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Vishay General Semiconductor - Diodes Division TPSMC47AHE3_B/H
- Part No.:
- TPSMC47AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC47AHE3_B/H.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,700
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Product details
Overview
TPSMC47AHE3_B/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 on power and signal lines. It features 47 V breakdown voltage (VBR = 44.7–49.4 V), 40.2 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 23.1 A clamping current (IPPM), and 64.8 V maximum clamping voltage (VC) - deployed to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the TPSMC47AHE3_B/H datasheet, TPSMC47AHE3_B/H pinout, TPSMC47AHE3_B/H application, or TPSMC47AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low incremental surge resistance, and compatibility with automated SMT assembly under J-STD-002/JESD 22-B102 soldering standards.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance across -65 °C to +185 °C operating range. Its 10/1000 μs waveform response enables robust suppression of inductive switching transients and lightning-induced surges in DC power rails and low-voltage signal paths.
The device exhibits 0.092 %/°C temperature coefficient of VBR, ensuring predictable voltage drift over temperature, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for high-reliability automotive PCBs where thermal cycling and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 44.7 / 47.0 / 49.4 V - defines precise breakdown threshold at 1 mA test current; ensures reliable turn-on before downstream component damage |
| VWM | 40.2 V - maximum continuous reverse working voltage; sets safe DC operating margin below breakdown |
| VC @ IPPM | 64.8 V - clamping voltage at 23.1 A peak pulse; determines worst-case protected circuit overvoltage during surge |
| PPPM | 1500 W - peak pulse power handling (10/1000 μs); supports high-energy transients common in automotive load-dump events |
| TJ max. | +185 °C - extended junction temperature rating; enables operation in under-hood and industrial motor-control environments |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in series with protected line |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms half-sine); withstands brief fault currents without failure |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/protected line connection | Connected to source of transient energy (e.g., battery rail or signal line); conducts during reverse-biased clamping |
| Cathode | Clamp reference / ground return | Connected to system ground or low-impedance return path; establishes clamping voltage relative to reference plane |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Reduces leakage drift and improves long-term reliability under thermal stress and humidity exposure |
| 1500 W peak pulse power (10/1000 μs) | Handles high-energy transients such as ISO 7637-2 Pulse 5a (load dump) without degradation |
| Meets MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow without moisture-related delamination or popcorn effect |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling per AEC standard |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V/5 V ICs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 40.2 V. Use Value: Withstands 1500 W pulses and operates up to +185 °C, meeting ISO 16750-2 and AEC-Q101 requirements for under-hood placement. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital sensor interfaces (CAN, LIN) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across differential or single-ended signal pair to shunt transient energy before reaching ADC or transceiver input. Use Value: 64.8 V clamping voltage ensures protected ICs rated for ≤65 V absolute maximum survive repeated 8 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input Stage | Telecom DC Power Distribution |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB PD power bricks after rectification. IC Role / Device Role / Timing Role: TVS installed across bulk capacitor terminals to absorb residual switching spikes and line transients. Use Value: 23.1 A IPPM and low clamping ratio (VC/VBR ≈ 1.38) limit capacitor stress and prevent secondary-side controller latch-up. |
Use Scenario: Front-end protection of 48 V telecom power distribution boards feeding remote radio units and baseband processors. IC Role / Device Role / Timing Role: Unidirectional TVS placed at PSE/PD interface to suppress induced surges from nearby lightning strikes or power cross-talk. Use Value: AEC-Q101 qualification and 185 °C rating ensure uninterrupted operation in outdoor cabinets exposed to wide ambient temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/57T | Lower peak power (400 W), SMA package (smaller footprint), same VBR range but higher VC (70 V) | Not suitable for automotive load-dump; limited to low-energy consumer/sensor protection | Select when board space is constrained and surge energy < 400 W; verify thermal derating on small pads |
| TPSMC47CAHE3_B/H | Bi-directional variant; identical package, VBR, and PPPM, but adds negative-going transient protection | Required for AC-coupled or bidirectional signal lines (e.g., RS-485, USB D+/D-) | Choose for symmetrical surge threats; note higher leakage and slightly reduced VWM (37.1 V) |
Compared with SMAJ47A-E3/57T and TPSMC47CAHE3_B/H, the TPSMC47AHE3_B/H delivers 3.75× higher surge power handling and automotive-grade reliability in the same SMC footprint - making it the preferred choice for high-energy, high-temperature, unidirectional DC rail protection where AEC-Q101 compliance is mandatory.
