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Introduction
Specifications
Environmental
Performance curves
Physical characteristics
Soldering/Washing

Datasheet 3D Model

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ST235RAQ5N4

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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 @ 250 MHz 4	SRF min (MHz) 5	DCR max (mΩ) 6	Imax at 125°C (mA) 7
Part number 1	Inductance (nH) 2	Tolerance (%) 3	Q typ 4	Q typ 4	Q typ 4	Q min @ 250 MHz 4	SRF min (MHz) 5	DCR max (mΩ) 6	Imax at 125°C (mA) 7
ST235RAQ5N4_RZ	5.4	5,3,2	68	111	145	26	> 5000	57	600

Notes

When ordering, please specify tolerance, termination and testing codes: e.g. ST235RAQ5N9JRZ.
Inductance measured at 250 MHz using a Coilcraft SMD-F fixture in an Agilent/HP 4287 impedance analyzer with Coilcraft-provided correlation pieces.
Tolerances in bold are stocked for immediate shipment.
Q measured using an Agilent/HP 4991A with an Agilent/HP 16197 test fixture.
SRF measured using an Agilent/HP 8722ES network analyzer and a Coilcraft SMD-D test fixture.
DCR measured on a micro-ohmmeter and a Coilcraft CCF858 test fixture.
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

Testing:

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

All screening performed to the document’s latest revision.
Custom screening also available.

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: –40°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 Q vs Frequency

Physical characteristics

General specification

Core Material:

Ceramic

Weight:

0.7 – 1.0 mg

Packaging:

2000 or 10,000 per 7″ reel; Paper tape: 8 mm wide, 0.66 mm thick, 2 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.