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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

Q4438-BL Surface Mount

Flyback Regulator Transformer

符合RoHS
  • 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 $5.25
250 $4.20
500 $2.68
1000 $2.08
2500 $1.79
5000 $1.63

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
Sec1 Sec2
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 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
Pri Sec1 Sec2 Pri : Sec1 : Sec2
Q4438-BL 65.0 57.0 0.065 0.150 0.150 3.0 1 : 1.2 : 1.2 499.5 500
注释
  1. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  2. Leakage inductance measured across the primary at 0.10 Vrms, 100 kHz.
  3. 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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

原理图

q4438s-(1).gif

物理特性

lm258smd.gif
dims_inches_mm.gif

一般规格

核心材料:
Ferrite
重量:
8.6 g
包装:
49 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.