參數資料
型號: 78250MV
廠商: CD TECHNOLOGIES INC
元件分類: 脈沖/數據通信變壓器
英文描述: Converter Transformers
中文描述: DATACOM TRANSFORMER FOR GENERAL PURPOSE APPLICATION(S)
封裝: SURFACE MOUNT, 6 PIN
文件頁數: 1/2頁
文件大小: 130K
代理商: 78250MV
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
相關PDF資料
PDF描述
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