FA55

The FA55 responds very quickly to induced lightning and electrostatic discharges.
Capable of many types of AC withstand tests.
Ideal for protecting power supplies from power-line surge voltage.

Features

•Small size (φ5.5mm Length 7mm).
•Alows performing the AC withstanding voltage test.
•Quick response for surge voltage and low limiting voltage.
•Small capacitance and excellent insulation resistance.
•Stable for repeated discharge tests and for many environmental fluctuations.
•Axial and Radial taping available.
•No polarity.
•No dark effect.
•The FA55 series surge absorber combined in series with a varistor is used for surge protection in many types of power supplies.

Dimensions

 

 

 

Note 1) Largest possible max diameter.
   2) Largest possible distance of either edge of glass or from stud.


Characteristics

Part number Impulse sparkover
voltage
1.2/50μsec.
Insuration resistance
(IR)
Electrostatic capacitance
1kHz-6V max.
Surge current capacity
8/20μsec
Surge life test
8/20μsec.
100A
FA55-272 4,500V max. 100MΩmin. DC 500V 1pF max. 2,500A 300times
FA55-302 5,000V max.
FA55-362 5,000V max.
FA55-402 6,000V max.
Part number AC Withstanding Voltage DC sparkover voltage
Vs
*Reference value
UL recognized EN recognized
3)
UL 1449
4)
EN60065
EN60950-1
FA55-272 AC1,000V-1min. 2,700V(2,160~3,240) ○ 1)  
AC1,200V-3sec.
FA55-302 AC1,500V-1min. 3,000V(2,400~3,600) ○ 1) ○ 2)
FA55-362 AC1,800V-3sec. 3,600V(2,880~4,320) ○ 1) ○ 2)
FA55-402 AC2,000V-1min. 4,000V(3,200~4,800) ○ 1) ○ 2)

1):Approved if used with a varistor (125VAC : V1mA≧270V, D≧φ10mm, 250VAC : V1mA≧470V, D≧φ10mm), electrically connected in series (soldered, crimped, or welded).
2):Approved if used with a varistor (AC250V : V1mA≧470V, D≧φ5mm), electrically connected in series (soldered, crimped, or welded).
3):UL Standard UL 1449 File No.E318314
4):FA55 has received recognition to EN60065, EN60950-1 through TÜV. Report No. J50189760

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