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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

3D Model Datasheet

1812TRX-S254

Name: 1812TRX-S254RC
Brand: Coilcraft
SKU: 1812TRX-S254RC
Price: 1.10 USD
Availability: InStock

1812TRX-S254RC

For more information and specification about the part.

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Count	Unit price
1	$2.50
100	$2.45
300	$1.84
600	$1.10
1200	$0.86

For high volume or non-stock items, request a quote.

Termination

R = Matte tin over nickel over silver-platinum-glass frit

Packaging

C = 7" machine-ready reel

. in stock, ready to ship today.

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Specifications

Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.

Part number 1 (Hover for schematics)	L min per winding (µH) 2	Test frequency (kHz)	DCR max (Ω)	Current rating (mA)	Insertion loss (db)	Bandwidth (MHz)	Isolation Voltage (Vrms) 3	Turns Ratio
Pri	Pri
1812TRX-S254R_	250	100	3.8	350	0.35	0.1 — 820	1500	1 : 1

Notes

When ordering, please specify packaging code: e.g. 1812TRX-S254RC
Inductance is per winding, measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/HP 4263B LCR meter and a Coilcraft CCF 1113 fixture.
1500 Vrms, one minute isolation (hipot) between primary to secondary.

Termination:

R = RoHS compliant matte tin over nickel over silver-platinum-glass frit

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 parts per full reel).

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +125°C with Irms current

Storage temperature range:

Component: –40°C to +125°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

Insertion Loss

Return Loss

Schematics

Physical characteristics

L	M	N	P	R	S	T
0.039	0.028	0.022	0.071	0.052	0.028	0.028	inches
1,0	0,70	0,55	1,80	1,325	0,70	0,70	mm

Tape and Reel specification

Parts per reel*		Reel dimensions (mm)					Tape dimensions (mm)						Orientation
7" (178 mm)	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
600	2200*	178/330	60/100	13	18,4	12,4	12	8	4	2	3,25	0,25

* Special order

General specification

Core Material:

Ferrite

Weight:

120 – 130 mg

Packaging:

600/7″ reel; 2200/13″ reel Plastic tape: 12 mm wide, 0.25 mm thick, 8 mm pocket spacing, 3.25 mm pocket depth

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. More info.

1812TRX-S254

1812TRX-S254RC