SiBar Thyristor
SiBar Thyristor Surge Protectors
Raychem Circuit Protection’s
SiBar thyristor surge protection
devices are designed to help pro-
tect sensitive telecommunication
equipment from the hazards
caused by lightning, power con-
tact, and power induction. These
devices have a high electrical
surge capability to help protect
against transient faults and a high
off-state impedance, rendering
them virtually transparent during
normal system operation.
SiBar thyristor surge protectors
are designed to assist telecom-
munication and computer tele-
phony equipment in meeting the
applicable requirements and
industry specifications.
4
Benefits:
• Helps provide protection for
sensitive telecom electronic
equipment
• Low leakage current
• Low power dissipation
• Fast, reliable operation
• No wear-out mechanisms
• Helps designers meet world-
wide telecom standards
• Helps reduce warranty and
service costs
• Easy installation
• Helps improve power efficiency
of equipment
Features:
• Bidirectional transient voltage
protection
• High off-state impedance
• Low on-state voltage
• High surge capability
• Short-circuit failure mode
• Surface-mount technology
• Lead-free leads available on
all parts
Applications:
•
•
•
•
•
•
•
Modems
Fax machines
PBX systems
Phones
POS systems
Analog and digital linecards
Other customer premise and
network equipment requiring
protection
Devices in this section are grouped by:
Surge Capability, Maximum Off-State Voltage, Package Size
Raychem Circuit Protection
SiBar Thyristor Surge Protectors
339
Selection Guide for SiBar Thyristor Surge Protectors
Step 1.
Determine the circuit’s operating parameters.
Fill in the following information about the circuit:
Maximum ambient operating temperature ______________________
Maximum DC supply voltage (V
DC
Max.
.
) ________________________
Maximum ringing (AC) voltage (V
AC
Max.) ______________________
System voltage damage threshold
Maximum fault current and duration
Maximum system operating current
Applicable industry requirements
__________________________
__________________________
__________________________
__________________________
Step 2.
Calculate the maximum operating voltage of your system.
Maximum operating voltage = V
DC
Max. + (1.414 x V
AC
Max.)
Refer to Table V1 to select a SiBar thyristor device with a maximum off-
state voltage (V
DM
) rating that is close to, but greater than, the maxi-
mum operating voltage of your system.
Step 3.
Verify that the system voltage damage threshold is
greater than the rated maximum breakover voltage (V
BO
).
Refer to Table V1 to confirm that the maximum breakover voltage of the
device you selected in Step 2 is less than the system voltage damage
threshold.
4
340
SiBar Thyristor Surge Protectors
Raychem Circuit Protection
SiBar Thyristor
Selection Guide for SiBar Thyristor Surge Protectors continued
Step 4.
Verify that the maximum fault current of the system and
its duration or the fault current defined in the industry
specification(s) are less than the surge current rating of
the device selected. For help in determining which indus-
try specifications may apply, refer to the Protection
Application Guide on the next page.
Refer to Table V2 for SiBar thyristor surge current ratings applicable to
TIA 968-A (FCC Part 68), Telcordia GR-1089, ITU K.20, K.21, K.45
industry specifications.
Step 5.
Verify that the maximum system operating current is less
than the minimum hold current rating (I
H
) in Table V1 for
the device selected.
Using Figure V4, verify that I
H
is greater than the maximum system
operating current over the entire ambient operating temperature range.
(As with I
H
, V
DM
and V
BO
also vary with ambient temperature, to a lesser
degree. Figures V2 and V3 can be used to determine that the device
selected continues to meet your requirements over the ambient operat-
ing temperature range.)
Step 6.
Verify that the dimensions in Table V4 for the SiBar
thyristor device are compatible witht the application’s
space requirements.
4
Raychem Circuit Protection
SiBar Thyristor Surge Protectors
341
Protection Application Guide for SiBar Thyristor Surge Protectors
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.
