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参数资料
| 型号： | 420LB35 |
| 厂商： | PROTEK DEVICES |
| 元件分类： | 保护电路 |
| 英文描述： | TELECOM, SURGE PROTECTION CIRCUIT, XMA |
| 文件页数： | 2/3页 |
| 文件大小： | 89K |
| 代理商： | 420LB35 |
420LB28
thru
420LE60
2
05048.R3 11/03
www.protekdevices.com
DEVICE CHARACTERISTICS
INSTALLATION INSTRUCTIONS
There are five (5) terminals on the LINE SIDE and five (5) terminals on
the EQUIPMENT SIDE of the 420LE, 4 data lines and one ground. Both
grounds are connected together internally. A single low impedance is
ground sufficient. Incoming data lines are cut or disconnected from the
equipment to insert the 420LE/B products. The incoming lines are to be
connected to the line side terminals as the equipment side lines are
connected to the equipment side terminals. The location of the product
should be as close to the equipment as possible. The 420LE/B series is
designed with a short circuit failure mode to give maximum protection. A
fuse, fussable link, or circuit breaker is recommended for each data/
signal line on the input side for those that require an open circuit failure
mode.
MAXIMUM RATINGS @ 25°C
ELECTRICAL CHARACTERISTICS @ 25°C
28.0
35.0
60.0
28.0
35.0
60.0
PROTEK
PART
NUMBER
MAXIMUM
OPERATING
LINE VOLTAGE
V
OP
± VOLTS
MAXIMUM
LEAKAGE
CURRENT
@ V
OP
I
D
A
MAXIMUM
CLAMPING
VOLTAGE
(8/20s)
@2,000A
V
C
VOLTS
MAXIMUM
CAPACITANCE
@ 0V, 1 MHz
C
pF
MAXIMUM
LINETHRUPUT
RESISTANCE
R
OHMS
40
60
85
40
60
85
5.0
420LE28
420LE35
420LE60
420LB28
420LB35
420LB60
2800
1500
1000
2800
1500
1000
12
Operating Line Current
100mA
Operating Temperature
-55 to 100
0C
Storage Temperature
-55 to 100
0C
Transient Source Voltage
6kV
Transient Current (8/20s)
10kA
Caution: A low DC resistance ground may not be indicative of a good
lightning ground. Lightning contains a broad spectrum of frequencies up
to 1 MHz. A low impedance path to ground at the transient frequencies
is necessary. A ground strap is recommended or a #6 AWG stranded
wire. For wire lengths over 1.5 meters, there may be some excessive
line to earth potential under severe thunderstorm conditions.
相关PDF资料 |
PDF描述 |
|---|---|
| 420LB60 | TELECOM, SURGE PROTECTION CIRCUIT, XMA |
| 421-13-206-41-001100 | DIP6, IC SOCKET |
| 422-43-250-41-001000 | DIP50, IC SOCKET |
| 422-43-252-41-001000 | DIP52, IC SOCKET |
| 421-13-208-41-001100 | DIP8, IC SOCKET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 420LB60 | 制造商:PROTEC 制造商全称:Protek Devices 功能描述:TWO LINE PAIR 4-20mA CONTROL LOOP PROTECTOR |
| 420LC-5VDC-10000HR | 制造商:Curtis Instruments 功能描述: |
| 420LE28 | 制造商:PROTEC 制造商全称:Protek Devices 功能描述:TWO LINE PAIR 4-20mA CONTROL LOOP PROTECTOR |
| 420LE35 | 制造商:ProTek Devices 功能描述:50V 2 LINE 4-20ma PCB |
| 420LE60 | 制造商:PROTEC 制造商全称:Protek Devices 功能描述:TWO LINE PAIR 4-20mA CONTROL LOOP PROTECTOR |
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