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78253/55JVC-R

更新时间：2024-09-18 13:03:47
品牌：MURATA
描述：SMPS Transformer, 1W, ROHS COMPLIANT

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78253/55JVC-R 概述

SMPS Transformer, 1W, ROHS COMPLIANT 变压器 SMPS 变压器

78253/55JVC-R 规格参数

是否Rohs认证： 符合生命周期：Active
包装说明：ROHS COMPLIANTReach Compliance Code：compliant
ECCN代码：EAR99风险等级：5.62
其他特性：TURNS RATIO: 1:1.33高度：6.35 mm
最大输入电压：5 VJESD-609代码：e3
长度：9.52 mm安装特点：SURFACE MOUNT
初级绕组数量：1次级绕组数量：1
最大工作频率：500 kHz最高工作温度：85 °C
最低工作温度：-40 °C输出电压 1：5 V
包装方法：TAPE & REEL物理尺寸：L9.52XB8.99XH6.35 (mm)
额定功率：1 W初级电感：335 µH
表面贴装：YES端子面层：Matte Tin (Sn)
变压器类型：SMPS TRANSFORMER宽度：8.99 mm
Base Number Matches：1

78253/55JVC-R 数据手册

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78253 Series  
s
MAX253 Compatible Converter Transformers  
SELECTION GUIDE  
Output  
Voltage  
Max. Output  
Current  
Isolation  
Voltage  
Input Voltage  
Turns  
Ratio  
Package  
Style  
Order Code  
V
V
mA  
VDC  
78253/35C  
78253/35MC  
78253/55C  
78253/55MC  
78253/35VC  
78253/35MVC  
78253/55VC  
78253/55MVC  
DIL  
SM  
DIL  
SM  
DIL  
SM  
DIL  
SM  
3.3  
5.0  
100  
1500  
1:2.27  
1:1.31  
1:2.14  
1:1.33  
5.0  
3.3  
5.0  
5.0  
5.0  
5.0  
200  
100  
200  
1500  
4000  
4000  
FEATURES  
nRoHS compliant  
nMaxim MAX253 compatible  
n3.3V and 5V versions  
nIsolation to 4kVDC  
ORDER CODE DETAILS  
Order Code  
Package Type  
Packaging Type  
Quantity  
78253/XXC  
78253/XXMC  
78253/XXMC-R  
6 Pin DIL  
6 Pin SM  
6 Pin SM  
Tube  
Tube  
50  
50  
nFrequency range to 500kHZ  
nToroidal construction  
nIndustry-standard pinout  
nUL 94 V-0 package materials  
nFully encapsulated  
Tape & Reel  
500  
78253/35(M)C CHARACTERISTICS  
Parameter  
Conditions  
Min.  
0.30  
1.60  
Typ.  
0.38  
2.00  
0.30  
30  
Max.  
0.46  
2.40  
1.00  
50  
Units  
mH  
mH  
μH  
Primary Inductance, LP  
Secondary Inductance, LS  
Leakage Inductance, LL  
Interwinding Capacitance, CWW  
Primary D.C. Resistance, RDC  
Volt-time Product, Et  
100kHz, 250mV  
100kHz, 250mV  
100kHz, 250mV  
100kHz, 250mV  
>0.1VDC  
pF  
nLow profile  
0.40  
35  
1.00  
Ω
Vμs  
nSurface mount option  
nIndustrial temperature range  
Pins 1/2 or 2/3  
30  
78253/55(M)C CHARACTERISTICS  
Parameter  
Conditions  
Min.  
0.60  
1.10  
Typ.  
0.83  
1.40  
0.35  
30  
Max.  
1.10  
1.70  
1.00  
50  
Units  
mH  
mH  
μH  
Primary Inductance, LP  
Secondary Inductance, LS  
Leakage Inductance, LL  
Interwinding Capacitance, CWW  
Primary D.C. Resistance, RDC  
Volt-time Product, Et  
100kHz, 250mV  
100kHz, 250mV  
100kHz, 250mV  
100kHz, 250mV  
>0.1VDC  
DESCRIPTION  
The 78253 series of converter transformers are  
specifically designed for use with the MAX253  
chip set to provide isolated power supplies. The  
5V version can supply 1W and the 3.3V version  
can supply 500mW. A centre tapped secondary  
winding allows for full bridge, half bridge or  
voltage doubling.  
pF  
0.70  
50  
1.50  
Ω
Vμs  
Pins 1/2 or 2/3  
40  
78253/35(M)VC CHARACTERISTICS  
Parameter  
Conditions  
Min.  
110  
550  
Typ.  
142  
710  
3.00  
4.20  
0.30  
22  
Max.  
185  
Units  
μH  
Primary Inductance, LP  
Secondary Inductance, LS  
Leakage Inductance, LL  
