Datasheet 3D Model

ST235RAP Series

Chip Inductors for Critical Applications

ST235RAP Series chip inductors feature higher inductance values than other 0402 ceramic chip inductors.

Higher inductance values than other 0402 ceramic chip inductors.
28 inductance values from 43 nH to 820 nH.
Matte tin over nickel over silver-platinum-glass frit terminations. Other terminations available at additional cost.

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Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (nH) 2 (Tolerance: ± 5%)	Q min 3	SRF min (MHz) 4	DCR max (Ω) 5	Imax (mA)
Part number 1	Inductance (nH) 2 (Tolerance: ± 5%)	Q min 3	SRF min (MHz) 4	DCR max (Ω) 5	Imax (mA)
ST235RAP430JRZ	43	21 @ 250 MHz	2900	0.75	250
ST235RAP510JRZ	51	21 @ 250 MHz	2700	0.85	240
ST235RAP560JRZ	56	21 @ 250 MHz	2600	0.90	240
ST235RAP680JRZ	68	11 @ 100 MHz	760	0.85	230
ST235RAP720JRZ	72	12 @ 100 MHz	720	0.90	210
ST235RAP750JRZ	75	11 @ 100 MHz	700	0.90	210
ST235RAP820JRZ	82	11 @ 100 MHz	680	0.95	210
ST235RAP900JRZ	90	11 @ 100 MHz	560	1.00	210
ST235RAP910JRZ	91	10 @ 100 MHz	560	1.00	200
ST235RAP101JRZ	100	10 @ 100 MHz	680	1.05	200
ST235RAP111JRZ	110	10 @ 100 MHz	670	1.10	190
ST235RAP121JRZ	120	11 @ 100 MHz	530	1.15	190
ST235RAP151JRZ	150	10 @ 100 MHz	640	1.35	180
ST235RAP181JRZ	180	9 @ 100 MHz	510	1.45	170
ST235RAP201JRZ	200	9 @ 100 MHz	510	1.55	170
ST235RAP221JRZ	220	9 @ 100 MHz	540	1.70	170
ST235RAP271JRZ	270	8 @ 25.0 MHz	470	1.95	160
ST235RAP301JRZ	300	8 @ 25.0 MHz	480	2.15	160
ST235RAP331JRZ	330	8 @ 25.0 MHz	410	2.23	150
ST235RAP361JRZ	360	8 @ 25.0 MHz	388	2.36	140
ST235RAP391JRZ	390	8 @ 25.0 MHz	208	2.35	140
ST235RAP471JRZ	470	8 @ 25.0 MHz	176	2.67	130
ST235RAP511JRZ	510	9 @ 25.0 MHz	360	3.50	110
ST235RAP561JRZ	560	9 @ 25.0 MHz	336	3.70	110
ST235RAP601JRZ	600	9 @ 25.0 MHz	352	3.78	100
ST235RAP681JRZ	680	10 @ 25.0 MHz	304	5.15	90
ST235RAP741JRZ	740	9 @ 25.0 MHz	132	5.45	80
ST235RAP821JRZ	820	10 @ 25.0 MHz	308	5.85	70

Notes

When ordering, please specify termination and screening codes: e.g. ST235RAP821JRZ.
Inductance measured using a Coilcraft SMD-F test fixture and Coilcraft-provided correlation pieces with an Agilent/HP 4286A impedance analyzer or equivalent.
Q measured 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 Keithley 580 micro-ohmmeter and a Coilcraft CCF1010 test fixture.

Termination:

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

Testing:

Z = Unscreened
H = Group A screening per Coilcraft CP-SA-10001

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 Impedance vs Frequency

Typical L vs Frequency

Typical Q vs Frequency

Physical characteristics

General specification

Core Material:

Ceramic

Weight:

0.7 – 1.3 mg

Packaging:

2000 per 7″ reel. Paper tape: 8 mm wide, 0.66 mm thick, 2 mm pocket spacing.

Temperature coefficient of inductance:

+25 to +150 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.