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BAS521B-Q Automotive switching diodes by Nexperia

BAS521B-Q is a Automotive switching diodes from Nexperia in SOD523 packaging. It is commonly reviewed for Automotive switching diodes. This page lists current TrustCompo stock, tier pricing, package data, datasheet access, compliance attributes, Hong Kong warehouse shipping options, payment confirmation, and RFQ options for buyers verifying this exact ordering code.

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BAS521B-Q Automotive switching diodes by Nexperia | TrustCompo
Pictures are for reference only. Please contact us for the latest pictures.
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Key specifications

Part Number

BAS521B-Q

Internal code

TCE000017661

Package

SOD523

Manufacturer
Nexperia

Key specifications

Series

-

Min Quantity

1

Description

-

key Attributes

-

Trust signals

Quality and trust signals

Review TrustCompo quality credentials, traceability support, anti-counterfeit handling, and inspection controls before sending an RFQ.

4 certifications
  • ISO 9001

    Quality management processes for more consistent sourcing and handling.

  • AS9120B

    Aerospace-focused distribution controls for traceability and reliability.

  • ISO 14001

    Environmental management discipline across warehouse and operating workflows.

  • ESD Control

    Electrostatic handling standards to help protect sensitive components.

RFQ checklist

Order process

Confirm the core buying details for BAS521B-Q before RFQ, PO release, and shipment planning.

  1. 1

    Confirm MPN

    Use the exact part number, manufacturer, package, and approval constraints in the RFQ.

  2. 2

    Check stock and price

    Verify live availability, MOQ, lead time, final unit price, and tax terms before PO release.

  3. 3

    Align documents

    Confirm datasheet, CoC, traceability, lifecycle notes, and inspection scope when required.

  4. 4

    Arrange shipment

    Release the PO and align DHL, FedEx, UPS, or buyer forwarder shipment from Hong Kong.

Before PO release

Part confirmation

  • Exact MPN confirmed: BAS521B-Q
  • Package to verify: SOD523

Commercial confirmation

  • Live stock and lead time confirmed by RFQ
  • Final price and tax terms confirmed before PO release

Fulfillment & documents

  • Ship-from location: Hong Kong warehouse
  • Shipping method: DHL, FedEx, UPS, or buyer forwarder account

Technical parameters

Parameters

Compare grouped BAS521B-Q parameters from Nexperia, including package, series, key attributes, and technical values used for engineering and sourcing review.

  • Product Attribute

    Configuration

    Single

  • Product Attribute

    Number Of Functions

    Single

  • Product Attribute

    Manufacturer

    Nexperia

  • Product Attribute

    Reverse Recovery Time (Max)

    50.0

  • Product Attribute

    Diode Capacitance Max (PF)

    2.0

  • Product Attribute

    Package Name

    SC-79

BAS521B-Q Product Attribute
ParameterValue
Configuration

Specifies the internal circuit topology of the component, such as single, dual, or bridge. This determines how the part functions in your design. Verify the configuration against the datasheet to ensure it matches your application requirements before ordering.

Single
Number Of Functions

Indicates how many independent functions are integrated into a single component package. Compare this when selecting multi-function ICs or modules to ensure the device meets your circuit's requirements. Always verify against the datasheet for exact function definitions and pin assignments.

Single
Manufacturer

Identifies the company that designed and produced the component. Buyers often filter by manufacturer to ensure brand reliability, quality standards, and supply chain consistency. Verify the manufacturer against the datasheet and official packaging to avoid counterfeit parts.

Nexperia
Reverse Recovery Time (Max)

Maximum time for a diode to transition from forward conduction to reverse blocking. Critical for switching losses in power supplies and inverters. Compare with datasheet values to ensure fast switching and minimal heat generation.

50.0
Diode Capacitance Max (PF)

This is the maximum junction capacitance of the diode, typically measured at a specified reverse voltage and frequency. It affects high-frequency performance and switching speed. Compare this value with your circuit requirements and verify it against the datasheet for accurate operation.

2.0
Package Name

Identifies the physical package type or designator, such as SOIC, QFN, or DIP. This determines PCB footprint, thermal performance, and assembly compatibility. Verify the package matches your board layout and manufacturing capabilities. Check the datasheet for exact dimensions.

SC-79
Size (Mm)

Physical dimensions of the component in millimeters. Essential for PCB layout and mechanical fit. Buyers and engineers compare size to ensure the part fits the design envelope. Always check the datasheet for exact dimensions and tolerances.

