LB-640 Stancor Waldom, LB-640 Datasheet - Page 2

• Manufacturer Part Number: LB-640
• Description: Transformer, Low Profile; 6VA; Sec:Ser 150mA; Pri:115/230V; Sec:Ser 40VCT; PC; 1.56In.
• Manufacturer: Stancor Waldom
• Type: Powerr

Specifications of LB-640

• Brand/series: Low Boy™/LB Series
• Configuration: Toroidal
• Current, Secondary: 0.3/0.15 A
• Dimensions: 1.88"L×1.56"W×0.88"H
• Frequency: 50/60 Hz
• Mounting Type: PCB
• Number Of Outlets: 2
• Phase: 1
• Power, Rating: 6 VA
• Standards: UL
• Termination: Thru-Hole
• Voltage, Primary: 115/230 VAC
• Voltage, Secondary: 20/40 VAC
• Weight: 0.34 lbs.


TECH TIP
Explanation of Low Boy Interconnections
Because of the toroidal effect, two identical coils
are connected in series or parallel, but one of the
coils must be connected in reverse in order to get
correct polarity and voltage.
P R i N T E D C i R C u i T T R A N S F O R M E R S
lIne
lIne
PRImARy
230V
50/60 hz
(Se r i es Con nect i o ns)
b
LB Type
1
2
4
3
.216
.020 X .041
A
5
5
6
7
1
8
“ Lo w Bo y ” L B S e r i e s
Pri. Coil 1
Sec. Coil 1
H
l
o
A
D
mw
1
2
5
6
w
lIne
lIne
PRImARy
115V
50/60 hz
(P a r a l l e l Con n e c ti o n s )
.125 ± .015 dIA.
ml
1
2
4
3
L B Ty p e
l
5
8
7
6
3
4
7
8
Pri. Coil 2
Sec. Coil 2
o
A
D
l