Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600
595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified
RENCO ELECTRONICS INC.
SURFACE MOUNTS
RL-7550-3
HIGH CURRENT
• Surface mount inductor with high current rating
• Extremely low DCR to minimize power loss
• Ideal for use in a variety of high performance DC-DC
converter inductor applications
FEATURES & APPLICATIONSDESCRIPTION
• High Current SMD Power Inductor
ENVIRONMENTAL DATA
• Storage temperature range:
-55°C to +130°C
• Operating temperature range:
-40°C to +130°C
PACKAGING INFORMATION
• Packaging information: pg. 490
SMD POWER INDUCTORS
Verify operation with sample in actual circuit. Order samples at www.rencousa.com.
TOP VIEW SIDE VIEW RECOMMENDED LAND PATTERN
PART NUMBER A (MAX.) B (MAX.) C D (MAX.) E (MAX.) F (REF.)
RL-7550-3 0.350 (8.89) 0.240 (6.10) 0.230 (5.84) 0.147 (3.73) 0.196 (5.00) 0.080 (1.91)
MECHANICAL DIMENSIONS
U.S. Standard (mm)
PART NUMBER PART WEIGHT
RL-7550-3 0.3g (0.01oz)
G (REF.) H (REF.)
0.200 (5.08) 0.160 (4.06)
A
B
C
DE
F
G
H
ST
FN
SCHEMATIC
SURFACE MOUNTS
Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600
595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified
RENCO ELECTRONICS INC.
Renco Part No.
RL-7550-3
Inductance
(µH)
DCR Max.
(Ohms)
Isat
(A)
Irms
(A)
SRF (MHz)
Typ.
RL-7550-3-R56M 0.56 ± 20% 0.010 7.70 6.00 200.0
RL-7550-3-1R2M 1.20 ± 20% 0.017 5.30 4.40 140.0
RL-7550-3-2R2M 2.20 ± 20% 0.035 3.50 3.10 100.0
RL-7550-3-4R7M 4.70 ± 20% 0.054 2.60 2.20 50.0
RL-7550-3-100M 10.00 ± 20% 0.111 1.90 1.50 40.0
RL-7550-3-150M 15.00 ± 20% 0.170 1.50 1.20 30.0
RL-7550-3-220M 22.00 ± 20% 0.250 1.20 1.00 25.0
RL-7550-3-330M 33.00 ± 20% 0.350 0.99 0.82 20.0
RL-7550-3-470M 47.00 ± 20% 0.470 0.87 0.72 15.0
RL-7550-3
NOTES:
1. Isat - DC CURRENT THAT WILL CAUSE INDUCTANCE TO DROP BY 5%
2. Irms - CURRENT THAT CAUSES THE TEMPERATURE TO RISE APPROX. 40ºC ABOVE AMBIENT OF 25ºC
3. ELECTRICAL SPECIFICATIONS MEASURED AT 25ºC
4. INDUCTANCE TESTED AT 100 kHz, 0.25 Vrms
