Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
TM00107
T1-15
ELECTRICAL SPECIFICATIONS AT 25 C
SCHEMATIC
Operates as a high frequency pulse transformer or
as a high frequency analog transformer in various
telecom circuits requiring very high voltage step-up
ratio
Interwinding Electrostatic Shield provides low
capacitance and high EMI suppression
Electrical equivalents: 2664F, 2741P2, 2779A
HIGH FREQUENCY MAGNETICS
Specialty Surface Mount Shielded Transformer
2779A
Operating temperature range: -40 C to +85
C
Meets IEC 695, 2-2 flammability requirements
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
8
3
CT
4
7
6
1 : 25
1
CT
5
2
r
e
b
m
u
N
t
r
a
P
s
n
r
u
T
l
a
n
i
m
o
N
o
i
t
a
R
%
1
e
c
n
a
t
c
u
d
n
I
2
n
i
m
H
R
C
D
x
a
m
e
g
a
k
a
e
L
e
c
n
a
t
c
u
d
n
I
2
x
a
m
H
g
n
i
d
n
i
w
r
e
t
n
I
e
c
n
a
t
i
c
a
p
a
C
6
,
5
,
4
x
a
m
F
p
m
u
m
i
n
i
M
g
n
i
d
n
i
w
r
e
t
n
I
n
w
o
d
k
a
e
r
B
e
g
a
t
l
o
V
s
m
r
V
)
1
-
2
(
:
)
7
-
3
(
1
)
5
-
2
(
)
1
-
2
(
)
7
-
4
(
)
8
-
3
(
3
)
7
-
3
(
1
A
9
7
7
2
T
C
5
2
:
T
C
1
0
0
3
2
9
.
1
0
2
.
0
5
0
0
5
8
o
t
4
t
c
e
n
n
o
c
.
1
c
a
V
2
0
.
0
,
z
H
k
0
0
1
t
a
d
e
r
u
s
a
e
m
.
2
7
o
t
2
&
8
o
t
4
t
c
e
n
n
o
c
.
3
d
e
d
n
u
o
r
g
)
1
-
2
(
h
t
i
w
6
o
t
)
8
-
3
(
.
4
d
e
d
n
u
o
r
g
)
1
-
2
(
h
t
i
w
6
o
t
)
7
-
4
(
.
5
8
o
t
d
e
t
c
e
n
n
o
c
4
d
n
a
d
e
d
n
u
o
r
g
6
h
t
i
w
)
1
-
2
(
o
t
)
7
-
3
(
.
6
CORPORATE
Bel Fuse Inc.
198 Van Vorst Street
Jersey City, NJ 07302
Tel
201-432-0463
Fax
201-432-9542
www.belfuse.com
FAR EAST
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel
852-2328-5515
Fax 852-2352-3706
www.belfuse.com
EUROPE
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel
44-1772-556601
Fax 44-1772-888366
www.belfuse.com
2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
TM00107
T1-16
MECHANICAL
2779A
7
8
6
5
1
2
3
4
TERMINAL 1 IDENTIFIER
0.350
(8.89)
MAX
0.004
0.100
0.490
(12.45)
MAX
0.430
(10.92)
MAX
8 EDGES
0.500
(12.7)
MAX
0.256 (6.50)
0.160 (4.06)
0.050 (1.27)
0.100 (2.54)
1
2
3
4
7
8
6
5
1
2
3
4
HIGH FREQUENCY MAGNETICS
Specialty Surface Mount Shielded Transformer
Unless otherwise specified, dimensions are nominal and in inches (millimeters).
PDF 
ZIP