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Vishay General Semiconductor - Diodes Division TPSMC43HE3_A/I
- Part No.:
- TPSMC43HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC43HE3_A/I.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,263
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Product details
Overview
TPSMC43HE3_A/I 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 43 V breakdown voltage (VBR = 40.9–45.2 V at 1 mA), 36.8 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature - enabling robust clamping in automotive power rails and industrial sensor interfaces.
For engineers reviewing the TPSMC43HE3_A/I datasheet, TPSMC43HE3_A/I pinout, TPSMC43HE3_A/I application, or TPSMC43HE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating curves, clamping behavior under surge, and direct alternatives with documented differences in breakdown tolerance and leakage performance.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging passivated anisotropic rectifier technology to deliver fast response (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse power rating is validated per IEC 61000-4-5 with 10/1000 μs waveform, and clamping voltage is specified at 59.3 V (max) under 25.3 A peak pulse current.
The device is rated for continuous operation from –65 °C to +185 °C junction temperature, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and carries AEC-Q101 qualification - confirming suitability for automotive-grade power line and signal line protection where thermal stability and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 40.9 V / 43.0 V / 45.2 V at 1 mA - defines precise voltage threshold at which clamping initiates under transient stress |
| VWM | 36.8 V - maximum continuous reverse working voltage before leakage exceeds 1 μA, ensuring no false triggering during normal operation |
| VC @ IPPM | 59.3 V max at 25.3 A - clamped voltage seen by protected circuit during full-rated 1500 W surge, directly limiting downstream stress |
| PPPM | 1500 W (10/1000 μs) - peak transient energy absorption capability, validated on 8 mm × 8 mm copper pads |
| TJ max | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures without thermal derating penalties |
| Leakage @ VWM, 150 °C | 10 μA - low high-temperature leakage preserves signal integrity in hot ambient conditions and reduces standby power loss |
| AEC-Q101 Qualified | Yes - certified for automotive applications per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix). 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 point during forward conduction or clamping | Connected to protected line (e.g., 12 V rail); conducts only during reverse-biased transients when cathode is at higher potential |
| Cathode | Current exit point during clamping; marked by band | Typically tied to ground or lower-potential reference; establishes polarity-specific clamping direction and prevents forward conduction in normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against severe ISO 7637-2 Load Dump and IEC 61000-4-5 surges without cascading failure |
| 185 °C junction temperature rating | Supports placement near heat sources (e.g., power converters) without derating, reducing need for thermal margin overhead |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive power distribution modules, body control units, and ADAS sensor supply lines |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during fast transients, improving immunity margin for 3.3 V/5 V logic interfaces |
| MSL Level 1, 260 °C reflow compatible | Allows single-pass lead-free assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to ±120 V and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power input and ground, activated within nanoseconds of overvoltage onset. Use Value: Limits voltage seen by downstream DC/DC regulators and microcontrollers to ≤59.3 V, preventing latch-up and permanent damage per ISO 16750-2. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage transient clamp on signal path, operating below 36.8 V nominal voltage while responding <1 ns to >8 kV ESD. Use Value: Maintains signal fidelity during normal operation (≤1 μA leakage at 25 °C) and clamps ESD-induced spikes to safe levels without affecting loop accuracy. |
| Telecom DC Power Input Protection | Consumer Device USB Power Port Protection |
Use Scenario: Securing 48 V PoE-powered equipment inputs against lightning-induced surges and AC/DC adapter faults. IC Role / Device Role / Timing Role: Primary overvoltage clamp on primary-side DC bus, coordinated with upstream fuses and secondary-side TVS arrays. Use Value: Absorbs 1500 W transient energy without degradation, preserving system uptime and meeting IEC 61000-4-5 Level 4 compliance. | Use Scenario: Adding robustness to USB-C PD input stages in portable audio/video devices subjected to accidental 20 V adapter misconnection. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line, blocking conduction below 36.8 V but clamping at 59.3 V during overvoltage fault. Use Value: Prevents damage to USB PD controllers and buck converters while maintaining compatibility with standard 5–20 V PD profiles. |
