Datasheet

PolySwitch Resettable Devices – Telecommunications & Networking Devices
RoHS Compliant, ELV Compliant
267
11
PolySwitch Telecommunications and Networking Resistance-Sorted and Resistance-Matched Devices
Resistance-sorted devices (part number suffix “Rx”, where x = 1, 2, A, B, C, F, etc.) are supplied with resistance values that are within
specified segments of the device’s full range of resistance.
Feature
• Narrow resistance range.
Benefits
• Can help provide greater flexibility for design engineers.
• Lower resistance devices can help provide increased loop length on line card designs.
• Higher resistance devices may help provide greater protection by offering faster time-to-trip.
Resistance-sorted Devices
Most TCF, TRF and TS devices are available in resistance-sorted and/or resistance-matched versions.
Resistance-matched devices are supplied such that all parts in one particular package (or reel) are within 0.5Ω of each other
(1.0Ω for TRF250-080T devices). Individual matched packages are supplied from the full resistance range of the specified device.
Feature
• Tighter resistance balance between any two parts in a package.
Benefits
• Resistance-matched devices may help reduce the tip-ring resistance differential, reducing the possibility of line imbalance.
Resistance-matched Devices
Part Numbering System for PolySwitch Radial-Leaded Telecommunications and Networking Devices
TRF*250 -120 T -RA -B-0.5 -2
Packaging
2 = Tape and Reel
0.130 = Special Lead Length in Inches
(Blank) = Bulk
B-x.x = Resistance Matched in Bins of x.xΩ (Optional)
Rx = Resistance Range (Optional)
Modifier (Optional)
U = Uncoated
S = Straight Lead
T = Fast Trip Device
Hold Current (mA)
Product Series (TRF250, TRF600)
* F = RoHS compliant, ELV compliant
Part Numbering System for PolySwitch Surface-mount Telecommunications and Networking Devices
TSx -200 F -RA -B-0.5 -2
Packaging
2 = Tape and Reel
(Blank) = Bulk
B-x.x = Resistance Matched in Bins of x.xΩ (Optional)
Rx = Resistance Range (Optional)
F = RoHS Compliant, ELV Complian
t
Hold Current (mA)
Product Series (TS250, TSV250, TSL250, TS600, TSM600)
2013_CP_S11-Poly-8-TeleNetwork.indd 267 8/3/13 10:41 AM