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

•Radial taped parts can be mounted using 5mm pitch automatic insertion equipment for a total height lower than 15.5mm (except >2700V parts).
•Also available in axial taping (the glass tube can be mounted flat using automatic insertion equipment).
•Can be used on megabit communication equipment without attenuation of signal due its capacitance 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)
DE37-102M 1,000V(800~1,200) DC 500V
DE37-272M 2,700V(2,160~3,240) 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 4) UL1449 5) EN60065 6)
EN60950-1
DE37-301L - -
DE37-351M - -
DE37-401W - -
DE37-501M - -
DE37-102M
DE37-272M AC1,000V-1min.
AC1,200V-3sec
○ 1) -
DE37-302M AC1,500V-1min. ○ 2) ○ 3)
DE37-362M AC1,800V-3sec ○ 2) ○ 3)
DE37-452M AC2,000V-1min. ○ 2) ○ 3)
1): Approved if used with a varistor (125VAC : V1mA≧270V, φ≧5mm) electrically connected in series (soldered, crimped, or welded).
2): Approved if used with a varistor (125VAC : V1mA≧270V, φ≧5mm ; 250VAC : V1mA≧470V, φ≧5mm) electrically connected in series (soldered, crimped, or welded).
3): Approved if used with a varistor (V1mA≧470V, φ≧5mm) electrically connected in series (soldered, crimped, or welded).
4): UL Standard UL 497B File No. E175280 DC spark-over voltage is described as break down voltage in the UL report.
5): UL Standard UL 1449 File No. E318314
6):

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)

 

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