Specification Number
SGE2642-1G
Revision. A (082905)
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright © 2004
Rev. A, 2005-08-29
WWW.Microsemi .COM
6W LMT3811 38.6:1 Transformer
TM ®
DESCRIPTION
This document describes and specifies the electrical and mechanical characteristics of the SGE2642-1G high voltage transformer for CCFL inverter power
supplies. SGE2642-1G is the RoHS compliant and Lead free transformer. For Reliability and Safety Specification, refer to SGE2606-2.
ELECTRICAL CHARACTERISTICS
Inductance (@ 10Khz, 0.1V) DC. Resistance
Items Min Nom Max Items Min Nom Max
L1-2, L2-3 (µH) 150 174 204 RDC1-2, RDC2-3(mΩ) 240 250 260
L4-5 (mH) 830 1012 1230 RDC4-5 (Ω) 390 415 430
Inductance (@ 100KHz, 1V) RDC1-2 / RDC2-3 0.96 1 1.04
LLKG1-2, LLKG2-3 (µH) 10 11 12 Secondary Self Capacitance ( HP4192A 1MHz C meter, 30mVrms)
LLKG4-5 (mH) NA NA NA C4-5 (pF) 2.0 2.5 3.5
Rating
Note: Max output power varies depend on operating condition. Dielectric Voltage Withstand
60Hz, Arc-detect enabled, 5 sec. min. 200µA max. leakage current
Max Open Output Voltage 2000VRMS , 3sec. Secondary to Core 2500VRMS min. ( 60sec)
Max Output Voltage 1100VRMS Primary to Core 1000VRMS min.
Max Output Power 6W Primary to Secondary 1000VRMS min.
WINDING SPECIFICATIONS
Primary Secondary
Pin 1 – 2 Pin 2 – 3 Pin 4 – 5
Winding Sequence 2S – 1F 3S – 2F 5S – 4F
Wire Size & Type #35x2, Single Insulation, 180°C #35x2, Single Insulation, 180°C #46, Triple Insulation, 180°C
Number of Turns 22 22 1700
Winding Method Bifilar
PHYSICAL SPECIFICATIONS & WIRING DIAGRAM
PART MARKING
SGE-G XYZD
SGE2642-1G: MSC PN, XYZ: Datecode (X:YR, YZ=WK), D: Plant Code, A: Rev.#
PACKAGING SPEC AND ORDER INFORMATION
Packaging Order Information
SGE2642-1G ( Standard for TRAY)
SGE2642-1GTR (Tape and Reel )
SGE2642-1GT (with Polymide Tape for TRAY)
TAPE & REEL : Refer to SGE2604-4 specification
S
SG
GE
E2
26
64
42
2-
-1
1G
G