Datasheet 3D Model

MS312RAA Series

High-Reliability Chip Inductors

The MS312RAA Series is not recommended for new designs, but existing customers will continue to be supported. As an alternative, we recommend the AR312RAA Series which is a drop-in replacement

Small size, exceptional Q and high SRFs make these inductors ideal for high frequency applications where size is at a premium. They also have excellent DCR and current carrying characteristics.

This robust version of Coilcraft’s standard 0603CS series features high temperature materials that allow operation in ambient temperatures up to 155°C and a leach-resistant base metalization with tin-lead (Sn-Pb) terminations that ensures the best possible board adhesion.

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (nH) 2	Tolerance (%)	900 MHz		1.7 GHz		Q min 3	SRF min (MHz) 4	DCR max (Ω) 5	Imax (mA)	Color code
Part number 1	Inductance (nH) 2	Tolerance (%)	L typ	Q typ 3	L typ	Q typ 3	Q min 3	SRF min (MHz) 4	DCR max (Ω) 5	Imax (mA)	Color code
MS312RAA1N6JSZ	1.6 @ 250 MHz	5	1.67	49	1.65	63	26	> 5000	0.022	700	Red
MS312RAA1N8JSZ	1.8 @ 250 MHz	5	1.83	35	1.86	50	21	> 5000	0.045	700	Black
MS312RAA3N3_SZ	3.3 @ 250 MHz	5,2	3.31	75	3.38	88	35	> 5000	0.045	700	Blue
MS312RAA3N6_SZ	3.6 @ 250 MHz	5,2	3.72	53	3.71	65	18	> 5000	0.063	700	Red
MS312RAA3N9_SZ	3.9 @ 250 MHz	5,2	3.95	49	3.96	67	20	> 5000	0.080	700	Brown
MS312RAA4N3_SZ	4.3 @ 250 MHz	5,2	4.32	50	4.33	70	29	> 5000	0.063	700	Orange
MS312RAA4N7_SZ	4.7 @ 250 MHz	5,2	4.72	47	4.75	57	18	> 5000	0.116	605	Violet
MS312RAA5N1_SZ	5.1 @ 250 MHz	5,2	4.93	47	4.95	56	20	> 5000	0.140	510	Green
MS312RAA5N6_SZ	5.6 @ 250 MHz	5,2,1	5.77	63	6.05	80	25	4760	0.075	700	Black
MS312RAA6N8_SZ	6.8 @ 250 MHz	5,2,1	6.75	60	7.1	81	28	4660	0.110	700	Red
MS312RAA7N5_SZ	7.5 @ 250 MHz	5,2,1	7.7	60	7.82	65	23	4320	0.106	700	Brown
MS312RAA8N2_SZ	8.2 @ 250 MHz	5,2,1	8.25	82	8.37	87	26	3880	0.115	700	Orange
MS312RAA8N7_SZ	8.7 @ 250 MHz	5,2,1	8.86	62	9.32	58	27	3680	0.109	700	Yellow
MS312RAA9N5_SZ	9.5 @ 250 MHz	5,2,1	9.7	59	9.92	61	22	4100	0.135	700	Blue
MS312RAA10N_SZ	10 @ 250 MHz	5,2,1	10	66	10.6	83	28	3860	0.130	700	Orange
MS312RAA11N_SZ	11 @ 250 MHz	5,2,1	11	53	11.5	56	26	3640	0.130	700	Gray
MS312RAA12N_SZ	12 @ 250 MHz	5,2,1	12.3	72	13.5	83	29	3220	0.130	620	Yellow
MS312RAA15N_SZ	15 @ 250 MHz	5,2,1	15.4	64	16.8	89	28	3020	0.170	600	Green
MS312RAA16N_SZ	16 @ 250 MHz	5,2,1	16.2	55	17.3	52	29	3040	0.170	600	White
MS312RAA18N_SZ	18 @ 250 MHz	5,2,1	18.7	70	21.4	69	29	2680	0.170	600	Blue
MS312RAA22N_SZ	22 @ 250 MHz	5,2,1	22.8	73	26.1	71	31	2380	0.190	560	Violet
MS312RAA23N_SZ	23 @ 250 MHz	5,2,1	24.1	71	28	67	39	2380	0.190	560	Orange
MS312RAA24N_SZ	24 @ 250 MHz	5,2,1	24.5	45	28.7	39	36	2380	0.190	560	Black
MS312RAA27N_SZ	27 @ 250 MHz	5,2,1	29.2	74	34.6	65	32	2380	0.220	530	Gray
MS312RAA30N_SZ	30 @ 250 MHz	5,2,1	31.4	47	39.9	28	32	2240	0.220	500	Brown
MS312RAA33N_SZ	33 @ 250 MHz	5,2,1	36	67	49.5	42	33	1900	0.220	500	White
MS312RAA36N_SZ	36 @ 250 MHz	5,2,1	39.4	47	52.7	24	32	1960	0.250	460	Red
MS312RAA39N_SZ	39 @ 250 MHz	5,2,1	42.7	60	60.2	40	36	1740	0.250	460	Black
MS312RAA43N_SZ	43 @ 250 MHz	5,2,1	47	44	64.9	21	28	1580	0.280	440	Orange
MS312RAA47N_SZ	47 @ 200 MHz	5,2,1	52.2	62	77.2	35	35	1560	0.280	440	Brown
MS312RAA51N_SZ	51 @ 200 MHz	5,2,1	55.5	69	82.2	34	38	1560	0.300	420	Blue
MS312RAA56N_SZ	56 @ 200 MHz	5,2,1	62.5	56	97	26	37	1480	0.310	420	Red
MS312RAA68N_SZ	68 @ 200 MHz	5,2,1	80.5	54	168	21	35	1380	0.340	410	Orange
MS312RAA72N_SZ	72 @ 150 MHz	5,2,1	82	53	135	20	35	1360	0.490	340	Yellow
MS312RAA82N_SZ	82 @ 150 MHz	5,2,1	96.2	54	177	21	29	1300	0.540	340	Green
MS312RAAR10_SZ	100 @ 150 MHz	5,2,1	124	49	-	-	28	1140	0.580	310	Blue
MS312RAAR11_SZ	110 @ 150 MHz	5,2,1	138	43	-	-	30	1080	0.610	310	Violet
MS312RAAR12_SZ	120 @ 150 MHz	5,2,1	166	39	-	-	28	1020	0.650	270	Gray
MS312RAAR15_SZ	150 @ 150 MHz	5,2,1	250	25	-	-	28	900	0.915	250	White
MS312RAAR18_SZ	180 @ 100 MHz	5,2,1	305	22	-	-	25	820	1.250	210	Black
MS312RAAR20_SZ	200 @ 100 MHz	5,2	-	-	-	-	25	800	1.980	170	Green
MS312RAAR21_SZ	210 @ 100 MHz	5,2	-	-	-	-	26	780	2.060	160	Gray
MS312RAAR22_SZ	220 @ 100 MHz	5,2	-	-	-	-	25	760	2.100	160	Brown
MS312RAAR25_SZ	250 @ 100 MHz	5,2	-	-	-	-	25	740	3.550	120	Violet
MS312RAAR27_SZ	270 @ 100 MHz	5,2	-	-	-	-	26	700	2.300	150	Red
MS312RAAR33_SZ	330 @ 100 MHz	5,2	-	-	-	-	26	620	3.890	100	Blue
MS312RAAR39_SZ	390 @ 100 MHz	5,2	-	-	-	-	27	580	4.350	100	Yellow

