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Vishay General Semiconductor - Diodes Division P6SMB47AHE3_B/H
- Part No.:
- P6SMB47AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AHE3_B/H.pdf
- Description:
- 600W,47V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,861
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Product details
Overview
P6SMB47AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 47 V standoff voltage (VWM = 40.2 V), 64.8 V clamping voltage at 9.3 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power electronics.
For engineers reviewing the P6SMB47AHE3_B/H datasheet, P6SMB47AHE3_B/H pinout, P6SMB47AHE3_B/H application, or P6SMB47AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
This TVS diode operates as a clamping device that enters avalanche breakdown when reverse voltage exceeds its breakdown threshold (VBR min = 44.7 V, max = 49.4 V at 1 mA). Its low incremental surge resistance ensures stable clamping under repetitive 10/1000 μs transients at 0.01% duty cycle.
Designed for surface-mount assembly, it features glass-passivated junction, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The cathode band identifies polarity for unidirectional operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 40.2 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping onset |
| VBR (Breakdown) | 44.7–49.4 V at 1 mA - Voltage range where avalanche conduction begins; determines transient detection sensitivity |
| VC (Clamping) | 64.8 V at IPPM = 9.3 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream component survivability |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; enables robust protection against lightning-induced surges |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.0 mm × 5.0 mm thermal pad footprint for effective heat dissipation |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); thermal pad layout requires 5.0 mm × 5.0 mm copper area per terminal per datasheet fig. 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to protected line's low-side reference (e.g., ground or signal return); completes clamping loop during transient |
| Cathode | Avalanche conduction node / Surge sink | Marked with band; connects to protected line (e.g., 48 V rail or sensor input); conducts surge current into anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation in automotive power nets |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units, body controllers, and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage performance across temperature and humidity stress |
| MSL Level 1 rating | Allows single-reflow soldering without moisture-related popcorning; compatible with standard SMT production lines |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure to downstream ICs while maintaining fast response (< 1 ns typical) |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground to shunt surge energy. Use Value: Limits voltage excursion to ≤64.8 V during 600 W pulses, preventing damage to 50 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Standoff protector on 0–10 V or 4–20 mA signal lines exposed to relay coil switching noise. Use Value: Clamps induced spikes within 1 ns, preserving signal integrity and avoiding ADC saturation or false triggering. |
| Telecom DC Power Input | Consumer Power Adapter Output |
|
Use Scenario: Safeguarding PoE-powered equipment inputs against Ethernet cable ESD and surge coupling. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input rail upstream of DC-DC regulation stage. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) and 10/1000 μs surges up to 9.3 A without parameter shift. |
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V USB-C PD adapter outputs. IC Role / Device Role / Timing Role: Final-stage transient limiter before connector to prevent user-port damage during hot-plug events. Use Value: Low leakage (<1 μA at 40.2 V) avoids standby power loss; compact SMB footprint fits tight output filter layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/5B | Same VWM (40.2 V) and VC (64.8 V), but lower PPPM (400 W); SMA package (smaller thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost or board space is prioritized over automotive qualification and 600 W surge headroom |
| 1.5SMC47A | Identical electrical specs, but SMC (DO-214AB) package - larger footprint (7.11 mm × 6.22 mm) and higher RθJA (60 °C/W) | Better thermal handling for sustained surge repetition; less suitable for dense SMT layouts | Choose when system-level thermal management allows larger footprint and higher peak power cycling is required |
Compared with SMAJ47A-E3/5B and 1.5SMC47A, P6SMB47AHE3_B/H uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and full 600 W capability-making it optimal for space-constrained automotive and industrial designs requiring validated reliability.
Availability
P6SMB47AHE3_B/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer adapter designs requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for P6SMB47AHE3_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, and protection devices with emphasis on reliability, power handling, and automotive-grade validation.
The P6SMB Series targets high-reliability transient suppression in harsh environments, designed specifically for AEC-Q101-compliant automotive subsystems and industrial equipment requiring robust 600 W surge immunity.
FAQ
What is the maximum clamping voltage of P6SMB47AHE3_B/H under standard test conditions?
The maximum clamping voltage (VC) of P6SMB47AHE3_B/H is 64.8 V, measured at a peak pulse current (IPPM) of 9.3 A using the standardized 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet revision 09-Jan-2024 and defines the upper voltage limit imposed on protected circuits during surge events. P6SMB47AHE3_B/H maintains this clamping performance across its qualified operating temperature range.
Is P6SMB47AHE3_B/H suitable for automotive applications?
Yes, P6SMB47AHE3_B/H is AEC-Q101 qualified, as indicated by the "HE3" and "_B" suffixes in its ordering code. It has undergone rigorous stress testing-including temperature cycling, high-temperature reverse bias, and mechanical shock-to meet automotive electronic requirements. P6SMB47AHE3_B/H is commonly deployed in engine control modules, body electronics, and ADAS power rails where transient immunity and long-term reliability are mandatory.
What does the "_B/H" suffix in P6SMB47AHE3_B/H signify?
The "_B" denotes AEC-Q101 qualification for the P6SMB47AHE3_B/H series (applicable to models from P6SMB6.8A through P6SMB220A), while "/H" specifies packaging in 7-inch plastic tape-and-reel format with 750 units per reel. This suffix combination confirms both automotive-grade reliability and standard SMT-compatible delivery form. P6SMB47AHE3_B/H is RoHS-compliant and halogen-free per Vishay's material categorization.
How does the SMB package of P6SMB47AHE3_B/H compare thermally to larger packages like SMC?
P6SMB47AHE3_B/H in SMB (DO-214AA) has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, versus ~60 °C/W for the larger SMC (DO-214AB) package used in 1.5SMC47A. While SMB offers superior board-space efficiency, its higher thermal resistance means P6SMB47AHE3_B/H relies more heavily on proper PCB copper pad design (minimum 5.0 mm × 5.0 mm per terminal) to sustain repetitive surges. For single-event protection, P6SMB47AHE3_B/H performs identically to larger variants.
Can P6SMB47AHE3_B/H be used in bidirectional configurations?
No, P6SMB47AHE3_B/H is a unidirectional TVS diode, as confirmed by its part number suffix "A" (not "CA") and cathode-band marking. Bidirectional operation requires the CA variant (e.g., P6SMB47CA). Using P6SMB47AHE3_B/H in reverse-biased AC signal paths would result in forward conduction and failure. Always verify polarity alignment during layout-cathode must connect to the line being protected.
P6SMB47AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- 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):
- 9.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- 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_B/H FAQ
1.How can I place an order for P6SMB47AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AHE3_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 P6SMB47AHE3_B/H reliable?
The price and inventory of P6SMB47AHE3_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 P6SMB47AHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB47AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AHE3_B/H?
P6SMB47AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AHE3_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 P6SMB47AHE3_B/H?
For technical support, including P6SMB47AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AHE3_B/H requirements.
6.How does Aetrix verify that P6SMB47AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB47AHE3_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 P6SMB47AHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB47AHE3_B/H?
All P6SMB47AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AHE3_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 P6SMB47AHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB47AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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