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Vishay General Semiconductor - Diodes Division P6SMB47AHE3/52
- Part No.:
- P6SMB47AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AHE3/52.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,139
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Product details
Overview
P6SMB47AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping transient overvoltages on power and signal lines. It features a 47 V breakdown voltage (VBR min = 44.7 V, max = 49.4 V), 40.2 V stand-off voltage (VWM), 64.8 V maximum clamping voltage (VC) at 9.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB47AHE3/52 datasheet, P6SMB47AHE3/52 pinout, P6SMB47AHE3/52 application, or P6SMB47AHE3/52 equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, clamping performance under repetitive transients, and thermal resistance (RθJA = 100 °C/W) for board-level layout validation.
Technical Context
The P6SMB47AHE3/52 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling precise clamping during fast-rising ESD or inductive-switching transients.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it delivers 600 W peak pulse power with 0.01 % duty cycle and meets MSL Level 1 per J-STD-020 (reflow peak 260 °C). The cathode band identifies polarity, and its matte tin-plated terminals comply with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V - defines guaranteed avalanche conduction onset range at 1 mA test current; critical for margin-based overvoltage protection design |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets safe DC bias limit |
| VC @ IPPM | 64.8 V at 9.3 A - clamped voltage during 10/1000 µs transient; determines protected circuit's maximum stress level |
| PPPM | 600 W - peak pulse power handling capability; defines survivability against standardized lightning/surge waveforms |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance; informs minimum copper pad area (0.2" × 0.2") required for thermal derating |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode identified by a single band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (reverse-biased during protection) | Connected to lower-potential side of protected line; forms return path during clamping |
| Cathode | Avalanche conduction terminal (reverse-biased during protection) | Connected to higher-potential side (e.g., VIN rail); initiates clamping when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 surge events without derating in compact layouts |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics requiring zero-failure field reliability |
| Glass passivated junction | Ensures ±5 % VBR tolerance and stable leakage (<1 µA at VWM) across temperature and lifetime |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without preconditioning; eliminates moisture-related popcorning risk |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 3.3 V/5 V logic rails |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients up to ISO 7637-2 Pulse 5a (110 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges before they reach downstream DC/DC converters and microcontrollers. Use Value: Clamps to 64.8 V at 9.3 A, limiting stress on 40 V-rated input stages while surviving 600 W pulses without degradation. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in PLC modules exposed to relay-coil switching noise. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to shunt inductive kickback from 24 V solenoid drivers. Use Value: Sub-1 ns response time and 40.2 V VWM ensure no interference with 0–10 V sensor signals while suppressing >1 kV transients. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Front-end protection on PoE-powered network switches subjected to lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each data pair, referenced to isolated ground plane. Use Value: 600 W rating and DO-214AA footprint allow cost-effective placement without discrete MOVs or gas tubes. |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for smart home devices after rectification. IC Role / Device Role / Timing Role: TVS across bulk capacitor to absorb residual transients escaping primary-side Y-cap filtering. Use Value: AEC-Q101 qualification ensures long-term stability under thermal cycling in enclosed adapter housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/52 | Same VBR (44.7–49.4 V), but 400 W PPPM; SMA package (smaller, higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a without parallel staging | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin with reduced copper area |
| 1.5SMC47A | Same electrical specs, but SMC (DO-214AB) package: larger footprint, lower RθJA = 60 °C/W, 1500 W PPPM | Overqualified for most 600 W use cases; requires more PCB area and higher assembly cost | Choose when extended thermal headroom or legacy SMC footprint compatibility is required; not drop-in for SMB layouts |
Compared with SMAJ47A-E3/52, P6SMB47AHE3/52 delivers 50 % higher surge power handling in the same SMB footprint; versus 1.5SMC47A, it reduces board area by 35 % while maintaining full AEC-Q101 compliance and sufficient clamping margin for automotive Grade 3 systems.
Availability
P6SMB47AHE3/52 is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, telecom line cards, and consumer power adapters requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for P6SMB47AHE3/52 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 and application-specific performance.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure, combining AEC-Q101 qualification, 600 W surge capability, and SMB packaging for automated manufacturing.
FAQ
What is the breakdown voltage tolerance for P6SMB47AHE3/52?
The P6SMB47AHE3/52 has a breakdown voltage (VBR) range of 44.7 V to 49.4 V at 1 mA test current, corresponding to a ±5 % tolerance around the nominal 47 V rating. This tight tolerance ensures predictable clamping behavior across production lots and temperature ranges, critical for protecting 48 V nominal systems where overvoltage margins are narrow. The value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay P6SMB datasheet revision 09-Jan-2024.
Is P6SMB47AHE3/52 suitable for automotive applications?
Yes, P6SMB47AHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix, and is explicitly rated for automotive use per Vishay's ordering information and mechanical data. It supports operating junction temperatures from –65 °C to +150 °C and passes stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101. The device is deployed in engine control modules, body controllers, and ADAS sensor power rails where ISO 7637-2 compliance is required.
What is the maximum clamping voltage of P6SMB47AHE3/52 under surge conditions?
The maximum clamping voltage (VC) of P6SMB47AHE3/52 is 64.8 V at 9.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. It is measured under standardized test conditions (mounted on 0.2" × 0.2" copper pads) and guarantees protection for 40 V-rated components when properly decoupled. The clamping ratio (VC/VBR(min)) is 1.45, indicating efficient avalanche response.
Does P6SMB47AHE3/52 have a bidirectional variant?
No, P6SMB47AHE3/52 is strictly unidirectional, as denoted by the "A" suffix (e.g., P6SMB47A). Bidirectional variants use the "CA" suffix (e.g., P6SMB47CA) and exhibit symmetrical clamping in both polarities. The unidirectional configuration of P6SMB47AHE3/52 provides superior forward conduction characteristics for DC-biased lines and avoids ambiguity in polarity-sensitive placements such as input rails referenced to ground. Always verify polarity marking (cathode band) during layout.
What is the thermal resistance of P6SMB47AHE3/52, and how does it affect layout?
The P6SMB47AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts sustained power dissipation: at 5.0 W steady-state (PD), junction temperature rise is ~500 °C above ambient - hence the rating applies only to short-duration pulses. For reliable operation, maintain minimum pad dimensions and avoid excessive copper isolation; thermal derating curves in Figure 2 of the datasheet must be applied above 25 °C ambient.
P6SMB47AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 9.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB47AHE3/52 FAQ
1.How can I place an order for P6SMB47AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AHE3/52 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 P6SMB47AHE3/52 reliable?
The price and inventory of P6SMB47AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB47AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AHE3/52?
P6SMB47AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AHE3/52 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 P6SMB47AHE3/52?
For technical support, including P6SMB47AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AHE3/52 requirements.
6.How does Aetrix verify that P6SMB47AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB47AHE3/52 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 P6SMB47AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB47AHE3/52?
All P6SMB47AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AHE3/52, 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 P6SMB47AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB47AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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