Each subsystem making up a video doorbell requires overcurrent, overvoltage, and ESD protection. Littelfuse delivers, as seen in this block
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The Littelfuse 461 Series TeleLink® Surface Mount, Surge Resistant Fuse, offers over-current protection for a wide range of telecom applications without requiring a series resistor. When used in conjunction with a Littelfuse SIDACtor® Transient Voltage Suppressor (TVS) or a GreentubeTM Gas Plasma Arrestor, this combination provides a compliant solution for standards and recommendations such as GR-1089–Core, TIA-968-A, UL/ EN/IEC 60950, and ITU K.20 and K.21. The coordination requirement contained in GR-1089–Core, and ITU K.20/21 may require a series of impedance devices.
- Surface mount surge resistant Slo-Blo® fuse
- Meet UL 60950 3rd ed. power cross requirements standard alone
- Designed to allow compliance with Telcordia GR-1089-CORE and TIA- 968-A (formerly FCC Part 68) Surge Specifications
- Coordinate well with SIDACtor® transient voltage suppressors (TVS) or GreentubeTM gas plasma arrestors without needing series resistors
- Designed to serve the requirements of a wide range of telecommunication and networking equipment
- 2 A rating has improved temperature rise performance under 2.2 A surge current testing when compared with 1.25 A rating
- Halogen-free, RoHS compliant, and compatible with lead-free solder and higher temperature profiles when ordered with silver-plated brass caps
- Standard product is RoHS Compliant and compatible with lead-free solders and higher temperature profiles
461 Parts
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Showing 1 to 3 of 3 Total Results
| 100 | 600 | 0.84 | 0.56 | Ceramic | Level 1 | Slo-Blo/Time Lag (T)/Time Delay | -55° to 125°C | UR / CE / TUV / CSA / UKCA | |||
| 100 | 600 | 16.5 | 0.104 | Ceramic | Level 1 | Slo-Blo/Time Lag (T)/Time Delay | -55° to 125°C | UR / UKCA / CE / TUV / CSA | |||
| 100 | 600 | 17.5 | 0.045 | Ceramic | Level 1 | Slo-Blo/Time Lag (T)/Time Delay | -55° to 125°C | UR / UKCA / CE / TUV / CSA |
461 Applications
Video Doorbells
Security Cameras
Wireless security cameras need temperature sensors and ESD protection that wired security cameras do not. Block diagrams illustrate how Littelfuse
Highlights Section
- T1/E1/J1 and HDSL2/4
- SLIC interface portion of Fiber to the Curb (FTTC) and Fiber to the Premises (FTTP)
- Non-Fiber SLIC interface for Central Office (CO) locations and Remote Terminals (RT)
- xDSL applications such as ADSL, ADSL2+, VDSL, and VDSL2+
- Ethernet 10/100/1000BaseT
- POTS applications such as modems, answering machines, telephones, fax machines, and security systems
- ISDN “U” interface
- Baystation T1/E1/J1, T3 (DS3) trunk cards
