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Vishay General Semiconductor - Diodes Division P6SMB47AHE3_B/I
- Part No.:
- P6SMB47AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AHE3_B/I.pdf
- Description:
- 600W,47V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,434
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Product details
Overview
P6SMB47AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 47 V standoff voltage (VWM), 49.4 V maximum breakdown voltage (VBR) at 1 mA, 64.8 V maximum clamping voltage (VC) 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 interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB47AHE3_B/I datasheet, P6SMB47AHE3_B/I pinout, P6SMB47AHE3_B/I application, or P6SMB47AHE3_B/I equivalent, this part delivers AEC-Q101 qualification, low incremental surge resistance, fast response time, and MSL Level 1 moisture sensitivity - critical for high-reliability board-level ESD and surge protection design.
Technical Context
The P6SMB47AHE3_B/I operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (VBR = 44.7–49.4 V). Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM) and robust surge handling under repetitive 10/1000 μs pulses at 0.01% duty cycle.
Thermally, it supports operation from −65 °C to +150 °C junction temperature, with RθJA = 100 °C/W and RθJL = 20 °C/W. The cathode-band-marked SMB package enables automated placement and meets UL 94 V-0 flammability rating.
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 DC/AC operating margin. |
| VBR (Breakdown Voltage) | 44.7–49.4 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 64.8 V at IPPM = 9.3 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream device stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability per single 10/1000 μs pulse. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | +150 °C - Enables use in under-hood automotive and high-temperature industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
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. Cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 48 V rail); conducts during overvoltage events to clamp to VC. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) without derating. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics including engine control units and ADAS sensor interfaces. |
| MSL Level 1, peak reflow ≤260 °C | Supports standard lead-free SMT assembly without pre-baking or special handling. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage across temperature and life cycles. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage overshoot during fast transients, improving system-level immunity. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 48 V battery-supplied ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp spikes above 40.2 V. Use Value: Limits rail voltage to ≤64.8 V during 9.3 A surges, preventing damage to 60 V-rated DC-DC controllers and CAN transceivers. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD (IEC 61000-4-2 ±8 kV) and inductive switching noise. Use Value: Sub-1 μA leakage preserves microamp-level sensor bias accuracy; 64.8 V clamping protects 36 V op-amps and ADC front-ends. |
| Telecom DC Power Input Protection | Consumer Device USB Power Line Clamping |
|
Use Scenario: Safeguarding 48 V PoE-powered switches and base stations against lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on input bulk capacitor rail, coordinated with upstream fuses. Use Value: 600 W rating handles multi-pulse surge events; AEC-Q101 qualification ensures field longevity in outdoor cabinets. |
Use Scenario: Adding secondary surge suppression on 5 V USB-C VBUS lines in portable docking stations. IC Role / Device Role / Timing Role: Secondary TVS after primary polymer fuse, triggered only during extreme overvoltage (>40.2 V). Use Value: Low capacitance (typ. <100 pF) avoids USB 2.0 signal integrity degradation; SMB footprint fits tight layout constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/5B | Same VWM (40.2 V), same SMB package, but rated for 400 W PPPM (vs. 600 W) and not AEC-Q101 qualified. | Limited to commercial-grade consumer/industrial use; insufficient for automotive load dump compliance. | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin. |
| 1.5SMC47A | Same electrical specs (VWM, VBR, VC), but in larger SMC (DO-214AB) package; higher thermal mass but 2.5× PCB area. | Preferred where board space allows and higher thermal dissipation is needed for repetitive surges. | Choose for high-duty-cycle industrial motor drives where RθJA <100 °C/W is required. |
Compared with SMAJ47A-E3/5B and 1.5SMC47A, the P6SMB47AHE3_B/I uniquely combines AEC-Q101 qualification, 600 W surge rating, and minimal SMB footprint - making it optimal for space-constrained automotive and industrial modules requiring validated reliability.
Availability
P6SMB47AHE3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power inputs, and consumer docking stations requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB47AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for board-level transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where AEC-Q101 validation, low clamping voltage, and compact SMB packaging are essential.
FAQ
What is the clamping voltage of the P6SMB47AHE3_B/I under a 10/1000 μs surge?
The P6SMB47AHE3_B/I has a maximum clamping voltage (VC) of 64.8 V at 9.3 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB47AHE3_B/I maintains this clamping performance across its qualified operating temperature range.
Is the P6SMB47AHE3_B/I suitable for automotive applications?
Yes, the P6SMB47AHE3_B/I is AEC-Q101 qualified, as indicated by the "HE3" and "_B" suffixes in its ordering code. It has undergone stress testing for temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements. The P6SMB47AHE3_B/I is explicitly recommended for automotive power rail protection, including 48 V systems subject to load dump and ISO 7637-2 transients.
What does the "_B/I" suffix mean in P6SMB47AHE3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB47AHE3_B/I series (applicable to VWM ≤220 V parts), while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format supports high-volume SMT assembly. The "HE3" portion confirms RoHS-compliant, AEC-Q101-qualified construction with matte tin leads.
How does the P6SMB47AHE3_B/I compare to bidirectional TVS diodes like P6SMB47CA?
The P6SMB47AHE3_B/I is unidirectional and intended for DC line protection where polarity is fixed (e.g., 48 V rail to ground), offering lower leakage (<1.0 μA) and tighter VBR tolerance. In contrast, P6SMB47CA is bidirectional and suited for AC or floating signal lines. The P6SMB47AHE3_B/I cannot replace P6SMB47CA in symmetrical applications without circuit redesign due to polarity dependence.
What is the thermal resistance of the P6SMB47AHE3_B/I, and how does it affect layout?
The P6SMB47AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain TJ ≤150 °C under 600 W pulses, PCB layout must follow Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal. Reducing pad size increases thermal impedance and risks junction overheating during repetitive surges - a key design constraint for the P6SMB47AHE3_B/I.
P6SMB47AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB47AHE3_B/I FAQ
1.How can I place an order for P6SMB47AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AHE3_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 P6SMB47AHE3_B/I reliable?
The price and inventory of P6SMB47AHE3_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 P6SMB47AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB47AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AHE3_B/I?
P6SMB47AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AHE3_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 P6SMB47AHE3_B/I?
For technical support, including P6SMB47AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB47AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB47AHE3_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 P6SMB47AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB47AHE3_B/I?
All P6SMB47AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AHE3_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 P6SMB47AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB47AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47AHE3_B/I Tags
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