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Vishay General Semiconductor - Diodes Division TPSMC47AHE3_B/I
- Part No.:
- TPSMC47AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC47AHE3_B/I.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,877
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Product details
Overview
TPSMC47AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 47 V breakdown voltage (VBR = 44.7–49.4 V), 1500 W peak pulse power (10/1000 µs), and 23.1 A peak pulse current (IPPM). It clamps transients to ≤64.8 V at IPPM, operates from −65 °C to +185 °C, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the TPSMC47AHE3_B/I datasheet, TPSMC47AHE3_B/I pinout, TPSMC47AHE3_B/I application, or TPSMC47AHE3_B/I equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, and validated automotive-grade reliability data - all specific to the TPSMC47AHE3_B/I variant with HE3 suffix, RoHS-compliant, halogen-free optional, and 13" tape-and-reel packaging.
Technical Context
The TPSMC47AHE3_B/I employs passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping capability. Its unidirectional polarity enables robust protection of DC power rails and signal lines against inductive switching transients and ESD events.
Designed for high-reliability environments, it supports junction temperatures up to 185 °C and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The device is characterized using standardized 10/1000 µs waveform testing per ANSI/IEEE C62.35 and exhibits a typical VBR temperature coefficient of 0.092 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 44.7 V / 47.0 V / 49.4 V - Ensures reliable triggering above 40.2 V stand-off voltage while maintaining margin against false triggering. |
| VC @ IPPM | ≤64.8 V - Clamps 23.1 A surge to safe levels for downstream 48 V-rated ICs and MOSFETs. |
| PPPM | 1500 W (10/1000 µs) - Handles high-energy transients common in automotive load-dump and inductive kick scenarios. |
| TJ max. | +185 °C - Enables operation in under-hood automotive modules and industrial motor drives without thermal derating penalties. |
| IFSM | 200 A (8.3 ms half-sine) - Withstands repetitive surge events in power supply input stages. |
| Polarity | Unidirectional - Protects positive-rail circuits only; requires reverse-biased placement relative to protected line. |
| Package | SMC (DO-214AB) - Standardized footprint compatible with automated SMT assembly and thermal pad layout per Vishay's 8.0 mm × 8.0 mm copper pad recommendation. |
Pinout & Package
TPSMC47AHE3_B/I uses the 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 at each terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VBR exceeded. |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR and low leakage (<1 μA at VWM) across −65 °C to +185 °C operating range. |
| 1500 W peak pulse power (10/1000 µs) | Provides immunity to ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surge waveforms in automotive ECUs. |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., <1 ns rise time), improving protection margin. |
| MSL Level 1, 260 °C peak reflow | Supports lead-free assembly without preconditioning; eliminates moisture-related popcorning risk during reflow. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protection of 48 V CAN bus power rail and microcontroller I/O against load-dump transients and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between VBAT and ground, clamping surges within 1 ns response time. Use Value: Maintains system uptime by limiting voltage to ≤64.8 V during 1500 W pulses, preventing latch-up or gate oxide damage in protected 48 V-rated components. | Use Scenario: Safeguarding 24 V digital input circuitry from field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Standoff protector on optocoupler input side, absorbing ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Delivers <1 μA leakage at 20.5 V VWM, preserving input threshold accuracy while surviving 200 A surge events per IEC 61000-4-5. |
| Telecom Power Supply Front-End | Automotive ADAS Camera Module |
Use Scenario: Secondary-side overvoltage suppression on +48 V telecom rectifier output feeding PoE injectors. IC Role / Device Role / Timing Role: Clamp device parallel to bulk capacitor, activated only during fault conditions exceeding 40.2 V. Use Value: Achieves 64.8 V clamping at 23.1 A, ensuring downstream DC-DC converters remain within absolute maximum ratings during lightning-induced surges. | Use Scenario: Input protection for 12 V camera power rail exposed to battery transients in rear-view and surround-view systems. IC Role / Device Role / Timing Role: Unidirectional TVS on camera module power entry, mounted with 8 mm × 8 mm thermal pads per Vishay spec. Use Value: Operates reliably at +125 °C ambient with full 1500 W rating, meeting AEC-Q101 requirements for under-hood camera deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47AHE3_A/H | Lower PPPM (600 W), same VBR range, SMB (DO-214AA) package - smaller footprint, lower thermal mass. | Not suitable for 1500 W load-dump events; limited to lower-energy ESD/EFT protection in space-constrained designs. | Select when board area is critical and surge energy is ≤600 W; verify thermal pad layout compatibility. |
| TPSMC47CAHE3_B/I | Same package and power rating, but bidirectional - symmetric clamping for AC-coupled or dual-polarity signal lines. | Required for protecting differential buses (e.g., RS-485) or AC power inputs where negative transients occur. | Choose only if bidirectional clamping is needed; unidirectional TPSMC47AHE3_B/I offers lower leakage and tighter VBR tolerance for DC rails. |
Compared with SMBJ47AHE3_A/H and TPSMC47CAHE3_B/I, the TPSMC47AHE3_B/I uniquely balances 1500 W surge handling, AEC-Q101 qualification, and unidirectional precision in the SMC package - making it optimal for high-energy DC rail protection where leakage, clamping voltage, and automotive compliance are jointly critical.
