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Vishay General Semiconductor - Diodes Division P6SMB47CAHE3_A/H
- Part No.:
- P6SMB47CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47CAHE3_A/H.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,803
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Product details
Overview
P6SMB47CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 47 V standoff voltage (VWM), 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. It protects signal lines and power rails in automotive sensor units, industrial I/O interfaces, and telecom surge-prone circuits.
For engineers reviewing the P6SMB47CAHE3_A/H datasheet, P6SMB47CAHE3_A/H pinout, P6SMB47CAHE3_A/H application, or P6SMB47CAHE3_A/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification status, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown characteristics in both directions due to its bidirectional construction. It exhibits fast response time (<1 ns), low clamping ratio (VC/VWM = 1.38), and thermal stability up to 150 °C junction temperature.
Designed for repetitive surge events at 0.01 % duty cycle, it delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions while maintaining <1.0 μA reverse leakage at 40.2 V (VWM). Its glass-passivated junction ensures robust ESD immunity and long-term reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 40.2 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 44.7–49.4 V at 1 mA - Confirmed voltage range where device transitions from high-impedance to low-impedance clamping state. |
| VC (Clamping Voltage) | 64.8 V at 9.3 A IPPM - Peak voltage seen across protected circuit during worst-case 10/1000 μs surge; critical for IC survivability. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability under standardized waveform; enables protection against IEC 61000-4-5 Level 3 surges. |
| ID (Reverse Leakage) | <1.0 μA at VWM - Ensures minimal standby power loss and signal integrity in high-impedance sensor or communication lines. |
| TJ max. | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial ambient conditions. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Molding compound meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward conduction mode | Not used in typical TVS protection configuration; bidirectional symmetry means either terminal serves as cathode/anode depending on polarity of transient. |
| Cathode | Current exit terminal in forward conduction mode | No polarity marking on bidirectional devices; terminals are functionally identical - no designated anode/cathode end for P6SMB47CAHE3_A/H. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns - e.g., RS-485, CAN FD, or Ethernet PHY interfaces. |
| 600 W peak pulse power (10/1000 μs) | Supports compliance with IEC 61000-4-5 surge immunity requirements for industrial and automotive equipment up to Level 3 (1 kV line-to-ground). |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control modules, ADAS sensors, and body electronics requiring extended temperature and lifetime reliability. |
| Low profile SMB package | 0.220" × 0.130" footprint with 0.086" height enables dense PCB layout and compatibility with standard SMT pick-and-place equipment. |
| Glass passivated junction | Improves moisture resistance and long-term parameter stability versus epoxy-passivated alternatives, especially in humid or condensing environments. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay or chassis-mounted ECUs exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across sensor supply and ground pins to shunt surge energy away from precision amplifier inputs. Use Value: Maintains signal integrity during 100 V/50 ms load dump events by limiting voltage excursion to ≤64.8 V, preventing ADC saturation or op-amp latch-up in downstream signal conditioning circuitry. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers interfacing with 24 V DC field devices subject to inductive switching noise. IC Role / Device Role / Timing Role: Fast-acting transient suppressor connected between input line and common rail to absorb repetitive 10/1000 μs surges from solenoid or relay coil de-energization. Use Value: Enables reliable operation over >100,000 switching cycles without degradation, thanks to low incremental surge resistance and 0.01 % duty cycle rating. |
| Telecom Line Interface Protection | Consumer USB Port ESD Protection |
|
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges on twisted-pair data lines. IC Role / Device Role / Timing Role: Symmetrical TVS pair (one per line) referenced to ground, leveraging bidirectional behavior to handle differential and common-mode transients equally. Use Value: Clamps common-mode surges to <65 V within <1 ns, preserving transceiver common-mode rejection ratio (CMRR) and preventing latch-up during telecom-grade surge tests. |
Use Scenario: Adding secondary-level surge protection to USB 2.0 data lines (D+/D−) in smart home hubs exposed to user-handling ESD and nearby AC line disturbances. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed differentially across D+ and D− to suppress ±8 kV contact ESD per IEC 61000-4-2 without distorting 480 Mbps signaling. Use Value: Delivers sub-100 pF junction capacitance (typical), ensuring <0.5 dB insertion loss at 240 MHz - critical for maintaining USB eye diagram integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47CA | Same VWM (40.2 V), lower PPPM (400 W), SMA package (larger footprint, higher RθJA) | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 3 compliance | Select when cost sensitivity outweighs surge margin and board space permits larger SMA footprint. |
| SMCJ47CA | Same VWM (40.2 V), higher PPPM (1500 W), SMC package (3.5× larger area, lower RθJA) | Overqualified for most 600 W use cases; adds unnecessary PCB area and thermal mass | Prefer only when system-level testing reveals marginal clamping margin or sustained multi-pulse stress is expected. |
Compared with SMAJ47CA and SMCJ47CA, the P6SMB47CAHE3_A/H provides optimal balance of surge capability, compact SMB footprint, and automotive qualification - delivering verified 600 W clamping performance without over-engineering board area or thermal design.
