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介绍
规格
环境
性能曲线
原理图
物理特性
卷装
焊接/清洗

3D Model Datasheet

1812TRX Series

Compact SMT Ethernet Isolation Transformer

Coilcraft’s 1812TRX Ethernet isolation transformer features a fully automated construction, not only reducing cost but also increasing reliability. Its compact surface mount package measures just 4.5 x 3.2 x 3.1 mm, significantly smaller than traditional hand wound toroidal transformers. The 1812TRX is AEC-Q200 (–40°C to +125°C) qualified, making it an ideal choice for automotive and other harsh-environment applications. It also meets Gigabit Ethernet 10/100/1000BASE-T1 and Power over Ethernet standards per IEEE 802.3, ensuring seamless integration into a variety of network environments.

Complies with IEEE 802.3 Standards
Chip-style in a compact SMT package: 4.5 x 3.2 x 3.1 mm
Fully automated for cost reduction and reliability
AEC-Q200 Grade 1 (–40°C to +125°C)

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零件号

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计数	单价
1	$2.50
100	$2.45
300	$1.84
600	$1.10
1200	$0.86

对于大批量采购或非库存产品，点击这里请求报价。

Termination

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

Packaging

C = 7" machine-ready reel

. 现货，可今天发货.

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规格

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

零件号 1 (Hover for schematics)	每个绕组的最小电感 (µH) 2	测试频率 (kHz)	DCR max (Ω)	额定电流 (mA)	插入损耗 (db)	带宽 (MHz)	隔离电压 (Vrms) 3	匝数比
1812TRX-S124R_	120	100	2.5	430	0.15	0.1 — 1100	1500	1 : 1
1812TRX-S254R_	250	100	3.8	350	0.35	0.1 — 820	1500	1 : 1

注释

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.

IDC max per the center tap is the current required to increase the part temperature 15°C from ambient 25°C.

端子:

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

包装:

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).

环境

环境:

符合RoHS

环境温度范围:

–40°C to +125°C with Irms current

储存温度范围:

Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C

最高元件温度:

+140°C (ambient + temp rise)

故障率（FIT）/平均故障间隔时间（MTBF）:

See FIT/MTBF Calculations

性能曲线

Insertion Loss

Return Loss

原理图

物理特性

卷装规格

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

一般规格

核心材料:

Ferrite

重量:

120 – 130 mg

包装:

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

焊接/清洗

湿气敏感度等级（MSL）:

1 (unlimited floor life at <30°C / 85% relative humidity)

抗焊接热:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

焊接之前，请参阅焊接线艺元件。

PCB清洗:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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