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SD250-1 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Base/Gate Driver Transformers
Document 130-1
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 compatible
• 3750 VRMS isolation between windings
• UL approved Class 130°C insulation system
available (UL File E83628)
Coilcraft Designer’s Kit No. P204 contains sam-
ples of 4 standard driver transformers. To order,
please contact Coilcraft or visit http://order.coil-
craft.com to order on-line.
STANDARD VERSION SPECIFICATIONS
DRIVE WINDING
Inductance (Min)1
Leakage inductance (Max)1
DCR
Volt-time product
SD250-1
1.5 mH
4.0 ȐH
0.4ȑ
375 V-Ȑsec
SECONDARY WINDING(S)
Np/Ns (± 3%)
Cap., drive to sec. (Max)
DCR each section (Max)
1 :1
50 pF
.75ȑ
1. Measured at 1 Vrms, 15.75 kHz
2. Operating temperature range –40° C to +85° C.
3. Electrical specifications at 25° C.
SD250-2
1.5 mH
4.0 ȐH
0.4ȑ
375 V-Ȑsec
SD250-3
1.5 mH
4.0 ȐH
0.4ȑ
375 V-Ȑsec
1 : 1.5
50 pF
2.5ȑ
1:1:1
50 pF
.75ȑ
SD250-4
1.5 mH
4.0 ȐH
0.4ȑ
375 V-Ȑsec
1 : 1.5 : 1.5
50 pF
2.5ȑ
SD250-1 and 250-2
1
10
Drive
Sec
5
6
SD250-3 and 250-4
7
1
Drive
5
Sec 1
6
10
Sec 2
9
1.10
27,94
Max.
0.950
24,13
Max.
1.10
27,94
Max.
0.395
10,03
Max.
0.350
8,89
1
0.400
10,16
5
0.62 ± 0.015
15,75 ± 0,38
10
6
0.15 ± 0.030
3,81 ± 0,762
0.032
0,813
Diameter
Ref.
0.40
0.20
10,16
5,08
0.80
20,32
(Pins 7 and 9 omitted on SD250-1 and 250-2)
Specifications subject to change without notice. Document 130-1 Revised 9/14/00