EPM0310SJ Datasheet
■Features
1.Easy to design compact AC/DC due to small number of external components
2.Enables significant reduction in power consumption of no-load and light load
3.Corresponding world wide input and PFC output voltage (Vin:DC110V~450V)
4.Unique Tamura design insures significant reduction in ‘buzz’
under light-load conditions for lower noise level
5.Reinforced insulation
■Applications
・Industrial equipment
・Information processing equipment
・AV equipment
・Home electric appliances
・Other standby power supplies and compact power supplies
■Certified safety standards Certified input voltage range
UL60950-1, CSA C22.2 No.60950-1  (E132244 …DC110-340V
IEC60950-1(CB), IEC60065(CB)
■Applicable safety standards
Applicable input voltage range
UL/CSA/IEC/EN60950-1 …DC110-340V
UL/CSA/IEC/EN60065
…DC110-340V
IEC/EN60335-1 …DC110-450V
■Application circuit
Method to select external parts for input rectification and smoothing as well as output smoothing is supported by the application note.
TAMURA CORPORATION
Rev.F Sep, 2016
Power Modules (Power Supplies with Ultra-low Standby Power Consumption)
EPM0310SJ Datasheet
■Input-output condition
Item Specification Conditions・Note
Input voltage range DC110~450V Average voltage
(DC50V~450V) (Refer to the Input voltage derating curve)
Maximum input voltage 450V or less Including peak value
80V or more
Ripple voltage of the AC input rectified
Rated input voltage DC140V, DC340V
Rated output voltage 3.3V
Rated load current   1A
■Electrical specification  Ta=25℃
Item Specification Conditions・Note
Efficiency 70% or more Rated input voltage
Rated output current
Output voltage tolerance ±5%
Line regulation
50mV or less Input voltage DC110V~450V
Load regulation 100mV or less Output current 0~1A
No-load power 80mW or less Rated input voltage
Ripple 60mVp-p or less
Rated input voltage
Ripple noise
100mVp-p or less
Rated output current
Measurement circuit
E1 : DC power supply
C101 : 450BXC22M (RUBYCON)
W1 : Power meter WT210 (YOKOGAWA)
C102 : CD65ZU2GA681M (TDK)
RL1: Electronic load C201 : 10ZLG680M (RUBYCON)
V1 : Voltmeter Class 0.5 C202 : 10ZLG680M (RUBYCON)
P1 : Differential probe DP-100(KG) C203 : 25ZLG47M (RUBYCON)
LM1: Ripple noize meter RM-103(KG)
C204 : 50F2D104K (RUBYCON)
L201 : PJ5H-2R2M (KORIN )
TAMURA CORPORATION
Rev.F Sep, 2016
Input ripple voltage lower limit
C101
N.C.
12
10
11
9
N.C.
Module
Vcc
VccW
-DC IN
+DC IN
-DC OUT
+DC OUT
L201
C201
5
C202
SecW
6
7
4
8N.C.
N.C.
14 Drain
N.C.
RL1
E1 W1
V1
P1 LM1
C102
C203
C204
150mm
150mm
N.C.
N.C.
N.C.
EPM0310SJ Datasheet
■Protection
Item Specification Conditions・Note
Overcurrent protection
1.05A or more
Hiccup mode
Overvoltage protection 3.5~6.0V Latch off
Overheat protection Latch off
■Insulation
Item Specification Conditions・Note
Dielectric withstand voltage AC3.75kV 1min Cutoff 2mA
(Between Pri-Sec)
Insulation resistance
100MΩ or more
DC500V
(Between Pri-Sec)
■Environmental conditions
Item Specification Conditions・Note
Operation temperature -20℃~80℃ Refer to the Ambient temperature derating curve
Operating humidity 20~95%RH
(No condensation)
Storage temperature
-25℃~85℃
Storage humidit 5~95%RH
(No condensation)
■Ambient temperature derating curve ■Input voltage derating curve
Reduce the load current according to the following
Reduce the load current according to the following
temperature derating table.
input voltage derating table.
TAMURA CORPORATION
Rev.F Sep, 2016
Input voltage(Vdc)
50 60
20
40
80
60
100
70 80 90 100 120110
0
Load factor(%)
Ambient Temperature()
-20 -10
20
40
80
60
100
0 10 20 30 70605040 80
0
Load factor(%)
EPM0310SJ Datasheet
■Typical characteristics Ta=25℃
TAMURA CORPORATION
Rev.F Sep, 2016
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
100 150 200 250 300 350 400 450
Output Voltage [V]
Input Voltage VDC [V]
Line regulation
No load (0A)
Rated load (1A)
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
010 20 30 40 50 60 70 80 90 100
Input Power [W]
Output Current [mA]
Input power (at light load)
DC140V
DC340V
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
0 100 200 300 400 500 600 700 800 900 1000
Output Voltage [V]
Output Current [mA]
Load regulation
DC140V
DC340V
0
5
10
15
20
25
30
35
40
45
50
100 150 200 250 300 350 400 450
Input Power [mW]
Input Voltage VDC [V]
Input power (at no load)
0
10
20
30
40
50
60
70
80
90
0 100 200 300 400 500 600 700 800 900 1000
Efficiency [%]
Output Current [mA]
Efficiency
DC140V
DC340V
EPM0310SJ Datasheet
■Outline dimensional drawing
Unit:mm
TAMURA CORPORATION
Rev.F Sep, 2016
EPM0310SJ Datasheet
■Recommended hole diameter and land size
Unit:mm
Component side
■Terminal function and connection
Secondaries
No terminal
No terminal
No terminal
Non-contact terminal
※Don't connect with other circuits.
