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Vishay General Semiconductor - Diodes Division TPSMC47A802HE3_B/I
- Part No.:
- TPSMC47A802HE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC47A802HE3_B/I.pdf
- Description:
- TVS DIODE SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,943
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Product details
Overview
TPSMC47A802HE3_B/I 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 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 peak pulse current (IPPM), and 64.8 V clamping voltage (VC) - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the TPSMC47A802HE3_B/I datasheet, TPSMC47A802HE3_B/I pinout, TPSMC47A802HE3_B/I application, or TPSMC47A802HE3_B/I 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 per J-STD-002 and JESD 22-B102.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress at elevated temperatures. Its 185 °C maximum junction temperature and MSL Level 1 rating support high-reliability automotive and industrial deployments where thermal cycling and long-term stability are critical.
The device operates exclusively in unidirectional mode with cathode-band polarity marking, and achieves 64.8 V clamping at 23.1 A (10/1000 µs), enabling robust protection of 40 V-rated downstream circuitry such as CAN transceivers, microcontroller I/O, and MOSFET gate drivers without forward conduction during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 44.7 / 47.0 / 49.4 V - ensures reliable triggering above system operating voltage while accommodating process variation |
| VWM | 40.2 V - defines maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 64.8 V - clamping voltage limits transient energy delivered to protected ICs during 10/1000 µs surges |
| PPPM | 1500 W - peak pulse power handling capacity for lightning and ESD-induced transients per IEC 61000-4-5 |
| IPPM | 23.1 A - peak surge current capability at rated clamping voltage, validated on 8.0 mm × 8.0 mm copper pads |
| TJ max. | 185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation relative to DC bias |
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 | Transient current return path | Connected to ground or low-impedance reference plane; carries full surge current during clamping |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 40 V supply rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design minimizes parameter drift over temperature and lifetime |
| Clamping performance | 64.8 V clamping at 23.1 A ensures safe margin below 70 V absolute maximum ratings of common 40 V systems |
| Thermal robustness | 185 °C TJ max. supports sustained operation in engine control modules and motor drive inverters |
| Solderability & reliability | Meets J-STD-002 and JESD 22-B102; passes JESD 201 Class 2 whisker test for long-term interconnect integrity |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling per AEC standard |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 40 V battery-supplied ECUs from load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and upstream fuse/diode, absorbing >1500 W surges within nanoseconds. Use Value: Prevents latch-up or permanent damage to 48 V-tolerant microcontrollers and CAN FD transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-leakage (1 µA @ 40.2 V) TVS connected across signal and ground to shunt EFT bursts without affecting DC accuracy. Use Value: Maintains <±0.1% full-scale error during IEC 61000-4-4 EFT testing due to fast response time and minimal capacitance (<100 pF). |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Supply Protection |
Use Scenario: Safeguarding 48 V PoE-powered network switches against induced surges from nearby AC mains switching. IC Role / Device Role / Timing Role: Primary surge suppression stage before DC-DC converter input, rated for repeated 10/1000 µs transients. Use Value: Enables compliance with IEC 61000-4-5 Level 4 (4 kV line-to-ground) without derating or parallel staging. |
Use Scenario: Clamping voltage spikes on isolated 15–20 V gate driver supplies in 3-phase inverter modules. IC Role / Device Role / Timing Role: Fast-response TVS placed across gate driver VDD and GND to suppress Miller-induced overshoot during IGBT turn-off. Use Value: Limits gate-source voltage excursion to <65 V, preventing unintended IGBT turn-on and shoot-through failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/57T | Lower PPPM (400 W), same VBR range, SMA package (smaller thermal mass) | Not AEC-Q101 qualified; unsuitable for automotive under-hood use | Select when cost-sensitive consumer applications require basic 47 V clamping with lower surge duty. |
| 1.5KE47A | Through-hole DO-201 package, higher IFSM (200 A), identical VBR/VC, no AEC-Q101 | Requires manual or wave soldering; incompatible with high-speed SMT lines | Choose for legacy board rework or prototyping where SMT footprint is unavailable. |
Compared with SMAJ47A-E3/57T and 1.5KE47A, the TPSMC47A802HE3_B/I delivers 3.75× higher peak pulse power in an AEC-Q101-qualified SMT package, enabling single-device protection for demanding automotive and industrial surge standards without layout redesign or thermal derating.
Availability
TPSMC47A802HE3_B/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power input stages requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMC47A802HE3_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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The TPSMC47A802HE3_B/I belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for robust transient suppression in harsh-environment applications where thermal stability and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the TPSMC47A802HE3_B/I at its rated peak pulse current?
The TPSMC47A802HE3_B/I has a maximum clamping voltage (VC) of 64.8 V at 23.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC test conditions and ensures protected circuits remain within safe voltage margins during surge events. The TPSMC47A802HE3_B/I maintains this clamping performance across its full operating temperature range.
Is the TPSMC47A802HE3_B/I qualified for automotive applications?
Yes, the TPSMC47A802HE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's documentation for HE3-suffix parts. It undergoes rigorous stress testing including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling to meet automotive reliability requirements. The TPSMC47A802HE3_B/I is explicitly designated for under-hood and chassis-mounted ECUs where junction temperatures up to 185 °C may occur.
What does the "HE3" suffix indicate in TPSMC47A802HE3_B/I?
The "HE3" suffix in TPSMC47A802HE3_B/I denotes a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards. The "B/I" portion specifies packaging: "B" is the revision code, and "I" indicates 3500-unit quantity on 13-inch tape-and-reel. The TPSMC47A802HE3_B/I is not halogen-free - that variant uses the HM3 suffix.
How does the TPSMC47A802HE3_B/I compare to bidirectional TVS diodes in 47 V applications?
The TPSMC47A802HE3_B/I is unidirectional only and must be oriented with cathode toward the protected line, making it suitable for DC-biased rails like 40 V automotive supplies. Bidirectional 47 V TVS devices (e.g., TPSMC47CA) protect both polarities but exhibit higher leakage and reduced clamping efficiency in DC systems. For 40 V DC applications, the TPSMC47A802HE3_B/I provides tighter VWM margin and lower dynamic impedance than equivalent bidirectional parts.
What is the maximum reverse leakage current of the TPSMC47A802HE3_B/I at its stand-off voltage?
The TPSMC47A802HE3_B/I exhibits a maximum reverse leakage current (IR) of 1.0 µA at its 40.2 V stand-off voltage (VWM) and 25 °C ambient temperature. At elevated junction temperature (150 °C), leakage increases to 20 µA - still well within acceptable limits for precision analog and low-power digital circuits. This low leakage preserves system efficiency and prevents false triggering in high-impedance sensing nodes protected by the TPSMC47A802HE3_B/I.
TPSMC47A802HE3_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)
TPSMC47A802HE3_B/I FAQ
1.How can I place an order for TPSMC47A802HE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC47A802HE3_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 TPSMC47A802HE3_B/I reliable?
The price and inventory of TPSMC47A802HE3_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 TPSMC47A802HE3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMC47A802HE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC47A802HE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC47A802HE3_B/I?
TPSMC47A802HE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC47A802HE3_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 TPSMC47A802HE3_B/I?
For technical support, including TPSMC47A802HE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC47A802HE3_B/I requirements.
6.How does Aetrix verify that TPSMC47A802HE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC47A802HE3_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 TPSMC47A802HE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMC47A802HE3_B/I?
All TPSMC47A802HE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC47A802HE3_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 TPSMC47A802HE3_B/I part is unused and in its original packaging.
Return procedure for TPSMC47A802HE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC47A802HE3_B/I Tags
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