Availability
TPSMC47AHE3_B/I is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC input modules, and telecom power supply front-ends requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant transient protection.
Supply support for TPSMC47AHE3_B/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, rectifiers, TVS devices, and power MOSFETs with emphasis on reliability, thermal performance, and automotive qualification.
The TPSMC series is designed specifically for high-energy transient suppression in harsh-environment applications - targeting automotive, industrial, and telecom systems where 1500 W surge immunity and +185 °C junction operation are mandatory.
FAQ
What is the breakdown voltage tolerance for TPSMC47AHE3_B/I?
The TPSMC47AHE3_B/I has a specified breakdown voltage range of 44.7 V (minimum) to 49.4 V (maximum) at 1 mA test current, with a nominal value of 47.0 V. This ±5% tolerance ensures consistent triggering behavior across production lots while maintaining sufficient margin above its 40.2 V stand-off voltage (VWM) to avoid false conduction during normal operation. The parameter is measured per ANSI/IEEE C62.35 standards.
Is TPSMC47AHE3_B/I suitable for automotive applications?
Yes, TPSMC47AHE3_B/I is AEC-Q101 qualified and carries the HE3 suffix indicating RoHS compliance and automotive-grade reliability. It supports junction temperatures up to +185 °C and meets MSL Level 1 with 260 °C peak reflow, making it suitable for under-hood engine control units, body control modules, and ADAS camera power rails. Its 1500 W surge rating aligns with ISO 7637-2 load-dump requirements.
What is the clamping voltage of TPSMC47AHE3_B/I at maximum rated surge current?
The TPSMC47AHE3_B/I clamps to a maximum of 64.8 V when subjected to its rated peak pulse current of 23.1 A (IPPM) under a 10/1000 µs waveform. This clamping voltage defines the upper voltage limit imposed on protected circuitry during surge events and is guaranteed across the full operating temperature range, enabling robust design margin for 48 V-rated downstream components.
Does TPSMC47AHE3_B/I have bidirectional capability?
No, TPSMC47AHE3_B/I is unidirectional only, as confirmed in the Vishay datasheet. It protects against positive-going transients on DC lines referenced to ground. For applications requiring suppression of both positive and negative surges - such as AC signal lines or differential buses - the bidirectional variant TPSMC47CAHE3_B/I must be used instead. Polarity is marked by a cathode band on the SMC package.
What package type and mounting requirements apply to TPSMC47AHE3_B/I?
TPSMC47AHE3_B/I uses the SMC (DO-214AB) surface-mount package with matte tin-plated leads. Vishay specifies mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal to achieve full 1500 W pulse power rating. The device is MSL Level 1 compliant and supports lead-free reflow up to 260 °C peak temperature without preconditioning.
TPSMC47AHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 23.1A
- 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 (SMC)
TPSMC47AHE3_B/I FAQ
1.How can I place an order for TPSMC47AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC47AHE3_B/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 TPSMC47AHE3_B/I reliable?
The price and inventory of TPSMC47AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC47AHE3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMC47AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC47AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC47AHE3_B/I?
TPSMC47AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC47AHE3_B/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 TPSMC47AHE3_B/I?
For technical support, including TPSMC47AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC47AHE3_B/I requirements.
6.How does Aetrix verify that TPSMC47AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC47AHE3_B/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 TPSMC47AHE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMC47AHE3_B/I?
All TPSMC47AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC47AHE3_B/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 TPSMC47AHE3_B/I part is unused and in its original packaging.
Return procedure for TPSMC47AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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