Fujitsu FTR-B3SA4.5Z PCB Mount Relay FTR-B3SA4.5Z Data Sheet

2

* Minimum switching loads mentioned above are reference values. Please perform the confirmation test with actual

load before production since reference values may vary according to switching frequencies, environmental conditions

and expected reliability levels.

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Item

Standard type

Latching type

FTR-B3 ( ) A

FTR-B3 ( ) B

Contact Data Configuration

2 form C 

Construction

Bifurcated contacts (cross-bar)

Material

Gold overlay silver nickel / Gold overlay silver 

palladium

Resistance (initial)

Max. 75 mΩ at 1 A, 6 VDC

Contact rating 

(resistive)

30VDC, 1A / 125VAC, 0.3A

Max. carrying current

2A

Max. switching voltage

250 VAC / 220VDC

Max. switching power

62.5VA / 30W

Min. switching load *

0.01mA, 10mVDC

Life

Mechanical

Min. 50 x 10

6

 operations 

(at 3Hz)

Min. 20 x 10

6

 operations 

(at 3Hz)

Electrical

Min. 100 x 10

3

 operations at 1A 30VDC (at 0.5Hz)

Min. 100 x 10

3

 operations at 0.3A 125VAC (at 0.5Hz)

Coil Data

Rated power

140mW - 230mW

100mW - 120mW

Operate power

80mW - 130mW

57mW - 68mW

Operating temperature range

-40 °C to +85 °C (no frost) 

Timing Data

Operate (at nominal voltage)

Max. 3 ms (without bounce)

Release (at nominal voltage)

Max. 3 ms (without bounce)

Insulation

Resistance (initial)

Min. 1,000MΩ at 500VDC

Dielectric strength

Open contacts

1,000VAC (50/60Hz) 1min 

Contacts to coil

1,500VAC (50/60Hz) 1min

Adjacent contacts

1,000VAC (50/60Hz) 1min.

Surge strength

Coil to contacts

2,500V,  2 x 10µs standard wave

Clearance

Adjacent contacts

1.0 mm

Open contacts

0.28 mm

Coil and contacts

1.0 mm

Creepage

Adjacent contacts

1.0 mm

Open contacts

0.28 mm

Coil and contacts

1.60 mm

Other

Vibration resistance

Misoperation

10 to 55Hz double amplitude 3.3mm

Endurance

10 to 55Hz double amplitude 5.0mm

Shock

Misoperation

750m/s²

Endurance

1,000m/s²

Weight

Approximately 0.8 g