6235COUPLED InDUCtOrs
Coupled Inductors for Critical Applications
Tight coupling (k ≥ 0.97) makes the ST512PJD series
of coupled inductors ideal for use in a variety of circuits
including flyback, multi-output buck and SEPIC.
These coupled miniature shielded inductors are 3.5 mm
high and 6.0 mm square.They provide high inductance,
high efficiency and excellent current handling in low
cost part.
They can be used as two single inductors connected
in series or parallel, as a common mode choke or as a
1 : 1 transformer.
+
+
D
C
V
L1
L2
OUT
C
V
IN
–
SW
–
Typical Flyback Converter
+
OUT
D
V
C
AUX
L2
–
0.236 0.003
6,0 0,08
Dot indicates pin 1
+
+
L1
1
2
4
3
V
OUT
V
C
D
IN
SW
0.236 0.003
6,0 0,08
–
–
Typical Buck Converter with auxiliary output
XXXX
D
+
+
Dash
number
Internal
code
L1
C1
V
Q
L2
C
OUT
V
IN
0.138
max
3,5
Recommended
Laꢂd Paꢁꢁeꢀꢂ
suggeꢃꢁed
–
–
Land Pattern
Typical SEPIC schematic
Coꢀe maꢁeꢀial Ferrite
Weighꢁ 420 – 480 mg
1
4
45°
typ
0.047
1,20
teꢀmiꢂaꢁioꢂꢃ RoHS compliant, halogen free silver-palladium-plati-
num-glass frit. Other terminations available at additional cost.
0.167 0.079
4,25 2,00
0.260
6,60
Ambieꢂꢁ ꢁempeꢀaꢁuꢀe –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
3
2
sꢁoꢀage ꢁempeꢀaꢁuꢀe Component: –55°C to +125°C.
Tape and reel packaging: –55°C to +80°C
0.079
2,00
0.079
2,00
Wiꢂdiꢂg ꢁo wiꢂdiꢂg iꢃolaꢁioꢂ 100 V
0.167
4,25
0.260
6,60
reꢃiꢃꢁaꢂce ꢁo ꢃoldeꢀiꢂg heaꢁ Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moiꢃꢁuꢀe seꢂꢃiꢁiviꢁy Level (MsL) 1 (unlimited floor life at <30°C /
85% relative humidity)
1
2
4
Packagiꢂg 750 per 7″ reel Plastic tape: 12 mm wide,
inches
mm
Dimensions are in
L1
L2
0.32 mm thick, 8 mm pocket spacing, 3.1 mm pocket depth
recommeꢂded pick aꢂd place ꢂozzle OD: 5 mm; ID: ≤ 2.5 mm
3
Document ST833-1 Revised 11/07/12
®
This product may not be used in medical or high
Fax 847-639-1508
Email cps@coilcraft.com Specifications subject to change without notice.
www.coilcraft-cps.com Please check our web site for latest information.
risk applications without prior Coilcraft approval.
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Cary, IL 60013
Phone 800-981-0363
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