Specification Number
SGE2668-1G
Revision. A (051106)
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright © 2004
Rev. A, 2006-05-11
WWW.Microsemi .COM
2.4W LMT2608 80.0:1 Transformer
TM ®
DESCRIPTION
This document describes and specifies the electrical and mechanical characteristics of the SGE2668-1G high voltage transformer for CCFL inverter power
supplies. SGE2668-1G is the RoHS compliant and Lead free transformer. For Reliability and Safety Specification, refer to SGE2606-4.
ELECTRICAL CHARACTERISTICS
Inductance (@ 10Khz, 0.1V) DC. Resistance
Items Min Nom Max Items Min Nom Max
L1-2,L2-3 (µH) 22 29 37 RDC1-2, RDC2-3(mΩ) 100 118 128
L4-5 (mH) 300 433 547 RDC4-5 (Ω) 470 493 560
Inductance (@ 100KHz, 1V), with Short pin4-5 R1-2/R2-3 0.96 1 1.04
LLKG1-2, LLKG2-3 (µH) 6.2 6.7 7.4 Quality Factor Q1-3 30 50
LLKG4-5 (mH) NA NA NA Quality Factor Q4-5 NA NA NA
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 1500VRMS , 3sec. Secondary to Core 1500VRMS min. ( 1min)
Max Output Voltage 1000VRMS Primary to Core 750VRMS min.
Max Output Power 2.4W Primary to Secondary 1000VRMS min.
WINDING SPECIFICATIONS
Primary Secondary
Pin 1 – 2 Pin 2 – 3 Pin 4 – 5
Winding Sequence 1S – 2F 2S – 3F 5S – 4F
Wire Size & Type 0.18φ, Single Insulation, 180°C 0.18φ, Single Insulation, 180°C 0.03φ, Triple Insulation, 180°C
Number of Turns 13 13 1600
Winding Method Bifilar
PHYSICAL SPECIFICATIONS & WIRING DIAGRAM
PART MARKING
SGE-G XYZD
SGE2668-1G: MSC PN,
PYMDD A: P: Plant Code, Y=Year, M:Month, DD:date A: Rev.#
PACKAGING SPEC AND ORDER INFORMATION
Packaging Order Information
SGE2668-1GTR (Tape and Reel )
TAPE & REEL : Refer to SGE2604-4 specification
S
SG
GE
E2
26
66
68
8-
-1
1G
G