Interwinding Capacitance, CWW  
Primary D.C. Resistance, RDC  
Volt-time Product, Et  
100kHz, 20mV  
100kHz, 20mV  
100kHz, 250mV  
100kHz, 250mV  
>0.1VDC  
850  
μH  
Surface-mount parts  
5.00  
8.00  
0.50  
μH  
pF  
The surface-mount (M suffix) products are not  
recommended for new designs. For existing designs,  
however, Murata Power Solutions will continue to  
manufacture and fully support these parts.  
Ω
Vμs  
Pins 1/2 or 2/3  
18  
78253/55(M)VC CHARACTERISTICS  
For recommended alternatives please refer to the  
78253J Series datasheet.  
Parameter  
Conditions  
Min.  
190  
350  
Typ.  
240  
444  
5.20  
4.20  
0.40  
28  
Max.  
310  
Units  
μH  
Primary Inductance, LP  
Secondary Inductance, LS  
Leakage Inductance, LL  
Interwinding Capacitance, CWW  
Primary D.C. Resistance, RDC  
Volt-time Product, Et  
100kHz, 20mV  
100kHz, 20mV  
100kHz, 250mV  
100kHz, 250mV  
>0.1VDC  
540  
μH  
8.00  
8.00  
0.60  
μH  
pF  
Ω
Vμs  
Pins 1/2 or 2/3  
25  
All specifications typical at TA=25°C  
For full details go to  
www.murata-ps.com/rohs  
www.murata-ps.com/support  
KMP_78253C_D04 Page 1 of 5  
78253 Series  
MAX253 Compatible Converter Transformers  
ABSOLUTE MAXIMUM RATINGS  
-40°C to 85°C  
-50°C to 125°C  
300°C  
Operating free air temperature range  
Storage temperature range  
Lead Temperature 1.5mm from case for 10 seconds  
Peak current IPK  
400mA  
1500VDC  
Isolation voltage 78253/XX(M)C (flash tested for 1 second)  
Isolation voltage 78253/XX(M)VC (flash tested for 1 second)  
4000VDC  
PACKAGE SPECIFICATIONS  
MECHANICAL DIMENSIONS  
6 Pin DIL  
6 Pin SM  
0.5  
(1ꢀ.70ꢁ  
0.375  
0.375  
(9.5ꢀꢁ MAX  
(9.5ꢀꢁ MAX  
Top View  
Top View  
Primary  
Secondary  
Primary  
Secondary  
1
2
3
6
1
2
3
6
0.354  
(9.0ꢁ MAX  
0.354  
(9.0ꢁ MAX  
5
4
5
4
78253/35C  
XYYWW  
78253/55MC  
XYYWW  
0.ꢀ5  
(6.35ꢁ  
0.ꢀ5  
(6.35ꢁ  
0.135 0.0ꢀ  
(3.44 0.50ꢁ  
0.01ꢀ 0.30  
(0.008 0.ꢀ0ꢁ  
0.0ꢀ5 (0.63ꢁ  
0.0ꢀ1 (0.53ꢁ  
0.035  
(0.90ꢁ  
0.1  
(ꢀ.54ꢁ  
0.01ꢀ(0.30ꢁ  
0.008(0.ꢀ0ꢁ  
0.0ꢀ5 (0.63ꢁ  
0.0ꢀ1 (0.53ꢁ  
0.40  
(10.16ꢁ  
0.1 (ꢀ.54ꢁ  
Unless otherwise stated all dimensions in inches (mm) 0.01 (0.25).  
All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position.  
Package weight 1.0g Typ.  
RECOMMENDED FOOTPRINT DETAILS  
6 Pin DIL  
6 Pin SM  
0.10 (2.54)  
0.06 (1.60)  
0.10 (2.54)  
0.10 (2.54)  
+0.006 (0.15)  
-0.000 (0.00)  
Ø0.05 (1.20)  
0.04  
(1.00)  
0.45  
(11.50)  
Unless otherwise stated all dimensions in inches (mm) 0.01 (0.25).  
All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position.  
www.murata-ps.com/support  
KMP_78253C_D04 Page 2 of 5  
78253 Series  
MAX253 Compatible Converter Transformers  
TYPICAL CHARACTERISTICS (VOLTAGE CURVES)  
VOLTAGE CURVES  
10  
78253/35(M)C  
78253/55(M)C  
10  
8
6
4
8
6
4
2
0
2
0
80  
300  
400  
20  
40  
60  
100 120  
0
100  
200  
0
Output Current (mA)  
Output Current (mA)  
78253/35(M)VC  
78253/55(M)VC  
10  
10  
8
8
6
4
6
4
2
0
2
0
80  
20  
40  
60  
100  
0
100  
200  
300  
400  
0
Output Current (mA)  
Output Current (mA)  
EFFICIENCY CURVES  
78253/35(M)C  
78253/55(M)C  
100  
80  
100  
80  
60  
40  
60  
40  
20  
0
20  
0
0
100  
200  
120  
300  
80 100  
400  
20  
40  
60  
0
