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Vishay General Semiconductor - Diodes Division P6SMB47CAHE3_B/I
- Part No.:
- P6SMB47CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47CAHE3_B/I.pdf
- Description:
- 600W,47V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,068
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Product details
Overview
P6SMB47CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 47 V standoff voltage (VWM), 64.8 V maximum clamping voltage at 9.3 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial systems.
For engineers reviewing the P6SMB47CAHE3_B/I datasheet, P6SMB47CAHE3_B/I pinout, P6SMB47CAHE3_B/I application, or P6SMB47CAHE3_B/I equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and thermal performance under repetitive surge conditions.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 44.7–49.4 V (min/max) at 1 mA test current. Its low incremental surge resistance ensures stable clamping during fast transients, and its glass-passivated junction enables reliable operation up to 150 °C junction temperature.
The device meets J-STD-020 MSL Level 1 moisture sensitivity and supports automated SMT placement. Its 100 °C/W junction-to-ambient thermal resistance is measured on 0.2" × 0.2" copper pads - critical for derating calculations in high-duty-cycle surge environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 40.2 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 44.7–49.4 V at 1 mA - Voltage at which device enters avalanche conduction; determines transient response onset |
| VC (Clamping Voltage) | 64.8 V at 9.3 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; limits stress on downstream components |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability per single 10/1000 μs transient; enables robust protection in noisy environments |
| ID (Reverse Leakage) | 1.0 μA at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits |
| TJ max | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial enclosures |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress-test requirements including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Accepts surge current during positive voltage excursions; connects to line being protected |
| Cathode | Transient current entry (negative half-cycle) | Accepts surge current during negative voltage excursions; completes bidirectional clamping path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| AEC-Q101 qualification | Validates reliability for automotive control units, body electronics, and ADAS sensor interfaces |
| 600 W peak pulse power | Handles IEC 61000-4-5 surge events (e.g., 4 kV line-to-ground) without degradation |
| MSL Level 1 rating | Permits unlimited floor life and reflow at 260 °C peak - compatible with standard lead-free SMT processes |
| Glass-passivated junction | Improves long-term stability and reduces parameter drift under thermal cycling and humidity stress |
Applications
| Automotive Sensor Signal Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting analog outputs of pressure/temperature sensors in engine control modules exposed to load-dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamps ± transients on differential or single-ended sensor lines before they reach ADC inputs or signal conditioners. Use Value: Maintains signal fidelity under ISO 7637-2 Pulse 1/2/5a stress while enabling compact layout with no polarity concerns. |
Use Scenario: Safeguarding CAN_H/CAN_L lines in factory automation gateways against ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response TVS limits bus voltage excursions to < ±65 V during 8-kV contact ESD (IEC 61000-4-2), preserving data integrity. Use Value: Prevents CAN controller latch-up or PHY damage without adding series impedance or signal delay. |
| Power Supply Input Stage | Consumer USB Port ESD Protection |
|
Use Scenario: Secondary-side transient suppression on 24 V DC input rails feeding PLC I/O modules or motor drivers. IC Role / Device Role / Timing Role: Absorbs 600 W surges from relay coil flyback or field wiring coupling, limiting rail collapse to safe levels. Use Value: Eliminates need for bulkier TVS arrays while meeting UL 61000-4-5 Level 3 (2 kV line-earth) immunity requirements. |
Use Scenario: Board-level ESD protection on USB 2.0 D+/D− lines in smart home hubs and portable audio devices. IC Role / Device Role / Timing Role: Clamps fast-rising ESD pulses (<1 ns rise time) before they couple into USB transceivers or microcontrollers. Use Value: Achieves >15 kV air/8 kV contact ESD immunity (IEC 61000-4-2) with minimal capacitance impact on signal 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) and VC (64.8 V), but 400 W PPPM rating and SMA package (higher RθJA) | Limited to lower-energy transients; less suitable for IEC 61000-4-5 compliance in industrial settings | Select when board space is constrained and surge energy is ≤400 W; verify thermal derating on small pads |
| 1.5KE47CA | Higher PPPM (1500 W), axial-leaded DO-201 package, slower response due to higher parasitic inductance | Not SMT-compatible; unsuitable for high-density or automated assembly; better for chassis-level primary protection | Choose for cost-sensitive, non-SMT designs where PCB real estate is not constrained and peak currents exceed 9.3 A |
Compared with P6SMB47CAHE3_B/I, SMAJ47CA offers smaller footprint but reduced surge handling, while 1.5KE47CA delivers higher power rating at the expense of SMT compatibility and speed - making P6SMB47CAHE3_B/I optimal for AEC-Q101-compliant, high-reliability SMT deployments.
