PolySwitch Resettable Devices
– Telecommunications & Networking Devices
PolySwitch Resettable Devices
Telecommunications & Networking Devices
This family of telecommunication and networking
devices was initially designed to meet the growing
demand for resettable overcurrent protection. These
product families help provide protection against
damage caused by power cross and power induction
surges as defined in ITU, Telcordia GR1089, and
UL60950. Available in chip, surface-mount, and radial-
leaded configurations, TE’s PolySwitch devices help
improve the reliability of customer premise and network
equipment world wide.
Benefits
• Many product choices give engineers more design
flexibility
• Compatible with high volume electronics assembly
• Assist in meeting regulatory equipment requirements
• Improved line balance
• Applicable for legacy POTS and modern digital
communications equipment
Features
• RoHS compliant
• Resettable overcurrent protection
• Surface-mount, radial-leaded, and chip form factors
• Fast time-to-trip
• Agency recognition: UL, CSA, TÜV
• Resistance sorted and matched devices available
• Low parasitic capacitance/flat impedance with
frequency
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 Internet Protocol) equipment
• LAN, WAN equipment
• Customer premise equipment
• Access network hardware
12
213
Application Guide for Telecommunications and Networking Devices*
To use this guide, follow the steps below:
1. Select your equipment type from the guide below.
2. Select the type of protection depending on the agency and regional specifications in the second column.
3. Select the form factor for your application.
4. Use the Agency Specification/ PolySwitch Device Selection Guide on the next page to select a specific part number for each application
based on the agency requirements.
5. Parts with fast time-to-trip or low resistance are available. Please consult a TE Circuit Protection representative.
Overcurrent Protection
Region/
Specification
North America
TIA-968-A,
UL 60950,
GR1089 Port Type 3
‡
Europe/Asia/
South America
ITU K.21
Form Factor
Radial-leaded
TRF600-150
TR600-150F-EX
TRF600-160
TRF600-400
TRF250-120
TRF250-120T
TRF250-145
TRF250-183
TRF250-184
Access network equipment (†)
Remote terminals, line repeaters,
multiplexers, cross-connects,
WAN equipment
North America
GR1089 Port Type
5
‡
TRF600-160
TRF600-400
TS600-170F
TS600-200F
TS600-400F
TSM600-250F
TSM600-400F
FT600-1250**
Europe/Asia/
South America
ITU K.45
TRF250-120
TRF250-120T
TRF250-145
TRF250-183
TRF250-184
Central office switching equipment (†)
Analog/POTS linecards, ISDN linecards,
xDSL modems, ADSL/VDSL splitters,
T1/E1 linecards, multiplexers,
CSU/DSU, servers
Europe/Asia/
South America
ITU K.20
TRF250-120
TRF250-120T
TRF250-145
TRF250-183
TRF250-184
Primary protection modules (†)
MDF modules, Network Interface
Devices (NID)
North America
Telcordia GR-974
Europe/Asia/
South America
ITU K.20
TRF250-183
TRF250-184
TRF250-055UT
TRF250-080U
TRF250-110U
TRF250-120
TRF250-120T
TRF250-145
TRF250-183
TRF250-184
Short-haul/intrabuilding communications
equipment (†)
LAN equipment, VoIP cards, cable
telephony NIUs, wireless local loop
handsets
Europe/Asia/
South America
ITU K.21
North America
GR1089 Port Type 2
‡
GR1089 Port Type
4
‡
TRF250-080U
TRF250-120
TRF250-120T
TRF250-145
TRF250-183
TRF250-184
TRF250-120
TRF250-120T
TRF250-145
TRF250-183
TRF250-184
TS250-130F
TSV250-130F
TSL250-080F
TS250-130F
TSV250-130F
TSL250-080F
TS250-130F
TSV250-130F
TCF250-100T
TCF250-120T
TCF250-145T
TCF250-180
North America
GR1089 Port Type
1
‡
TRF600-160
TRF600-400
TS600-170F
TS600-200F
TS600-400F
TSM600-250F
TSM600-400F
FT600-1250**
TS250-130F
TSV250-130F
TCF250-180
TS250-130F
TSV250-130F
Surface-mount
TS600-170F
TS600-200F
TSM600-250F
TSM600-400F
TS250-130F
TSV250-130F
Chip
Application
Customer Premises equipment
IT equipment
Analog modems, V.90 modems,
ISDN modems, xDSL modems,
ADSL splitters, phone sets, fax machines,
answering machines, caller ID, internet
appliances, PBX systems, POS terminals,
wall plugs
12
214
RoHS Compliant, ELV Compliant
PolySwitch Resettable Devices
– Telecommunications & Networking Devices
Protection Application Guide for Telecommunications and Networking Devices*
Overcurrent Protection
Region/
Specification
North America
GR1089 Port Type
4
‡
Form Factor
Radial-leaded
TRF250-080U
TRF250-120
TRF250-120T
TRF250-145
TRF250-183
TRF250-184
IEEE 802.3AF/AT Power over
Ethernet protection
Powered Ethernet switches and terminals,
IP phones, wireless LAN base stations,
microcellular base stations, VoIP cards
Cable telephony powering system
Power passing taps
*
†
‡
**
††
‡‡
Cont’d
Application
LAN intrabuilding power cross protection
LAN equipment, VoIP cards, IP phones
Surface-mount
TSL250-080F
TS250-130F
TSV250-130F
Chip
decaSMDC050F/60-2
††
BBRF550
‡‡
This list is not exhaustive. TE Circuit Protection welcomes our customers’ input for additional application ideas for PolySwitch resettable devices.
