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Vishay General Semiconductor - Diodes Division TPSMP43AHM3/84A
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- Part No.:
- TPSMP43AHM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP43AHM3/84A.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,038
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Product details
Overview
TPSMP43AHM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of signal lines and power rails. It features 40.9 V to 45.2 V breakdown voltage (VBR), 5.0 μA max reverse leakage at 36.8 V stand-off voltage (VWM), 6.7 A peak pulse current (IPPM), and clamps to 59.3 V under surge, meeting AEC-Q101 for automotive electronics.
For engineers reviewing the TPSMP43AHM3/84A datasheet, TPSMP43AHM3/84A pinout, TPSMP43AHM3/84A application, or TPSMP43AHM3/84A equivalent, key selection criteria include unidirectional clamping behavior, 185 °C junction temperature rating, MSL Level 1 reflow compatibility, low-profile 1.0 mm height, and 400 W peak pulse power capability at VBR ≥ 13 V.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and load-dump events. Its unidirectional polarity-cathode marked by color band-requires correct orientation in series with protected IC inputs or across DC rails.
The device operates within -65 °C to +185 °C junction temperature range and delivers stable clamping performance up to 150 °C ambient, supported by a temperature coefficient of VBR at 0.101 %/°C. It is rated for 40 A non-repetitive forward surge current (IFSM) and dissipates 2.5 W continuously on infinite heatsink at 75 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V - defines minimum and maximum voltage at which device enters avalanche conduction under 1 mA test current |
| VWM | 36.8 V - maximum continuous reverse operating voltage before significant leakage begins |
| IPPM (10/1000 μs) | 6.7 A - peak surge current it safely clamps without failure, critical for IEC 61000-4-5 compliance |
| VC @ IPPM | 59.3 V - clamped voltage during full surge, determines maximum stress on downstream circuitry |
| PPPM | 400 W - peak pulse power handling capacity for VBR ≥ 13 V, enabling robust transient absorption |
| TJ max | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | DO-220AA (SMP) - ultra-low-profile surface-mount package with 1.0 mm typical height and J-STD-020 MSL Level 1 rating |
Pinout & Package
TPSMP43AHM3/84A uses the DO-220AA (SMP) package: a two-terminal, unidirectional surface-mount device with cathode indicated by a color band. The package measures 3.61 mm × 1.88 mm × 1.0 mm (L × W × H), features matte tin-plated leads, and complies with JESD 22-B102 solderability and JESD 201 Class 2 whisker resistance standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to protected line or signal path; conducts only when cathode is > anode by ≥ VBR |
| Cathode | Clamp/Return side terminal | Marked by color band; tied to ground or lower-potential rail to shunt surge energy away from load |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables consistent avalanche behavior and low leakage (<5 μA at VWM) across temperature and lifetime |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning, reducing manufacturing complexity |
| 185 °C maximum junction temperature | Permits use in high-ambient environments such as engine control units and power inverters |
| 0.024 g unit weight & 1.0 mm height | Minimizes PCB area and mass loading-ideal for space-constrained sensor modules and ADAS subsystems |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ISO 7637-2 load dump and ESD events. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor output and microcontroller input or transceiver pin. Use Value: Limits transient voltage to ≤59.3 V while maintaining <5 μA leakage at 36.8 V, preserving signal integrity and preventing latch-up in 3.3 V/5 V logic interfaces. | Use Scenario: Safeguarding digital input channels of programmable logic controllers against field-wiring surges and inductive kickback from solenoids or relays. IC Role / Device Role / Timing Role: Standoff protector mounted across input terminals to clamp transients before they reach optocoupler or Schmitt-trigger input stages. Use Value: Withstands 400 W pulses and 40 A surge current, ensuring immunity to IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) up to level 4 without derating. |
| Consumer Power Adapter Protection | Automotive Body Control Module (BCM) |
Use Scenario: Overvoltage suppression on secondary-side DC outputs of AC/DC adapters and USB PD chargers exposed to line transients or hot-plug events. IC Role / Device Role / Timing Role: Unidirectional TVS placed after rectification but before LDO or buck converter input to absorb residual spikes. Use Value: Fast <1 ns response and 59.3 V clamping prevent damage to 5 V–20 V rated regulators and USB interface ICs during 10/1000 μs surges. | Use Scenario: Input protection for microcontroller GPIOs and LIN bus pins in body electronics modules subjected to battery reversal, jump-start, and alternator load dump. IC Role / Device Role / Timing Role: Primary front-end TVS on power and communication lines entering BCM housing. Use Value: AEC-Q101 qualification and 185 °C TJ rating ensure functional safety compliance per ISO 26262 ASIL-B system requirements without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/5AT | DO-214AC (SMA) package; 43 V VBR min/max = 38.7 V / 47.3 V; 5.0 A IPPM; 56.4 V VC; 400 W PPPM | Larger footprint (4.5 mm × 2.7 mm) and 2.2 mm height; less suitable for ultra-thin modules | Select when board space allows larger package and legacy SMA footprint compatibility is required |
| TPSMA6.8A-Q | Same DO-220AA package; lower VBR (6.45 V / 7.14 V); 10.5 V VC; 300 W PPPM; AEC-Q101 qualified | Designed for 5 V rail protection; not suitable for 36 V+ systems due to lower standoff and clamping | Select only for low-voltage automotive or industrial circuits requiring tighter VBR tolerance and lower clamping voltage |
Compared with SMAJ43A-E3/5AT and TPSMA6.8A-Q, the TPSMP43AHM3/84A offers identical 400 W surge rating and AEC-Q101 qualification but in a 30 % smaller footprint and 55 % lower profile-critical for next-generation compact ECUs and sensor nodes where Z-height and board area are constrained.
