3D Model Datasheet

1812WBT Surface Mount

Wideband RF Transformers

The smallest RF transformers available
Available in both 1:1, 1.5:1 and 2:1 versions
1812 size ferrite body with a ceramic base
Jacketed with a high temp material that creates a flat top for auto insertion
Typical applications are as impedance or isolation transformer
Can also be used for balanced to unbalanced (balun) conversion
RoHS-compliant. 260°C compatible. Gold over nickel over moly-manganese terminations.

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零件号

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计数	单价
1	$2.59
300	$2.06
600	$1.53
1200	$1.13
2400	$0.85
4800	$0.59

对于大批量采购或非库存产品，点击这里请求报价。

Termination

L = Gold over nickel over moly-manganese

Packaging

C = 7" machine-ready reel

. 现货，可今天发货.

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零件号

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规格

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

1:1 Transformers

零件号 1 (Hover for schematics)	每个绕组的最小电感 (µH) 2	测试频率 (MHz)	DCR max (Ω) 3	Imp. ratio pri:sec	额定电流 (mA)	插入损耗 (db)	带宽 (MHz)	隔离电压 (Vrms)	色点
Pri	Pri
1812WBT-1L_	14	10.0	4.8	1 : 1	200	< 1	0.34 — 22	50	Yellow
1812WBT-2L_	5.3	10.0	1.8	1 : 1	400	< 1	0.8 — 60	50	Green
1812WBT-3L_	1.3	50.0	0.70	1 : 1	500	< 1	4 — 200	50	White
1812WBT-4L_	0.22	50.0	0.30	1 : 1	700	< 1	11 — 480	50	Orange
1812WBT-5L_	0.090	50.0	0.15	1 : 1	700	< 1.5	48 — 645	50	Red

1.5:1 Transformers

零件号 1 (Hover for schematics)	每个绕组的最小电感 (µH) 2		测试频率 (MHz)	DCR max (Ω) 3		Imp. ratio pri:sec	额定电流 (mA)	插入损耗 (db)	带宽 (MHz)	隔离电压 (Vrms)	色点
零件号 1 (Hover for schematics)	Pri	Sec	测试频率 (MHz)	Pri	Sec	Imp. ratio pri:sec	额定电流 (mA)	插入损耗 (db)	带宽 (MHz)	隔离电压 (Vrms)	色点
1812WBT1.5-1L_	5.0	3.3	10.0	1.1	0.87	1.5 : 1	400	< 0.5	1.3 — 100	50	Red
1812WBT1.5-2L_	2.5	1.6	10.0	0.74	0.58	1.5 : 1	500	< 0.5	2.75 — 135	50	Orange
1812WBT1.5-3L_	1.0	0.60	10.0	0.43	0.34	1.5 : 1	500	< 0.75	7.2 — 200	50	Yellow
1812WBT1.5-4L_	0.14	0.090	10.0	0.18	0.14	1.5 : 1	700	< 2.25	38 — 535	50	Green

2:1 Transformers

零件号 1 (Hover for schematics)	每个绕组的最小电感 (µH) 2		测试频率 (MHz)	DCR max (Ω) 3		Imp. ratio pri:sec	额定电流 (mA)	插入损耗 (db)	带宽 (MHz)	隔离电压 (Vrms)	色点
零件号 1 (Hover for schematics)	Pri	Sec	测试频率 (MHz)	Pri	Sec	Imp. ratio pri:sec	额定电流 (mA)	插入损耗 (db)	带宽 (MHz)	隔离电压 (Vrms)	色点
1812WBT2-1L_	14	6.9	10.0	4.6	3.2	2 : 1	200	< 1.5	0.8 — 23	50	Brown
1812WBT2-2L_	5.9	2.9	10.0	1.3	0.95	2 : 1	400	< 1.5	2.2 — 65	50	Red
1812WBT2-3L_	2.6	1.3	10.0	0.52	0.42	2 : 1	600	< 1.5	4 — 105	50	Orange
1812WBT2-4L_	0.91	0.46	50.0	0.27	0.23	2 : 1	700	< 1.5	11 — 200	50	Yellow

注释

When ordering, please specify packaging code: e.g. 1812WBT1.5-4LC
Inductance is per winding.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.

端子:

L = RoHS compliant gold over nickel over moly-manganese.
T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). (Special order)

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).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
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 +85°C with Irms current

储存温度范围:

Component: –40°C to +85°C
Tape and reel packaging: –40°C to +80°C

故障率（FIT）/平均故障间隔时间（MTBF）:

See FIT/MTBF Calculations

性能曲线

Frequency Response (1:1 Transformers)

Frequency Response (1.5:1 Transformers)

Frequency Response (2:1 Transformers)

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	3,7	0,3

* Special order

一般规格

核心材料:

Ferrite

重量:

131 – 152 mg

包装:

600/7″ reel; 2200/13″ reel Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 3.7 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.

1812WBT Surface Mount

Wideband RF Transformers