For improved line balance in these applications, resistance-matched parts are recommended.
May require additional impedance or coordination with primary protector.
FT600-1250 are surface mount telecom fuse devices. FT600-0500 and FT600-2000 reference also available. See telecom fuses section.
For details on decaSMDC050F/60-2, see surface-mount devices section.
For details on BBRF series, see radial-leaded devices section.
Agency Specification/Selection Guide for Telecommunications and Networking Devices
Use the guide below to select the PolySwitch devices which are typically used in your application. The following pages contain the
specifications for the part numbers recommended below. PolySwitch devices assist telecommunication equipment in meeting the applicable
protection requirements of these industry specifications. Refer to individual agency specifications for test procedures and circuit schematics.
Users should independently evaluate the suitability of, and test each product for their application.
Family
TCF250
Product*
TCF250-100T
Lightning
ITU K.20 – 1.0kV 10/700µs
GR-1089 Port Types 2 & 4 – 1st Level
Power Cross/Contact/Induction
PRC YD/T694
ITU K.20/21/45 – 0.2A
2
s
ITU K.20/21/45 – 1A
2
s
†
GR-1089 Port Type 4 – 120V
AC
, 25Asc
TCF250-120T
TCF250-145T
TCF250-180
ITU K.20/21/45 – 1.5kV 10/700µs
ITU K.20/21/45 – 4.0kV 10/700µs
†
GR-1089 Port Types 2 & 4 – 1st Level
ITU K.20/21/45 – 230V
AC
, 10Ω
ITU K.20/21/45 – 0.2A
2
s
ITU K.20/21/45 – 1A
2
s
†
ITU K.20/21/45 – 10A
2
s
†
GR-1089 Port Type 4 – 120V
AC
, 25Asc
* Applies to all products which share the same prefix.
† Tested with 230V gas discharge tube primary protector.
12
RoHS Compliant, ELV Compliant
215
Agency Specification/Selection Guide for Telecommunications and Networking Devices
Family
TRF250
Product*
TRF250-055UT
TRF250-080U
Lightning
ITU K.20 – 1.0kV 10/700µs
ITU K.20 – 1.0kV 10/700µs
GR-1089 Port Types 2 & 4 – 1st Level
Power Cross/Contact/Induction
ITU K.20 – 230V
AC
, 10Ω
ITU K.20 – 230V
AC
, 10Ω
ITU K.20 – 0.2A
2
s
ITU K.20 – 1A
2
s
†
GR-1089 Port Type 4 – 120V
AC
, 25Asc
TRF250-110U
TRF250-120
TRF250-120T
TRF250-120U
TRF250-120UT
TRF250-145
TRF250-145U
TRF250-183
TRF250-184
ITU K.20/21/45 – 1.5kV 10/700µs
ITU K.20/21/45 – 4.0kV 10/700µs
‡
GR-1089 Port Types 2 & 4 – 1st Level
ITU K.20/21/45 – 230V
AC
, 10Ω **
ITU K.20/21/45 – 0.2A
2
s
ITU K.20/21/45 – 1A
2
s
‡
ITU K.20/21/45 – 10A
2
s
‡
GR-1089 Port Type 4 – 120V
AC
, 25Asc
TS250/TSV250
TSV250-130F
TS250-130F
ITU K.20/21/45 – 1.5kV 10/700µs
ITU K.20/21/45 – 4.0kV
10/700µs
†
ITU K.20/21/45 – 230V
AC
, 10Ω
ITU K.20/21/45 – 0.2A
2
s
ITU K.20/21/45 – 1A
2
s
†
ITU K.20/21/45 – 10A
2
s
†
GR-1089 Port Type 4 – 120V
AC
, 25Asc
TS250-130F-RB
ITU K.20/21/45 – 1.5kV 10/700µs
ITU K.20/21/45 – 4.0kV 10/700µs
‡
GR-1089 Port Types 2 & 4 – 1st Level
ITU K.20/21/45 – 230V
AC
, 10Ω
ITU K.20/21/45 – 0.2A
2
s
ITU K.20/21/45 – 1A
2
s
‡
ITU K.20/21/45 – 10A
2
s
‡
GR-1089 Port Type 4 – 120V
AC
, 25Asc
TSL250
TSL250-080F
GR-1089 Port Types 2 & 4 – 1st Level
ITU K.20 – 1.0kV 10/700µs
GR-1089 Port Type 4 – 120V
AC
, 25Asc
ITU K.20/21/45 – 230V
AC
, 10Ω
ITU K.20/21/45 – 0.2A
2
s
ITU K.20/21/45 – 1A
2
s
†
TRF600
TRF600-150
TR600-150F-EX
TR600-150F-EX-RA-B-0.5
TRF600-160
TRF600-400
TS600
TS600-170F
TS600-200F-RA
TIA-968-A Types A & B
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
††
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
††
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
††
