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Vishay General Semiconductor - Diodes Division P6SMB56AHE3/52
- Part No.:
- P6SMB56AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB56AHE3/52.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB56AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 56 V breakdown voltage (VBR = 53.2–58.8 V at IT = 1.0 mA), 47.8 V maximum stand-off voltage (VWM), 77.0 V clamping voltage (VC) at 7.8 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 µs waveform - deployed in automotive-grade power rail protection for ECUs and sensor interfaces.
For engineers reviewing the P6SMB56AHE3/52 datasheet, P6SMB56AHE3/52 pinout, P6SMB56AHE3/52 application, or P6SMB56AHE3/52 equivalent, this AEC-Q101 qualified TVS diode offers verified transient suppression performance, SMB (DO-214AA) package compatibility, RoHS-compliant matte tin terminals, and validated thermal derating behavior up to +150 °C junction temperature.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping device triggered by overvoltage events exceeding its reverse stand-off voltage of 47.8 V. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, ensuring effective suppression of ESD, lightning-induced surges, and inductive switching transients.
The device delivers 600 W peak pulse power handling per 10/1000 µs waveform at TA = 25 °C, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W. It is rated for repetitive duty cycle ≤ 0.01 % and supports operating junction temperatures from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at IT = 1.0 mA - defines precise clamping onset threshold under standardized test conditions |
| VWM | 47.8 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 77.0 V at 7.8 A - clamped voltage during worst-case 10/1000 µs surge, directly limiting downstream IC stress |
| PPPM | 600 W - peak transient energy absorption capacity, enabling robust protection against IEC 61000-4-5 Level 3/4 surges |
| IPPM | 7.8 A - maximum non-repetitive peak pulse current supported at VC, used for PCB trace sizing and layout margining |
| TJ max. | +150 °C - maximum junction temperature rating, supporting operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, critical for derating power dissipation above 25 °C |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-biased during clamping) | Connected to lower-potential side of protected line; determines directionality of transient shunting path |
| Cathode | Reverse-biased terminal during normal operation | Marked end; connected to higher-potential rail (e.g., VCC); conducts when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-to-earth) in properly designed layouts |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
| MSL Level 1 (260 °C peak reflow) | Enables compatibility with standard lead-free SMT assembly without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-supplied microcontroller inputs and CAN transceiver power pins in engine control modules. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between VBAT and ground, activated only during positive-going transients. Use Value: Limits voltage seen by downstream ICs to ≤77.0 V during load-dump events, preventing latch-up or oxide rupture. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop drivers) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Standby-mode suppressor across signal and return paths, responding within <1 ns to EFT bursts. Use Value: Maintains signal integrity by clamping induced spikes to <80 V while adding <0.5 pF capacitance at 0 V bias. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Front-end transient suppression on AC/DC adapter input rectifier outputs feeding DC-DC converters. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk capacitor node, absorbing energy from MOV failure or lightning coupling. Use Value: Absorbs up to 600 W for 1 ms without degradation, enabling single-stage protection architecture with reduced BOM count. |
Use Scenario: Secondary-side DC bus protection in PoE-powered devices (e.g., IP cameras, VoIP phones). IC Role / Device Role / Timing Role: Fast-acting shunt element across 48 V nominal supply, triggered by IEEE 802.3af/bt surge events. Use Value: Clamps 48 V rail to ≤77 V during 10/1000 µs surges, preserving DC-DC controller functionality and MOSFET gate oxide 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 |
|---|---|---|---|
| SMAJ58A-E3/52 (Vishay) | Same SMB package; higher VBR (55.1–60.7 V), slightly higher VC (93.6 V @ 6.4 A), lower PPPM (400 W) | Less suitable for 12 V systems requiring tight clamping margin; better for 24 V industrial rails | Select P6SMB56AHE3/52 when 77.0 V clamping at 7.8 A is required for 12 V automotive compliance. |
| 1.5SMC56A (ON Semiconductor) | SAME VBR range (53.2–58.8 V), identical VC (77.0 V), but SMC (DO-214AB) package - 2.5 mm wider body, different pad layout | Requires PCB redesign due to larger footprint and thermal pad geometry mismatch | Choose P6SMB56AHE3/52 for drop-in replacement in existing SMB-layout designs with AEC-Q101 requirement. |
Compared with SMAJ58A-E3/52 and 1.5SMC56A, the P6SMB56AHE3/52 provides superior 600 W surge handling in the compact SMB outline while meeting automotive qualification - making it optimal for space-constrained, high-reliability 12 V system protection where clamping voltage and package compatibility are jointly critical.