Availability
P6SMB47CAHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, and consumer USB port protection requiring stable component supply across multi-year production cycles.
Supply support for P6SMB47CAHE3_B/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, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The P6SMB Series targets high-energy transient suppression in space-constrained SMT applications, with design focus on AEC-Q101 compliance, low clamping voltage, and repeatable surge performance for automotive and industrial end equipment.
FAQ
What does the "CA" suffix indicate in P6SMB47CAHE3_B/I?
The "CA" suffix denotes a bidirectional configuration - meaning P6SMB47CAHE3_B/I provides symmetrical clamping for both positive and negative voltage transients without polarity marking. This differs from unidirectional variants (e.g., P6SMB47A), which require correct cathode orientation and only clamp in one direction. The CA version is ideal for AC-coupled lines, differential buses like CAN, or floating sensor outputs where voltage polarity is undefined.
Is P6SMB47CAHE3_B/I RoHS-compliant and halogen-free?
Yes, P6SMB47CAHE3_B/I 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 (e.g., P6SMB47CAHM3_B/I). The HE3 variant uses standard matte tin plating and meets JESD 201 Class 2 whisker resistance, making it suitable for commercial and automotive applications where halogen content is not restricted.
How does the "_B/I" ordering code affect P6SMB47CAHE3_B/I's packaging and logistics?
The "_B/I" suffix specifies AEC-Q101 qualification ("B") and 13-inch tape-and-reel delivery ("I"), containing 3200 units per reel. This contrasts with "_B/H", which uses 7-inch reels (750 units). The "I" format supports high-volume SMT line efficiency and reduces changeover frequency, while the "B" revision confirms compliance with automotive stress-test requirements including HTGB, TCT, and H3TRB per AEC-Q101.
What is the maximum clamping voltage of P6SMB47CAHE3_B/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB47CAHE3_B/I is 64.8 V at 9.3 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value represents the worst-case voltage imposed on the protected circuit during a standardized surge event - critical for ensuring downstream components (e.g., 5 V or 3.3 V logic ICs) remain within absolute maximum ratings even under full-rated transient stress.
Can P6SMB47CAHE3_B/I replace P6SMB47A in an existing design?
No - P6SMB47CAHE3_B/I is bidirectional, while P6SMB47A is unidirectional and marked with a cathode band. Substituting them requires verifying circuit topology: P6SMB47CAHE3_B/I may be used in place of P6SMB47A only if the protected node is floating or AC-coupled and polarity is irrelevant. In DC-biased lines (e.g., 12 V supply rail), using the bidirectional part eliminates polarity concerns but does not improve clamping performance - and may increase leakage slightly due to dual-junction structure.
P6SMB47CAHE3_B/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:
- 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:
- Telecom
- 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_B/I FAQ
1.How can I place an order for P6SMB47CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47CAHE3_B/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_B/I reliable?
The price and inventory of P6SMB47CAHE3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB47CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47CAHE3_B/I?
P6SMB47CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47CAHE3_B/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_B/I?
For technical support, including P6SMB47CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB47CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB47CAHE3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB47CAHE3_B/I?
All P6SMB47CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47CAHE3_B/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_B/I part is unused and in its original packaging.
Return procedure for P6SMB47CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47CAHE3_B/I Tags
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Diodes Incorporated
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Diodes Incorporated
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