3D Model Datasheet

Forward Mode Transformer

for 25 Watt Applications

Developed for Texas Instruments TPS23754 PWM Controller
Designed for forward topology operating at 250 kHz

立即购买:

计数	单价
1	$3.95
175	$3.37
700	$2.94
1400	$2.29
2800	$1.97
5000	$1.79

对于大批量采购或非库存产品，点击这里请求报价。

Termination

L = Tin-silver-copper over tin over nickel

Packaging

D = 13" machine-ready reel

. 现货，可今天发货.

索取样品:

典型应用

与Texas Instruments TPS23754一起使用

输入电压	输出 1		功率	Fsw
输入电压	Sec	Bias	功率	Fsw
20 V — 57 V	5 V , 4.8 A	12 V , 0.02 A	25 W	250 kHz

规格

Electrical specifications at 25°C.

零件号 (Hover for schematics)	最小电感 (µH) 2	DCR max (mΩ) 3			最大漏电感 (µH) 4	匝数比 5	隔离电压 (Vrms) 6
零件号 (Hover for schematics)	最小电感 (µH) 2	Pri	Sec	Bias	最大漏电感 (µH) 4	Pri : Sec : Bias	隔离电压 (Vrms) 6
WA8515-ALD	90	146	25	494	0.816	1 : 0.406 : 0.813	1500

注释

Output is with the secondary windings connected in parallel. Bias winding output is 12 V, 20 mA.
Inductance measured at 250 kHz, 0.1 Vrms, 0 Adc.
DCR for the secondary is measured with the windings connected in parallel. For other operating temperatures, use this DCR at Temperature calculator.
Leakage inductance is for the primary and is measured with the secondary shorted.
Turns ratio is with the secondary windings connected in parallel.
1500 Vrms one minute isolation primary and bias to secondary.

引脚长度:

RoHS-compliant. 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze.

端子:

RoHS tin-silver-copper over tin over nickel over phos bronze. Other terminations available at additional cost.

包装:

175 per 13″ reel. Plastic tape: 32 mm wide, 0.6 mm thick, 28 mm pocket spacing, 13.40 mm pocket depth.

环境

环境:

符合RoHS

环境温度范围:

−40°C to +85°C

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:

+125°C (ambient + temperature rise)

故障率（FIT）/平均故障间隔时间（MTBF）:

See FIT/MTBF Calculations

原理图

Secondary windings to be connected
in parallel on PC board.

物理特性

卷装规格

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
175	330	100	13	38,4	32,4	32	28	4	2	13,4	0,6

一般规格

核心材料:

Ferrite

重量:

6.7 g

包装:

175 per 13″ reel Plastic tape: 32 mm wide, 0.6 mm thick, 28 mm pocket spacing, 13.40 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 allowing parts to cool 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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