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 range (40.9–45.2 V), but lower PPPM = 400 W; SMA package (smaller footprint, lower thermal mass) | Not suitable for 1500 W surge events; limited to lower-energy transients like ESD or contact discharge | Select only when board space is constrained and surge threat level is ≤400 W (e.g., consumer USB ports) |
| 1.5KE43A (ON Semiconductor) | Through-hole DO-201 package; identical VBR and PPPM, but no AEC-Q101 qualification and higher VC = 69.4 V | Lacks automotive qualification and exhibits 17% higher clamping voltage, reducing protection margin for sensitive ICs | Acceptable for industrial non-automotive use where through-hole mounting is required and tighter clamping is not critical |
Compared with SMAJ43A-E3/5A and 1.5KE43A, the TPSMC43HE3_A/I provides superior thermal robustness (185 °C TJ), AEC-Q101 validation, and lower clamping voltage - making it the preferred choice for automotive and high-reliability surface-mount designs requiring full 1500 W surge handling.
Availability
TPSMC43HE3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, and telecom DC input protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMC43HE3_A/I 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, precision, and high-temperature performance.
The TPSMC series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor family, engineered specifically for automotive and industrial applications demanding AEC-Q101 qualification, 185 °C operation, and consistent clamping under repetitive surge stress.
FAQ
What is the breakdown voltage tolerance of TPSMC43HE3_A/I?
The TPSMC43HE3_A/I has a breakdown voltage (VBR) range of 40.9 V to 45.2 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 43 V rating. This tight tolerance ensures predictable clamping onset across production lots and supports reliable coordination with upstream fusing and downstream IC absolute maximum ratings.
Is TPSMC43HE3_A/I qualified for automotive applications?
Yes, TPSMC43HE3_A/I is AEC-Q101 qualified - confirmed by Vishay's documentation and indicated by the "HE3" suffix. It passes stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling, making it suitable for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage for TPSMC43HE3_A/I under surge conditions?
The maximum clamping voltage (VC) for TPSMC43HE3_A/I is 59.3 V at 25.3 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuits during worst-case transient events and is critical for verifying compatibility with downstream IC voltage tolerances.
Does TPSMC43HE3_A/I meet RoHS and halogen-free requirements?
Yes, TPSMC43HE3_A/I is RoHS-compliant and halogen-free, as confirmed by Vishay's material categorization documentation (www.vishay.com/doc?99912) and the "HE3" ordering suffix. It uses matte tin-plated leads and UL 94 V-0 compliant molding compound, satisfying environmental compliance for global electronics manufacturing.
What is the thermal derating behavior of TPSMC43HE3_A/I above 25 °C ambient?
TPSMC43HE3_A/I follows Vishay's standard derating curve (Fig. 2 in datasheet 88407): peak pulse power decreases linearly from 100% at 25 °C to ~50% at 125 °C junction temperature. At 150 °C, it retains ~35% of rated 1500 W capability - enabling continued surge protection in high-ambient environments when mounted on adequate copper area.
TPSMC43HE3_A/I 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/I FAQ
1.How can I place an order for TPSMC43HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC43HE3_A/I 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/I reliable?
The price and inventory of TPSMC43HE3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for TPSMC43HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC43HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC43HE3_A/I?
TPSMC43HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC43HE3_A/I 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/I?
For technical support, including TPSMC43HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC43HE3_A/I requirements.
6.How does Aetrix verify that TPSMC43HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC43HE3_A/I 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/I meets industry standards.
7.What is the process for return or replacement of TPSMC43HE3_A/I?
All TPSMC43HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC43HE3_A/I, 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/I part is unused and in its original packaging.
Return procedure for TPSMC43HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC43HE3_A/I Tags
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