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Close up of CP312RAQ
Datasheet 3D Model

CP312RAQ Series

Chip Inductors for Critical Applications

CP312RAQ Series features 45 inductance values available from 2.7 nH to 470 nH.
  • 0603 ceramic wirewound chip inductor.
  • High SRF – as high as 11.4 GHz.
  • Matte tin over nickel over silver-glass frit terminations.

Looking for the commercial version of this part? See Coilcraft 0603DC Series
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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (nH) 2 Tolerance (%) 3 900 MHz 1.7 GHz 2.4 GHz Q min 4 SRF min (GHz) 5 DCR max (Ω) 6 Imax (mA) 7
Q typ 4 Q typ 4 Q typ 4
CP312RAQ2N7_RZ 2.7 @ 250 MHz 5,3 80 117 148 34 @ 250 MHz 5.00 0.029 700
CP312RAQ3N3_RZ 3.3 @ 250 MHz 5,3,2 94 125 140 38 @ 250 MHz 5.00 0.042 700
CP312RAQ3N9_RZ 3.9 @ 250 MHz 5,3,2 105 144 177 43 @ 250 MHz 5.00 0.040 700
CP312RAQ4N3_RZ 4.3 @ 250 MHz 5,3,2 100 138 167 44 @ 250 MHz 5.00 0.040 700
CP312RAQ5N1_RZ 5.1 @ 250 MHz 5,3,2 88 126 152 36 @ 250 MHz 5.00 0.046 700
CP312RAQ5N6_RZ 5.6 @ 250 MHz 5,3,2 90 129 187 36 @ 250 MHz 5.00 0.046 700
CP312RAQ6N2_RZ 6.2 @ 250 MHz 5,3,2 84 110 125 36 @ 250 MHz 5.00 0.048 700
CP312RAQ6N8_RZ 6.8 @ 250 MHz 5,3,2 100 131 143 36 @ 250 MHz 4.30 0.048 700
CP312RAQ7N5_RZ 7.5 @ 250 MHz 5,3,2 88 126 160 36 @ 250 MHz 4.40 0.053 700
CP312RAQ8N2_RZ 8.2 @ 250 MHz 5,3,2 93 130 162 40 @ 250 MHz 5.00 0.053 700
CP312RAQ9N1_RZ 9.1 @ 250 MHz 5,3,2 97 117 112 43 @ 250 MHz 3.80 0.060 700
CP312RAQ10N_RZ 10 @ 250 MHz 5,3,2 92 107 98 40 @ 250 MHz 3.40 0.060 700
CP312RAQ11N_RZ 11 @ 250 MHz 5,3,2 94 132 157 39 @ 250 MHz 3.60 0.065 700
CP312RAQ12N_RZ 12 @ 250 MHz 5,3,2 94 122 145 39 @ 250 MHz 3.30 0.065 700
CP312RAQ15N_RZ 15 @ 250 MHz 5,3,2 87 92 91 39 @ 250 MHz 2.90 0.074 700
CP312RAQ16N_RZ 16 @ 250 MHz 5,3,2 82 77 64 39 @ 250 MHz 2.80 0.074 700
CP312RAQ18N_RZ 18 @ 250 MHz 5,3,2 80 72 50 38 @ 250 MHz 2.50 0.078 700
CP312RAQ20N_RZ 20 @ 250 MHz 5,3,2 80 70 55 40 @ 250 MHz 3.10 0.084 700
CP312RAQ22N_RZ 22 @ 250 MHz 5,3,2 88 84 56 40 @ 250 MHz 2.20 0.095 700
CP312RAQ27N_RZ 27 @ 250 MHz 5,3,2 82 67 40 40 @ 250 MHz 2.10 0.116 700
CP312RAQ30N_RZ 30 @ 250 MHz 5,3,2 77 69 41 37 @ 250 MHz 2.50 0.103 700
CP312RAQ33N_RZ 33 @ 250 MHz 5,3,2 74 53 - 40 @ 250 MHz 1.90 0.124 700
CP312RAQ36N_RZ 36 @ 250 MHz 5,3,2 79 67 - 39 @ 250 MHz 1.95 0.134 700
CP312RAQ39N_RZ 39 @ 250 MHz 5,3,2 73 56 - 37 @ 250 MHz 1.80 0.163 680
CP312RAQ43N_RZ 43 @ 250 MHz 5,3,2 82 74 - 40 @ 250 MHz 1.75 0.176 620
CP312RAQ47N_RZ 47 @ 200 MHz 5,3,2 73 50 - 37 @ 200 MHz 1.70 0.200 590
CP312RAQ51N_RZ 51 @ 200 MHz 5,3,2 77 57 - 38 @ 200 MHz 1.65 0.216 570
CP312RAQ56N_RZ 56 @ 200 MHz 5,3,2 72 48 - 37 @ 200 MHz 1.55 0.260 490
CP312RAQ62N_RZ 62 @ 200 MHz 5,3,2 73 50 - 37 @ 200 MHz 1.70 0.312 460
CP312RAQ68N_RZ 68 @ 200 MHz 5,3,2 63 - - 35 @ 200 MHz 1.40 0.372 420
CP312RAQ75N_RZ 75 @ 150 MHz 5,3,2 62 - - 28 @ 150 MHz 1.35 0.396 400
CP312RAQ82N_RZ 82 @ 150 MHz 5,3,2 66 - - 30 @ 150 MHz 1.30 0.424 390
CP312RAQ91N_RZ 91 @ 150 MHz 5,3,2 64 - - 29 @ 150 MHz 1.20 0.576 330
CP312RAQR10_RZ 100 @ 150 MHz 5,3,2 62 - - 28 @ 150 MHz 1.10 0.707 290
CP312RAQR11_RZ 110 @ 150 MHz 5,3,2 55 - - 28 @ 150 MHz 1.05 0.725 270
CP312RAQR12_RZ 120 @ 150 MHz 5,3,2 52 - - 28 @ 150 MHz 1.00 0.765 260
CP312RAQR13_RZ 130 @ 150 MHz 5,3,2 50 - - 28 @ 150 MHz 0.97 0.804 250
CP312RAQR15_RZ 150 @ 150 MHz 5,3,2 47 - - 28 @ 150 MHz 0.93 1.050 220
CP312RAQR18_RZ 180 @ 100 MHz 5,3,2 44 - - 24 @ 100 MHz 0.85 1.390 190
CP312RAQR22_RZ 220 @ 100 MHz 5,3,2 - - - 24 @ 100 MHz 0.76 1.690 160
CP312RAQR27_RZ 270 @ 100 MHz 5,3,2 - - - 25 @ 100 MHz 0.72 2.060 140
CP312RAQR30_RZ 300 @ 100 MHz 5,3,2 - - - 25 @ 100 MHz 0.63 2.660 120
CP312RAQR33_RZ 330 @ 100 MHz 5,3,2 - - - 25 @ 100 MHz 0.59 2.930 110
CP312RAQR39_RZ 390 @ 100 MHz 5,3,2 - - - 25 @ 100 MHz 0.55 3.920 90
CP312RAQR47_RZ 470 @ 100 MHz 5,3,2 - - - 26 @ 100 MHz 0.50 5.400 70
Notes
  1. When ordering, please specify tolerance, termination and screening codes: e.g. CP312RAQR47JRZ.
  2. Inductance measured using a Coilcraft SMD-A fixture in an Agilent/ HP E4982A impedance analyzer with Coilcraft-provided correlation pieces.
  3. Tolerances in bold are stocked for immediate shipment.
  4. Q measured using an Agilent/HP4991A with an Agilent/HP16197 test fixture.
  5. SRF measured using an Agilent/HP 5071C/8722ES network analyzer and a Coilcraft CCF1052 test fixture.
  6. DCR measured on a micro-ohmmeter and a Coilcraft CCF1010/A test fixture.
  7. Maximum current that can be applied at 125°C.