Output Current (mA)  
Output Current (mA)  
78253/35(M)VC  
78253/55(M)VC  
100  
80  
100  
80  
60  
40  
60  
40  
20  
0
20  
0
100  
0
100  
200  
300  
400  
80  
20  
40  
60  
0
Output Current (mA)  
Output Current (mA)  
All curves are derived from testing with the Maxim MAX235 IC using the circuit shown in application note MPAN-03 ( download at http://www.murata-ps.com/data/apnotes/mpan-03.pdf).  
www.murata-ps.com/support  
KMP_78253C_D04 Page 3 of 5  
78253 Series  
MAX253 Compatible Converter Transformers  
TYPICAL CHARACTERISTICS (VOLTAGE CURVES) continued  
VOLTAGE DEVIATION  
78253/55(M)C  
78253/35(M)C  
110  
105  
110  
105  
100  
95  
100  
95  
90  
90  
100  
50  
-50 -25  
0
75  
100  
25  
50  
-50 -25  
0
75  
25  
Temperature (°C)  
Temperature (°C)  
78253/35(M)VC  
78253/55(M)VC  
110  
110  
105  
105  
100  
95  
100  
95  
90  
90  
100  
50  
Temperature (°C)  
-50 -25  
0
75  
25  
25  
Temperature (°C)  
100  
50  
-50 -25  
0
75  
SOLDERING INFORMATION1  
Pin finish  
TECHNICAL NOTES  
ISOLATION VOLTAGE  
Matte tin  
REPEATED HIGH-VOLTAGE  
ISOLATION TESTING  
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Volt-  
age’, ‘Proof Voltage’, ‘Dielectric Withstand  
Voltage’ & ‘Isolation Test Voltage’ are all terms  
that relate to the same thing, a test voltage,  
applied for a specified time, across a compo-  
nent designed to provide electrical isolation, to  
verify the integrity of that isolation.  
300˚C for 10 seconds  
220˚C2  
Peak wave solder temperature  
Peak reflow temperature  
It is well known that repeated high-voltage  
isolation testing of a barrier component can  
actually degrade isolation capability, to a  
lesser or greater degree depending on ma-  
terials, construction and environment. This  
series has toroidal isolation transformers,  
with no additional insulation between pri-  
mary and secondary windings of enameled  
wire. While parts can be expected to with-  
stand several times the stated test voltage,  
the isolation capability does depend on the  
wire insulation. Any material, including this  
enamel (typically polyurethane) is suscep-  
tible to eventual chemical degradation when  
subject to very high applied voltages thus  
implying that the number of tests should be  
strictly limited. We therefore strongly advise  
against repeated high voltage isolation test-  
ing, but if it is absolutely required, that the  
voltage be reduced by 20% from specified  
test voltage.  
TUBE OUTLINE DIMENSIONS  
0.43  
(10.95)  
All products in this series are 100% production  
tested at their stated isolation voltage.  
0.16 (4.00)  
A question commonly asked is, “What is the  
continuous voltage that can be applied across  
the part in normal operation?”  
0.023 0.005  
(0.60 0.15)  
0.51  
(12.95)  
For a part holding no specific agency approv-  
als both input and output should normally be  
maintained within SELV limits i.e. less than  
42.4V peak, or 60VDC. The isolation test  
voltage represents a measure of immunity to  
transient voltages and the part should never  
be used as an element of a safety isolation  
system. The part could be expected to function  
correctly with several hundred volts offset  