Availability
P6SMB47CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, AEC-Q101 traceability, and consistent surge performance across production batches.
Supply support for P6SMB47CAHE3_A/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications systems, combining AEC-Q101 qualification, standardized SMB packaging, and precise clamping performance across 6.8 V to 480 V ratings.
FAQ
What does the "CA" suffix indicate in P6SMB47CAHE3_A/H?
The "CA" suffix denotes that the P6SMB47CAHE3_A/H is a bidirectional Transient Voltage Suppressor, meaning it provides symmetrical clamping in both polarities - essential for protecting AC-coupled signals, differential buses like RS-485 or CAN, and ungrounded power rails where polarity reversal may occur during transients.
Is P6SMB47CAHE3_A/H RoHS-compliant and halogen-free?
Yes, the P6SMB47CAHE3_A/H carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. However, it is not halogen-free - that designation requires the HM3 suffix. For halogen-free compliance, the correct variant is P6SMB47CAHM3_A/H, which shares identical electrical specs but uses halogen-free molding compound.
What is the maximum clamping voltage of P6SMB47CAHE3_A/H under standard test conditions?
The maximum clamping voltage (VC) of the P6SMB47CAHE3_A/H is 64.8 V, measured at 9.3 A peak pulse current (IPPM) using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream IC voltage tolerance validation.
Does P6SMB47CAHE3_A/H require a heatsink for normal operation?
No, the P6SMB47CAHE3_A/H is designed for surface-mount operation without external heatsinking. Its thermal resistance junction-to-ambient (RθJA) is 100 °C/W on standard 0.2" × 0.2" copper pads, and its 5.0 W steady-state power dissipation (PD) is sufficient for typical leakage-current loading - heatsinking is only needed if sustained high-duty-cycle surges exceed derated limits.
How does the AEC-Q101 qualification impact the use of P6SMB47CAHE3_A/H in automotive designs?
The AEC-Q101 qualification of P6SMB47CAHE3_A/H validates its reliability for automotive applications including under-hood and chassis-mounted modules. It confirms passing temperature cycling, highly accelerated life testing (HALT), and mechanical shock tests - enabling direct use in ASIL-B compatible systems without additional component-level qualification effort.
P6SMB47CAHE3_A/H 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:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB47CAHE3_A/H FAQ
1.How can I place an order for P6SMB47CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47CAHE3_A/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 P6SMB47CAHE3_A/H reliable?
The price and inventory of P6SMB47CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB47CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47CAHE3_A/H?
P6SMB47CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47CAHE3_A/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 P6SMB47CAHE3_A/H?
For technical support, including P6SMB47CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB47CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB47CAHE3_A/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 P6SMB47CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB47CAHE3_A/H?
All P6SMB47CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47CAHE3_A/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 P6SMB47CAHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB47CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47CAHE3_A/H Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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