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LTC4257IS8#TRPBF
Purchase
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prices and inventories about the part.
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your request by email within 24 hours.
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Shipping Cost
Shipping starts at $40, but some countries will exceed $40. For
example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The
basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and
country.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
Delivery TimeOnce the goods are shipped, estimated delivery time depends on the shipping methods you chose:
FedEx International, 5-7 business days.
The following are some common countries' logistic time.
| Parameters | |
|---|---|
| Factory Lead Time | 8 Weeks |
| Lifecycle Status | PRODUCTION (Last Updated: 2 weeks ago) |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) |
| Surface Mount | YES |
| Number of Pins | 8 |
| Operating Temperature | -40°C~85°C |
| Packaging | Tape & Reel (TR) |
| Published | 2005 |
| JESD-609 Code | e3 |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 8 |
| ECCN Code | EAR99 |
| Type | Controller (PD) |
| Terminal Finish | Matte Tin (Sn) |
| Voltage - Supply | 57V Max |
| Terminal Position | DUAL |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 260 |
| Number of Functions | 1 |
| Depth | 3.99mm |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Base Part Number | LTC4257 |
| Pin Count | 8 |
| Number of Channels | 1 |
| Power - Max | 12.95W |
| Current - Supply | 3mA |
| Internal Switch(s) | Yes |
| Standards | 802.3af (PoE) |
| Auxiliary Sense | No |
| Length | 5mm |
| Width | 3.9mm |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Lead Free |
LTC4257IS8#TRPBF Overview
PoE controller is part of the Tape & Reel (TR) package, which is included in the download.In this case, it is packaged in the same way as 8-SOIC (0.154, 3.90mm Width).In this application, it is an PoE controller that is of the Controller (PD) type.Channels are growing strong/weak depending on the category: 1.PoE operates with the operating temperature of -40°C~85°C to ensure its reliability.This electrical Po E controller receives its supply voltage from 57V Max.A part number's Po E controllers of LTC4257 can be determined by its base number.8 termination is achieved by terminating a transmission line with an impedance match power over ethernet controller.It is estimated that this electrical ethernet over power controller has a maximum power of 12.95W Watts.In addition, it comes with a 8 pin count.In this case, 3mA is the supply current.A 8-pin design is used in it.There is a peak reflow temperature of this electric ethernet power controller (Cel) of 260 degrees Celsius.
LTC4257IS8#TRPBF Features
Tape & Reel (TR) package
8 pin count
8 pins
LTC4257IS8#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC4257IS8#TRPBF Power Over Ethernet (PoE) Controllers applications.
- Higher Power Ethernet Powered Devices
- Pass-through System
- High power (>12.95 W) powered devices
- Commercial Information Displays
- POS Terminals
- High Power Wireless Data Systems
- WLAN Access Points
- Security Cameras
- Power Modules
- Switches