SD250-1L Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Base/Gate Driver Transformers

Document 130
Base/Gate Driver Transformers
• Lower cost than toroidal equivalents
• Frequency range of 10 - 250 kHz and up
• Industry standard pin centers
• VDE, IEC, UL, CSA compliant
• 3750 Vrms isolation between windings
• Constructed with UL approved Class 130°C insulation
system (UL File E83628)
Turns ratio (pri : sec)
Primary winding
Inductance (min)¹
Leakage inductance (max)¹
DCR
Volt-time product
Secondary winding(s)
Capacitance, pri to sec (max)
DCR, each section (max)
SD250-1L
1:1
1.5 mH
4.0 µH
0.4 ⏲
375 V-µsec
50 pF
0.75 ⏲
1. Measured at 1 Vrms, 15.75 kHz.
2. Operating temperature range –40°C to +85°C.
3. Electrical specifications at 25°C.
SD250-2L
1 : 1.5
1.5 mH
4.0 µH
0.4 ⏲
375 V-µsec
50 pF
2.5 ⏲
0.950 _max
24,13
1.10
27,94
max
0.395 _max
10,03
0.15 ±0.030
3,81 ±0,762
0.032
0,813
dia
ref
Weight:
15.6 – 16.8 g
Termination: Tin-silver over tin over copper
Packaging: 49 per tray
SD250-3L
1:1:1
1.5 mH
4.0 µH
0.4 ⏲
375 V-µsec
50 pF
0.75 ⏲
1
10 9
7
1.10
27,94
max
SD250-4L
1 : 1.5 : 1.5
1.5 mH
4.0 µH
0.4 ⏲
375 V-µsec
50 pF
2.5 ⏲
SD250-1 and 250-2
1
10
Pri
(drive)
Sec
5
6
SD250-3 and 250-4
7
1
Pri
(drive)
5
Sec 1
6
10
Sec 2
9
Recommended
board layout
0.75
5
19,05
5
1
0.62 ±0.015
15,75 ±0,38
67
9 10
6
0.20
0.40
5,08
10,16
01.,01424dia
0.80
20,32
Pins 7 and 9 are not present
on SD250-1 and SD250-2
Specifications subject to change without notice.
Please check our website for latest information.
Document 130 Revised 10/26/06
© Coilcraft, Inc. 2006