English
Language : 

R28-900-BHL_14 Datasheet, PDF (1/1 Pages) Okaya Electric America, Inc. – SURGE PROTECTIVE DEVICES
R28 SERIES
SURGE PROTECTIVE DEVICES
Features
● Quick response for surge.
● High impulse current capacity.
● It can withstand alternating current.
● Excellent insulation resistance and small
capacitance.
● Recommendation of ITU-T conformity.
Safety Standard
UL
:UL497B
:UL1449
File No.
E139599
E332107
Applications
● Telephone, PBX, Wireless base station, Optical
transmission equipments, CATV transmission
equipments, Fire alarm systems and Home
security systems.
● Dimensions
25min. A±0.2 25min.
φ 8.0±0.25
Unit: mm
Model Number
A
R28-†††-BHL
5.7
R28-†††-BJL
6.05
R28-†††-BKL
7.5
Electrical Specifications (Low Voltage Type)
● Model numbering system
R28 351 B H L
DC sparkover
Voltage
351 35X10¹=350V
Series Name
Type of taping
R28 2 electrode arrester
R38 3 electrode arrester
B Bulk
Type of wire
L With lead
None Without lead
Length H 5.7mm
J 6.05mm
K 7.5mm
O 10.0mm
(Conforms to ITU-T)
Safety
Standard
UL UL
497B 1449
Model Number
DC Sparkover
Voltage
100V/s~2,000V/s
(V)
Impulse
Sparkover
Voltage
100V/μs (V)
Impulse
Discharge
Current
8/20ms (A)
Alternating
Discharge Current
50Hz, 1s
10 times (A)
Impulse
Life Test
10/1,000μs
100A (times)
Insulation
Resistance
min. (MΩ)
Ο - R28-900-BHL
90V±20%
450
Ο - R28-151-BHL
150V±20%
500
Ο - R28-231-BHL
230V±20%
600
Ο - R28-251-BHL
250V±20%
Ο {*1 R28-301-BHL
300V±20%
650
10,000
10
Ο {*1 R28-351-BHL
350V±20%
750
Ο {*1 R28-401-BHL
400V±20%
800
Ο {*1 R28-471-BHL
470V±20%
900
Ο {**12 R28-601-BHL
600V±20%
1,300
Electrical Specifications (High Voltage Type)
300
104
Capacitance
max. (pF)
1.5
Safety
Standard
UL
1449
{
{
{
{
{
{
{
{
****************1212121212121212
Model Number
R28-801-BHL
R28-102-BHL
R28-152-BHL
R28-242-BJL
R28-302-BKL
R28-362-BKL
R28-402-BKL
R28-452-BKL
DC Sparkover
Voltage
500V/s
(V)
Impulse
Discharge
Current
8/20μs (A)
Impulse
Life Test
8/20μs
1,000A (times)
Insulation
Resistance
min. (MΩ)
Capacitance
max. (pF)
Withstand
Voltage test
800V±20%
1,000V±20%
-
1,500V±20%
2,400V±20%
10,000
300
3,000V±20%
104
1.5
AC1,250V 3s
AC1,500V 60s
3,600V±20%
4,000V±20%
4,500V±20%
AC1,800V 3s
AC2,000V 60s
*¹ Rated voltage AC125V: Approved if it is connected to UL approved varistor (V1.0mA≥270V, D≥φ 14mm).
*² Rated voltage AC250V: Approved if it is connected to UL approved varistor (V1.0mA≥470V, D≥φ 14mm).
128