SRLC05, e3
Low Capacitance TVSarray ™
SCOTTSDALE DIVISION
DESCRIPTION
This TRANSIENT VOLTAGE SUPPRESSOR (TVS) is packaged in an SOT-143
configuration with very low capacitance giving protection for two high speed data
lines connected to terminals 2 and 3. This protection is from electrostatic discharge
(ESD) and other induced voltage surges such as electrical fast transient/burst (EFT)
that can damage or upset sensitive circuitry as defined in IEC 61000–4-2 and IEC
61000-4-4. With its four steering diodes and one TVS, any positive voltage on the
data lines exceeding one diode voltage drop above the positive voltage supply line
(Vcc) connected to terminal 4 will be diverted away from the protected line to the
supply line. If this also exceeds the TVS voltage, the surge is directed to ground
(Gnd) at terminal 1. Negative voltages greater than one voltage drop are diverted to
ground. This SRLC05 can also serve as a bi-directional, low capacitance TVS when
simply using terminals 2 and 3. In a similar configuration, the terminal 1 can
optionally be tied to ground.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
APPEARANCE
WWW .
Microsemi
.C
OM
SOT-143
FEATURES
•
•
•
•
•
•
Protects 2 high-speed data lines
Surge protection per IEC 61000-4-2, IEC 61000-4-4
Optionally provides bi-directional protection
ULTRA LOW CAPACITANCE 6 pF
UL94V-0 Flammability Classification
RoHS Compliant devices available by adding “e3” suffix
•
•
•
•
•
•
APPLICATIONS / BENEFITS
EIA-RS485 data rates:
5 Mbs
10 Base T Ethernet
USB date rate: 900 Mbs
Video line protection
Wan/Lan
ISDN S/T
MAXIMUM RATINGS
•
•
•
•
Operating Temperature: -55°C to +150°C
Storage Temperature: -55°C to +150°C
Peak Pulse Power: 200 watts (8/20 µs, Figure 1)
Pulse Repetition Rate: < .01%
•
•
•
•
MECHANICAL AND PACKAGING
CASE: Molded SOT-143 Surface Mount
TERMINALS: Tin-Lead or RoHS Compliant
annealed matte-Tin plating solderable per MIL-STD-
750, method 2026
WEIGHT: 0.035 grams (approximate)
MARKING: Marking code “R05” and Pin #1 defined
by dot on top of package
ELECTRICAL CHARACTERISTICS PER LINE @ 25
o
C Unless otherwise specified
STANDOFF
VOLTAGE
V
WM
VOLTS
MAX
BREAKDOWN
VOLTAGE
V
BR
@1 mA
VOLTS
MIN
CLAMPING
VOLTAGE
V
C
@ 1 Amp
(Figure 2)
VOLTS
MAX
CLAMPING
VOLTAGE
V
C
@ 5 Amp
(Figure 2)
VOLTS
MAX
PEAK FORWARD
VOLTAGE
V
f
@ 1 Amp
(Figure 2)
VOLTS
MAX
STANDBY
CURRENT
I
D
@ 5 Volts
µA
MAX
CAPACITANCE
C
@0V ,(f = 1 MHz)
Between I/O pins
and GND
pF
TYP
MAX
CAPACITANCE
C
@0V ,(f = 1MHz)
Between I/O pins
pF
TYP
MAX
PART
NUMBER
DEVICE
MARKING
SRLC05
R05
5.0
5.6
8
11
2
2
4
6
2
3
Note: Transient Voltage Suppressor (TVS) product is normally selected based on its stand off voltage V
WM
. Product selected voltage should be
equal to or greater than the continuous peak operating voltage of the circuit to be protected.
SRLC05
Copyright
©
2005
9-30-2005 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
SRLC05, e3
Low Capacitance TVSarray ™
SCOTTSDALE DIVISION
Symbol
V
WM
V
BR
V
C
I
D
C
SYMBOLS & DEFINITIONS
Definition
Stand Off Voltage: Maximum dc voltage that can be applied over the operating temperature range.
Vwm must be selected to be equal or be greater than the operating voltage of the line to be protected.
Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current
Clamping Voltage: Maximum clamping voltage across the TVS device when subjected to a given current at a
pulse time of 20
µs.
Standby Current: Leakage current at V
WM.
Capacitance: Capacitance of the TVS as defined @ 0 volts at a frequency of 1 MHz and stated in picofarads.
WWW .
Microsemi
.C
OM
CIRCUIT
P
PP
– Peak Pulse Power - kW
td – Pulse Time – Sec.
FIGURE 1
OUTLINE AND SCHEMATIC
FIGURE 2
Pulse Wave Form
DIM
A
B
C
C1
D
E
F
G
H
I
J
INCHES
MIN
MAX
0.070
0.080
0.047
0.055
0.030
0.037
0.015
0.020
0.110
0.119
0.035
0.044
0.071
0.079
0.0006
0.006
0.003
0.007
0.018
0.023
0.083
0.093
MILLIMETERS
MIN
MAX
1.78
2.03
1.20
1.40
0.77
0.94
0.37
0.50
2.80
3.04
0.89
1.17
1.80
2.00
0.013
0.05
0.085
0.17
0.45
0.60
2.10
2.50
SRLC05
OUTLINE
Copyright
©
2005
9-30-2005 REV B
PAD LAYOUT
SCHEMATIC
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Test/Measurement
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