PolySwitch Resettable Devices
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
Access network equipment (*)
Remote terminals, line repeaters,
multiplexers, cross-connects,
WAN equipment
Region/
Specification
SiBar Thyristor
Surge Protectors
1
Key Device Selection Citeria
Small Footprint
Low Resistance
TR600-150
TS600-170
TR600-150-RA
TS600-200-RA
Fast Time-to-Trip
TR600-150-RB
TS600-170
North America
TVBxxxSA(-L) or
TIA-968-A (FCC Part 68), TVAxxxSA(-L) with
UL 1950,
TR/TS; TVBxxxSC(-L)
UL 1459
with TS/TR or fuse
Europe/Asia/
TVBxxxSA(-L)
South America
TVAxxxSA(-L)
ITU K.21
North America
Telcordia GR-1089
Europe/Asia/
South America
ITU K.45
North America
Telcordia GR-1089
Europe/Asia/
South America
ITU K.20
North America
Telcordia GR-974
Europe/Asia/
South America
ITU K.20
TVBxxxSC(-L)
TVBxxxSA(-L)
TVAxxxSA(-L)
TR250-120
TR250-145
TS250-130
TSV250-130
TR600-150-RA
TS600-200-RA
TR250-120
TR250-145
TS250-130
TSV250-130
TR600-150-RA
TS600-200-RA
TR250-120
TR250-145
TS250-130
TSV250-130
TR250-180U
TGC250-120T
TR250-120T
TS250-130
TSV250-130
TSL250-080
TR250-120
TS250-130
TSV250-130
TR250-120
TR250-145
TS250-130
TSV250-130
TSL250-080
miniSMDC014
SMD030
TR250-180U
TS250-130-RA
TSV250-130
TR600-160-RA
TS600-200-RA
TR250-180U
TS250-130-RA
TSV250-130
TR600-160-RA
TS600-200-RA
TR250-180U
TS250-130-RA
TSV250-130
TR250-180U
TC250-145T
TR250-145-RA
TS250-130-RA
TSV250-130
TR250-145
TR250-180U
TS250-130-RA
TR250-180U
TS250-130-RA
TSV250-130
TSL250-080
SMD030-2018
TR250-120T-R2
TS250-130-RB
TR600-150-RB
TS600-170
TR250-120T-R2
TS250-130-RB
4
Central office switching equipment (*)
Analog/POTS linecards, ISDN linecards,
xDSL modems, ADSL/VDSL splitters,
T1/E1 linecards, multiplexers,
CSU/DSU, servers
TVBxxxSC(-L)
TVBxxxSA(-L)
TVAxxxSA(-L)
TR600-150-RB
TS600-170
TR250-120T-R2
TS250-130-RB
Primary protection modules (*)
MDF modules, Network Interface
Devices (NID)
N/A
N/A
TR250-180U
TGC250-120T
TR250-120T-R2
TS250-130-RB
TSV250-130
TR250-120T-R2
TSL250-080
TR250-120T-R2
TS250-130-RB
Short-haul/intrabuilding communications
equipment (*)
LAN equipment, VoIP cards, cable
telephony NIU’s, wireless local loop
handsets
North America
Telcordia GR-1089
intrabuilding
Europe/Asia/
South America
ITU K.21
TVBxxxSA(-L)
TVAxxxSA(-L)
TVBxxxSA(-L)
TVAxxxSA(-L)
LAN intrabuilding power cross protection
LAN equipment, VoIP cards, IP phones
IEEE 802.3 Power over LAN protection
Powered ethernet switches and terminals,
IP phones, wireless LAN base stations,
microcellular base stations, VoIP cards
Cable telephony powering systems
Power passing taps
1
TVBxxxSA(-L)
TVAxxxSA(-L)
N/A
TSL250-080
TVAxxxSA
SMD030-2018
N/A
BBR550
BBR750
BBR550
Notes:
This list is not exhaustive. Raychem Circuit Protection welcomes our customers’ input for additional application ideas.
For more information on Raychem Circuit Protection PolySwitch resettable devices, refer to telecommunication and networking devices on page 301.
* For improved line balance in these applications, resistance-matched parts are recommended. See Telecom and Networking section, page 301 for details.
