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Vishay General Semiconductor - Diodes Division TPSMC43AHE3_A/H
- Part No.:
- TPSMC43AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC43AHE3_A/H.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,452
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Product details
Overview
TPSMC43AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-reliability overvoltage 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, and operates up to +185 °C junction temperature.
For engineers reviewing the TPSMC43AHE3_A/H datasheet, TPSMC43AHE3_A/H pinout, TPSMC43AHE3_A/H application, or TPSMC43AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, unidirectional polarity, low clamping ratio (VC/VWM ≈ 0.69), MSL Level 1 rating, and suitability for automotive power line and sensor interface protection where thermal stability and surge robustness are critical.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for junction stability under repetitive surge stress. Its 185 °C maximum junction temperature enables operation in under-hood automotive environments without derating penalties typical of lower-TJ devices.
The device delivers 25.3 V clamping voltage at 20 A IPPM with low incremental surge resistance, ensuring effective voltage limiting during fast transients such as load dump or ISO 7637-2 pulses. Its 1.0 µA max reverse leakage at VWM and 0.092 %/°C VBR temperature coefficient support stable performance across industrial and automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 43.0 V - precise breakdown threshold ensures reliable triggering before downstream IC damage |
| VWM | 36.8 V - maximum continuous working voltage compatible with 36 V nominal automotive systems |
| VC @ IPPM | 25.3 V - clamping voltage at 20 A limits protected circuit stress during 10/1000 µs surges |
| PPPM | 1500 W - peak pulse power rating supports high-energy transients per IEC 61000-4-5 and ISO 7637-2 |
| TJ max. | +185 °C - enables use in high-temperature locations (e.g., engine control units, battery management) |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation in series with power rail |
| MSL Level | Level 1 (260 °C peak) - allows standard reflow soldering without moisture sensitivity concerns |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by color band. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-side return path; defines unidirectional current flow direction |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., 12 V supply); clamps to anode when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Junction passivation | Reduces leakage drift and improves long-term stability under thermal stress and humidity exposure |
| Low clamping ratio (VC/VWM = 0.69) | Minimizes overvoltage margin between operating and clamping levels for tighter system protection |
| 1500 W peak pulse power | Withstands high-energy transients without degradation, supporting >1000 cycles at rated conditions |
| Very fast response time (<1 ns) | Activates before most semiconductor switching elements can be damaged by ESD or surge events |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control modules (ECMs) and body control modules (BCMs) against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Withstands 1500 W surges while clamping to 25.3 V, preventing latch-up or burnout of downstream 36 V-rated components. | Use Scenario: Shielding analog and digital signal lines (e.g., CAN, LIN, thermistor inputs) in factory automation sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional protection element on PCB-level I/O traces adjacent to connectors. Use Value: Sub-1 ns response and 1.0 µA leakage at 36.8 V ensure signal integrity and low power consumption in always-on sensing nodes. |
| Telecom Power Supply Input | Consumer Device USB Power Path |
Use Scenario: Safeguarding AC/DC adapter outputs and PoE-powered equipment inputs against lightning-induced surges and grid transients. IC Role / Device Role / Timing Role: First-line transient suppression before primary filtering and regulation stages. Use Value: 185 °C TJ rating allows placement near hot-running transformers or MOSFETs without thermal derating loss. | Use Scenario: Adding robust overvoltage immunity to USB-C PD input circuits in portable monitors and docking stations. IC Role / Device Role / Timing Role: Unidirectional shunt protector on VBUS line, coordinated with internal OVP and current-limiting ICs. Use Value: Low 25.3 V clamping voltage prevents false triggering of host-side 20 V OVP thresholds during transient events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43AHE3/A | Lower peak pulse power (400 W), same VBR (43 V), SMA package (smaller footprint, lower thermal mass) | Not suitable for 1500 W surge requirements; limited to low-energy ESD and data-line protection | Select only if space-constrained and surge energy is ≤400 W (e.g., secondary-side signal lines) |
| TPSMC43AHM3_A/H | Identical electrical specs; halogen-free molding compound and whisker-resistant plating (JESD 201 Class 2) | No functional difference; required for RoHS+halogen-free compliance programs | Choose when material compliance (e.g., automotive Tier-1 sourcing) mandates halogen-free construction |
Compared with SMAJ43AHE3/A and TPSMC43AHM3_A/H, the TPSMC43AHE3_A/H uniquely balances 1500 W surge capability, AEC-Q101 qualification, and SMC package thermal robustness-making it the preferred choice for primary automotive power rail protection where both energy handling and reliability are non-negotiable.