1.2 x 0.8 x 0.6
Reverse Voltage Max (V)

Specifies the highest reverse voltage the component can safely block without breakdown. Compare this rating with your circuit's peak reverse voltage to ensure reliable operation. Always verify against the datasheet's absolute maximum ratings for your specific application.

200.0
VR [Max] (V)

Maximum reverse voltage the component can withstand without breakdown. Exceeding this value may cause permanent damage. Check this rating against your circuit's reverse voltage conditions, especially during transients, and always refer to the datasheet for safe operating limits.

200.0
Forward Current Max (MA)

Maximum continuous forward current in milliamperes. This is the highest steady current the component can handle in the forward direction. Essential for ensuring reliable operation and preventing damage. Verify against datasheet ratings for your application.

250.0
Repetitive Peak Forward Current (MA)

Maximum repetitive peak forward current in milliamperes. This is the highest pulsed forward current the component can withstand repeatedly. Critical for applications with pulsed loads. Compare with datasheet pulse conditions to ensure long-term reliability.

625.0
IFRM [Max] (MA)

Maximum repetitive peak forward current. This is the highest peak current the diode can handle repeatedly under normal operating conditions. Ensure your application's peak current does not exceed this limit to prevent overheating or failure. Check the datasheet for exact conditions.

625.0
Reverse Current Max (NA)

Maximum reverse leakage current when the diode is reverse-biased. Lower values indicate better blocking performance and lower power loss. Check the datasheet for test conditions, as temperature and voltage affect this parameter.

100@VR=200V
Forward Voltage Max (MV)

Specifies the highest forward voltage drop across the diode or LED at rated current. Compare this value to ensure your circuit's power dissipation and thermal performance stay within limits. Always verify against the datasheet for your operating conditions.

1250@IF=200mA
Non-Repetitive Peak Forward Current Max (A)

Maximum surge current the diode can withstand for a single non-repetitive pulse. Verify against datasheet to ensure it exceeds inrush current in your circuit. Critical for rectifier and power supply designs.

9.4
IFSM [Max] (A)

Maximum non-repetitive peak forward surge current. This value indicates the highest surge current the diode can withstand for a short duration. Compare it with your circuit's inrush current to ensure reliable operation. Always verify against the datasheet.

9.4
Automotive Qualified

Indicates the component meets AEC-Q or other automotive reliability standards. Verify the specific qualification level in the datasheet. Essential for designs targeting automotive applications where extended temperature ranges and high vibration resistance are critical.

Y
BAS521B-Q Product Parameter
ParameterValue
Configuration

Specifies the internal circuit topology or arrangement of the component, such as single, dual, or bridge configuration. This attribute helps engineers select the right part for their circuit design. Always verify the exact configuration against the datasheet to ensure compatibility with your application.

Single

Notice documents

PCN / product notice documents

0 documents

No public PCN / PDN records currently displayed

No public product notice document is currently displayed for BAS521B-Q. Confirm PCN, PDN, EOL, date code, and lifecycle status during RFQ before production purchase.

Common questions

Product FAQ

Targeted answers for buyers verifying the exact BAS521B-Q ordering code, packaging, stock, datasheet, and replacement path.

What does BAS521B-Q mean?

BAS521B-Q is the exact ordering code listed for a Automotive switching diodes component from Nexperia. The current package reference is SOD523, with listed context including -. Buyers should use the full code when requesting stock, price, datasheet, or compliance confirmation.

How should buyers verify the BAS521B-Q ordering code?

Treat BAS521B-Q as the full ordering code during RFQ and engineering review. Confirm the listed SOD523 package, manufacturer documentation from Nexperia, datasheet ordering table, reel or packing details, and any customer approval constraints before substitution or PO release.

What package is BAS521B-Q supplied in?

BAS521B-Q is currently listed with package reference SOD523 from Nexperia. Buyers should confirm the manufacturer package drawing, footprint, pinout, tape-and-reel details, and receiving requirements before approval.

Is BAS521B-Q currently available?

BAS521B-Q is currently marked with stock availability on this page. Before ordering, confirm the package (SOD523), listed stock (124692), available quantity (81138), required quantity, lead time, final price, compliance needs, and exact ordering code match through RFQ.

Where can I compare BAS521B-Q alternatives?

A mapped alternative list is not currently published for BAS521B-Q. Send an RFQ with the target quantity, package constraints, and approval requirements so TrustCompo can help review credible replacement options.