Availability
TPSMP43AHM3/84A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and consumer power adapter surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPSMP43AHM3/84A 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, efficiency, and application-specific optimization.
The TPSMP series belongs to Vishay's PAR® (Protective Avalanche Rectifier) family-engineered specifically for high-power-density, high-temperature transient suppression in automotive and industrial environments where space, thermal margin, and qualification rigor are paramount.
FAQ
What is the breakdown voltage range of the TPSMP43AHM3/84A?
The TPSMP43AHM3/84A has a specified breakdown voltage (VBR) range of 40.9 V to 45.2 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures reliable turn-on during overvoltage events while maintaining tight tolerance for precise system-level protection design in 36 V nominal automotive and industrial power domains.
Is the TPSMP43AHM3/84A suitable for automotive applications?
Yes, the TPSMP43AHM3/84A is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood and body-control module applications. Its DO-220AA package meets MSL Level 1 reflow requirements, and its 400 W peak pulse power supports ISO 7637-2 and IEC 61000-4-5 compliance when applied per Vishay's recommended PCB layout.
What is the clamping voltage of the TPSMP43AHM3/84A under maximum surge conditions?
The TPSMP43AHM3/84A clamps to a maximum of 59.3 V at its rated peak pulse current (IPPM) of 6.7 A using the standardized 10/1000 μs waveform. This clamping voltage directly determines the maximum stress imposed on downstream ICs and must be verified against the absolute maximum ratings of protected devices in the final schematic.
Does the TPSMP43AHM3/84A have polarity markings, and how is it oriented on the PCB?
Yes, the TPSMP43AHM3/84A features a visible cathode band on the DO-220AA package body. During placement, the banded end must connect to the lower-potential node (e.g., ground or return rail), while the anode connects to the line or signal being protected-ensuring proper unidirectional clamping action during positive transients.
What is the steady-state power dissipation rating for the TPSMP43AHM3/84A?
The TPSMP43AHM3/84A is rated for 2.5 W steady-state power dissipation when mounted on an infinite heatsink at 75 °C ambient temperature. In real-world FR-4 PCB layouts with Vishay-recommended 5.0 mm × 5.0 mm copper pads per terminal, derating per Figure 6 applies-typically limiting continuous dissipation to ~1.2 W at 100 °C board temperature.
TPSMP43AHM3/84A 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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 6.7A
- 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)
TPSMP43AHM3/84A FAQ
1.How can I place an order for TPSMP43AHM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP43AHM3/84A 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 TPSMP43AHM3/84A reliable?
The price and inventory of TPSMP43AHM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP43AHM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP43AHM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP43AHM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP43AHM3/84A?
TPSMP43AHM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP43AHM3/84A 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 TPSMP43AHM3/84A?
For technical support, including TPSMP43AHM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP43AHM3/84A requirements.
6.How does Aetrix verify that TPSMP43AHM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP43AHM3/84A 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 TPSMP43AHM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP43AHM3/84A?
All TPSMP43AHM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP43AHM3/84A, 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 TPSMP43AHM3/84A part is unused and in its original packaging.
Return procedure for TPSMP43AHM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP43AHM3/84A Tags
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