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Vishay General Semiconductor - Diodes Division TPSMC43HE3_A/H
- Part No.:
- TPSMC43HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC43HE3_A/H.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,720
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Product details
Overview
TPSMC43HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection of sensitive electronics. It features a 43.0 V nominal breakdown voltage (VBR), 36.8 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 25.3 V clamping voltage at 20 A peak pulse current (IPPM), and operates up to +185 °C junction temperature - ideal for automotive power line and sensor interface protection.
For engineers reviewing the TPSMC43HE3_A/H datasheet, TPSMC43HE3_A/H pinout, TPSMC43HE3_A/H application, or TPSMC43HE3_A/H equivalent, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, SMC package mechanical data, and real-world design implications for transient immunity in harsh-environment systems.
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 and lightning-induced transients per IEC 61000-4-2/4-5. Its unidirectional polarity and 185 °C maximum junction temperature support under-hood automotive deployment and industrial motor drive interfaces.
The device meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, has matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is qualified to AEC-Q101 - confirmed by the HE3 suffix denoting RoHS-compliant, AEC-Q101-qualified production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 40.9 / 43.0 / 45.2 V - ensures reliable triggering above system operating voltage while maintaining margin against false clamping |
| VWM | 36.8 V - maximum continuous reverse working voltage compatible with 36 V nominal automotive battery systems |
| VC @ IPPM | 25.3 V at 20 A - clamps transients to safe levels for downstream 3.3 V/5 V logic and analog ICs |
| PPPM | 1500 W (10/1000 µs) - handles high-energy load dump and inductive switching surges without failure |
| TJ max. | +185 °C - enables placement near heat sources (e.g., power converters) without thermal derating penalties |
| IR @ VWM | 1.0 µA - negligible leakage current preserves battery life in always-on automotive modules |
| Package | SMC (DO-214AB) - industry-standard footprint with 8.0 mm × 8.0 mm copper pad requirement for thermal dissipation |
Pinout & Package
TPSMC43HE3_A/H is housed in an SMC (DO-214AB) surface-mount package with cathode indicated by a color band. The device has two terminals: anode and cathode. Mounting requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal for rated power handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to protected circuit ground or low-side return path | Provides low-impedance path to ground when clamping reverse transients on cathode-connected lines |
| Cathode | Transient input node; connected to line requiring protection (e.g., CAN_H, LIN, power rail) | Accepts positive-going surges relative to anode; defines unidirectional clamping direction toward ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive applications including engine control units and body electronics |
| 185 °C junction rating | Enables operation in under-hood environments without external heatsinking or derating |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events |
| Low clamping voltage (25.3 V @ 20 A) | Protects 24 V/36 V systems while preserving headroom for downstream regulators and transceivers |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without baking or special handling prior to assembly |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V/36 V supply rails in engine control modules against ISO 7637-2 load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp overvoltage spikes. Use Value: Clamps 1500 W surges to ≤25.3 V, preventing damage to DC/DC converters and microcontrollers without sacrificing system efficiency. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Transient suppressor mounted at connector entry point to shunt fast transients before reaching precision amplifier stages. Use Value: Sub-1 ns response time and 1.0 µA leakage preserve signal integrity and long-term calibration stability in high-accuracy measurement systems. |
| Telecom Power Feeding Protection | Consumer Device USB Port Protection |
Use Scenario: Securing PoE-powered equipment (e.g., IP cameras) against induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on midspan injector output, coordinated with secondary TVS on powered device side. Use Value: 36.8 V VWM allows compatibility with IEEE 802.3af/at voltage ranges while delivering 1500 W surge handling per event. |
Use Scenario: Adding robustness to USB-C power delivery inputs in portable audio devices exposed to user-handling ESD. IC Role / Device Role / Timing Role: Front-end TVS on VBUS line upstream of buck converter and USB PD controller. Use Value: AEC-Q101 qualification and 185 °C rating ensure reliability across consumer device lifecycle, even in thermally constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43AHE3_A/H | Same VBR (43 V), but lower PPPM = 600 W in smaller SMB (DO-214AA) package | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump | Select when board space is constrained and surge energy does not exceed 600 W |
| TPSMC43AHM3_A/H | Identical electrical specs; halogen-free molding compound instead of standard RoHS-compliant material | Required for strict environmental compliance in EU automotive Tier 1 supply chains | Choose HM3 suffix when halogen-free certification is mandated by OEM specification |
Compared with TPSMC43HE3_A/H, SMBJ43AHE3_A/H trades surge capacity for compactness, while TPSMC43AHM3_A/H maintains full performance with enhanced material compliance - both serve distinct design constraints without altering circuit topology or layout.
