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Features
■ Extremely high speed performance
■ Blocks high voltages and currents
■ Two TBU ? protectors in one small package
■ Simple, superior circuit protection
Bourns ? Model P500-G and P850-G Series
TBU ? HSPs are not recommended for POTS
applications. This series is suited for
applications requiring a dual bidirectional device
where 50 ohms of series resistance is acceptable.
For new SLIC applications, we recommend that
customers evaluate our TBU-PL Series .
■ Minimal PCB area
■ RoHS compliant*, UL Recognized
P500-G and P850-G Series Dual TBU ? High-Speed Protectors
Transient Blocking Units - TBU ? Devices
Bourns ? Model P500-G and P850-G TBU ? products are dual
high-speed bidirectional protection components, constructed
using MOSFET semiconductor technology, designed to protect
against faults caused by short circuits, AC power cross,
Agency Approval
UL recognized component File # E315805.
Industry Standards
induction and lightning surges.
Description
Model
The TBU ? high speed protector, triggering as a function of
the MOSFET, blocks surges and provides an effective barrier
Telcordia
GR-1089
Port Type 2, 4
Port Type 3, 5
P500-G
P850-G
behind which sensitive electronics are not exposed to large
voltages or currents during surge events. The TBU ? device is
ITU-T
K.20, K.20E, K.21, K.21E, K.45
P850-G
provided in a surface mount DFN package and meets industry
standard requirements such as RoHS and Pb Free solder
re?ow pro?les.
Absolute Maximum Ratings (T amb = 25 °C)
Symbol
Parameter
Value
Unit
V imp
V rms
T op
T stg
Maximum protection voltage for impulse faults with rise time ≥ 1 μsec
Maximum protection voltage for continuous V rms faults
Operating temperature range
Storage temperature range
P500-Gxxx-WH
P850-Gxxx-WH
P500-Gxxx-WH
P850-Gxxx-WH
500
850
300
425
-40 to +85
-65 to +150
V
V
°C
°C
Electrical Characteristics (T amb = 25 °C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
P500-G120-WH
100
I op
Maximum current through the device that will not cause
current blocking
P500-G200-WH
P850-G120-WH
200
100
mA
P850-G200-WH
P500-G120-WH
150
200
I trigger
Typical current for the device to go from normal operating
state to protected state
P500-G200-WH
P850-G120-WH
275
150
mA
P850-G200-WH
P500-G120-WH
275
200
I out
Maximum current through the device
P500-G200-WH
P850-G120-WH
400
200
mA
P850-G200-WH
400
R device
Series resistance of the TBU ? device
50
55
Ω
R bal
t block
I quiescent
V reset
Line-to line series resistance difference between two TBU ? devices
Maximum time for the device to go from normal operating
state to protected state
Current through the triggered TBU ? device with 50 Vdc circuit
voltage
Voltage below which the triggered TBU ? device will transition to
normal operating state
0.7
22
2
1
Ω
μs
mA
V
The P-G series TBU ? devices are bidirectional; speci?cations are valid in both directions.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Speci?cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their speci?c applications.
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