(-L) Lead-free leaded devices are also applicable for these applications.
342
SiBar Thyristor Surge Protectors
Raychem Circuit Protection
SiBar Thyristor
Table V1. Product Electrical Characteristics for SiBar Thyristor Surge Protectors
(-L: Lead-free leaded devices)
Part Number
TVA270SA
TVA270SA-L
NEW
V
DM
Max. (V)
270
270
58
170
170
200
200
270
270
300
200
270
300
170
170
200
200
270
270
300
V
BO
Max. (V)
365
365
78
265
265
320
320
365
365
400
320
365
400
265
265
320
320
365
365
400
I
H
Min. (mA)
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
V
T
Max. (V)
3.0
3.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
C
1
Typ. (pF)
22
22
43
20
20
20
20
20
20
20
25
25
25
50
50
50
50
50
50
50
NEW
NEW
NEW
NEW
TVB058SA-L
TVB170SA
TVB170SA-L
TVB200SA
TVB200SA-L
TVB270SA
TVB270SA-L
TVB300SA-L
TVB200SB-L
TVB270SB-L
TVB300SB-L
TVB170SC
TVB170SC-L
TVB200SC
TVB200SC-L
TVB270SC
TVB270SC-L
TVB300SC-L
NEW
Notes: All electrical characteristics are measured at 25°C.
V
DM
measured per UL497B pulse requirements: at max. off-state leakage current (I
DM
) = 5
µA.
V
BO
Measured at 100V/µs.
C
1
measured at 1 MHz with a 50 V
DC
bias.
4
di/dt
(A/µs)
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
dV/dt
(V/µs)
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
2000
Table V2. Surge Current Rating for SiBar Thyristor Surge Protectors
(-L: Lead-free leaded devices)
Part
Description
TVA270SA
TVA270SA-L
NEW
IEC 61000-4-5*ITU K.20/21/45* I
TSM
TIA-968-A (FCC Part 68)*
Telcordia GR-1089*
I
pp
(A)
I
pp
(A)
I
pp
(A)
I
pp
(A)
I
pp
(A)
I
pp
(A)
I
pp
(A)
Min.
5 x 320 µs 10 x 560 µs 10 x 160 µs 10 x 1000 µs 2 x 10 µs
8 x 20 µs
5 x 310 µs
(A)
90
70
100
50
150
150
90
22
90
70
100
50
150
150
90
22
55
90
90
90
90
90
90
90
100
100
100
100
100
100
100
100
100
100
55
70
70
70
70
70
70
70
100
100
100
150
150
150
150
150
150
150
70
100
100
100
100
100
100
100
150
150
150
200
200
200
200
200
200
200
50
50
50
50
50
50
50
50
80
80
80
100
100
100
100
100
100
100
150
150
150
150
150
150
150
150
250
250
250
500
500
500
500
500
500
500
150
150
150
150
150
150
150
150
250
250
250
400
400
400
400
400
400
400
55
90
90
90
90
90
90
90
100
100
100
150
150
150
150
150
150
150
22
22
22
22
22
22
22
22
30
30
30
60
60
60
60
60
60
60
NEW
NEW
NEW
NEW
TVB058SA-L
TVB170SA
TVB170SA-L
TVB200SA
TVB200SA-L
TVB270SA
TVB270SA-L
TVB300SA-L
TVB200SB-L
TVB270SB-L
TVB300SB-L
TVB170SC
TVB170SC-L
TVB200SC
TVB200SC-L
TVB270SC
TVB270SC-L
TVB300SC-L
NEW
Notes: *Lightning current wave forms for applicable industry specification.
I
TSM
, peak on-state surge current is measured at 60 Hz, one cycle.
di/dt: critical rate-of-rise of on-state current (pulsed power amplifier Vmax=600V; C=30
µF).
dV/dt: critical rate-of-rise of off-stage voltage (linear wave form, V
D
= rated V
BO
, Tj = 25°C).
Raychem Circuit Protection
SiBar Thyristor Surge Protectors
343
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