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参数资料
| 型号： | 78250 |
| 厂商： | CD TECHNOLOGIES INC |
| 元件分类： | 脉冲/数据通信变压器 |
| 英文描述： | Converter Transformers |
| 中文描述： | DATACOM TRANSFORMER FOR GENERAL PURPOSE APPLICATION(S) |
| 封装： | DIP-6 |
| 文件页数： | 1/2页 |
| 文件大小： | 130K |
| 代理商： | 78250 |
FEATURES
I
Maxim Compatible
I
Isolation to 4kV
I
Surface Mount Options
I
Toroidal Construction
I
Standard Pinout
I
UL 94V-0 Package Material
I
Fully Encapsulated
I
Low Profile
I
Industrial Temperature Range
DESCRIPTION
The 78250 series of converter transformers
are specifically designed for use with Maxim
chipsets to provide isolated RS232 interfaces.
Carefully controlled turns ratios ensure
consistent performance whilst a toroidal
construction minimises EMI. The surface
mount devices are fully compatible with
CECC00802 to 280°C which allows them to
be placed and reflowed with IC’s thus
reducing time and cost in production.
SELECTION GUIDE 78250/78250M
Parameter
Conditions
MIN
TYP
MAX
Units
Primary Inductance, L
P
10kHz, 100mV
1.0
2.0
2.5
mH
Leakage Inductance, L
L
100kHz, 100mV
2.0
3.0
μH
Interwinding Capacitance, C
WW
100kHz, 100mV
69
90
pF
D.C. Resistance, R
DC
<0.1VDC
1.0
2.0
Volt-time Product, E
T
5kHz, 5V
50
Vμs
SELECTION GUIDE 78250V/78250MV
Parameter
Conditions
MIN
TYP
MAX
Units
Primary Inductance, L
P
10kHz, 100mV
1.0
2.0
2.5
mH
Leakage Inductance, L
L
100kHz, 100mV
35
40
μH
Interwinding Capacitance, C
WW
100kHz, 100mV
9
12
pF
D.C. Resistance, R
DC
<0.1VDC
1.4
1.8
Volt-time Product, E
T
5kHz, 5V
50
Vμs
Operating free air temperature range
Storage temperature range
Lead Temperature 1.5mm from case for 10 seconds
Peak current I
PK
Isolation voltage 78250(M) (flash tested for 1 second)
Isolation voltage 78250V(M) (flash tested for 1 second)
–40°C to 85°C
–50°C to 125°C
300°C
300mA
1500Vrms
4000Vrms
ABSOLUTE MAXIMUM RATINGS
All specifications typical at T
A
= 2 5 C
78250 SERIES
Converter Transformers
www.dc-dc.com
相关PDF资料 |
PDF描述 |
|---|---|
| 78250M | Converter Transformers |
| 78250MV | Converter Transformers |
| 78250V | Converter Transformers |
| 78253 | MAX253 Compatible Converter Transformers |
| 784218A | MOS INTEGRATED CIRCUIT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 78-250/4068 | 制造商:Orbis 功能描述:WATER PUMP PLIERS |
| 78250C | 功能描述:电源变压器 2mH 69pF 6 pin DIL RoHS:否 制造商:Triad Magnetics 功率额定值:12 VA 初级电压额定值:115 V / 230 V 次级电压额定值:12 V / 24 V 安装风格:SMD/SMT 一次绕组:Dual Primary Winding 二次绕组:Dual Secondary Winding 长度:2.5 in 宽度:2 in 高度:1.062 in |
| 78250C | 制造商:Murata Power Solutions 功能描述:TOROIDAL TRANSFORMER |
| 78250JC | 功能描述:电源变压器 2mH 0.6uH 48pF 1:1 turns 6Pin SMT RoHS:否 制造商:Triad Magnetics 功率额定值:12 VA 初级电压额定值:115 V / 230 V 次级电压额定值:12 V / 24 V 安装风格:SMD/SMT 一次绕组:Dual Primary Winding 二次绕组:Dual Secondary Winding 长度:2.5 in 宽度:2 in 高度:1.062 in |
| 78250JC-R | 功能描述:电源变压器 2mH 0.6uH 48pF 1:1 turns 6Pin SMT RoHS:否 制造商:Triad Magnetics 功率额定值:12 VA 初级电压额定值:115 V / 230 V 次级电压额定值:12 V / 24 V 安装风格:SMD/SMT 一次绕组:Dual Primary Winding 二次绕组:Dual Secondary Winding 长度:2.5 in 宽度:2 in 高度:1.062 in |
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