3D Model Datasheet

Q4438-BL Surface Mount

Flyback Regulator Transformer

For flyback regulator applications using LM258X SIMPLE SWITCHER^®
Recommended and approved by National Semiconductor
Custom versions available

立即购买:

计数	单价
1	$5.57
250	$4.77
500	$3.05
1000	$2.37
2500	$2.04
5000	$1.86

对于大批量采购或非库存产品，点击这里请求报价。

. 现货，可今天发货.

索取样品:

典型应用

与Texas Instruments LM258X (T6)一起使用

输入电压	输出		功率	Fsw
输入电压	Sec1	Sec2	功率	Fsw
18 V — 36 V	12 V , 0.63 A	12 V , 0.63 A	15.1 W	100 kHz

规格

Electrical specifications at 25°C.

零件号 (Hover for schematics)	0A时的电感 (µH) (公差: ±15%)	最小电感 3 A (µH)	DCR max (Ω) 1			最大漏电感 (µH) 2	匝数比	电压-时间乘积 (V-µs)	隔离电压 (Vrms) 3
零件号 (Hover for schematics)	0A时的电感 (µH) (公差: ±15%)	最小电感 3 A (µH)	Pri	Sec1	Sec2	最大漏电感 (µH) 2	Pri : Sec1 : Sec2	电压-时间乘积 (V-µs)	隔离电压 (Vrms) 3
Q4438-BL	65.0	57.0	0.065	0.150	0.150	3.0	1 : 1.2 : 1.2	499.5	500

注释

DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Leakage inductance measured across the primary at 0.10 Vrms, 100 kHz.
500 Vrms isolation between windings.

端子:

RoHS-compliant – 260°C compatible. Tin-silver over tin over copper clad steel.
COTS Plus tin-silver-copper and tin-lead terminations available.

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 +85°C
Tray packaging: –40°C to +80°C

故障率（FIT）/平均故障间隔时间（MTBF）:

See FIT/MTBF Calculations

原理图

物理特性

一般规格

核心材料:

Ferrite

重量:

8.6 g

包装:

42 parts per tray

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 with pure water or alcohol only. More info.

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