DTPA1234
www.dtmagnetics.com sales@dtmagnetics.com engineering@dtmagnetics.com
DT Magnetics International, Inc.
140 Crosby Road
Dover, NH 03820 Local Sales Rep Label
Phone (603) 742-4375
Fax (603) 742-
9165
Date code 0229
60 Watt Flyback Transformer
Electrical Characteristics
Parameter Min Typ Max Units Conditions
Lp Primary Inductance 117 130 143 uH 1-3 1v @ 132khz
Llkg Leakage Inductance 3 uH 1-3 1v @ 132khz short 5,6,8,9,11,12
Fr Resonant Frequency 1.3 Mhz 1-3 1v @ 132khz
Rp DC Resistance Primary .085 Ohms 1-3
Rb DC Resistance Bias .085 Ohms 5-6
Rs DC Resistance Secondary .021 Ohms 7-8
Rs DC Resistance Secondary .021 Ohms 9-10
Rs DC Resistance Secondary .021 Ohms 11-12
Performance Specifications
Parameter Min Typ Max Units Conditions
Po Recommended Output Power 35 60 70 Watts Total Output
Vo Output Voltage 12v 15v,15v,15v 48v Volts Parallel / Individual / Series
Absolute Maximum Ratings
Parameter Min Max Units Conditions
Top Temperature Range -40 +130 DegC
Tr Temperature rise 50 DegC @ Rated Power
DWV Isolation Voltage 3000 Vrms 1,3,5,6-7,8,9,10,11,12
DWV Isolation Voltage 1500 Vrms Primary-bias
DWV Isolation Voltage 1500 Vrms Sec-sec
DWV Isolation Voltage 1500 Vrms Wind-core
• Power Integrations TOPSwitch-GX
Family Transformer
• Designed for TOP242-243 Chip Sets*
• Universal Input 85-265 Volts
• Low Leakage Inductance
• Designed to meet IEC950
• Compact, Cost Efficient Design
• 15v, 15v, 15v Secondaries
• Custom modifications available
(contact DTM engineering)
PRI
BIAS
15v
15v
15v
3
1
12
11
10
9
6
58
7
Specifications subject to change
without notice.
Turns Ratio available on request.
* 15 Watt design uses Top243P
DTPA1234
www.dtmagnetics.com sales@dtmagnetics.com engineering@dtmagnetics.com
DT Magnetics International, Inc.
140 Crosby Road
Dover, NH 03820 Local Sales Rep Label
Phone (603) 742-4375
Fax (603) 742-
9165
Date code 0229
Package Specifications Typical Voltage Combinations
Recommended
Hole Dia. .041
78910111314 12
1 2 3 4 5 6
1.05" Max
1.15" Max
1.20" Max
1.000"
.300" .150"
Suggested Pad Layout
Measurements are in inches
Specifications subject to change without notice
adjusting the feedback voltage divider.