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Vishay General Semiconductor - Diodes Division P6SMB47A-E3/5B
- Part No.:
- P6SMB47A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47A-E3/5B.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB47A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 47 V standoff voltage (VWM), 49.4 V maximum breakdown voltage (VBR), 64.8 V clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB47A-E3/5B datasheet, P6SMB47A-E3/5B pinout, P6SMB47A-E3/5B application, or P6SMB47A-E3/5B equivalent, key selection criteria include unidirectional polarity, 40.2 V reverse standoff rating, 1.0 μA max leakage at VWM, thermal resistance of 100 °C/W (junction-to-ambient), and AEC-Q101 qualification eligibility via HE3/HM3 variants.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its reverse standoff voltage (VWM = 40.2 V), then rapidly transitions to low-impedance conduction above its breakdown threshold (VBR min = 44.7 V). Its glass-passivated junction ensures stable avalanche behavior under repetitive transient stress.
It delivers 600 W peak pulse power handling per 10/1000 μs waveform at 0.01 % duty cycle, with clamping voltage limited to 64.8 V at 9.3 A IPPM. Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, requiring minimum 0.2" × 0.2" copper pads for rated derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 40.2 V - Maximum continuous reverse voltage before significant leakage; defines operating margin before clamping begins. |
| VBR (Breakdown) | 44.7–49.4 V at 1.0 mA - Avalanche onset range; ensures reliable turn-on during transients without premature conduction. |
| VC (Clamping) | 64.8 V at 9.3 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; determines downstream component voltage stress. |
| PPPM | 600 W - Peak transient energy absorption capability; supports robust protection against lightning-induced or inductive-switching surges. |
| ID (Leakage) | 1.0 μA max at VWM - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in sensitive circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in high-ambient industrial and automotive under-hood environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or common return path; completes clamping loop during transient events. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 48 V rail or sensor output); carries surge current into anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24–48 V systems without parallel staging. |
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics over 1000+ transient cycles with <±5 % VBR drift. |
| MSL Level 1 (260 °C) | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving protection margin for sub-100 ns edge rates. |
| AEC-Q101 qualified option | HE3/HM3 suffix variants meet automotive-grade reliability requirements for engine control, body electronics, and ADAS sensors. |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
Use Scenario: 48 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to limit transient overvoltage to ≤65 V. Use Value: Prevents damage to upstream DC-DC controllers and downstream microcontrollers by limiting clamped voltage to 64.8 V at 9.3 A surge. |
Use Scenario: CAN FD or LIN bus line in vehicle door module subjected to ESD and battery feed-back transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal line referenced to local ground, absorbing ±25 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity with only 1.0 μA leakage at 40.2 V, avoiding false triggering or bias shift in 12 V sensor reference networks. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: 48 V phantom power line in VoIP phone base station encountering lightning-induced surges on PoE-like distribution. IC Role / Device Role / Timing Role: Primary clamping device on DC feed line, coordinated with secondary GDT or MOV for staged protection. Use Value: Delivers 600 W peak power handling with 64.8 V clamping, enabling compliance with GR-1089-CORE Level 3 (2 kV ring wave). |
Use Scenario: Brushless DC motor driver PCB where gate drivers are vulnerable to back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Localized TVS across half-bridge supply rails (e.g., between HV and LV rails) to suppress inductive kickback. Use Value: Fast response time and low Rsurge limit voltage overshoot to safe levels for 100 V-rated MOSFETs, reducing need for oversized devices. |
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 SMB package but lower PPPM (400 W), higher VC (67.0 V at 8.2 A), and wider VBR tolerance (44.7–51.7 V). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without derating. | Select when cost sensitivity outweighs peak power margin and system-level surge test compliance is less stringent. |
| 1.5SMC47A | Same electrical specs but in larger SMC (DO-214AB) package (7.11 mm × 6.22 mm); RθJA = 30 °C/W vs. 100 °C/W. | Better thermal performance allows higher sustained surge repetition; requires larger PCB area and different layout. | Choose when thermal management dominates design constraints and board space permits larger footprint. |
Compared with SMAJ47A-E3/5B and 1.5SMC47A, the P6SMB47A-E3/5B uniquely balances 600 W surge capacity, SMB footprint efficiency, and 1.0 μA leakage - making it optimal for space-constrained 48 V industrial modules requiring full IEC 61000-4-5 compliance without thermal derating penalties.
Availability
P6SMB47A-E3/5B is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, telecom line cards, and consumer appliance motor drives requiring stable component supply and RoHS-compliant manufacturing.
Supply support for P6SMB47A-E3/5B 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, power handling, and automotive qualification.
The P6SMB Series targets high-energy transient suppression in compact surface-mount formats, engineered specifically for industrial automation, transportation electronics, and infrastructure equipment where space, surge margin, and long-term stability are critical.
FAQ
What is the maximum clamping voltage of the P6SMB47A-E3/5B under standard test conditions?
The P6SMB47A-E3/5B has a maximum clamping voltage (VC) of 64.8 V when subjected to a 10/1000 μs waveform at 9.3 A peak pulse current (IPPM). This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB47A-E3/5B maintains this clamping performance across its specified operating temperature range of –65 °C to +150 °C.
Is the P6SMB47A-E3/5B RoHS-compliant and halogen-free?
Yes, the P6SMB47A-E3/5B carries the "E3" suffix, indicating it is RoHS-compliant and manufactured to commercial-grade specifications per Vishay's material categorization standard. It is not halogen-free; for halogen-free compliance, the "M3" variant (e.g., P6SMB47A-M3/5B) must be selected. Both E3 and M3 versions meet JESD 201 Class 2 whisker resistance requirements.
Does the P6SMB47A-E3/5B have AEC-Q101 qualification?
The base P6SMB47A-E3/5B is not AEC-Q101 qualified. However, Vishay offers automotive-grade variants under the HE3 and HM3 suffixes (e.g., P6SMB47AHE3_B), which are fully AEC-Q101 qualified and marked with revision code "B". These variants retain identical electrical characteristics but undergo additional stress testing for automotive use cases such as body control modules and ADAS sensor units.
What is the thermal resistance of the P6SMB47A-E3/5B and how does it affect layout?
The P6SMB47A-E3/5B 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 high RθJA necessitates adherence to Vishay's recommended pad layout to avoid thermal derating; using smaller pads or insufficient copper area will reduce surge current capability and accelerate junction temperature rise during repetitive pulses.
How does the P6SMB47A-E3/5B differ from bidirectional variants like P6SMB47CA?
The P6SMB47A-E3/5B is unidirectional, featuring a cathode band and conducting only in reverse bias above VBR - ideal for DC rail protection. In contrast, P6SMB47CA is bidirectional with symmetrical clamping in both polarities, no polarity marking, and slightly lower VWM (36.8 V vs. 40.2 V). The P6SMB47A-E3/5B provides tighter leakage control (1.0 μA vs. 1.0 μA at same VWM) and is preferred for single-polarity 48 V systems where forward conduction must be blocked.
P6SMB47A-E3/5B 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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB47A-E3/5B FAQ
1.How can I place an order for P6SMB47A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47A-E3/5B 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 P6SMB47A-E3/5B reliable?
The price and inventory of P6SMB47A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB47A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47A-E3/5B?
P6SMB47A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47A-E3/5B 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 P6SMB47A-E3/5B?
For technical support, including P6SMB47A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47A-E3/5B requirements.
6.How does Aetrix verify that P6SMB47A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB47A-E3/5B 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 P6SMB47A-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB47A-E3/5B?
All P6SMB47A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47A-E3/5B, 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 P6SMB47A-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB47A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47A-E3/5B Tags
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