SRR4028-1R8Y Bourns Inc., SRR4028-1R8Y Datasheet - Page 2

• Manufacturer Part Number: SRR4028-1R8Y
• Description: INDUCTOR POWER 1.8UH 2.7A 4028
• Manufacturer: Bourns Inc.
• Series: SRR4028r
• Type: Ferrite Corer

Specifications of SRR4028-1R8Y

• Inductance: 1.8µH
• Tolerance: ±30%
• Current: 2.7A
• Current - Saturation: 2.2A
• Shielding: Shielded
• Dc Resistance (dcr): 25 mOhm Max
• Q @ Freq: 9.18 @ 7.96MHz
• Self Resonant Freq: 146MHz
• Package / Case: 0.189" L x 0.189" W x 0.110" H (4.80mm x 4.80mm x 2.80mm)
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 125°C
• Frequency - Test: 100kHz
• Material - Core: Ferrite
• Applications: Power Supplies
• Product: Inductors
• Test Frequency: 7.96 MHz
• Maximum Dc Current: 2.7 Amps
• Maximum Dc Resistance: 25 mOhms
• Self Resonant Frequency: 146 MHz
• Q Minimum: 9.18
• Dimensions: 4.8 mm W x 4.8 mm L x 1.6 mm H
• Operating Temperature Range: - 40 C to + 125 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Temperature Rise: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: SRR4028-1R8Y

08/07
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Packaging Specifications
Inductance vs. Current
SRR4028 Series - Shielded SMD Power Inductors
Surface Mount Chip Inductor Capability Matrix
10 2
10 1
10 0
7
5
3
2
7
5
3
2
7
5
3
2
7
10 1
END
2
(7.00)
178.0
DIA.
561
151
330
100
4R7
1R2
(.827 ± .032)
21.0 ± 0.8
3
NO COMPONENT
(7.87)
200
5
(.511)
13.0
7 10 2
DIA.
(.079 ± .020)
2.0 ± 0.5
DC Current (mA)
2
3
5
7
USER DIRECTION OF FEED
6R8
10 3
QTY: 500 PCS. PER REEL
(.551 + 0)
14.0 + 0
(.511)
(.650)
13.0
DIA.
16.5
(.315)
8.0
2
COMPONENTS
6R8
3
5
(1.969 - 0)
50.0 - 0
7
10 4
6R8
(.157)
4.0
6R8
Electrical Schematic
DIMENSIONS:
NO COMPONENT
(15.75)
400
START
LCR METER
(INCHES)
MM