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Vishay General Semiconductor - Diodes Division P6SMB47CAHE3/5B
- Part No.:
- P6SMB47CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47CAHE3/5B.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,450
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Product details
Overview
P6SMB47CAHE3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 47 V standoff voltage (VWM), 64.8 V maximum clamping voltage at 9.3 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the P6SMB47CAHE3/5B datasheet, P6SMB47CAHE3/5B pinout, P6SMB47CAHE3/5B application, or P6SMB47CAHE3/5B equivalent, this device delivers AEC-Q101 qualification, low incremental surge resistance, fast response time, and bidirectional symmetry for robust ESD and lightning surge protection without polarity constraints.
Technical Context
The P6SMB47CAHE3/5B operates as a bidirectional avalanche diode with symmetrical breakdown behavior in both polarities, enabling use on AC-coupled or floating signal lines. Its glass-passivated junction ensures stable leakage (<1.0 μA at 40.2 V) and repeatable clamping performance across temperature.
Thermal design is supported by RθJA = 100 °C/W and RθJL = 20 °C/W, with derating above 25 °C per Figure 2. The device meets J-STD-020 MSL Level 1 and withstands 260 °C lead-free reflow, making it suitable for high-reliability automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 40.2 V - Maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown) | 44.7–49.4 V at 1 mA - Voltage at which avalanche conduction initiates; tight tolerance ensures predictable turn-on. |
| VC (Clamping) | 64.8 V at 9.3 A IPPM - Peak voltage seen by downstream components during 10/1000 μs surge; limits stress on sensitive nodes. |
| PPPM | 600 W - Peak pulse power handling capability under standardized 10/1000 μs waveform; validates surge immunity level. |
| IPPM | 9.3 A - Maximum non-repetitive surge current the device safely clamps; derived from VC and PPPM. |
| TJ max. | 150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial ambient conditions. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
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. No polarity marking - bidirectional configuration eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Both terminals function identically; no DC polarity dependency - ideal for AC lines, differential buses, or floating sensors. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-line) without external series impedance. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain, body control, and ADAS modules requiring zero-defect reliability over lifetime. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure during transients - critical for 3.3 V/5 V logic and low-voltage MOSFET gate drivers. |
| MSL Level 1, 260 °C reflow compatible | Supports single-pass lead-free assembly without preconditioning or special handling in high-volume SMT lines. |
| Glass passivated junction | Ensures long-term stability of leakage current and breakdown voltage across humidity, temperature, and bias stress. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Transient Suppression |
|---|---|
|
Use Scenario: Protecting analog output pins of pressure, temperature, and position sensors in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before signal conditioning stage. Use Value: Maintains signal integrity below 64.8 V during 100 V/50 ms load dump events, preventing ADC saturation and firmware lockup. |
Use Scenario: Guarding CAN_H and CAN_L lines in vehicle body electronics against ESD (IEC 61000-4-2 ±8 kV) and burst noise (IEC 61000-4-4). IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor mounted directly at connector entry point to shunt energy before transceiver. Use Value: Clamps common-mode surges to <65 V while preserving CAN signal edge fidelity due to sub-100 ps response time. |
| Consumer Power Adapter Output Protection | Telecom DSL Line Surge Protection |
|
Use Scenario: Safeguarding 5 V/12 V USB-C PD and wall adapter outputs against accidental short-circuit-induced back-EMF and hot-plug spikes. IC Role / Device Role / Timing Role: Secondary-side TVS placed after DC-DC converter to absorb inductive kickback from cable capacitance discharge. Use Value: Limits output overshoot to ≤64.8 V during 1 A/10 μs transients, preventing damage to connected devices' USB PHYs. |
Use Scenario: Front-end protection for ADSL/VDSL line interface ICs subjected to lightning-induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Bidirectional suppressor bridging tip/ring lines to ground, rated for repeated 600 W surges per ITU-T K.20/K.21. Use Value: Withstands 10/1000 μs surges up to 4 kV without degradation, meeting GR-1089-CORE telecom immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47CA | Same 47 V VWM, but 400 W PPPM; SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; less suitable for automotive load dump where 600 W margin is required. | Select when board space is constrained and surge threat level is limited to IEC 61000-4-5 Level 2. |
| SMCJ47CA | Same 47 V VWM, 1500 W PPPM; larger SMC (DO-214AB) package with lower RθJA = 50 °C/W. | Over-specified for most 600 W use cases; adds cost and PCB area without functional benefit in standard protection roles. | Choose only when system-level testing reveals marginal clamping margin with P6SMB47CAHE3/5B under worst-case thermal conditions. |
Compared with SMAJ47CA and SMCJ47CA, the P6SMB47CAHE3/5B delivers optimal balance of 600 W surge capacity, AEC-Q101 qualification, SMB footprint compatibility, and thermal performance - making it the preferred choice for automotive and industrial designs requiring validated reliability without over-engineering.
