SRP1235-1R2M Bourns Inc., SRP1235-1R2M Datasheet - Page 2

• Manufacturer Part Number: SRP1235-1R2M
• Description: INDUCTOR POWER 1.2UH 21A SMD
• Manufacturer: Bourns Inc.
• Series: SRP1235r
• Type: Iron Corer

Specifications of SRP1235-1R2M

• Inductance: 1.2µH
• Current: 21A
• Current - Saturation: 29A
• Shielding: Shielded
• Dc Resistance (dcr): 4.5 mOhm Max
• Self Resonant Freq: 37MHz
• Package / Case: 0.547" L x 0.547" W x 0.146" H (13.90mm x 13.90mm x 3.70mm)
• Mounting Type: Surface Mount
• Operating Temperature: -55°C ~ 150°C
• Frequency - Test: 100kHz
• Material - Core: Iron
• Applications: General Purpose
• Product: Shielded Power Inductors
• Test Frequency: 100 MHz
• Tolerance: 20 %
• Maximum Dc Current: 21 Amps
• Maximum Dc Resistance: 4.5 mOhms
• Self Resonant Frequency: 37 MHz
• Dimensions: 13.9 mm W x 13.9 mm L x 3.7 mm H
• Operating Temperature Range: - 55 C to + 150 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Q @ Freq: -
• Current - Temperature Rise: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

L vs. I Charts
1.50
1.35
1.20
1.05
0.90
0.75
0.60
0.45
0.30
0.15
0.60
0.54
0.46
0.43
0.36
0.30
0.24
0.16
0.13
0.06
0.96
0.72
0.48
0.24
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
1.2
0
0
0
0
0
0
0
0
SRP1235 Series - Shielded Power Inductors
0
0 4
4
5
8 12 16 20 24 28 32 36 40 44 48 52 56
4
10
8
8
12
15
SRP1235-1R0M
SRP1235-1R8M
SRP1235-R33M
SRP1235-R10M
SRP1235-R67M
8
DC Current (A)
DC Current (A)
DC Current (A)
DC Current (A)
16
16
DC Current (A)
20
20
12
25
24
24
30
16
28
35
32
32
40
20
36
45
40
40
50
24
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
80
60
40
20
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
0.80
0.72
0.64
0.56
0.48
0.40
0.32
0.24
0.16
0.08
1.50
1.35
1.20
1.05
0.90
0.75
0.60
0.45
0.30
0.15
0.30
0.27
0.24
0.21
0.18
0.15
0.12
0.09
0.06
0.03
2.0
1.6
1.2
0.8
0.4
4.0
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
0
0
0
0
0
0
0
0
0 4
4
4
8
4
5.8
8
8
12 16 20 24 28 32 36 40 44 48 52
12 16
12
SRP1235-1R2M
SRP1235-2R2M
SRP1235-R47M
SRP1235-R68M
SRP1235-R15M
8
16 20
11.6
DC Current (A)
DC Current (A)
DC Current (A)
DC Current (A)
DC Current (A)
20
12
24
24 28 32
17.4
28
16
32 36
23.2
Customers should verify actual device performance in their specific applications.
36
20
40
40
29
24
44
4
100
80
60
40
20
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
1.20
1.08
0.96
0.84
0.72
0.60
0.48
0.36
0.24
0.12
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
1.50
1.35
1.20
1.05
0.90
0.75
0.60
0.45
0.30
0.15
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
6.0
5.4
4.8
4.2
3.6
3.0
2.4
1.8
1.2
0.6
Specifications are subject to change without notice.
0
0
0
0
0
0
0
0
0
0
4
4
2
4
4
8
8
8
4
12 16 20 24
12
8
12
6
SRP1235-R22M
SRP1235-R60M
SRP1235-R82M
SRP1235-1R5M
SRP1235-3R3M
16 20
DC Current (A)
DC Current (A)
DC Current (A)
DC Current (A)
DC Current (A)
16
8
12
20
10
24
16
28 32 36 40 44 48
24
12
28
14
28
20
32 36
16
32
24
18
36
40 44
28
20
40
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0