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Vishay General Semiconductor - Diodes Division P6SMB47CA-E3/52
- Part No.:
- P6SMB47CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47CA-E3/52.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,992
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Product details
Overview
P6SMB47CA-E3/52 from Vishay General Semiconductor is a bidirectional 47 V transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power (10/1000 μs), 64.8 V maximum clamping voltage at 9.3 A peak pulse current, and 1.0 μA maximum reverse leakage at 40.2 V standoff voltage. It protects signal lines and power rails in automotive sensor interfaces, industrial I/O modules, and telecom surge-prone ports.
For engineers reviewing the P6SMB47CA-E3/52 datasheet, P6SMB47CA-E3/52 pinout, P6SMB47CA-E3/52 application, or P6SMB47CA-E3/52 equivalent, key selection criteria include bidirectional clamping symmetry, 150 °C max junction temperature, RoHS-compliant matte tin terminations, and MSL Level 1 moisture sensitivity for reflow compatibility.
Technical Context
The P6SMB47CA-E3/52 operates as a bidirectional avalanche diode with symmetrical breakdown in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR (44.7–49.4 V) and low incremental surge resistance under repetitive transients.
Designed for surface-mount automated placement, it delivers fast response time (<1 ns) and excellent clamping ratio (VC/VWM = 1.61) while meeting J-STD-020 MSL Level 1 and AEC-Q101 qualification when ordered with HE3/HM3 suffixes - though P6SMB47CA-E3/52 itself is commercial-grade RoHS-compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 40.2 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold. |
| Breakdown Voltage (VBR) | 44.7–49.4 V at 1 mA - Confirmed avalanche initiation range; ensures reliable triggering during ESD or lightning-induced surges. |
| Clamping Voltage (VC) | 64.8 V at 9.3 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case transient; critical for IC-level survivability. |
| Peak Pulse Power (PPPM) | 600 W - Sustained energy absorption capability per transient event; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| Reverse Leakage (ID) | 1.0 μA at VWM - Ultra-low standby current minimizes power loss and avoids false triggering in high-impedance sensing nodes. |
| Junction Temperature Range | –65 to +150 °C - Supports operation in under-hood automotive, industrial control cabinets, and outdoor telecom enclosures. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; reverse-biased during clamping | Bidirectional symmetry means no functional polarity - either terminal serves as anode or cathode depending on transient polarity. |
| Cathode | Current exit terminal in forward bias; reverse-biased during clamping | No marking on bidirectional devices; terminals are electrically identical - no orientation dependency in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe surges per IEC 61000-4-5, eliminating need for cascaded TVS or external current limiting. |
| Glass passivated chip junction | Ensures long-term parameter stability and low leakage drift over temperature and lifetime, critical for mission-critical sensor interfaces. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without preconditioning, reducing manufacturing complexity and cost. |
| Bidirectional clamping symmetry | Provides identical VBR, VC, and IPPM in both directions - essential for protecting AC signals, RS-485 buses, and transformer-coupled interfaces. |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD or LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal pair or supply rail to shunt transient energy before reaching sensitive analog front-end or transceiver IC. Use Value: Maintains signal integrity during 12 V/24 V system transients up to ±100 V, with clamping below 65 V to prevent damage to 5 V or 3.3 V interface ICs. |
Use Scenario: Shielding PLC digital input modules from inductive kickback when switching solenoids, relays, or motor contactors. IC Role / Device Role / Timing Role: Parallel-connected TVS across optocoupler input or Schmitt-trigger input to absorb >600 W surge energy within nanoseconds. Use Value: Prevents latch-up or permanent gate oxide damage in input conditioning ICs by limiting transient voltage to ≤64.8 V at 9.3 A peak current. |
| Telecom Line Interface Protection | Consumer USB/DisplayPort ESD Guard |
|
Use Scenario: Safeguarding Ethernet PHYs, xDSL line drivers, or PoE injectors from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at connector entry point, upstream of common-mode chokes and secondary TVS arrays. Use Value: Clamps differential and common-mode transients simultaneously due to symmetric bidirectional behavior, preserving signal timing margins in 10/100/1000BASE-T systems. |
Use Scenario: Adding board-level ESD immunity to USB 2.0 data lines or DisplayPort AUX channels in laptops and docking stations. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) bidirectional clamp placed directly at connector to divert HBM ±8 kV and CDM ±1 kV discharges. Use Value: Delivers sub-1 ns response with minimal signal distortion - verified by typical junction capacitance curves in datasheet Figure 4 at 1 MHz and zero bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47CA | Same SMB package, identical VWM (40.2 V), VBR (44.7–49.4 V), and VC (64.8 V); rated for 600 W but specified with tighter VBR tolerance (5%) vs. P6SMB47CA-E3/52 (10%). | Preferred where tighter breakdown consistency is required across production lots, e.g., precision analog sensor protection. | Select SMBJ47CA if design requires guaranteed VBR matching within ±5%; otherwise P6SMB47CA-E3/52 offers broader availability and lower cost. |
| 1.5SMC47CA | Higher-power 1500 W variant in larger SMC (DO-214AB) package; same VWM/VBR/VC ratings but 2× footprint area and 2.5× thermal resistance (RθJA = 25 °C/W vs. 100 °C/W). | Suitable for high-energy surge environments (e.g., outdoor base stations) where PCB space allows larger package and higher IPPM (21.2 A). | Choose 1.5SMC47CA only when surge threat exceeds 600 W capability - P6SMB47CA-E3/52 remains optimal for space-constrained, cost-sensitive designs with standard IEC 61000-4-5 compliance needs. |
Compared with SMBJ47CA and 1.5SMC47CA, P6SMB47CA-E3/52 provides the best balance of compact SMB footprint, commercial-grade cost efficiency, and validated 600 W surge handling - making it ideal for high-volume automotive and industrial control applications where layout density and procurement scalability are prioritized.
