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78253J Series
MAX253 Compatible Converter SM Transformers
SELECTION GUIDE
FEATURES
n J-STD-020D reflow
n RoHS compliant
Order Code
78253/35JC
78253/55JC
78253/35JVC
78253/55JVC
ORDER CODE DETAILS
Order Code
78253/XXJC
78253/XXJC-R
Input Voltage
V
3.3
5.0
3.3
5.0
Package Type
6 Pin SM
6 Pin SM
Output
Voltage
V
5.0
5.0
5.0
5.0
Max. Output
Current
mA
100
200
100
200
Packaging Type
Tube
Tape & Reel
Isolation
Voltage
V DC
1500
1500
4000
4000
Turns
Ratio
1:2.27
1:1.31
1:2.14
1:1.33
Quantity
50
500
n Maxim MAX253 compatible
n 3.3V and 5V versions
n Isolation to 4kV DC
n Frequency range to 500kHZ
n Toroidal construction
n Industry-standard pinout
n UL 94 V-0 package materials
n Low profile
n Industrial temperature range
DESCRIPTION
The 78253 series of converter transformers are
78253/35JC CHARACTERISTIC S
Parameter
Primary Inductance, L P
Secondary Inductance, L S
Leakage Inductance, L L
Interwinding Capacitance, C WW
Primary D.C. Resistance, R DC
Volt-time Product, Et
78253/55JC CHARACTERISTIC S
Parameter
Primary Inductance, L P
Secondary Inductance, L S
Leakage Inductance, L L
Interwinding Capacitance, C WW
Primary D.C. Resistance, R DC
Volt-time Product, Et
Conditions
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
>0.1VDC
Pins 1/2 or 2/3
Conditions
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
>0.1VDC
Pins 1/2 or 2/3
Min.
0.27
1.60
30
Min.
0.57
1.10
40
Typ.
0.36
2.00
0.32
24
0.5
49
Typ.
0.83
1.40
0.51
30
0.70
70
Max.
0.50
2.40
1.00
50
1.00
Max.
1.10
1.70
1.00
50
1.50
Units
mH
mH
μH
pF
?
Vμs
Units
mH
mH
μH
pF
?
Vμs
specifically designed for use with the MAX253
chip set to provide isolated power supplies. The
5V input version can supply 1W and the 3.3V
input version can supply 500mW. A centre tapped
secondary winding allows for full bridge, half
bridge or voltage doubling.
For through hole versions see 78253 series
datasheet.
78253/35JVC CHARACTERISTICS
Parameter Conditions
Primary Inductance, L P 100kHz, 20mV
Secondary Inductance, L S 100kHz, 20mV
Leakage Inductance, L L 100kHz, 250mV
Interwinding Capacitance, C WW 100kHz, 250mV
Primary D.C. Resistance, R DC >0.1VDC
Volt-time Product, Et Pins 1/2 or 2/3
Min.
110
550
18
Typ.
142
710
3.46
2
0.30
30
Max.
203
850
5.00
8.00
0.50
Units
μH
μH
μH
pF
?
Vμs
78253/55JVC CHARACTERISTICS
Parameter
Primary Inductance, L P
Secondary Inductance, L S
Leakage Inductance, L L
Interwinding Capacitance, C WW
Primary D.C. Resistance, R DC
Volt-time Product, Et
Conditions
100kHz, 20mV
100kHz, 20mV
100kHz, 250mV
100kHz, 250mV
>0.1VDC
Pins 1/2 or 2/3
Min.
170
350
25
Typ.
240
444
6.28
3.4
0.40
37
Max.
335
540
8.00
8.00
0.60
Units
μH
μH
μH
pF
?
Vμs
All specifications typical at T A =25°C
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
Technical enquiries email: mk@murata-ps.com, tel: +44 (0)1908 615232
2012-06-01 KMP_78253JC_A02 Page 1 of 5
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相关PDF资料
78253/55MVC-R
XFRMR 5V IN/OUT MAX 253 SMD
785A02000
CAP SWITCH BLACK
788310-1
CONN EDGE 110DL PS ZIF .100 GOLD
7914H-1-000
SWITCH TACTILE SPST-NO 0.1A 24V
798D02000
BLACK CAP FOR FP SERIES
799288-1
CONN IC SOCKET 16POS DIP
7A-49.152MAAJ-T
CRYSTAL 49.152 MHZ 18 PF SMD
7AC12
SWITCH DOOR ROD SPST 1A SOLDER
相关代理商/技术参数
78253/55JVC-R
功能描述:电源变压器 5Vin 5Vout 200mA 4000VDC 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
78253/55M
功能描述:电源变压器 253 SMT CNVR XFRMR
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
78253/55MC
功能描述:电源变压器 5Vin 5Vout 200mA 1500Vdc 1:1.31 turn
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
78253/55MC
制造商:Murata Power Solutions 功能描述:Toroidal Inductor 制造商:Murata Power Solutions 功能描述:TOROIDAL INDUCTOR, 1.1MH, 200mA
78253/55MC-R
功能描述:电源变压器 Max253TX5vinput5v outD 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
78253/55M-R
制造商:Murata Power Solutions 功能描述:Pulse Transformer 1:1.31 1500VDC 1.5Ohm Prim. DCR 50pF 50Vus Surface Mount
78253/55MV
功能描述:电源变压器 5.5V CONVTR XFMR
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
78253/55MVC
功能描述:电源变压器 5Vin 5Vout 200mA 4000Vdc 1:1.33 turn 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