Electrical / Environmental
Operating Temperature Range 
-40°C to +125°C
HM42
Gate Drive Transformers
Ro mpliant
Ambient Temperature, Maximum  +85°C
1500Vdc Isolation between Gate and Drive
Basic Insulation 1500Vrms between Primary and Secondary
Electrical Schematics
Co
HS
Figure 1
Figure 2
Figure 3
Figure 4
Specifications @ 25°C
 
Part 
Number 
HM42-10001LF 
HM42-10002LF 
HM42-20001LF 
HM42-20002LF 
HM42-30001LF 
HM42-30002LF 
HM42-30003LF 
HM42-40001LF 
HM42-40002LF 
HM42-40003LF 
HM42-40004LF 
Turns 
Ratio 
 
1:1:1 
2:1:1 
1:1 
1:1 
1:1:1 
1:1 
1:1:1 
1:1:1 
1:1 
1:1 
2:1:1 
Primary 
Inductance 
(μH Min) 
300 
300 
695 
785 
980 
980 
1500 
3300 
1400 
1200 
1200 
Leakage 
Inductance 
(μH Max) 
2.30 
2.30 
0.50 
0.46 
0.75 
0.75 
0.50 
0.70 
0.50 
0.50 
0.60 
Primary 
DCR 
( W  Max) 
2.00 
2.00 
1.00 
0.60 
0.50 
0.50 
0.62 
1.60 
0.60 
0.50 
0.60 
Secondary 
DCR 
( W  Max)
2.00 
1.00 
1.00 
0.60 
0.50 
0.50 
0.62 
1.60 
0.60 
0.50 
0.30 
Pri-Sec 
Insulation 
1500Vdc 
1500Vdc 
1500Vdc 
1500Vdc 
1500Vac 
1500Vac 
1500Vac 
1500Vdc 
1500Vac 
1500Vac 
1500Vac 
Electrical 
Schematic 
Figure 1 
Figure 1 
Figure 3 
Figure 3 
Figure 1 
Figure 3 
Figure 1 
Figure 2 
Figure 4 
Figure 4 
Figure 2 
Case
Size
10
10
20
20
30
30
30
40
40
40
40
Notes:   (1) Inductance is measured at 100kHz, 0.1Vrms.
  (2) It is recommended that the temperature of the component (ambient plus temperature rise) does not exceed 125°C under worst case
 
     operating conditions.
Packaging
Standard:    Embossed Tape & Reel
Reel:
Diameter:
Capacity:
Case size 10
Case size 20
Case size 30
Case size 40
=
=
=
=
=
13” (330.2mm)
750 Units
1,500 Units
1,000 Units
450 Units
Ordering Information
Model Series
Case Size:
10, 20, 30, 40
HM42 - 10
001
LF
TR
Tape & Reel Packing
Lead-Free
Sequence Code
32
Last Updated: 8 March 2010
MAGNETIC COMPONENTS SELECTOR GUIDE 2009/10 EDITION
We reserve the right to change specifications without prior notice.
www.bitechnologies.com
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