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TM
Specification Number
SGE2689-1G
Revision. A (090605)
®
4W LMT2110 42.1:1 Transformer
DESCRIPTION
This document describes and specifies the electrical and mechanical characteristics of the SGE2689-1G high voltage transformer for CCFL inverter power
supplies. SGE2689-1G is the RoHS compliant and Lead free transformer. For Reliability and Safety Specification, refer to SGE2606-3.
ELECTRICAL CHARACTERISTICS
Items
L2-3, L3-4 (µH)
L6-7 (mH)
Min
157
1024
Inductance (@ 10Khz, 0.1V)
Nom
Max
185 214
1213
1396
LLKG2-3, LLKG3-4 (µH)
Inductance (@ 100KHz, 1V)
10 11
12
LLKG6-7 (mH)
NA
NA
NA
Rating
Note: Max output power varies depend on operating condition.
Max Open Output Voltage
Max Output Voltage
Max Output Power
1500VRMS , 3sec.
1000VRMS
4W
Items
DC. Resistance
Min
Nom
Max
RDC2-3, RDC3-4(m)
RDC6-7 ()
200
350
215 230
361 390
RDC2-3 / RDC3-4
0.96
1 1.04
Secondary Self Capacitance ( HP4192A 1MHz C meter, 30mVrms)
C6-7 (pF)
2.0 2.5 3.5
Dielectric Voltage Withstand
60Hz, Arc-detect enabled, 5 sec. min. 200µA max. leakage current
Secondary to Core
Primary to Core
Primary to Secondary
2000VRMS min. ( 60sec)
1000VRMS min.
1000VRMS min.
WINDING SPECIFICATIONS
Winding Sequence
Wire Size & Type
Number of Turns
Winding Method
Primary
Pin 2 – 3
Pin 3 – 4
2S – 3F
3S – 4F
#33, Single Insulation, 180°C
#33, Single Insulation, 180°C
19 19
Bifilar
Secondary
Pin 6 – 7
6S – 7F
#46, Triple Insulation, 180°C
1600
PHYSICAL SPECIFICATIONS & WIRING DIAGRAM
PART MARKING
SGE…………-…G XYZD A – SGE2689-1G: MSC PN, XYZ: Datecode (X:YR, YZ=WK), D: Plant Code, A: Rev.#
PACKAGING SPEC AND ORDER INFORMATION
Packaging Order Information – SGE2689-1G ( Standard for TRAY)
SGE2689-1GTR (Tape and Reel )
TAPE & REEL : Refer to SGE2604-3 specification
Copyright © 2004
Rev. A, 2005-09-06
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1

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Specification Number
SGE2689-1G
Revision. A (090605)
TM
®
4W LMT2110 42.1:1 Transformer
NOTES
PRODUCTION DATA – Information contained in this document is proprietary to
Microsemi and is current as of publication date. This document may not be modified in
any way without the express written consent of Microsemi. Product processing does not
necessarily include testing of all parameters. Microsemi reserves the right to change the
configuration and performance of the product and to discontinue product at any time.
Copyright © 2004
Rev. A, 2005-09-06
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2