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Vishay General Semiconductor - Diodes Division P6SMB56AHE3_B/H
- Part No.:
- P6SMB56AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB56AHE3_B/H.pdf
- Description:
- 600W,56V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,881
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Product details
Overview
P6SMB56AHE3_B/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 56 V breakdown voltage (VBR min/max = 53.2–58.8 V), 47.8 V stand-off voltage (VWM), 77.0 V maximum clamping voltage 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/H datasheet, P6SMB56AHE3_B/H pinout, P6SMB56AHE3_B/H application, or P6SMB56AHE3_B/H 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 standard PCB copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by transient overvoltage events. Its glass-passivated junction ensures stable breakdown behavior, while the SMB package supports high thermal dissipation under repetitive 10/1000 µs pulses at 0.01% duty cycle. The cathode band identifies polarity for correct orientation in series with protected circuitry.
It delivers fast response time (<1 ns), low leakage (<1 µA at VWM), and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. Designed for use without series impedance in many cases, its clamping performance is validated under standardized test conditions with 0.2" × 0.2" copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 53.2–58.8 V at 1.0 mA test current - defines precise conduction onset threshold for overvoltage protection |
| Stand-off Voltage VWM | 47.8 V - maximum continuous reverse operating voltage before significant leakage begins |
| Clamping Voltage VC | 77.0 V at 7.8 A peak pulse current - actual voltage seen by protected circuit during worst-case transient |
| Peak Pulse Power PPPM | 600 W with 10/1000 µs waveform - energy-handling capability for common lightning and ESD surge profiles |
| Junction Temperature Range | –65 °C to +150 °C - enables operation in under-hood automotive and industrial ambient environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronics reliability including temperature cycling, HTRB, and mechanical shock |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, compliant with J-STD-002 solderability and JESD 22-B102 whisker testing. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 48 V supply rail); band-marked end indicates this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power rating | Enables robust protection against IEC 61000-4-5 Level 3/4 surges without derating in typical PCB layouts |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics where long-term reliability is mandatory |
| Glass passivated junction | Ensures stable VBR tolerance and low parameter drift across temperature and lifetime |
| Low profile SMB package | Supports high-density PCB layouts and automated pick-and-place assembly with minimal board space impact |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking, reducing manufacturing overhead and handling risk |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and chassis ground to clamp overshoots. Use Value: Limits voltage seen by downstream DC-DC converters to ≤77.0 V, preventing damage to 60 V-rated input stages. |
Use Scenario: Shielding analog output lines of pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: TVS connected across differential signal pair to suppress EFT bursts induced by nearby motor switching. Use Value: Maintains signal integrity by clamping transients within 1 ns, avoiding ADC saturation or microcontroller reset. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
|
Use Scenario: Safeguarding PoE-powered Ethernet switches against induced surges on 57 V DC input rails. IC Role / Device Role / Timing Role: Standoff-rated TVS installed upstream of primary DC-DC stage to absorb line-to-ground transients. Use Value: Withstands repeated 600 W pulses without degradation, supporting >100,000 surge cycles per MIL-STD-883H Method 3015. |
Use Scenario: Guarding BLDC motor driver inputs against back-EMF spikes during commutation in smart HVAC units. IC Role / Device Role / Timing Role: TVS placed across half-bridge high-side FET source-drain to limit VDS overshoot. Use Value: Clamps spikes to 77.0 V, keeping FETs within safe operating area and eliminating need for snubbers. |
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-E3/52 | Same VBR range (53.2–58.8 V), but SMA package (smaller footprint, lower PPPM = 400 W) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1.5SMC56A | Same electrical specs, but larger SMC (DO-214AB) package with higher thermal mass and 1500 W PPPM rating | Better suited for high-repetition-rate industrial environments requiring extended surge endurance | Choose when system-level testing reveals margin shortfall with 600 W rating or when layout allows larger footprint |
Compared with SMAJ56A-E3/52, P6SMB56AHE3_B/H offers higher surge capacity and automotive qualification; compared with 1.5SMC56A, it provides identical clamping performance in a smaller, more manufacturable SMB package - ideal for cost- and space-sensitive AEC-Q101 designs.
Availability
P6SMB56AHE3_B/H is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, telecom power interfaces, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB56AHE3_B/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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for consistent clamping performance, AEC-Q101 compliance, and seamless integration into automated SMT lines.
FAQ
What is the maximum clamping voltage of the P6SMB56AHE3_B/H under specified test conditions?
The P6SMB56AHE3_B/H has a maximum clamping voltage (VC) of 77.0 V at 7.8 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized conditions using 0.2" × 0.2" copper pads per terminal and represents the highest voltage imposed on protected circuitry during a defined surge event. The P6SMB56AHE3_B/H maintains this clamping performance across its full operating temperature range.
Is the P6SMB56AHE3_B/H qualified for automotive applications?
Yes, the P6SMB56AHE3_B/H 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 (HTRB), and mechanical shock per AEC-Q101 requirements. This qualification confirms its suitability for under-hood and body electronics applications where reliability over 15-year vehicle lifetimes is required.
What does the "_B/H" suffix in P6SMB56AHE3_B/H signify?
The "_B" denotes AEC-Q101 qualification for the P6SMB56AHE3_B/H series, while "/H" specifies packaging in 7" diameter plastic tape and reel with 750 units per reel. This format aligns with Vishay's standardized ordering nomenclature for automotive-grade parts and ensures compatibility with high-speed SMT placement equipment requiring precise reel dimensions and count verification.
How does the P6SMB56AHE3_B/H compare to bidirectional TVS diodes like P6SMB56CA?
The P6SMB56AHE3_B/H is unidirectional and intended for DC line protection where polarity is fixed, offering tighter VBR tolerance and lower leakage than its bidirectional counterpart P6SMB56CA. Unlike P6SMB56CA, which protects AC or floating signals in both directions, the P6SMB56AHE3_B/H must be oriented with cathode toward the protected line - making it optimal for 48 V supply rails and grounded-signal paths in automotive systems.
What is the thermal resistance from junction to ambient for the P6SMB56AHE3_B/H?
The P6SMB56AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on standard 0.2" × 0.2" copper pads. This value assumes no additional heatsinking and defines the steady-state temperature rise above ambient at 5.0 W continuous power dissipation. For pulsed operation, transient thermal impedance curves (Fig. 5 in datasheet) govern short-duration heating behavior.
P6SMB56AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- 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/H FAQ
1.How can I place an order for P6SMB56AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB56AHE3_B/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 P6SMB56AHE3_B/H reliable?
The price and inventory of P6SMB56AHE3_B/H 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/H is usually 5 days.
3.What payment methods are accepted for P6SMB56AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB56AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB56AHE3_B/H?
P6SMB56AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB56AHE3_B/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 P6SMB56AHE3_B/H?
For technical support, including P6SMB56AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB56AHE3_B/H requirements.
6.How does Aetrix verify that P6SMB56AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB56AHE3_B/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 P6SMB56AHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB56AHE3_B/H?
All P6SMB56AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB56AHE3_B/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 P6SMB56AHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB56AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB56AHE3_B/H Tags
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