Bourns Inc.
Billedet kan være en repræsentation.
Se specifikationer for produktdetaljer.
MF-R185
Se detaljer DataSheets

MF-R185 Overview

Product Information

  • Belongs to: Electrical Components
  • Category: Resettable Fuse
  • Use: Overcurrent Protection
  • Characteristics: Resettable, Fast-acting
  • Package: SMD (Surface Mount Device)
  • Essence: Provides overcurrent protection in electronic circuits
  • Packaging/Quantity: Available in reels of 3000 units

Specifications

  • Hold Current: 1.85A
  • Trip Current: 3.7A
  • Voltage Rating: 60V
  • Operating Temperature: -40°C to 85°C
  • Dimensions: 1.6mm x 0.8mm x 0.6mm

Detailed Pin Configuration

  • Pin 1: Input
  • Pin 2: Output

Functional Features

  • Resettable fuse that automatically returns to operation after the fault is cleared
  • Fast-acting response to overcurrent conditions
  • Compact SMD package for space-constrained applications

Advantages and Disadvantages

Advantages

  • Eliminates the need for replacement fuses
  • Fast response time protects sensitive electronic components
  • Small form factor saves PCB space

Disadvantages

  • Limited hold current compared to traditional fuses
  • Sensitive to voltage spikes

Working Principles

The MF-R185 operates based on the principle of positive temperature coefficient (PTC). When an overcurrent condition occurs, the resistance of the PTC material increases, limiting the current flow. Once the fault is removed, the PTC material cools down, allowing the device to reset.

Application Field Plans

The MF-R185 is suitable for a wide range of applications including: - Consumer electronics - Automotive electronics - Industrial control systems - Power supplies - Battery protection circuits

Alternative Models

For alternative resettable fuses with similar specifications and form factors, consider the following models: 1. MF-R160 2. MF-R200 3. MF-R250

In conclusion, the MF-R185 resettable fuse offers compact overcurrent protection with fast-acting response, making it an ideal choice for various electronic applications.

Word count: 298

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af MF-R185 i tekniske løsninger

  1. What is MF-R185?

    • MF-R185 is a type of polymer positive temperature coefficient (PPTC) resettable fuse, commonly used in electronic circuits for overcurrent protection.

  2. What are the typical applications of MF-R185?

    • MF-R185 is commonly used in battery packs, power supplies, and various electronic devices to protect against overcurrent conditions.

  3. What is the operating voltage range of MF-R185?

    • The operating voltage range of MF-R185 is typically between 6V and 60V.

  4. What is the hold current of MF-R185?

    • The hold current of MF-R185 is typically 1.85A, which means it will not trip below this current level.

  5. How does MF-R185 compare to traditional fuses?

    • MF-R185 is a resettable fuse, meaning it can return to its normal state after the overcurrent condition is removed, unlike traditional fuses which need to be replaced.

  6. Can MF-R185 be used in automotive applications?

    • Yes, MF-R185 can be used in automotive applications where overcurrent protection is required.

  7. What is the typical response time of MF-R185?

    • The typical response time of MF-R185 is very fast, usually within milliseconds of an overcurrent event.

  8. Is MF-R185 suitable for high-temperature environments?

    • Yes, MF-R185 is designed to operate in high-temperature environments, making it suitable for a wide range of applications.

  9. Can MF-R185 be used in conjunction with other protective devices?

    • Yes, MF-R185 can be used in combination with other protective devices such as fuses and circuit breakers for enhanced protection.

  10. Are there any specific soldering or mounting requirements for MF-R185?

    • MF-R185 should be soldered using standard reflow or wave soldering processes and mounted securely to ensure proper heat dissipation and electrical connection.