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Vishay General Semiconductor - Diodes Division TPSMP43AHM3_A/H
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- Part No.:
- TPSMP43AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP43AHM3_A/H.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,996
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Product details
Overview
TPSMP43AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the PAR® family, designed for high-reliability automotive and industrial overvoltage protection. It features a 40.9 V minimum breakdown voltage (VBR), 36.8 V stand-off voltage (VWM), 400 W peak pulse power (10/1000 µs), 185 °C maximum junction temperature, and SMP (DO-220AA) package with 1.0 mm profile - deployed to safeguard sensor signal lines and drive transistors against ESD and load dump.
For engineers reviewing the TPSMP43AHM3_A/H datasheet, TPSMP43AHM3_A/H pinout, TPSMP43AHM3_A/H application, or TPSMP43AHM3_A/H equivalent, key selection criteria include clamping voltage (59.3 V at IPPM), low incremental surge resistance, AEC-Q101 qualification, MSL Level 1 rating, and unidirectional polarity for DC-biased rail protection.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable breakdown behavior and low leakage (<1 µA at VWM) across -65 °C to +185 °C operating range. Its junction passivation enables robust performance under repeated surge stress while maintaining tight VBR tolerance (±5% typical) and low temperature coefficient (0.101 %/°C).
The device operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (36.8 V), it transitions rapidly (<1 ns response) into avalanche conduction, limiting transient voltage to ≤59.3 V at 6.7 A peak pulse current (IPPM). Its 2.5 W steady-state power dissipation supports continuous operation on FR-4 PCBs with recommended 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 36.8 V - maximum continuous reverse voltage before leakage rises; sets safe operating margin below VBR |
| VC @ IPPM | 59.3 V - clamping voltage during 6.7 A 10/1000 µs surge; determines protected circuit's worst-case transient exposure |
| PPPM | 400 W - peak pulse power handling capacity; enables protection against ISO 7637-2 Pulse 5a/b load dump events |
| TJ max | +185 °C - extended junction temperature rating supports under-hood automotive placement without derating |
| Package | SMP (DO-220AA) - ultra-low-profile surface-mount package (1.0 mm height) optimized for automated assembly and space-constrained layouts |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114 |
Pinout & Package
TPSMP43AHM3_A/H is a two-terminal unidirectional TVS diode in the SMP (DO-220AA) package. The cathode is marked by a color band; anode is the unmarked end. Terminals are matte tin-plated for solderability per J-STD-002 and whisker-resistant per JESD201 Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to lower-potential side of protected line | Enables standard DC biasing configuration; must be tied to ground or return path in unidirectional clamp topology |
| Cathode | Current exit point during reverse avalanche; connected to protected line or IC input | Color band identifies this terminal; determines correct orientation during PCB placement to ensure proper clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier structure | Ensures stable VBR over lifetime and temperature, with <1 µA leakage at VWM and 150 °C |
| 185 °C maximum junction temperature | Supports direct mounting in high-ambient environments (e.g., engine control units) without thermal derating |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements |
| Low profile: 1.0 mm typical height | Reduces board stack height and improves mechanical robustness in vibration-prone automotive modules |
| Halogen-free, RoHS-compliant, AEC-Q101 qualified | Fulfills automotive supply chain compliance mandates including material content, reliability, and environmental standards |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to ISO 16750-2 jump-start and load-dump transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between signal line and ground to clamp surges before they reach sensitive analog front-end or communication ICs. Use Value: Clamps 400 W transients to ≤59.3 V while maintaining <1 µA leakage at 36.8 V, preserving signal integrity and enabling AEC-Q101-compliant system certification. |
Use Scenario: Safeguarding gate driver inputs and feedback sensing nodes in variable-frequency drives subjected to IGBT switching noise and inductive kickback. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) voltage clamp on isolated signal paths to prevent false triggering or latch-up in PWM control circuits. Use Value: 6.7 A IPPM capability and 59.3 V clamping limit ensure logic-level signals remain within safe operating area during 10/1000 µs surges. |
| Consumer Power Adapter Outputs | Automotive Body Control Module (BCM) |
|
Use Scenario: Secondary-side overvoltage suppression on 5–24 V DC outputs of wall adapters and USB-PD chargers prone to capacitor discharge transients. IC Role / Device Role / Timing Role: Standoff-rated (36.8 V) unidirectional TVS placed across output rails to absorb energy from hot-plug or capacitive load discharges. Use Value: 400 W peak power rating and 1.0 mm profile allow integration into compact adapter PCBs without compromising surge immunity or footprint. |
