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Vishay General Semiconductor - Diodes Division P6SMB47CAHE3_A/I
- Part No.:
- P6SMB47CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47CAHE3_A/I.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB47CAHE3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 47 V standoff 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 - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB47CAHE3_A/I datasheet, P6SMB47CAHE3_A/I pinout, P6SMB47CAHE3_A/I application, or P6SMB47CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (1.38×VWM), RoHS-compliant matte tin terminations, and MSL Level 1 moisture sensitivity.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 μA leakage at 40.2 V), but triggers into low-impedance conduction when reverse voltage exceeds its 44.7–49.4 V breakdown range (IT = 1 mA). Its bidirectional symmetry enables protection of AC-coupled or differential lines without polarity constraints.
Engineered for automotive-grade reliability, P6SMB47CAHE3_A/I meets AEC-Q101 stress testing requirements and is qualified per JESD201 Class 2 whisker resistance. Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to +150 °C junction temperature with derated pulse handling above 25 °C ambient.
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 threshold. |
| VBR (Breakdown) | 44.7–49.4 V at 1 mA - Voltage at which device transitions from high- to low-impedance state; ensures predictable turn-on during transients. |
| VC (Clamping) | 64.8 V at 9.3 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream IC survivability. |
| PPPM | 600 W - Surge energy absorption capacity per pulse; supports repetitive 0.01% duty cycle surges in automotive load-dump scenarios. |
| IPPM | 9.3 A - Peak current the device safely shunts during standardized 10/1000 μs transient; directly relates to PCB trace sizing and layout robustness. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and high-ambient industrial enclosures. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; optimized for automated placement and thermal pad coupling. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to reference plane or ground; completes low-impedance surge path during either polarity excursion. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; forms symmetrical clamping node across protected line pair. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., CAN, RS-485), and ungrounded sensor outputs without polarity concerns. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensor modules, and body electronics requiring extended temperature and reliability compliance. |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/2b/5a surges and IEC 61000-4-5 Level 3 (1 kV/2 kV) transients without degradation. |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak, eliminating bake requirements prior to assembly. |
| Glass passivated junction | Provides stable VBR tolerance and low leakage over time and temperature, critical for long-life industrial deployments. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS diode placed between signal line and chassis ground to clamp transients before reaching ADC input or signal conditioner. Use Value: Limits voltage excursion to ≤64.8 V during 10/1000 μs surges, preserving sensor accuracy and preventing microcontroller reset or latch-up. |
Use Scenario: Safeguarding 24 V DC digital input channels on PLC modules against field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Bidirectional clamping element across input terminal and common rail, absorbing both positive and negative polarity transients. Use Value: Maintains functional integrity during repeated 1 kV contact ESD (IEC 61000-4-2) and 2 kV surge (IEC 61000-4-5), reducing field failure rates. |
| Telecom Line Interface | Consumer Device USB Port |
Use Scenario: Transient suppression on RS-232/RS-485 data lines connecting base station controllers to remote radio units. IC Role / Device Role / Timing Role: Symmetric protection device bridging differential pair (A/B) to ground, leveraging bidirectional behavior for noise immunity. Use Value: Clamps common-mode surges to <65 V while preserving signal integrity up to 10 Mbps due to low capacitance (<100 pF at 0 V). |
Use Scenario: Secondary-level ESD protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Fast-response shunt element diverting human-body-model (HBM) and IEC 61000-4-2 discharges away from USB transceiver IC. Use Value: Achieves >30 kV HBM and >15 kV air discharge ESD robustness without signal distortion, meeting USB-IF compliance requirements. |
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/VC specs but lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (140 °C/W). | Limited to lower-energy transients; unsuitable for automotive load-dump or industrial surge standards requiring 600 W. | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 only. |
| SMCJ47CA | Higher PPPM (1500 W), larger SMC package (DO-214AB), same VWM/VC, AEC-Q101 qualified variant available (SMCJ47CAHE3). | Supports harsher surge environments (e.g., ISO 16750-2) but requires 2.5× PCB area vs. SMB. | Choose when system-level surge testing exceeds 600 W requirements and layout allows larger footprint. |
Compared with SMAJ47CA and SMCJ47CA, P6SMB47CAHE3_A/I delivers optimal balance of 600 W surge capability, AEC-Q101 qualification, and compact SMB footprint - making it the preferred choice for space-constrained automotive and industrial designs requiring certified reliability without over-engineering.
Availability
P6SMB47CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer USB port protection requiring stable component supply and AEC-Q101 compliance.
Supply support for P6SMB47CAHE3_A/I 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 telecom systems - engineered for robust clamping, low leakage, and seamless integration into automated SMT assembly lines.
FAQ
What does the "CA" suffix indicate in P6SMB47CAHE3_A/I?
The "CA" suffix in P6SMB47CAHE3_A/I denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity transients. Unlike unidirectional variants (e.g., P6SMB47A), P6SMB47CAHE3_A/I has no cathode marking and functions identically in either orientation - essential for protecting AC-coupled lines, differential buses, or floating sensor outputs where polarity is undefined.
Is P6SMB47CAHE3_A/I suitable for automotive applications?
Yes, P6SMB47CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix and revision code "_A/I". It undergoes stress testing for temperature cycling, humidity bias, mechanical shock, and ESD per AEC-Q101 Rev D, and is rated for operation from –65 °C to +150 °C - making it appropriate for engine control, ADAS camera modules, and body electronics where reliability under harsh conditions is mandatory.
What is the clamping voltage of P6SMB47CAHE3_A/I at its rated peak pulse current?
The maximum clamping voltage (VC) of P6SMB47CAHE3_A/I is 64.8 V at 9.3 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value represents the highest voltage that will appear across the protected circuit during a worst-case transient event - a critical parameter for ensuring downstream ICs (e.g., microcontrollers or transceivers) remain within their absolute maximum ratings.
How does the SMB package of P6SMB47CAHE3_A/I compare to SMA or SMC alternatives?
The SMB (DO-214AA) package of P6SMB47CAHE3_A/I measures 4.06 mm × 5.59 mm with 2.20 mm height - smaller than SMC (DO-214AB) but larger than SMA (DO-214AC). It offers a balanced trade-off: sufficient thermal mass for 600 W pulse dissipation (RθJA = 100 °C/W), compatibility with standard pick-and-place equipment, and MSL Level 1 reflow readiness - unlike SMA's higher thermal resistance or SMC's larger board area requirement.
Does P6SMB47CAHE3_A/I require a heatsink for standard operation?
No, P6SMB47CAHE3_A/I does not require an external heatsink for transient suppression duty cycles. Its 600 W peak pulse rating assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, and its steady-state power dissipation is limited to 5.0 W at +50 °C ambient. For continuous DC operation, thermal design must ensure junction temperature stays ≤+150 °C using PCB copper area as the primary heat path - no additional heatsink is specified or needed in typical surge-protection applications.
P6SMB47CAHE3_A/I 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/I FAQ
1.How can I place an order for P6SMB47CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47CAHE3_A/I 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/I reliable?
The price and inventory of P6SMB47CAHE3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for P6SMB47CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47CAHE3_A/I?
P6SMB47CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47CAHE3_A/I 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/I?
For technical support, including P6SMB47CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47CAHE3_A/I requirements.
6.How does Aetrix verify that P6SMB47CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB47CAHE3_A/I 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/I meets industry standards.
7.What is the process for return or replacement of P6SMB47CAHE3_A/I?
All P6SMB47CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47CAHE3_A/I, 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/I part is unused and in its original packaging.
Return procedure for P6SMB47CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47CAHE3_A/I Tags
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