Bourns ? TBU ? Product Examples
VOICE
VOICE Protection Solution Selection Guide
Qty
GND
Line 1
SLIC
TBU
TBU-PL060-100-WH
Line 1
MOV-10D201K
MOV-10D201K
Industry Standard
Telcordia GR-1089-CORE
Intra-building
Port Type 4
Surge & AC Withstand
1500 V, 100 A 2/10 μs
120 V rms , 25 A, 900 s
Bourns? TBU? Device Selection
TBU? Device Part OVP Device
Number Part Number
TBU-PL050-100-WH 1 MOV-07D201K
Qty
2
Line 2
SLIC
Line 2
Telcordia GR-1089-CORE
Intra-building
Port Type 4a
1000 V, 100 A 10/1000 μs
120 V rms , 25 A, 900 s
TBU-PL060-100-WH
1
MOV-10D201K
2
-VBAT
Review VOICE Protection Solution Selection Guide to select TBU?
and overvoltage part numbers to meet protection industry standard.
VDSL
Non-GR-1089-CORE Intra-
building Specifications
5000 V, 500 A 2/10 μs
230 V rms , 25 A, 900 s
1500 V, 100 A 2/10 μs
275 V rms , 25 A, 900 s
TBU-PL085-100-WH
TBU-PL085-100-WH
1
1
MOV-10D361K
MOV-10D431K
2
2
VDSL
Driver
C1a
2031-15T-SM
ITU-T Basic K.20, K.21, K.45
4000 V, 40 Ω 10/700 μs
230 V rms 10 Ω - 1000 Ω, 900 s
600 V rms 600 Ω, 0.2 s
4000 V, 40 Ω 10/700 μs
230 V rms 10 Ω -1000 Ω, 900 s
600 V rms 600 Ω, 0.1 s
TBU-PL075-100-WH
TBU-PL060-100-WH
1
1
MOV-10D361K
TISP4400M3BJ
2
2
TBU-CA050-500-WH
6000 V, 40 Ω 10/700 μs
C1b
ITU-T Enhanced K.20, K.21, K.45
240 V rms 10 Ω - 1000 Ω, 900 s
600 V rms 600 Ω, 0.2 s
600 V rms 600 Ω, 1 s*
1500 V rms , 200 Ω, 2 s*
TBU-PL085-100-WH
1
MOV-10D391K
2
T1/E1 Interface
T1a
Transformer
TTIP
TBU1
1.25 A
Fuse
Tx Tip
6000 V, 40 Ω 10/700 μs
240 V rms 10 Ω - 1000 Ω, 900 s
600 V rms 600 Ω, 1 s
1500 V rms , 200 Ω, 2 s
TBU-PL060-100-WH
1
TISP4500H3BJ
2
P850-U
2031-42T-SM
T1/E1 TRING
Physical Line
Interface
Unit RTIP
1
T1b
CM Transformer
1 8
2 7
3 6
4 5
TBU1
Fuse
1.25 A
1.25 A
Fuse
Tx Ring
Rx Tip
* GDT Special Test Protector with DC breakdown (DCBD) of less than 330 V.
Notes:
1) The Le9500, Le9520 and Le9530 (VE950 series) require a 200 mA Itrigger TBU ? device for normal operation. Other SLIC types should use
the 100 mA device.
RRING
1
P850-U
2031-42T-SM
2)
The MOV maximum continuous rms voltage rating should not be exceeded. The exception is where the data sheet highlights withstand
capability such as the 600 V rms, 1 A for 0.2 s, for example.
Fuse
1.25 A
Rx Ring
3) If EN55024 EMC compliance is required, the TBU ? device may require capacitors to be fitted between the Tip and Ring connections and
ground (i.e. in parallel with the MOV device). The capacitance value can be chosen to meet levels as follows:
    ?  10 nF for EN55024 Level 1 
    ?  20 nF for EN55024 Level 2 
    ?  47 nF for EN55024 Level 3 
Selection of capacitor voltage rating depends upon TBU ? part number selection. Recommendations include:
    ?  TBU-PL050 & TBU-PL060 Series: 120 VAC, 500 V Peak Surge Rated
    ?  TBU-PL075 & TBU-PL085 Series: 240 VAC, 750 V Peak Surge Rated
Depending upon the SLIC type, it is usually possible to remove any EMI capacitors present between the output of the SLIC and ground
when using capacitors C1 and C2 in parallel with the MOVs.
3
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TBU-DT085-300-WH 功能描述:浪涌抑制器 Dual Unidirectional TBU Device RoHS:否 制造商:Bourns 电压额定值:40 V 电流额定值:750 mA 工作温度范围:- 40 C to + 125 C 端接类型:SMD/SMT 封装 / 箱体:
TBU-DT085-500-WH 功能描述:浪涌抑制器 Dual Unidirectional TBU Device RoHS:否 制造商:Bourns 电压额定值:40 V 电流额定值:750 mA 工作温度范围:- 40 C to + 125 C 端接类型:SMD/SMT 封装 / 箱体: