REVISIONS
REV.
01
FIRST RELEASE
DESCRIPTION
ECN NO.
N/A
DATE
11/21/07
PAGE 4 IS FOR INTERNAL ONLY
PART NUMBER
835-00846
835-00846F
PART DESCRIPTION
Standard version, with Lead(Pb)
RoHS compliant per EU Directive 2002/95/EC(without exemption of solder content)
UNLESS OTHERWISE
SPECIFIED, DIMENSIONS
ARE IN INCH/mm.
TITLE
TRANSFORMER, FLYBACK, SMT, 8 PIN
APPROVALS
DRAWN BY
PROJ. ENG
WARNING !
DATE
11/21/07
11/21/07
11/21/07
11/21/07
SCALE
E & E Magnetic Products Ltd.
DRAWING NO./MODEL
REV
ALL SHEETS OF THIS DOCUMENT ARE
CONTROLLED DOCUMENTATION AND
TOLERANCE ARE:
ARE NOT TO BE RELEASED OUTSIDE
INCH
mm
ANGLE
OF E&E OR ITS SUB-CONTRACTORS
.XXX ± .005 .XX ± .13 X.X ± 0.3
WITHOUTAUTHORIZATION.
.XX ± .02
.X ± .5
X. ± 1
W.P. CHENG
W.P. CHENG
V. TSUI
C.M. TSUI
APPROVED BY
Q.A.
835-00846
DO NOT SCALE
PAGE
01
1
OF
4
.295
7.50
.080
2.03
6
.500
12.70 MAX
1
4
.098
2.50
.620
15.75
.050
1.27
.600
15.24 MAX
8
EE
5-0846
(DATE)
5
Recommended
Pad Layout
.024± .004 x8
0.60±0.10
.004-.020
0.10-0.51
.450 MAX
11.43
REFERENCE OR
GAUGE PLANE
.098± .010
2.50±0.25
.295± .010
7.50±0.25
1. Dimensions are specified in
inches
with higher precedence in inches.
mm
2. Unless otherwise specified, all tolerances are ±
.010
.
0.25
3. Coplanarity:
.004
max.
0.10
MECHANICAL OUTLINE
E & E Magnetic Products Ltd.
DRAWING NO./MODEL
REV
4. "(DATE)" includes at least the manufacturing date code(in YYWW format) plus two character
country code.
5. Dimensions are to be measured in accordance with JEDEC standard 95-1.
6. For RoHS compliant version, 835-00846F, the part will be marked with “5-0846F”, instead of “5-
0846”.
SCALE
835-00846
PAGE
01
2
OF
DO NOT SCALE
4
ELECTRICAL SPECIFICATION @25
°
C:
PARAMETERS
Turns Ratio(3-4) : (6/5-7/8)
Turns Ratio(3-4) : (2-1)
Polarity
Ls(3-4) @250kHz, 0.1Vrms
Ls(3-4) @250kHz, 0.1Vrms, 0.65Adc
LL(3-4), short 5-6-7-8-2-1 @250kHz, 0.1Vrms
DCR(3-4), for reference only
DCR(2-1), for reference only
DCR(6-8) or DCR(5-7), for reference only
Hipot(3,4,2,1):(6,5,8,7)
UNIT
-
-
-
uH
uH
uH
mΩ
mΩ
mΩ
Vrms
LIMITS
1 : 0.262 ± 2%
1 : 0.667 ± 2%
Per Schematic
155 ± 10%
139.5 Min
3.60 Max
414 Max
822 Max
60 Max
1500 Min
2
Bias
1
3
Pri
4
6
5
Sec
7
8
SCHEMATIC
7. Operating temperature: -40°C to +85°C. The part temperature (ambient temperature +
temperature rise) should not exceed the upper limit of the operating temperature under worst
case operating conditions. Circuit design, component placement, PWB trace size and
thickness, airflow and other cooling provisions, all affect the part temperature. Part temperature
should be verified in the end application.
8. The part is designed to meet operational insulation only.
9. Output of the secondary is with the windings connected in parallel.
SCALE
E & E Magnetic Products Ltd.
DRAWING NO./MODEL
REV
835-00846
DO NOT SCALE
PAGE
01
3
OF
4
京公网安备 11010802033920号
EEWORLD
