Product details

SMD Power Inductors    CER1257B
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CER1257B
Shape
Recommended Land pattern
Catalog
Graph of Characteristics
General specification
Taping information
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Features

  • Cost competitive shielded type inductor
  • SMD magnetic shielded type of power inductor
  • Suitable for power supply choke coil
  • Construction for high current
  • Operating temperature:-40℃~+125℃(The self-heating is included)

Applications

  • AudioVisual
  • TV and Monitor, Mini component, AV amplifier, Amplifier for profes, Camera, Recorder

  • Computer & Peripheral Device
  • Computer, Printer(MFP), Industorial machines

  • Home Electronics
  • LED Lights

  • Others
  • Power Supply, FA, Medical, Energy, Transceivers

Electrical Characteristics

Part Number Inductance (µH) DCR (Ω)
±30%
DC Saturation
Allowable Current (A)
Temperature Rise
Allowable Current (A)
Typical Spec Typical Spec
CER1257B-2R2N 2.2 ± 30% 0.006 17.1 11.4 9.9 6.8
CER1257B-3R3N 3.3 ± 30% 0.008 13.1 9.4 8.95 5.7
CER1257B-4R3N 4.3 ± 30% 0.009 11.7 8.1 8.15 5.45
CER1257B-5R6N 5.6 ± 30% 0.011 10.5 7.1 7.5 5
CER1257B-7R5N 7.5 ± 30% 0.012 8.85 6.2 7 4.7
CER1257B-100M 10 ± 20% 0.017 8.1 5.6 5.8 4
CER1257B-120M 12 ± 20% 0.022 7.25 5 5.15 3.7
CER1257B-150M 15 ± 20% 0.026 6.25 4.4 4.6 3.3
CER1257B-180M 18 ± 20% 0.029 5.7 4 4.4 2.95
CER1257B-220M 22 ± 20% 0.033 5.5 3.7 4.1 2.65
CER1257B-270M 27 ± 20% 0.043 4.75 3.2 3.55 2.55
CER1257B-330M 33 ± 20% 0.053 4 2.95 3.15 2.3
CER1257B-390M 39 ± 20% 0.056 3.75 2.75 3.05 2.2
CER1257B-470M 47 ± 20% 0.069 3.45 2.5 2.75 1.95
CER1257B-560M 56 ± 20% 0.081 3.2 2.3 2.5 1.8
CER1257B-680M 68 ± 20% 0.096 2.9 2.05 2.3 1.6
CER1257B-820M 82 ± 20% 0.13 2.6 1.85 1.95 1.4
CER1257B-101M 100 ± 20% 0.14 2.35 1.65 1.85 1.3
CER1257B-121M 120 ± 20% 0.18 2.15 1.5 1.65 1.2
CER1257B-151M 150 ± 20% 0.23 1.9 1.35 1.45 1.05
CER1257B-181M 180 ± 20% 0.26 1.75 1.2 1.3 1
CER1257B-221M 220 ± 20% 0.32 1.55 1.1 1.2 0.88
CER1257B-271M 270 ± 20% 0.38 1.4 1 1.1 0.81
CER1257B-331M 330 ± 20% 0.47 1.25 0.9 0.99 0.7
CER1257B-391M 390 ± 20% 0.54 1.15 0.8 0.92 0.67
CER1257B-471M 470 ± 20% 0.66 1.05 0.75 0.83 0.61
CER1257B-561M 560 ± 20% 0.79 1 0.7 0.75 0.54
CER1257B-681M 680 ± 20% 0.95 0.9 0.65 0.68 0.5
CER1257B-821M 820 ± 20% 1.15 0.79 0.55 0.61 0.44
CER1257B-102M 1000 ± 20% 1.42 0.73 0.5 0.55 0.4

Graph of Characteristics

Characteristics of DC Superposition
Characteristics of Temperature rise