applied continuously across the isolation bar-  
rier; but then the circuitry on both sides of the  
barrier must be regarded as operating at an  
unsafe voltage and further isolation/insulation  
systems must form a barrier between these  
circuits and any user-accessible circuitry ac-  
cording to safety standard requirements.  
0.22 (5.50)  
0.15  
(3.80)  
0.62 (15.70)  
Tube length: 18.3 0.08 (465 2). Tube quantity: 50.  
Tube material: Antistatic coated clear pvc.  
Unless otherwise stated all dimensions in inches(mm) 0.01 (0.25).  
This consideration equally applies to agency  
recognized parts rated for better than  
functional isolation where the wire enamel  
insulation is always supplemented by a  
further insulation system of physical spacing  
or barriers.  
All specifications typical at TA=25°C  
For further information, please visit www.murata-ps.com/rohs  
For high temperature reflow parts see 78253J series.  
1
2
www.murata-ps.com/support  
KMP_78253C_D04 Page 4 of 5  
78253 Series  
MAX253 Compatible Converter Transformers  
TAPE & REEL SPECIFICATIONS  
REEL OUTLINE DIMENSIONS  
*
2.36 (60) Min.  
Ø
Ø15.039 (382) Max.  
0.94-1.08 (23.9-27.4)  
0.53 (13.50)  
0.50 (12.80)  
Leader section  
15.7 (400) Min.  
3.9 (100)  
Min.  
0.059 (1.50)  
Min.  
1.20  
(30.4) Max.  
Goods  
enclosure  
section  
0.96 (24.4)  
1.04 (26.4)  
Trailer section  
6.3 (160) Min.  
Reel quantity: 500  
Unless otherwise stated all  
dimensions in inches (mm) 0.01(0.25).  
Ø0.80 (20.20) Min.  
*
Includes flange distortion at outer edge.  
Measured at hub.  
TAPE OUTLINE DIMENSIONS  
+0.004  
-0.000  
+0.10  
)
-0.00  
0.069 (1.75)  
0.157 (4.00)  
0.079 (2.00)  
0.059  
(1.50  
Cover tape  
0.283 (7.20)  
0.472 (12.00)  
0.369 (9.37)  
0.024 (0.60) Max.  
Direction of unreeling  
Unless otherwise stated all  
dimensions in inches (mm) 0.01(0.25).  
Murata Power Solutions, Inc.  
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.  
ISO 9001 and 14001 REGISTERED  
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other  
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply  
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without  
notice.  
© 2011 Murata Power Solutions, Inc.  
www.murata-ps.com/support  
KMP_78253C_D04 Page 5 of 5  

78253/55JVC-R 替代型号

型号 制造商 描述 替代类型 文档
78253/55MVC-R MURATA Pulse Transformer, GENERAL PURPOSE Application(s), 1:1.33, ROHS COMPLIANT 完全替代

78253/55JVC-R 相关器件

型号 制造商 描述 价格 文档
78253/55M CANDD MAX253 Compatible Converter Transformers 获取价格
78253/55MC MURATA MAX253 Compatible Converter Transformers 获取价格
78253/55MV CANDD MAX253 Compatible Converter Transformers 获取价格
78253/55MVC MURATA MAX253 Compatible Converter Transformers 获取价格
78253/55MVC-R MURATA Pulse Transformer, GENERAL PURPOSE Application(s), 1:1.33, ROHS COMPLIANT 获取价格
78253/55V CANDD MAX253 Compatible Converter Transformers 获取价格
78253/55VC MURATA MAX253 Compatible Converter Transformers 获取价格
7825335C MURATA MAX253 Compatible Converter Transformers 3.3V and 5V versions 获取价格
7825335MC MURATA MAX253 Compatible Converter Transformers 3.3V and 5V versions 获取价格
7825335MVC MURATA MAX253 Compatible Converter Transformers 3.3V and 5V versions 获取价格

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