Notes

When ordering, specify tolerance and termination codes: e.g. MS312RAAR39JSZ.
Inductance measured using a Coilcraft SMD-A test fixture and Coilcraft-provided correlation pieces with an Agilent/HP 4286A impedance analyzer or equivalent.
Q measured at the same frequency as inductance using an Agilent/HP 4291A with an Agilent/HP 16197A test fixture or equivalents.
SRF measured using an Agilent/HP 8753ES network analyzer and a Coilcraft CCF1232 test fixture.
DCR measured on a Keithley 580 micro-ohmmeter and a Coilcraft CCF1010 test fixture.

Tolerance:

F = 1%
G = 2%
J = 5%

Termination:

S = Tin-lead (63/37) over silver-platinum-glass frit.
T = Tin-silver-copper (95.5/4/0.5) over silver-platinum-glass frit. (Special order, added cost)
P = Tin-lead (63/37) over tin over nickel over silver-platinum-glass frit. (Special order, added cost)
Q = Tin-silver-copper (95.5/4/0.5) over tin over nickel over silver-platinum-glass frit. (Special order, added cost)

Environmental

Ambient temperature range:

–55°C to +125°C with Imax current.

Storage temperature range:

Component: –65°C to +155°C.
Packaging: –55°C to +80°C.

Maximum part temperature:

+155°C (ambient + temp rise).

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Typical L vs Frequency

Typical Q vs Frequency

Physical characteristics

General specification

Core Material:

Ceramic

Packaging:

2000 per 7′′ reel Paper tape: 8 mm wide, 1.0 mm thick, 4 mm pocket spacing.

Temperature coefficient of inductance:

+25 to +155 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.