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1812CS (4532)

High Q Ceramic Chip Inductors

RoHS compliant halogen free AEC-Q flag
Our 1812CS Series of wirewound ceramic chip inductors have exceptionally high Q and excellent current handling compared to non-wirewound inductors of the same size. The ceramic construction withstands high peak currents and assures high self-resonant frequencies – up to 310 MHz. This high temperature series meets AEC-Q200 Grade 1 (-40°C to +125°C).
  • Inductance values from 1 µH to 33 µH
  • Exceptionally high Q compared to non-wirewound inductors, especially at high frequencies
  • Ceramic construction for high self resonance up to 3 times higher than ferrite inductors
  • Excellent current carrying capacity for their size
  • Defense Supply Center CID A-A-59740
  • AEC-Q200 Grade 1 (−40°C to +125°C)

Need parts for space, military or other critical applications?
See Coilcraft ML450RAA Series | See Coilcraft MS450RAA Series | See Coilcraft ST450RAA Series
Buy Now:
Count Unit price
1 $0.69
200 $0.55
600 $0.40
1200 $0.30
3000 $0.25
6000 $0.22
12000 $0.19

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
Request a Sample:

Designer's Kit:
Kit Values Price
C337 19 (10 of each) $50.00

Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2 Tolerance (%) 3 Q min 4 SRF min (MHz) 5 DCR max (Ω) 6 Irms (mA) 7
1812CS-102XJR_ 1.0 @ 8 MHz 5 60 @ 50 MHz 310 1.2 480
1812CS-122XJR_ 1.2 @ 8 MHz 5 62 @ 50 MHz 230 1.2 480
1812CS-152X_R_ 1.5 @ 8 MHz 2,5 65 @ 50 MHz 210 1.6 430
1812CS-182XJR_ 1.8 @ 8 MHz 5 68 @ 50 MHz 190 2.0 380
1812CS-222X_R_ 2.2 @ 8 MHz 2,5 63 @ 50 MHz 170 2.2 340
1812CS-272X_R_ 2.7 @ 8 MHz 2,5 63 @ 50 MHz 160 3.2 300
1812CS-332X_R_ 3.3 @ 8 MHz 2,5 65 @ 50 MHz 145 3.8 270
1812CS-392X_R_ 3.9 @ 8 MHz 2,5 69 @ 50 MHz 130 5.0 240
1812CS-472XJR_ 4.7 @ 8 MHz 5 63 @ 50 MHz 115 5.4 230
1812CS-562XJR_ 5.6 @ 8 MHz 5 59 @ 50 MHz 100 5.7 220
1812CS-682XJR_ 6.8 @ 8 MHz 5 60 @ 50 MHz 90.0 6.6 210
1812CS-822X_R_ 8.2 @ 8 MHz 2,5 47 @ 50 MHz 80.0 7.0 200
1812CS-103XJR_ 10 @ 8 MHz 5 36 @ 50 MHz 70.0 7.7 190
1812CS-123XJR_ 12 @ 3 MHz 5 35 @ 10 MHz 60.0 8.7 180
1812CS-153X_R_ 15 @ 3 MHz 2,5 34 @ 10 MHz 50.0 9.6 170
1812CS-183XJR_ 18 @ 3 MHz 5 30 @ 10 MHz 45.0 10.5 160
1812CS-223X_R_ 22 @ 3 MHz 2,5 32 @ 10 MHz 40.0 11.5 155
1812CS-273XJR_ 27 @ 3 MHz 5 29 @ 10 MHz 30.0 12.5 150
1812CS-333X_R_ 33 @ 3 MHz 2,5 20 @ 10 MHz 20.0 13.5 145
Notes
  1. When ordering, please specify tolerancetermination and packaging codes: e.g. 1812CS-333XGRC
  2. Inductance measured using a Coilcraft SMD-A fixture in an Agilent/HP 4286A impedance analyzer with Coilcraft-provided correlation pieces.
  3. Tolerances in bold are stocked for immediate shipment.
  4. Q measured using an Agilent/HP 4291A with an Agilent/HP 16193 test fixture.
  5. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture.
  6. DCR measured on a Cambridge Technology micro-ohmmeter and a Coilcraft CCF859 test fixture. For other operating temperatures, use this DCR at Temperature calculator.
  7. Current that causes a 15°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.

Tolerance:

  • = 2%, = 5% (Table above shows stock tolerances in bold.)

Termination:

  • R = RoHS compliant, matte tin over nickel over silver platinum-glass frit.
  • E = Halogen free component. RoHS compliant. Silver-palladium-platinum-glass frit.
  • L = RoHS compliant, not halogen-free. Silver-palladium-platinum-glass frit.
  • T = RoHS tin-silver-copper (95.5/4/0.5) (Special order, added cost)
  • S = non-RoHS tin-lead (63/37) (Special order, added cost)

Packaging:

  • C = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 parts per full reel).
  • B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
Environmental
Environmental:
RoHS compliant , halogen free
Ambient temperature range:
–40°C to +125°C with Irms current
Storage temperature range:
Component: –40°C to +140°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
+140°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

L vs Frequency

Q vs Frequency

Physical characteristics

1812csd.gif
 

A max B max C max D ref E F G H I J  
0.195 0.150 0.135 0.070 0.100 0.025 0.128 0.120 0.045 0.118 inches
4,95 3,81 3,43 1,78 2,54 0,64 3,25 3,05 1,14 3,00 mm

Height dimension (C) is before optional solder application.
For maximum height dimension including solder, add 0.006 in / 0,152 mm.

Tape and Reel specification

tapereel_pl.gif
 

Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_a.gif
600 2200* 178/330 60/100 13 18,4 12,4 12 8 4 2 3,7 0,3
* Special order

General specification

Core Material:
Ceramic
Weight:
109 – 128 mg
Packaging:
600 per 7″ reel; 2200 per 13″ reel. Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth
Temperature coefficient of inductance:
+25 to +125 ppm/°C

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

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