Use Scenario: Protecting microcontroller I/O pins and CAN/LIN transceiver interfaces in BCMs exposed to battery reverse connection and alternator ripple. IC Role / Device Role / Timing Role: Primary-level transient suppressor on power and signal lines entering the BCM housing, upstream of local regulators and interface ICs. Use Value: AEC-Q101 qualification and 185 °C TJ rating guarantee long-term reliability in sealed, thermally constrained BCM enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/5A (Vishay) | Same VBR/VC specs but in SMA (DO-214AC) package; 2.3 mm height vs. 1.0 mm; 400 W PPPM; no AEC-Q101 qualification | Higher profile limits use in ultra-thin modules; lacks automotive qualification; suitable for industrial/commercial designs | Select SMAJ43A-E3/5A only if board height allows ≥2.3 mm and AEC-Q101 is not required. |
| 1.5SMC43A (ON Semiconductor) | DO-214AB package; 43 V VBR, 59.3 V VC, 400 W PPPM; AEC-Q101 qualified; 2.6 mm height; higher leakage (5 µA at VWM) | Greater mechanical footprint and leakage may impact low-power sensor nodes; validated for automotive but less space-efficient | Choose 1.5SMC43A when legacy DO-214AB layout exists and 1.0 mm height is not critical. |
Compared with SMAJ43A-E3/5A and 1.5SMC43A, TPSMP43AHM3_A/H delivers identical electrical protection performance in a 1.0 mm low-profile package with AEC-Q101 qualification - making it the optimal choice for next-generation automotive ECUs where board space and qualification rigor are non-negotiable.
Availability
TPSMP43AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive inputs, and consumer power adapter outputs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TPSMP43AHM3_A/H 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The TPSMP43AHM3_A/H belongs to Vishay's PAR® high-power-density TVS family, engineered specifically for automotive-grade transient suppression where low profile, high surge capability, and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage range for TPSMP43AHM3_A/H?
The TPSMP43AHM3_A/H has a specified breakdown voltage (VBR) range of 40.9 V (minimum) to 45.2 V (maximum) at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and temperature extremes up to 150 °C.
Is TPSMP43AHM3_A/H qualified for automotive applications?
Yes, TPSMP43AHM3_A/H is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature. It meets automotive reliability requirements including temperature cycling, highly accelerated life testing (HALT), and ESD robustness per JESD22-A114 - making it suitable for engine control, body electronics, and ADAS modules.
What is the clamping voltage of TPSMP43AHM3_A/H at its rated peak pulse current?
The TPSMP43AHM3_A/H clamps to a maximum of 59.3 V at its rated peak pulse current (IPPM) of 6.7 A under a 10/1000 µs waveform. This value is guaranteed across temperature and ensures protected downstream ICs remain within absolute maximum ratings during surge events.
Does TPSMP43AHM3_A/H have a halogen-free and RoHS-compliant construction?
Yes, TPSMP43AHM3_A/H carries the HM3 suffix, indicating halogen-free molding compound, RoHS compliance per Directive 2011/65/EU, and adherence to Vishay's material categorization standard (doc# 99912). Its matte tin-plated terminals also meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
What package type does TPSMP43AHM3_A/H use, and what are its key mechanical features?
TPSMP43AHM3_A/H uses the SMP (DO-220AA) package: a surface-mount outline with 1.0 mm typical height, 3.61 mm length, and 2.18 mm width. It features a cathode color band, UL 94 V-0 compliant molding compound, and optimized pad layout (5.0 mm × 5.0 mm copper per terminal) for thermal and surge performance.
TPSMP43AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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_A/H FAQ
1.How can I place an order for TPSMP43AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP43AHM3_A/H 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_A/H reliable?
The price and inventory of TPSMP43AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP43AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMP43AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP43AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP43AHM3_A/H?
TPSMP43AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP43AHM3_A/H 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_A/H?
For technical support, including TPSMP43AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP43AHM3_A/H requirements.
6.How does Aetrix verify that TPSMP43AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMP43AHM3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of TPSMP43AHM3_A/H?
All TPSMP43AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP43AHM3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for TPSMP43AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP43AHM3_A/H Tags
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