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89
Flush-Mount Connectors
E
u
ro
s
ty
le
1
Catalog 1308389
Dimensions are in millimeters
Dimensions are shown for
USA: 1-800-522-6752
South America: 55-11-2103-6000
Revised 6-07
and inches unless otherwise
reference purposes only.
Canada: 1-905-470-4425
Hong Kong: 852-2735-1628
specified.
Specifications subject
Mexico: 01-800-733-8926
Japan: 81-44-844-8013
www.tycoelectronics.com
to change.
C. America: 52-55-1106-0803
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
5 mm Flush-Mount Plug-In
Connectors with Cage Clamp
Series B51C4
(Mate with Series B71N4
Pin Headers)
Material & Finish
Housing Material—Polyamide,
Type 6/6
Flammability—UL94V-0
Color—Black
Wire Entry Contact and Spring—
Phosphor bronze, tin plated
Wire Cage—Hardened steel, zinc
plated, yellow chromate treated
Screw—M2.5 x 6.2mm, steel, zinc
plated, clear chromate treated
Mechanical Properties
Pitch (terminal spacing)—5mm
Wire Strip Length—6.4mm
Recommended Tightening
Torque— 0.5Nm [4.4 in-lbs]
Electrical Properties
Maximum Current—15A
Operating Voltage—300V (5mm)
Wire Range—12-30 AWG
Dielectric Withstand—2200V (5mm)
Environmental Properties
Operating Temperature Range—
-60C to +105C [-76°F to +221°F]
LR28387
E63810
No. of
5mm Universal
Positions
Part Number
Catalog Number
2
1437426-1
B51C4U02T
3
1437426-3
B51C4U03T
4
1437426-9
B51C4U04T
5
1-1437426-3
B51C4U05T
6
1-1437426-6
B51C4U06T
7
2-1437426-0
B51C4U07T
8
2-1437426-5
B51C4U08T
9
2-1437426-8
B51C4U09T
10
3-1437426-2
B51C4U10T
11
3-1437426-6
B51C4U11T
12
3-1437426-9
B51C4U12T
13
4-1437426-6
B51C4U13T
14
4-1437426-9
B51C4U14T
15
5-1437426-1
B51C4U15T
16
5-1437426-3
B51C4U16T
17
—
B51C4U17T
18
5-1437426-6
B51C4U18T
19
—
B51C4U19T
20
5-1437426-7
B51C4U20T
21
—
B51C4U21T
22
5-1437426-8
B51C4U22T
23
—
B51C4U23T
24
5-1437426-9
B51C4U24T
5 mm Pitch
B51C4U (universal mounting)
A DIM
5 mm: A = N x 5
N = # of Poles
A
16.61
.654
2.5
.098
0.58
.023
5
.197
5
.197
13.54
.533
3.56
.140
9.78
.385