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 (8/20μs) and is available in manyl voltages 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 is used by many service providers and home users in ADSL splitters.

Characteristics

  • Radial taped parts can be mounted using 5mm pitch automatic insertion machines for a total height < 15.5mm (except >2700V parts).
  • Also available in axial taping (it can be mounted flat for use in automatic insertion machines).
  • Can be used in megabit communication equipment without signal attenuation due its capacitance of < 1pF.
  • Superior surge response characteristics due to its Micro-Gap technology.
  • High insulation resistance of > 100MΩ.

Dimensions

Characteristics

Part Number DC Spark-Over
Voltage
(VS)
Insulation
Resistance
(IR)
Electrostatic
Capacitance
1kHz-6V
Surge Current
Capacity
8/20μs
Surge Life
Test
8/20μs
100A
DE37-301L 300V (255 ~ 345) ≥ 100MΩ 100VDC 1pF max 1500A 300times
DE37-351M 350V (280 ~ 420) 250VDC
DE37-401W 400V (340 ~ 480)
DE37-501M 500V (400 ~ 600)
DE37-102M 1000V (800 ~ 1200) 500VDC
DE37-272M 2700V (2160 ~ 3240) 200times
DE37-302M 3000V (2400 ~ 3600)
DE37-362M 3600V (2880 ~ 4320)
DE37-452M 4500V (3600 ~ 5400) 1000VDC
Part Number Withstanding
Voltage
UL Recognized EN Recognized
4) UL 497B 5) UL1449 6) EN60065
EN60950-1
DE37-301L - -
DE37-351M - -
DE37-401W - -
DE37-501M - -
DE37-102M
DE37-272M 1000VAC-1min
1200VAC-3s
○ 1) -
DE37-302M 1500VAC-1min ○ 2) ○ 3)
DE37-362M 1800VAC-3s ○ 2) ○ 3)
DE37-452M 2000VAC-1min ○ 2) ○ 3)
1): Approved if used with a varistor (125VAC: V1mA ≧ 270V, φ ≧ 5mm) connected in series (soldered, crimped, or welded).
2): Approved if used with a varistor (125VAC: V1mA ≧ 270V, φ ≧ 5mm; 250VAC: V1mA ≧ 470V, φ ≧ 5mm) connected in series (soldered, crimped, or welded).
3): Approved if used with a varistor (V1mA ≧ 470V, φ ≧ 5mm) connected in series (soldered, crimped, or welded).
4): UL Standard UL 497B File No. E175280 DC spark-over voltage is described as breakdown 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: 10/700μs, 1.5kV/4kV (25Ω), 5 times.
• AC Induced Test: 600VAC (600Ω), 1s, 5 times.
• AC Cross Test: 230VAC (10 ~ 1000Ω), 15min
(230 VAC is too low for the DE37-401W to react)

 

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