Availability
TPSMC47AHE3_B/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power distribution systems requiring stable component supply, AEC-Q101 qualification, and high-temperature surge resilience.
Supply support for TPSMC47AHE3_B/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and automotive-grade validation.
The TPSMC47AHE3_B/H belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh-environment automotive, industrial, and telecom power systems.
FAQ
What is the clamping voltage of the TPSMC47AHE3_B/H at its rated peak pulse current?
The TPSMC47AHE3_B/H has a maximum clamping voltage (VC) of 64.8 V at its rated peak pulse current (IPPM) of 23.1 A, measured using a 10/1000 μs waveform. This value defines the upper voltage limit imposed on the protected circuit during a full-rated surge event and is critical for ensuring downstream components remain within their absolute maximum ratings. The TPSMC47AHE3_B/H achieves this clamping performance while maintaining low incremental surge resistance.
Is the TPSMC47AHE3_B/H qualified for automotive applications?
Yes, the TPSMC47AHE3_B/H carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. It has undergone stress testing per AEC-Q101 including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling - validating its suitability for under-hood and chassis-mounted automotive electronics. The TPSMC47AHE3_B/H operates reliably up to +185 °C junction temperature, exceeding standard automotive requirements.
What does the "B/H" suffix mean in TPSMC47AHE3_B/H?
The "B/H" suffix in TPSMC47AHE3_B/H indicates the packaging configuration: "B" denotes the revision code (document revision B), and "H" specifies the preferred package code - 7-inch diameter plastic tape and reel, with a base quantity of 850 units per reel. This format supports standard SMT pick-and-place equipment and is compatible with J-STD-002 solderability requirements. The TPSMC47AHE3_B/H is not supplied in cut tape or tube variants under this ordering code.
How does the TPSMC47AHE3_B/H compare to bi-directional TVS diodes with the same breakdown voltage?
The TPSMC47AHE3_B/H is unidirectional and therefore provides surge protection only against positive-going transients on the anode-to-cathode path. In contrast, bi-directional variants like TPSMC47CAHE3_B/H protect both polarities but exhibit higher leakage and lower VWM (37.1 V vs. 40.2 V). For DC power rails where only one polarity threat exists - such as automotive battery inputs - the TPSMC47AHE3_B/H offers superior stand-off margin and lower capacitance, preserving signal integrity in adjacent circuits.
What is the thermal derating behavior of the TPSMC47AHE3_B/H above 25 °C ambient?
The TPSMC47AHE3_B/H follows a defined derating curve per Figure 2 in its datasheet: peak pulse power decreases linearly above TA = 25 °C, reaching ~50 % of rated 1500 W at TA ≈ 125 °C when mounted on 8.0 mm × 8.0 mm copper pads. This derating ensures safe operation in high-ambient environments like engine compartments. The TPSMC47AHE3_B/H maintains full functionality up to +185 °C junction temperature, but sustained high-power surges require careful thermal pad design to avoid exceeding TJ limits.
TPSMC47AHE3_B/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:
- 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/H FAQ
1.How can I place an order for TPSMC47AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC47AHE3_B/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 TPSMC47AHE3_B/H reliable?
The price and inventory of TPSMC47AHE3_B/H 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/H is usually 5 days.
3.What payment methods are accepted for TPSMC47AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC47AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC47AHE3_B/H?
TPSMC47AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC47AHE3_B/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 TPSMC47AHE3_B/H?
For technical support, including TPSMC47AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC47AHE3_B/H requirements.
6.How does Aetrix verify that TPSMC47AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMC47AHE3_B/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 TPSMC47AHE3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMC47AHE3_B/H?
All TPSMC47AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC47AHE3_B/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 TPSMC47AHE3_B/H part is unused and in its original packaging.
Return procedure for TPSMC47AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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