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
TIA-968-A Types A & B
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
††
UL60950 – 600V
AC
, 40Asc
UL60950 – 600V
AC
, 40Asc
UL60950 – 600V
AC
, 40Asc
Telcordia GR-1089 – 600V
AC
, 60Asc
Telcordia GR-1089 – 600V
AC
, 60Asc
UL60950 – 600V
AC
, 40Asc
Telcordia GR-1089 – 600V
AC
, 60Asc
ITU K.20/21/45 – 1.5kV 10/700µs
ITU K.20/21/45 – 4.0kV 10/700µs
†
GR-1089 Port Types 2 & 4 – 1st Level
ITU K.20/21/45 – 230V
AC
, 10Ω
ITU K.20/21/45 – 0.2A
2
s
ITU K.20/21/45 – 1A
2
s
†
ITU K.20/21/45 – 10A
2
s
†
GR-1089 Port Type 4 – 120V
AC
, 25Asc
Cont’d
GR-1089 Port Types 2 & 4 – 1st Level
12
TSM600
TS600-400F
TSM600-250F
TSM600-250F-RA
TSM600-400F
TIA-968-A Types A & B
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
††
TIA-968-A Types A & B
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
FT600
‡‡
FT600-0500
FT600-1250
FT600-2000
*
†
‡
**
††
‡‡
UL60950 – 600V
AC
, 40Asc
Telcordia GR-1089 – 600V
AC
, 60Asc
UL60950 – 600V
AC
, 40Asc
Telcordia GR-1089 – 600V
AC
, 60Asc
UL60950 – 600V
AC
, 40Asc
TIA-968-A - Types A & B
GR-1089 Port Types 1, 3, & 5 – 1st & 2nd Level
Telcordia GR-1089 – 600V
AC
, 60Asc
Applies to all products which share the same prefix.
Tested with 230V gas discharge tube primary protector.
Tested with 350V gas discharge tube primary protector.
See SCD for additional application fault ratings.
May require additional series resistor to help telecommunication equipment pass Surge 3 (1kV, 10/1000µs).
See telecom fuses section.
216
RoHS Compliant, ELV Compliant
PolySwitch Resettable Devices
– Telecommunications & Networking Devices
Table T1
Product Series: Size, Current Rating, Voltage Rating, Typical Resistance for
Telecommunications and Networking Devices
TS600
TSM600
600
TCF250
Voltage Rating (V
AC
)*
(Interrupt)
250
TRF250
250
TS250
250
TSV250
250
TSL250
250
TRF600
600
Specification
Hold Current (A)
0.055
0.080
0.100
0.110
0.120
0.130
0.145
0.150
0.160
0.170
0.183
0.184
0.200
0.250
0.400
ITU
GR-1089
Ports 2 & 4
ITU
GR-1089
Ports 2 & 4
ITU
GR-1089
Ports 2 & 4
ITU
GR-1089
Ports 2 & 4
GR-1089
Ports 2 & 4
UL60950
GR-1089
Ports 1, 3, & 5
UL60950
GR-1089
Ports 1, 3, & 5
—
—
11.0Ω
—
10.5Ω
—
7.0Ω
—
—
—
—
—
—
—
—
20.0Ω
17.0Ω
—
7.0Ω
8.0Ω
—
4.5Ω
—
—
—
1.3Ω
1.9Ω
—
—
—
—
—
—
—
—
9.0Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5.5Ω
—
—
—
—
—
—
—
—
—
—
8.0Ω
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
11.0Ω
—
—
8.5Ω
3.5Ω
1.2Ω
—
—
—
—
—
—
—
8.0Ω
6.0Ω
—
—
—
—
—
1.2Ω
Voltage Ratings for Telecommunications and Networking Devices
For circuit protection telecommunications devices there are two applicable voltage ratings. These are
V
MAX
Operating
and
V
MAX
Interrupt.
To help understand the nature of these two different voltage ratings, the following definitions are provided:
V
MAX
Operating
: For telecommunications devices this is the voltage used to obtain component recognition under UL1434. Most circuit
protection devices are certified at 60V but can withstand higher V
MAX
Interrupt conditions as noted above.
See Table T3 for its V
MAX
Operating.
*V
MAX
Interrupt
: Under specified conditions this is the highest voltage that can be applied to the device at the maximum current. Devices
have been designed to trip safely under higher power level cross conditions, as listed above, to assist equipment in
meeting the appropriate industry conditions.
12
RoHS Compliant, ELV Compliant
217
综合技术交流
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