Availability
TPSMC43HE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom power feeding, and consumer USB-C protection requiring stable component supply across extended temperature and high-reliability environments.
Supply support for TPSMC43HE3_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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The TPSMC43HE3_A/H belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for robust transient immunity in automotive-grade power systems and industrial control environments.
FAQ
What is the clamping voltage of the TPSMC43HE3_A/H at its rated peak pulse current?
The TPSMC43HE3_A/H has a maximum clamping voltage (VC) of 25.3 V at 20 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and reflects the actual voltage seen by downstream circuitry during surge events. The low clamping level ensures compatibility with 24 V and 36 V systems while protecting sensitive ICs connected to the same rail. TPSMC43HE3_A/H maintains this performance across its full operating temperature range.
Is the TPSMC43HE3_A/H qualified for automotive use?
Yes, the TPSMC43HE3_A/H is AEC-Q101 qualified, as confirmed by the HE3 suffix in its ordering code. It meets rigorous stress testing requirements for temperature cycling, humidity, mechanical shock, and surge endurance required for automotive electronic modules. The device supports junction temperatures up to +185 °C and is rated for under-hood applications such as engine control units, body controllers, and ADAS sensor power supplies. TPSMC43HE3_A/H is manufactured and tested to automotive-grade quality standards.
What does the "HE3" suffix mean in TPSMC43HE3_A/H?
The "HE3" suffix in TPSMC43HE3_A/H indicates RoHS-compliant construction and AEC-Q101 qualification. It denotes that the device uses lead-free terminations, complies with EU RoHS Directive 2011/65/EU, and has passed the full AEC-Q101 stress test suite for discrete semiconductors. The "_A/H" portion specifies revision A and packaging in 7″ tape-and-reel (H = 850 units per reel). TPSMC43HE3_A/H is traceable to Vishay's automotive-grade production lot controls and documentation.
How does the TPSMC43HE3_A/H compare to bidirectional TVS diodes?
The TPSMC43HE3_A/H is unidirectional only, meaning it clamps positive transients on the cathode relative to the anode and conducts like a rectifier in forward bias. Unlike bidirectional TVS diodes, it does not protect against negative-going surges on the same line. This makes TPSMC43HE3_A/H ideal for DC power rails where polarity is fixed and reverse-voltage events are not expected. Its unidirectional architecture provides lower leakage and tighter VBR tolerance than equivalent bidirectional parts.
What PCB layout considerations apply to the TPSMC43HE3_A/H?
For optimal thermal and electrical performance, the TPSMC43HE3_A/H must be mounted on 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads at each terminal, as specified in the Vishay datasheet. Short, wide traces minimize inductance between the TVS and protected node. Ground connections should route directly to a solid ground plane, avoiding vias or narrow necks. Thermal relief should be minimized to maximize heat dissipation during surge events. TPSMC43HE3_A/H layout adherence ensures full 1500 W pulse power capability and prevents premature failure.
TPSMC43HE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 34.8V
- Voltage - Breakdown (Min):
- 38.7V
- Voltage - Clamping (Max) @ Ipp:
- 61.9V
- Current - Peak Pulse (10/1000µs):
- 24.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC43HE3_A/H FAQ
1.How can I place an order for TPSMC43HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC43HE3_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 TPSMC43HE3_A/H reliable?
The price and inventory of TPSMC43HE3_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 TPSMC43HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC43HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC43HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC43HE3_A/H?
TPSMC43HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC43HE3_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 TPSMC43HE3_A/H?
For technical support, including TPSMC43HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC43HE3_A/H requirements.
6.How does Aetrix verify that TPSMC43HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC43HE3_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 TPSMC43HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC43HE3_A/H?
All TPSMC43HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC43HE3_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 TPSMC43HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC43HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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