Availability
P6SMB56AHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom line card prototyping requiring stable component supply, AEC-Q101 traceability, and consistent SMB (DO-214AA) form factor.
Supply support for P6SMB56AHE3/52 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, precision, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in automotive, industrial, and telecom infrastructure - delivering AEC-Q101 qualified, surface-mount TVS diodes with tightly controlled VBR, low clamping ratio, and robust surge endurance.
FAQ
What is the clamping voltage of the P6SMB56AHE3/52 under a 10/1000 µs surge?
The P6SMB56AHE3/52 has a maximum clamping voltage (VC) of 77.0 V at 7.8 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per JEDEC standards and ensures predictable overvoltage limiting for downstream circuitry. The P6SMB56AHE3/52 maintains this clamping performance across its specified operating temperature range and is validated for repetitive surge duty cycles up to 0.01 %.
Is the P6SMB56AHE3/52 AEC-Q101 qualified?
Yes, the P6SMB56AHE3/52 is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness - making the P6SMB56AHE3/52 suitable for under-hood automotive applications such as engine control units and body electronics modules.
What is the standoff voltage rating for the P6SMB56AHE3/52?
The P6SMB56AHE3/52 has a maximum reverse stand-off voltage (VWM) of 47.8 V, meaning it remains in high-impedance state below this voltage with leakage current ≤1.0 µA. This allows reliable operation on 42 V nominal automotive systems (e.g., dual-battery or load-dump tolerant rails) while avoiding false triggering. The P6SMB56AHE3/52 maintains this VWM specification across its full temperature range and qualifies for continuous DC operation.
Does the P6SMB56AHE3/52 have a bidirectional variant?
No, the P6SMB56AHE3/52 is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional variants in the same series use the "CA" suffix (e.g., P6SMB56CA). The P6SMB56AHE3/52 conducts only during positive transients relative to its cathode and must be oriented accordingly in circuit - unlike bidirectional types, it does not protect against reverse-polarity surges.
What package type does the P6SMB56AHE3/52 use, and what are its key mechanical features?
The P6SMB56AHE3/52 uses the SMB (DO-214AA) surface-mount package: 3.94 mm × 2.20 mm body size, 0.220 inch (5.59 mm) overall length, with matte tin-plated leads compliant with J-STD-002 solderability and JESD 22-B102 whisker testing. Its low profile and MSL Level 1 rating support automated placement and lead-free reflow up to 260 °C - characteristics fully documented in the P6SMB56AHE3/52 datasheet revision 09-Jan-2024.
P6SMB56AHE3/52 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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)
P6SMB56AHE3/52 FAQ
1.How can I place an order for P6SMB56AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB56AHE3/52 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 P6SMB56AHE3/52 reliable?
The price and inventory of P6SMB56AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB56AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB56AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB56AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB56AHE3/52?
P6SMB56AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB56AHE3/52 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 P6SMB56AHE3/52?
For technical support, including P6SMB56AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB56AHE3/52 requirements.
6.How does Aetrix verify that P6SMB56AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB56AHE3/52 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 P6SMB56AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB56AHE3/52?
All P6SMB56AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB56AHE3/52, 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 P6SMB56AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB56AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB56AHE3/52 Tags
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