Tolerance:

  • G = 2%
  • H = 3%
  • J = 5%
Table shows stock values and tolerances in bold.

Termination:

  • R = Matte tin over nickel over silver-platinum glass frit
  • P = Tin-lead (63/37) over tin over nickel over silver platinum-glass frit
  • Q = Tin-silver-copper (95.5/4/0.5) over tin over nickel over silver-platinum-glass frit

Screening:

  • Z = Unscreened
  • H = Coilcraft CP-SA-10001 Group A
  • Screening performed to the document’s latest revision.
  • Custom testing also available.
  • Country of origin restrictions available; prefix option G.
Environmental
Ambient temperature range:
–40°C to +125°C with Irms current.
Storage temperature range:
Component: –55°C to +140°C.
Tape and reel packaging: –55°C to +80°C.
Maximum part temperature:
+140°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
See FIT/MTBF Calculations

Performance curves

Typical L vs Frequency

Typical L vs Frequency

Typical Q vs Frequency

Typical Q vs Frequency

Physical characteristics

cp312raq_dim.PNG
A max B max C max D E F G H  
0.067 0.039 0.035 0.028 0.013 0.033 0.016 0.051 inches
1,70 0,99 0,89 0,71 0,33 0,85 0,40 1,29 mm

Notes: Dimensions are before optional solder application. For maximum overall dimensions including solder, add 0.0025 in / 0,064 mm to B and 0.006 in / 0,15 mm to A and C.

General specification

Core Material:
Ceramic
Weight:
3 – 4 mg
Packaging:
2000 per 7” reel; Paper tape: 8 mm wide, 0.95 mm thick, 4 mm pocket spacing.
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. See Doc787_PCB_Washing.pdf.