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Document 105-1

Chip Inductors – 1812CS (4532)
HalogenFree• Higher SRF values than 1812 size parts with ferrite cores• 5% tolerances for all values• 19 inductance values from 1.0 to 33 µH

AEC		
Inductance2
Part number1(µH)
1812CS-102XJR_	  1.0 @ 7.9 MHz
1812CS-122XJR_	  1.2 @ 7.9 MHz
1812CS-152X_R_	  1.5 @ 7.9 MHz
1812CS-182XJR_	  1.8 @ 7.9 MHz
1812CS-222X_R_	  2.2 @ 7.9 MHz
1812CS-272X_R_	  2.7 @ 7.9 MHz
1812CS-332X_R_	  3.3 @ 7.9 MHz
1812CS-392X_R_	  3.9 @ 7.9 MHz
1812CS-472XJR_	  4.7 @ 7.9 MHz
1812CS-562XJR_	  5.6 @ 7.9 MHz
1812CS-682XJR_	  6.8 @ 7.9 MHz
1812CS-822X_R_	  8.2 @ 7.9 MHz
1812CS-103XJR_
10 @ 7.9 MHz
1812CS-123XJR_
12 @ 2.5 MHz
1812CS-153X_R_
15 @ 2.5 MHz
1812CS-183XJR_
18 @ 2.5 MHz
1812CS-223X_R_
22 @ 2.5 MHz
1812CS-273XJR_
27 @ 2.5 MHz
1812CS-333X_R_
33 @ 2.5 MHz

Q200 +125°C

Percent		 SRF min5
tolerance3Q min4(MHz)560 @ 50 MHz
310
562 @ 50 MHz2305,265 @ 50 MHz
210
568 @ 50 MHz
190
5,263 @ 50 MHz
170
5,263 @ 50 MHz
160
5,265 @ 50 MHz
145
5,269 @ 50 MHz
130
563 @ 50 MHz
115
559 @ 50 MHz
100
560 @ 50 MHz
90
5,247 @ 50 MHz
80
536 @ 50 MHz
70
535 @ 10 MHz
60
5,234 @ 10 MHz
50
530 @ 10 MHz
45
5,232 @ 10 MHz
40
529 @ 10 MHz
30
5,220 @ 10 MHz
20

1. When ordering, specify tolerance, termination and packaging codes:

1812CS-333XGRC
G = 2% J = 5%
(Table shows stock tolerances in bold.)
Termination: R = RoHS compliant matte tin over nickel over silverplatinum-glass frit.
E = Halogen free component. RoHS compliant silverpalladium-platinum-glass frit terminations.
L = RoHS compliant, not halogen-free. Silver-palladiumplatinum-glass frit terminations.			Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
tape (600 parts per full reel). Quantities less than fullreel available: in tape (not machine ready) or withleader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastictape. Factory order only, not stocked (2200 parts perfull reel).
B = Less than full reel. In an effort to simplify our partnumbering system, Coilcraft is eliminating the needfor multiple packaging codes. When ordering, simply
change the last letter of your part number from B to C.
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 testfixture.
5. SRF measured using an Agilent/HP 8753D network analyzer and aCoilcraft SMD-D test fixture.
6. DCR measured on a Cambridge Technology micro-ohmmeter and a
Coilcraft CCF859 test fixture.
7. Current that causes a 15°C temperature rise from 25°C ambient.
This information is for reference only and does not represent absolutemaximum ratings.
8. Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
Refer to RF Inductors – Color Coding for the explanation of color dots.
Tolerance:

Request free evaluation samples by contacting Coilcraft orvisiting www.coilcraft.com.

DCR max6(Ohms)
1.2
1.2
1.6
2.0
2.2
3.2
3.8
5.0
5.4
5.7
6.6
7.0
7.7
8.7
9.6
10.5
11.5
12.5
13.5

Irms7(mA)
480
480
430
380
340
300
270
240
230
220
210
200
190
180
170
160
155
150
145

Designer’s Kit C337 contains 10 of each 5% partCore material Ceramic
Environmental RoHS compliant, halogen freeTerminations RoHS compliant matte tin over nickel over silver
platinum-glass frit. Other terminations available at additional cost.
Weight 109 – 128 mg
Ambient temperature –40°C to +125°C with Irms current
Maximum part temperature +140°C (ambient + temp rise).
Storage temperature Component: –40°C to +140°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at+260°C, parts cooled to room temperature between cycles
Temperature Coefficient of Inductance (TCL) +25 to +125 ppm/°C
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /85% relative humidity)
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
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.

US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

Document 105-1

Revised 08/08/22© Coilcraft Inc. 2022
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.

Document 105-2

Chip Inductors – 1812CS Series (4532)
Typical Q vs Frequency

Typical L vs Frequency

80HalogenFree40

1.8 µH

33.0 µH

3.9 µH

7030+50Q Factor

AEC
Q200 125°C

Inductance (µH)

60

8.2 µH

4030

15.0 µH
22.0 µH

22.0 µH

2015.0 µH

8.2 µH

102033.0 µH

3.9 µH
1.8 µH

1000
110010Frequency (MHz)CBoverallEterminal

Amax

B
maxCmax

Pick andplacematerial

JFI

Terminal wraparound:approx 0.015/0,38 both ends

Recommended
Land Pattern

EF

100

1000

Document 105-2

Revised 08/08/22

Frequency (MHz)

IGD
ref

10H

DF

A

1

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

1,143,00 mm

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

US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg© Coilcraft Inc. 2022
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.