | VBR = 7.13–7.88 V; PPPM = 300 W; same DO-220AA package; lower clamping voltage | Not suitable for 33.3 V stand-off; intended for 5 V–12 V rail protection | Choose only for lower-voltage signal lines where TPSMP39AHM3/84A's VWM would cause false triggering |
Compared with SMAJ36A-E3/5A, TPSMP39AHM3/84A offers 44 % lower profile and identical PPPM, enabling denser layouts; versus TPSMA6.8A-S, it provides 5× higher VWM and 1.6× higher clamping threshold - critical for 24 V+ automotive signal integrity.
Availability
TPSMP39AHM3/84A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, consumer power adapter protection, and body control module designs requiring stable component supply and AEC-Q101 compliance.
Supply support for TPSMP39AHM3/84A 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The TPSMP39AHM3/84A belongs to Vishay's eSMP® Series of high-power-density TVS diodes, engineered specifically for space-constrained, high-temperature automotive and industrial overvoltage protection applications.
FAQ
What is the exact breakdown voltage range for TPSMP39AHM3/84A?
The TPSMP39AHM3/84A has a guaranteed breakdown voltage (VBR) range of 37.1 V to 41.0 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures robust triggering above its 33.3 V stand-off voltage while avoiding premature conduction during normal operation - a key requirement for 24 V automotive signal line protection.
Is TPSMP39AHM3/84A qualified for automotive use?
Yes, TPSMP39AHM3/84A is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials. It meets MSL Level 1 per J-STD-020, supports peak reflow temperatures up to 260 °C, and is rated for continuous operation from -65 °C to +185 °C - satisfying under-hood environmental requirements for modern automotive ECUs.
What is the clamping voltage of TPSMP39AHM3/84A under surge conditions?
At its rated 7.4 A peak pulse current (IPPM) with a 10/1000 μs waveform, the TPSMP39AHM3/84A clamps to a maximum of 53.9 V. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events - critical for safeguarding 3.3 V or 5 V interface ICs downstream.
Does TPSMP39AHM3/84A have bidirectional capability?
No, TPSMP39AHM3/84A is strictly unidirectional. Its cathode is marked by a visible band, and it conducts only when the cathode is at higher potential than the anode. For bidirectional protection, a separate symmetric TVS or back-to-back configuration would be required - but TPSMP39AHM3/84A's unidirectional design minimizes leakage and optimizes clamping precision for DC-biased lines.
What package type does TPSMP39AHM3/84A use, and what are its key mechanical dimensions?
TPSMP39AHM3/84A uses the DO-220AA (SMP) package: 2.67 mm × 1.88 mm body size with 1.0 mm typical height and 0.61 mm terminal thickness. Its compact form factor, matte tin-plated leads, and MSL Level 1 rating make it compatible with high-speed automated placement and lead-free reflow processes - essential for automotive Tier 1 manufacturing.
TPSMP39AHM3/84A 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
TPSMP39AHM3/84A FAQ
1.How can I place an order for TPSMP39AHM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP39AHM3/84A 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 TPSMP39AHM3/84A reliable?
The price and inventory of TPSMP39AHM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP39AHM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP39AHM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP39AHM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP39AHM3/84A?
TPSMP39AHM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP39AHM3/84A 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 TPSMP39AHM3/84A?
For technical support, including TPSMP39AHM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP39AHM3/84A requirements.
6.How does Aetrix verify that TPSMP39AHM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP39AHM3/84A 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 TPSMP39AHM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP39AHM3/84A?
All TPSMP39AHM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP39AHM3/84A, 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 TPSMP39AHM3/84A part is unused and in its original packaging.
Return procedure for TPSMP39AHM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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