Availability
TPSMC43AHE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom power supplies, and consumer USB-C PD input protection requiring stable component supply and long-term lifecycle assurance.
Supply support for TPSMC43AHE3_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, thermal performance, and automotive qualification.
The TPSMC43AHE3_A/H belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for demanding automotive and industrial environments where sustained high-temperature operation and repeatable surge immunity are mandatory.
FAQ
What is the maximum clamping voltage of the TPSMC43AHE3_A/H at its rated peak pulse current?
The TPSMC43AHE3_A/H has a maximum clamping voltage (VC) of 25.3 V at 20 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and reflects the actual voltage seen by downstream components during surge events. The low clamping level ensures compatibility with 36 V-rated ICs and power stages. For design margin, engineers should reference the full VC vs. IPPM curve in the TPSMC43AHE3_A/H datasheet Figure 6.
Is the TPSMC43AHE3_A/H qualified for automotive applications?
Yes, the TPSMC43AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock-ensuring suitability for under-hood and chassis-mounted automotive ECUs. The TPSMC43AHE3_A/H meets automotive reliability requirements without requiring additional qualification by the end user.
What does the "HE3" suffix mean in TPSMC43AHE3_A/H?
The "HE3" suffix in TPSMC43AHE3_A/H indicates a RoHS-compliant, AEC-Q101 qualified version with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards. The "H" denotes the tape-and-reel packaging format (7-inch reel, 850 units), and "A/H" specifies the revision code and packaging variant. This suffix distinguishes it from non-automotive versions (e.g., base P/N without HE3) and confirms compliance with automotive supply chain requirements.
Can the TPSMC43AHE3_A/H replace the TPSMC43AHM3_A/H in a design?
The TPSMC43AHE3_A/H and TPSMC43AHM3_A/H share identical electrical specifications, thermal ratings, and mechanical dimensions. The only difference is material composition: HM3 adds halogen-free molding compound and enhanced whisker resistance (JESD 201 Class 2). Therefore, TPSMC43AHE3_A/H can functionally replace HM3 in non-halogen-restricted designs, but HM3 remains mandatory where halogen-free compliance is contractually required-such as Tier-1 automotive BOMs. No PCB or layout changes are needed for substitution.
What is the thermal derating behavior of the TPSMC43AHE3_A/H above 25 °C ambient?
The TPSMC43AHE3_A/H follows standard derating per Figure 2 in its datasheet: peak pulse power decreases linearly from 1500 W at 25 °C to approximately 750 W at 125 °C ambient, assuming mounting on 8.0 mm × 8.0 mm copper pads. Derating is governed by junction temperature limits-not ambient alone-so board layout, copper area, and airflow critically impact real-world performance. For continuous operation, the device's 185 °C TJ max allows full-rated surge capability at higher ambient temperatures than conventional TVS diodes.
TPSMC43AHE3_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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 25.3A
- 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)
TPSMC43AHE3_A/H FAQ
1.How can I place an order for TPSMC43AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC43AHE3_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 TPSMC43AHE3_A/H reliable?
The price and inventory of TPSMC43AHE3_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 TPSMC43AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC43AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC43AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC43AHE3_A/H?
TPSMC43AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC43AHE3_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 TPSMC43AHE3_A/H?
For technical support, including TPSMC43AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC43AHE3_A/H requirements.
6.How does Aetrix verify that TPSMC43AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC43AHE3_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 TPSMC43AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC43AHE3_A/H?
All TPSMC43AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC43AHE3_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 TPSMC43AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC43AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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