Availability
P6SMB47CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus hardening, and telecom DSL line safeguarding requiring stable component supply across multi-year production cycles.
Supply support for P6SMB47CAHE3/5B 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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB Series targets high-volume, high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for AEC-Q101 compliance, automated assembly, and consistent clamping performance across temperature and life cycle.
FAQ
What does the "CA" suffix indicate in P6SMB47CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration: the P6SMB47CAHE3/5B provides symmetrical clamping in both forward and reverse directions, eliminating polarity sensitivity. This makes it ideal for AC-coupled lines, differential buses like CAN or RS-485, and floating sensor outputs where voltage transients can occur with either polarity - unlike unidirectional "A" variants that require correct cathode orientation.
Is P6SMB47CAHE3/5B suitable for automotive applications?
Yes - the "HE3" suffix confirms AEC-Q101 qualification, meaning the P6SMB47CAHE3/5B has passed rigorous automotive reliability tests including temperature cycling, highly accelerated life testing (HALT), and ESD immunity. It is widely deployed in engine control units, body control modules, and ADAS sensor interfaces where sustained operation at 150 °C junction temperature and immunity to load dump pulses are mandatory.
How does the clamping voltage of P6SMB47CAHE3/5B compare to its standoff voltage?
The P6SMB47CAHE3/5B has a 40.2 V standoff voltage (VWM) and clamps to 64.8 V at 9.3 A peak pulse current - yielding a clamping ratio of ~1.61. This ratio reflects real-world avalanche behavior: the device remains non-conductive below 40.2 V, then transitions rapidly into low-impedance conduction above ~47 V (VBR min), limiting downstream voltage to ≤64.8 V during standardized 10/1000 μs surges.
What is the significance of the "5B" in P6SMB47CAHE3/5B?
The "5B" denotes the packaging format: 13-inch diameter plastic tape and reel containing 3200 units. This large-reel configuration supports high-throughput SMT assembly lines and reduces changeover frequency versus smaller 7-inch reels (e.g., "52" = 750 units). The "HE3" portion confirms RoHS-compliant, AEC-Q101-qualified construction, while "CA" specifies bidirectional functionality - all encoded in the full P6SMB47CAHE3/5B ordering code.
Can P6SMB47CAHE3/5B replace older P6SMB47CA-E3/5B parts?
Yes - the P6SMB47CAHE3/5B is a direct replacement for P6SMB47CA-E3/5B with identical electrical specs, SMB package dimensions, and soldering profile. The "HE3" suffix adds AEC-Q101 qualification and updated RoHS compliance, while maintaining full form-fit-function compatibility. No PCB layout or firmware changes are needed when upgrading from E3 to HE3 in existing designs requiring enhanced automotive reliability validation.
P6SMB47CAHE3/5B 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:
- Discontinued at Digi-Key
- 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)
P6SMB47CAHE3/5B FAQ
1.How can I place an order for P6SMB47CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47CAHE3/5B 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 P6SMB47CAHE3/5B reliable?
The price and inventory of P6SMB47CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47CAHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB47CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47CAHE3/5B?
P6SMB47CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47CAHE3/5B 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 P6SMB47CAHE3/5B?
For technical support, including P6SMB47CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47CAHE3/5B requirements.
6.How does Aetrix verify that P6SMB47CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB47CAHE3/5B 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 P6SMB47CAHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB47CAHE3/5B?
All P6SMB47CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47CAHE3/5B, 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 P6SMB47CAHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB47CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47CAHE3/5B Tags
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