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Vishay General Semiconductor - Diodes Division P6SMB47AHE3_A/H
- Part No.:
- P6SMB47AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AHE3_A/H.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB47AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 40.2 V stand-off voltage (VWM), 44.7–49.4 V 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 rating with 10/1000 µs waveform - deployed in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P6SMB47AHE3_A/H datasheet, P6SMB47AHE3_A/H pinout, P6SMB47AHE3_A/H application, or P6SMB47AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by transient overvoltage events, leveraging an avalanche breakdown mechanism to divert surge energy away from protected circuitry. Its glass-passivated junction ensures stable reverse leakage (<1 µA at VWM) and fast response time (<1 ns), while the unidirectional configuration enables integration into DC-biased lines without forward conduction interference.
The device is rated for repetitive 10/1000 µs surges at 0.01% duty cycle and derates linearly above 25 °C ambient per Fig. 2, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 40.2 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin. |
| VBR (Breakdown) | 44.7–49.4 V at 1 mA - Avalanche onset range; ensures reliable triggering above normal operating voltage. |
| VC (Clamping) | 64.8 V at 9.3 A - Maximum voltage seen by protected IC during 10/1000 µs surge; determines downstream voltage stress. |
| PPPM | 600 W - Peak pulse power handling capability under standardized 10/1000 µs waveform; defines transient energy absorption limit. |
| TJ max | +150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" × 0.205" footprint; optimized for high-density PCB layouts and reflow soldering. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts only during forward surge or fault conditions. |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side; avalanche breakdown occurs here during transient overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV) surges in industrial and automotive interfaces. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<1 µA) across temperature and lifetime. |
| AEC-Q101 qualified | Validates suitability for automotive applications including engine control modules, body electronics, and ADAS sensors. |
| MSL Level 1 | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics. |
| Low profile SMB package | Reduces board space vs. SMA/SMB alternatives while maintaining thermal performance via 0.2" × 0.2" copper pad layout. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and ground, absorbing transients before they reach sensitive analog front-end or communication ICs. Use Value: Limits voltage excursion to ≤64.8 V during 9.3 A surge, preventing latch-up or permanent damage to 5 V or 12 V rail-connected ICs. |
Use Scenario: Safeguarding digital input/output channels on programmable logic controllers exposed to field wiring surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff voltage (40.2 V) aligns with 24 V DC control systems; clamps transients induced by relay coil de-energization or motor drive noise. Use Value: Withstands repetitive 600 W pulses at 0.01% duty cycle, enabling reliable operation in high-noise industrial environments without degradation. |
| Telecom Power Rail Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Secondary-side overvoltage suppression on 48 V telecom power supplies subjected to lightning-induced surges on Ethernet or PoE lines. IC Role / Device Role / Timing Role: Positioned after DC-DC converter output to clamp residual transients that bypass primary-side protection. Use Value: Fast <1 ns response and low clamping ratio (VC/VBR ≈ 1.4) minimize voltage overshoot on sensitive PMICs and FPGAs. |
Use Scenario: Input-stage surge protection in AC-DC adapters for smart home devices, guarding against mains-borne transients entering low-voltage DC outputs. IC Role / Device Role / Timing Role: Placed across secondary-side 5 V/12 V rails to suppress coupling from primary-side Y-capacitor discharge or transformer ringing. Use Value: RoHS-compliant and halogen-free (HE3 suffix) construction meets global environmental compliance for consumer end-products. |
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-E3/52 | Same VWM (40.2 V), identical SMB package, but non-AEC-Q101 commercial grade; lower cost, no automotive qualification. | Lacks AEC-Q101 validation; unsuitable for automotive OEM designs requiring PPAP documentation. | Select when automotive qualification is unnecessary and cost sensitivity outweighs long-term reliability requirements. |
| 1.5SMC47A | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W); same electrical specs but larger SMC (DO-214AB) footprint. | Requires PCB layout change due to larger 0.275" × 0.255" footprint; less suitable for space-constrained designs. | Choose only if existing design uses SMC package or requires higher single-pulse energy margin beyond 600 W. |
Compared with SMAJ47A-E3/52 and 1.5SMC47A, the P6SMB47AHE3_A/H uniquely combines AEC-Q101 qualification, SMB footprint, and 100 °C/W thermal resistance - making it optimal for automotive and high-reliability industrial applications where board space, qualification, and thermal performance are jointly constrained.
Availability
P6SMB47AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom power supply designs requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for P6SMB47AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom systems, with design focus on AEC-Q101 qualification, low-profile SMT packaging, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of P6SMB47AHE3_A/H at its rated peak pulse current?
The P6SMB47AHE3_A/H has a maximum clamping voltage (VC) of 64.8 V at 9.3 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC guidelines and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB47AHE3_A/H maintains this clamping performance across its full operating temperature range.
Is P6SMB47AHE3_A/H qualified for automotive applications?
Yes, the P6SMB47AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision 09-Jan-2024 (Document Number: 88370). It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements. The P6SMB47AHE3_A/H is approved for use in engine control units, body electronics, and ADAS sensor interfaces where automotive-grade reliability is mandatory.
What is the standoff voltage (VWM) of P6SMB47AHE3_A/H and how does it relate to system design?
The P6SMB47AHE3_A/H has a standoff voltage (VWM) of 40.2 V, meaning it remains non-conductive up to this DC or RMS voltage level. This allows safe integration into 36 V nominal automotive or 48 V telecom systems with sufficient margin above normal operating voltage. Designers must ensure VWM exceeds maximum steady-state voltage by ≥10% to avoid leakage-related power loss or thermal drift - a requirement fully satisfied by the P6SMB47AHE3_A/H in 24 V and 48 V applications.
Does P6SMB47AHE3_A/H have a bidirectional variant, and how does polarity affect its use?
No, P6SMB47AHE3_A/H is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P6SMB47CA). Unidirectional configuration enables use on DC-biased lines such as power rails or single-ended signal paths, where forward conduction is acceptable during fault conditions. The P6SMB47AHE3_A/H must be oriented with cathode toward the higher-potential side to function correctly - reversing polarity renders it ineffective for transient suppression.
What is the thermal resistance and maximum junction temperature of P6SMB47AHE3_A/H?
The P6SMB47AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and a maximum junction temperature (TJ) of +150 °C. When dissipating its rated 5.0 W steady-state power (PD), this corresponds to a 500 °C rise above ambient - underscoring the need for proper copper pad layout (0.2" × 0.2" minimum per terminal) and limited duty-cycle operation for pulsed surges. The P6SMB47AHE3_A/H is rated for continuous operation up to +150 °C junction temperature, supporting under-hood automotive deployment.
P6SMB47AHE3_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:
- 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:
- -
- 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_A/H FAQ
1.How can I place an order for P6SMB47AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AHE3_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 P6SMB47AHE3_A/H reliable?
The price and inventory of P6SMB47AHE3_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 P6SMB47AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB47AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AHE3_A/H?
P6SMB47AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AHE3_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 P6SMB47AHE3_A/H?
For technical support, including P6SMB47AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB47AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB47AHE3_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 P6SMB47AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB47AHE3_A/H?
All P6SMB47AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AHE3_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 P6SMB47AHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB47AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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