TR250-145U Tyco Electronics, TR250-145U Datasheet
TR250-145U
Manufacturer Part Number
TR250-145U
Description
POLYSWITCH 0.145A HOLD UNENCAPS
Manufacturer
Tyco Electronics
Series
PolySwitch®r
Datasheet
1.TR250-145.pdf
(28 pages)
Specifications of TR250-145U
R Min/max
3.500 ~ 6.500 Ohm
Voltage - Max
60V
Time To Trip
2s
Current - Hold (ih) (max)
145mA
Current - Trip (it)
290mA
Current - Max
3A
Package / Case
Radial
Holding Current
0.145A
Tripping Current
0.29A
Initial Resistance Max
6.5ohm
Initial Resistance Min
3.5ohm
Resistance R1
12ohm
Peak Reflow Compatible (260 C)
No
Fuse Terminals
Radial Leaded
Thermistor Type
PTC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
TR145U
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TR250-145U
Manufacturer:
Raychem
Quantity:
190
Company:
Part Number:
TR250-145US
Manufacturer:
MOLEX
Quantity:
32 648
Products in this section are grouped by:
Raychem Circuit Protection
PolySwitch devices for telecom-
munication and networking appli-
cations were initially designed
over ten years ago to meet the
growing demand for resettable
overcurrent protection. These
product families help provide pro-
tection against power cross and
power induction surge as defined
in ITU, Telcordia, and UL.
Available in chip, surface-mount,
and radial-leaded configurations,
PolySwitch devices help improve
the reliability of customer premise
and network equipment world
wide.
Benefits:
• Many product choices give
• Compatible with high volume
• Assist in meeting regulatory
• Improved line balance
• Applicable for legacy POTS and
Application/Specification, Product Series, Hold Current
engineers more design flexibility
electronics assembly
requirements
modern digital communications
equipment.
PolySwitch Telecommunications
and Networking
Resettable Devices
Features:
• Resettable overcurrent
• Surface-mount, radial-leaded,
• Fast time-to-trip
• Agency recognition: UL, CSA,
• Resistance sorted and matched
• Low parasitic capacitance/flat
protection
and chip form factors
TÜV
devices available
impedance with frequency
PolySwitch Telecommunications and Networking Resettable Devices
Telecommunications and Networking
Target Applications:
• Modems
• Phone sets
• Fax machines
• Phone wall outlets
• Alarm systems
• PBX systems
• MDF modules
• Analog and digital line cards
• T1/E1 equipment
• xDSL modems and splitters
• Powered ethernet systems
• VoIP (Voice over IP equipment)
• LAN, WAN equipment
• Customer premise equipment
• Access network hardware
301
4
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