233

RoHS Compliant, ELV Compliant

12

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

• Greater flexibility for design engineers.

• Lower resistance devices can allow for increased loop length on line card designs.

• Higher resistance devices may 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 0.5

Ω of each other

(1.0

Ω 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 reduce the tip-ring resistance differential, reducing the possibility of line imbalance.

Resistance-matched Devices

Part Numbering System for 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.x

Ω (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 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.x

Ω (optional)

Rx = Resistance range (optional)

F = RoHS Compliant, ELV Compliant

Hold Current (mA)

Product Series (TS250, TSV250, TSL250, TS600, TSM600)