PL
IA
NT
Features
■
Formerly
■
■
■
■
■
■
Applications
■
Combo voice / xDSL linecards
■
Voice linecards
■
MDF, primary protection modules
■
Process control equipment
■
Test and measurement equipment
■
General electronics
brand
Extremely high speed performance
Blocks high voltages and currents
Very high bandwidth; GHz compatible
Small package, minimal PCB area
Simple, superior circuit protection
RoHS compliant*, UL Recognized
*R
oH
S
CO
M
TBU
™
C650 and C850 Protectors
Transient Blocking Units - TBU
™
Devices
Bourns
®
C650 and C850 series products are high speed
bidirectional protection components, constructed using
MOSFET semiconductor technology, designed to protect
against faults caused by short circuits, AC power cross,
induction and lightning surges.
The TBU™ high speed protector, triggering as a function of
the MOSFET, blocks surges and provides an effective barrier
behind which sensitive electronics are not exposed to large
voltages or currents during surge events. The TBU™ device is
provided in a surface mount DFN package and meets industry
standard requirements such as RoHS and Pb Free solder
reflow profiles.
Absolute Maximum Ratings (T
amb
= 25 °C)
Symbol
V
imp
V
rms
T
op
T
stg
Parameter
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
C650-xxx-WH
C850-xxx-WH
C650-xxx-WH
C850-xxx-WH
Value
650
850
300
425
-40 to +85
-65 to +150
Unit
V
V
°C
°C
Agency Approval
UL recognized component File # E315805.
Industry Standards
Description
GR-1089
Telcordia
GR-974
ITU-T
K.20, K.20E, K.21, K.21E, K.45
Port Type 1, 3, 5
Model
C650
C850
C650
C850
C850
Electrical Characteristics (T
amb
= 25 °C)
Symbol
I
op
Parameter
Maximum current through the device that will not cause
current blocking
Typical current for the device to go from normal operating
state to protected state
Cx50-100-WH
Cx50-180-WH
Cx50-260-WH
Cx50-100-WH
Cx50-180-WH
Cx50-260-WH
Cx50-100-WH
Cx50-180-WH
Cx50-260-WH
C650-100-WH
C650-180-WH
C650-260-WH
C850-100-WH
C850-180-WH
C850-260-WH
12
8
8
17
11
11
150
220
330
200
360
520
14.5
10
10
19
14
14
1
1
14
Min.
Typ.
Max.
100
180
260
Unit
mA
I
trigger
mA
I
out
Maximum current through the device
mA
R
TBU
Series resistance of the TBU
™
device
Ω
t
block
I
quiescent
V
reset
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
µs
mA
V
C650 and C850 TBU
™
protectors are bidirectional; specifications are valid in both directions.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
