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XF2B Rotary Backlock Connector
(0.3mm-Pitch, Dual Contact)

Rotary Backlock Mechanism with 0.3 mm-Pitch

  • Wide molding wall on the rear bottom of the connector allows greater freedom in board design.
  • Dual contact reduces the number of parts.
  • Gold plated with an applicable FPC thickness of 0.2 mm.
  • Halogen Free (See note.)
    Note: OMRON uses the following standard to determine halogen-free construction: 900 ppm max. for Br, 900 ppm max. for Cl, and 1,500 ppm max. for Br+Cl.
This web page provides an excerpt from a datasheet.
Refer to Datasheetand other applicable documents for more information.
OrderingInformationRatings / CharacteristicsDimensions
Please consult your Omron representative for delivery date.
Pins *1
Model
Pins *1
Model
Quantity per reel *2
17 XF2B-1745-31A 35 XF2B-3545-31A 1,500
21 XF2B-2145-31A 39 XF2B-3945-31A
23 XF2B-2345-31A 41 XF2B-4145-31A
25 XF2B-2545-31A 45 XF2B-4545-31A
27 XF2B-2745-31A 51 XF2B-5145-31A
31 XF2B-3145-31A 61 XF2B-6155-31A *3
33 XF2B-3345-31A - -
*1 Please consult your OMRON representative for available pin count.
*2 Please order by integer multiple of the quantity per reel.
*3 Upper contact.
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OrderingInformationRatings / CharacteristicsDimensions
Rated current 0.2A AC/DC
Rated voltage 50V AC/DC
Contact resistance 50mΩ max. (at 20 mV DC max., 100 mA max.)
Insulation resistance 100MΩ min. (at 250V DC)
Withstand voltage 250V AC for 1 min.
(leakage current: 1 mA max.)
Insertion tolerance 20 times
Ambient operating
temperature		 -30 to +85ºC
(with no icing or condensation)
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OrderingInformationRatings / CharacteristicsDimensions
XF2B- 5-31A
XF2B:Dementions1
Table of Dimensions
Pins *1
Model
A
B
C
D
17 XF2B-1745-31A 4.2 4.8 5.5 7.0
21 XF2B-2145-31A 5.4 6.0 6.7 8.2
23 XF2B-2345-31A 6.0 6.6 7.3 8.8
25 XF2B-2545-31A 6.6 7.2 7.9 9.4
27 XF2B-2745-31A 7.2 7.8 8.5 10.0
31 XF2B-3145-31A 8.4 9.0 9.7 11.2
33 XF2B-3345-31A 9.0 9.6 10.3 11.8
35 XF2B-3545-31A 9.6 10.2 10.9 12.4
39 XF2B-3945-31A 10.8 11.4 12.1 13.6
41 XF2B-4145-31A 11.4 12.0 12.7 14.2
45 XF2B-4545-31A 12.6 13.2 13.9 15.4
51 XF2B-5145-31A 14.4 15.0 15.7 17.2
61 XF2B-6155-31A *3 17.4 18.0 18.7 20.2
*1 Please consult your OMRON representative for available pin count.
*3 Upper contact.
PCB Mating Dimensions (Top View)
XF2B:Dimention2
Applicable FPC Dimensions
XF2B:Dimention2
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