DE37
The DE37 surge absorbers have a 5mm pitch and are ideal for power lines and communication networks. This compact device can handle surges of up to 1500A(8/20μsec.) and is available in several voltages ranging from 300V to 4500V.The 400V part meets the standard for ADSL POTS* splitters:ITU-T(International Telecommunication Union test standard) K.20 and K.21 Basic Test Condition, and has already received good response from both service providers and home users in ADSL splitters.
Characteristics
•The 5mm pitch; radial taped parts can be mounted using automatic insertion equipment (the part is lower than 15.5mm).
(except the item of over 2700V)
•Also available in axial taping (the glass tube can be mounted flat using automatic insertion equipment).
•Can be used on megabit class high speed without attenuation of signal due a capacitance value of less than 1pF.
•Superior surge response characteristics due to microgap technology.
•High insulation resistance of over 100MΩ.
Dimension
Characteristics
| Part number | DC spark-over voltage (Vs) |
Insulation resistance (IR) |
Electrostatic capacitance 1kHz-6V max. |
Surge current capacity 8/20μsec. |
Surge life test 8/20μsec. 100A |
|
| DE37-301L | 300V(255~345) | 100MΩmin. | DC 100V | 1pF max. | 1500A | 300times |
| DE37-351M | 350V(280~420) | DC 250V | ||||
| DE37-401W | 400V(340~480) | |||||
| DE37-501M | 500V(400~600) | |||||
| DE37-272M | 2,700V(2,160~3,240) | DC 500V | 200times | |||
| DE37-302M | 3,000V(2,400~3,600) | |||||
| DE37-362M | 3,600V(2.880~4.320) | |||||
| DE37-452M | 4,500V(3,600~5,400) | DC 1000V | ||||
| Part number | Withstanding Voltage |
UL recognized | EN recognized | ||
| UL 497B 6) | UL1414 7) | UL1449 8) | EN60065 9) EN60950-1 |
||
| DE37-301L | ○ | - | - | - | |
| DE37-351M | ○ | - | - | - | |
| DE37-401W | ○ | - | - | - | |
| DE37-501M | ○ | - | - | - | |
| DE37-272M | AC1,000V-1min. AC1,200V-3sec |
– | ○ 1) | ○ 3) | - |
| DE37-302M | AC1,500V-1min. | – | ○ 1) | ○ 4) | ○ 5) |
| DE37-362M | AC1,800V-3sec | – | ○ 1) | ○ 4) | ○ 5) |
| DE37-452M | AC2,000V-1min. | – | ○ 2) | – | ○ 5) |
1):Approved if used together with a varistor (AC125V : V1mA≧270V 8 Joule Min at 2ms, AC250V : V1mA≧470V 8 Joule Min at 2ms), electrically connected in series by means such as twist and soldering, staking, welding etc.
2):Approved if used together with a varistor (V1mA≧470V, 8 Joule Min at 2ms), electrically connected in series by means such as twist and soldering, staking, welding etc.
3):Approved if used together with a varistor (AC125V : V1mA≧270V, D≧φ5mm), electrically connected in series by means such as twist and soldering, staking, welding etc.
4):Approved if used together with a varistor (AC125V : V1mA≧270V, D≧φ5mm, AC250V : V1mA≧470V, D≧φ5mm), electrically connected in series by means such as twist and soldering, staking, welding etc.
5):Approved if used together with a varistor (V1mA≧470V, D≧φ5mm), electrically connected in series by means such as twist and soldering, staking, welding etc.
6):UL Standard UL 497B File No. E175280 DC spark-over voltage is described as break down voltage in the UL report.
7):UL Standard UL 1414 File No. E89615
8):UL Standard UL 1449 File No. E318314
9):TÜV Report No.J50164439
Basic Conditions for ITU-T K.20
•Surge Test: 10/700μsec, 1.5kV/4kV (25Ω), 5 times.
•AC Induced Test : AC600V (600Ω), 1sec., 5 times.
•AC Cross Test: AC230V(10~1000Ω), 15min.
(however, AC230 is too low for the DE37-401W to react)
