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Vishay General Semiconductor - Diodes Division P6SMB56AHE3_B/I
- Part No.:
- P6SMB56AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB56AHE3_B/I.pdf
- Description:
- 600W,56V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,607
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Product details
Overview
P6SMB56AHE3_B/I 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 56 V breakdown voltage (VBR min/max = 53.2–58.8 V at 1 mA), 47.8 V stand-off voltage (VWM), 77.0 V maximum clamping voltage (VC) at 7.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB56AHE3_B/I datasheet, P6SMB56AHE3_B/I pinout, P6SMB56AHE3_B/I application, or P6SMB56AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 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 protection device that conducts above its breakdown threshold to divert transient energy away from sensitive downstream circuitry. Its glass-passivated junction ensures stable leakage performance, while the SMB package provides mechanical robustness and thermal dissipation suitable for high-reliability applications.
The device complies with J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C), supports 100 A non-repetitive forward surge current (IFSM), and exhibits a temperature coefficient of VBR of +0.103 %/°C - enabling predictable clamping behavior across operating temperature ranges from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at 1 mA test current - defines precise voltage threshold where clamping begins |
| VWM | 47.8 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 77.0 V at 7.8 A - clamped voltage during 600 W transient, limiting stress on protected ICs |
| PPPM | 600 W with 10/1000 µs waveform - peak transient energy absorption capability |
| IFSM | 100 A (8.3 ms half-sine) - surge withstand for inductive load switching events |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard PCB pad layout |
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 indicated by band marking; polarity is unidirectional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Current exit terminal during forward conduction; clamping node in reverse bias | Connected to protected line (e.g., 48 V rail or sensor input); conducts when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable reverse leakage (<1 μA at VWM) and long-term parameter stability |
| 600 W peak pulse power | Handles IEC 61000-4-5 surge events up to 4 A (line-to-ground) without degradation |
| MSL Level 1 | Compatible with standard lead-free reflow profiles (peak 260 °C) without moisture sensitivity concerns |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage exposure to protected devices during transient suppression |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 48 V battery-connected ECUs against load-dump transients and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between power rail and ground, triggered within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤77.0 V during 600 W surges, preventing damage to 60 V-rated DC-DC controllers and CAN transceivers. |
Use Scenario: Safeguarding analog inputs of pressure/temperature sensors in PLC modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Standby-mode TVS shunting induced spikes on 24 V sensor supply or 0–10 V output lines. Use Value: Maintains <1 μA leakage at 24 V nominal, preserving measurement accuracy while clamping 1 kV/µs fast edges to safe levels. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Clamping |
|
Use Scenario: Secondary-side transient suppression on –48 V telecom rectifier outputs feeding base station backplanes. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-rail, anode-to-ground to clamp negative-going surges. Use Value: Withstands repetitive 10/1000 µs surges at 0.01% duty cycle, ensuring uptime in carrier-grade power systems. |
Use Scenario: Output overvoltage protection on USB PD and QC-compliant AC/DC adapters delivering 20 V. IC Role / Device Role / Timing Role: Fast-response clamping element placed after secondary-side rectification and filtering. Use Value: Clamps output to 77.0 V during transformer flyback overshoot, preventing damage to connected Type-C controller ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ56A-E3/5B | Same VBR range (53.2–58.8 V), but SMA package (DO-214AC); 400 W PPPM, higher RθJA (140 °C/W) | Limited to lower-energy transients; less thermal margin on dense PCBs | Select when footprint constraints favor SMA or legacy designs require drop-in replacement with derated surge handling |
| 1.5SMC56A | Same electrical specs, but SMC (DO-214AB) package; 600 W rating, larger body, higher IFSM (200 A) | Better thermal performance but requires 30% more board area; not AEC-Q101 qualified | Choose for industrial power supplies needing higher surge margin and no automotive qualification requirement |
Compared with SMAJ56A-E3/5B and 1.5SMC56A, P6SMB56AHE3_B/I delivers AEC-Q101 compliance in the smallest standardized 600 W TVS footprint (SMB), balancing space efficiency, automotive reliability, and clamping precision - making it optimal for next-gen ADAS domain controllers and compact industrial drives.
Availability
P6SMB56AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor modules, and telecom power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB56AHE3_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, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of P6SMB56AHE3_B/I at its rated peak pulse current?
The P6SMB56AHE3_B/I has a maximum clamping voltage (VC) of 77.0 V at 7.8 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and reflects the actual voltage seen by protected circuitry during worst-case transient events - critical for verifying margin against downstream device absolute maximum ratings. The P6SMB56AHE3_B/I maintains this clamping performance across its full operating temperature range.
Is P6SMB56AHE3_B/I qualified for automotive applications?
Yes, P6SMB56AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3_B", where "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction, and "_B" indicates qualification for the 6.8 V to 220 V voltage range. This qualification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD robustness - making P6SMB56AHE3_B/I suitable for engine control units, body electronics, and ADAS power domains.
What is the maximum continuous reverse working voltage (VWM) for P6SMB56AHE3_B/I?
The maximum continuous reverse working voltage (VWM) for P6SMB56AHE3_B/I is 47.8 V. This is the highest DC or RMS voltage the device can block continuously while maintaining reverse leakage below 1 μA at 25 °C. Exceeding VWM risks premature conduction and accelerated aging; design margin should ensure system operating voltage remains ≤80% of VWM for long-term reliability. The P6SMB56AHE3_B/I datasheet specifies this value under standard test conditions.
Does P6SMB56AHE3_B/I have a bidirectional variant?
No, P6SMB56AHE3_B/I is strictly unidirectional, as indicated by the "A" suffix and absence of "CA" in the part number. Bidirectional variants use the "CA" suffix (e.g., P6SMB56CA). The unidirectional configuration means the P6SMB56AHE3_B/I conducts only when cathode voltage exceeds anode voltage by ≥VBR; it blocks in the forward direction like a standard diode. For AC line or differential signal protection, a bidirectional part must be selected separately.
What is the thermal resistance junction-to-ambient (RθJA) for P6SMB56AHE3_B/I?
The typical thermal resistance junction-to-ambient (RθJA) for P6SMB56AHE3_B/I is 100 °C/W, measured on a standard 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad layout per Vishay's specification. This value determines how much the junction temperature rises above ambient under steady-state power dissipation - for example, at 5.0 W continuous power (PD), ΔTJ ≈ 500 °C, confirming that P6SMB56AHE3_B/I is intended for pulsed, not continuous, power dissipation. Derating curves in the datasheet guide safe operation above 25 °C ambient.
P6SMB56AHE3_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):
- 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:
- 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)
P6SMB56AHE3_B/I FAQ
1.How can I place an order for P6SMB56AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB56AHE3_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 P6SMB56AHE3_B/I reliable?
The price and inventory of P6SMB56AHE3_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 P6SMB56AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB56AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB56AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB56AHE3_B/I?
P6SMB56AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB56AHE3_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 P6SMB56AHE3_B/I?
For technical support, including P6SMB56AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB56AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB56AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB56AHE3_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 P6SMB56AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB56AHE3_B/I?
All P6SMB56AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB56AHE3_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 P6SMB56AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB56AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB56AHE3_B/I Tags
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