Availability
P6SMB47CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card protection requiring stable component supply, RoHS compliance, and J-STD-020 MSL Level 1 reflow readiness.
Supply support for P6SMB47CA-E3/52 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, rectifiers, MOSFETs, and passive components with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6SMB Series targets cost-sensitive, high-volume transient suppression needs in consumer, industrial, and automotive electronics - delivering standardized 600 W surge capability in the compact SMB package with scalable AEC-Q101 variants.
FAQ
What is the maximum clamping voltage of the P6SMB47CA-E3/52 under a 10/1000 μs surge?
The P6SMB47CA-E3/52 has a maximum clamping voltage (VC) of 64.8 V at 9.3 A peak pulse current under the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The P6SMB47CA-E3/52 maintains this clamping performance bidirectionally, ensuring consistent protection regardless of surge polarity.
Is the P6SMB47CA-E3/52 suitable for automotive applications?
The P6SMB47CA-E3/52 is RoHS-compliant and qualified to MSL Level 1, but it is not AEC-Q101 certified. For automotive use, Vishay offers the P6SMB47CAHE3_B variant (with HE3 suffix) which carries full AEC-Q101 qualification. Engineers must select P6SMB47CAHE3_B - not P6SMB47CA-E3/52 - for under-hood or safety-critical vehicle subsystems requiring automotive-grade reliability validation.
How does the bidirectional design of the P6SMB47CA-E3/52 affect PCB layout?
The P6SMB47CA-E3/52 has no polarity marking and exhibits identical electrical characteristics in both directions, so PCB layout requires no orientation alignment - either terminal may connect to line or return. This simplifies routing for differential signals like RS-485 or CAN, eliminates risk of reverse installation, and supports symmetric placement across signal pairs without dedicated silkscreen polarity indicators.
What is the thermal resistance of the P6SMB47CA-E3/52, and how does it impact power derating?
The P6SMB47CA-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. At ambient temperatures above 25 °C, its 5.0 W steady-state power dissipation must be linearly derated per Figure 2 in datasheet 88370 - for example, to ~3.5 W at 75 °C ambient. This derating ensures junction temperature stays within the –65 to +150 °C operational limit.
Does the P6SMB47CA-E3/52 meet industry surge immunity standards such as IEC 61000-4-5?
Yes - the P6SMB47CA-E3/52's 600 W peak pulse power rating (10/1000 μs waveform) aligns with Level 3 (1 kV line-earth, 2 kV line-line) and Level 4 (2 kV line-earth, 4 kV line-line) requirements of IEC 61000-4-5 when used with appropriate series impedance. Its 64.8 V clamping voltage ensures protected ICs see voltages well below their absolute maximum ratings during standardized surge testing, provided layout follows Vishay's recommended 0.2" × 0.2" pad dimensions.
P6SMB47CA-E3/52 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB47CA-E3/52 FAQ
1.How can I place an order for P6SMB47CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47CA-E3/52 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 P6SMB47CA-E3/52 reliable?
The price and inventory of P6SMB47CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47CA-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB47CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47CA-E3/52?
P6SMB47CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47CA-E3/52 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 P6SMB47CA-E3/52?
For technical support, including P6SMB47CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47CA-E3/52 requirements.
6.How does Aetrix verify that P6SMB47CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB47CA-E3/52 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 P6SMB47CA-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB47CA-E3/52?
All P6SMB47CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47CA-E3/52, 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 P6SMB47CA-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB47CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47CA-E3/52 Tags
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