Output terminal (+)
Non-contact terminal
※Don't connect with other circuits.
Output terminal (-)
Primaries
Non-contact terminal
※Don't connect with other circuits.
Non-contact terminal
※Don't connect with other circuits.
DC voltage input terminal (-)
Terminal for start-up time adjustment
DC voltage input terminal (+)
No terminal
Terminal for noise adjustment
TAMURA CORPORATION
Rev.F Sep, 2016
14
Drain
Name
Explanation of terminals
Name
Explanation of terminals
11
Vcc
12
+DC IN
N.C.
13
8
9
3
7
-DC OUT
4
SecW
5
+DC OUT
6
Pin No.
1
2
Pin No.
The round pulling out figure is a pin
numbering.
N.C.
VccW
10
-DC IN
EPM0310SJ Datasheet
■Application circuit example
D101 Diode D1UBA80
SHINDENGEN
L101 Inductor LU-8S-V223
KORIN
L201 Inductor PJ5H-2R2M
KORIN
C101
Capacitor
LE104-MX OKAYA
C102
Capacitor
450BXC15M
RUBYCON
C103
Capacitor
CD65ZU2GA681M TDK
C201
Capacitor
10ZLG680M RUBYCON
C202
Capacitor
10ZLG680M RUBYCON
F101 Fuse FIH 250V 1.6A NIPPON-SEISEN
※Mount the fuse on the input Live side to ensure safety without fail.
Recommended parts:FIH 250V 1.6A~2.5A/NIPPON-SEISEN
※Depend on the applying safety standard, please add the discharge resistance in paralell with C101.
TAMURA CORPORATION
Rev.F Sep, 2016
Part No.
Manufacturer
Symbol
Description
D101
L101
N
L
AC85VAC276V (50/60Hz)
F101
C101 C102
N.C.
12
10
11
14
9
N.C.
EPM module
Drain
Vcc
VccW
DC IN
DC IN
-DC OUT
+DC OUT
C103
L201
C201
5
C202
6
7
4
8N.C.
SecW
+DC OUT
-DC OUT
N.C.N.C.
N.C.
N.C.
N.C.
EPM0310SJ Datasheet
■Usage cautions
Always mount fuse on the Live side of input for ensuring safety because the fuse is not built-in the product.
Please select the fuse considering conditions such as steady current, inrush current, and ambient temperature at your own responsibility.
※Recommended parts: FIH 250V 1.6A~2.5A / NIPPON-SEISEN
When using a fuse having large rated current or high capacity input electrolytic condenser, by combining another
converter and input line and input electrolytic condenser, fuse may not blow off in the case of abnormality.
Do not combine high voltage line and fuse.
■Important notice
The content of this document is subject to change without prior notice for the purpose of improvements, etc.
Ensure that you are in possession of the most up-to-date information when using this product.
The operation examples and circuit examples shown in this document are for reference purposes only, and TAMURA Corporation disclaims
all responsibility for any violations of industrial property rights, intellectual property rights and any other rights owned by TAMURA Corporation
or third parties that these may entail.
The circuit examples and part constants listed in this document are provided as reference for the verification of
characteristics. You are to perform design, verification, and judgment at your own responsibility, taking into account
the various conditions.
TAMURA Corporation constantly strives to improve quality and reliability, but malfunction or failures are bound to occur with some
probability in power products. To ensure that failures do not cause accidents resulting in injury or death, fire accidents, social damage,
and so on, you are to thoroughly verify the safety of their designs in devices and/or systems, at your own responsibility.
This product is intended for use in consumer electronics (electric home appliances, business equipment, Information equipment, communication
terminal equipment, measuring devices, and so on.) If considering use of this product in equipment or devices that require high reliability
(medical devices, transportation equipment, traffic signal control equipment, fire and crime prevention equipment, aeronautics and space
devices, nuclear power control, fuel control, in-vehicle equipment, safety devices, and so on), please consult a TAMURA sales representative
in advance. Do not use this product for such applications without written permission from TAMURA Corporation.
This product is intended for use in environments where consumer electronics are commonly used.
It is not designed for use in special environments such as listed below, and if such use is considered,
you are to perform thorough safety and reliability checks at your own responsibility.
Use in liquids such as water, oil, chemical solutions, or organic solvents, and use in locations
where the product will be exposed to such liquids.
Use that involves exposure to direct sunlight, outdoor exposure, or dusty conditions.
Use in locations where corrosive gases such as salt air, C12, H2S, NH3, SO2, or NO2, are present.
Use in environments with strong static electricity or electromagnetic radiation.
Use that involves placing inflammable material next to the product.
Use of this product either sealed with a resin filling or coated with resin.
Use of water or a water soluble detergent for flux cleaning.
Use in locations where condensation is liable to occur.
This product is not designed to resist radiation.
This product is not designed to be connected in parallel.
Do not operate this product in a parallel, or N+1 redundant configuration.
TAMURA CORPORATION
Rev.F Sep, 2016
EPM0310SJ Datasheet
Do not use or otherwise make available the TAMURA products or the technology described in this document for any military purposes,
including without limitation, for the design, development, use, stockpiling or manufacturing of mass destruction weapons
(e.g. nuclear, chemical, or biological weapons or missile technology products).
When exporting and re-exporting the products or technology described in this document, you should comply with the applicable export
control laws and regulations and follow the procedures required by such laws and regulations including, without limitation,
Japan -Foreign Exchange and Foreign Trade Control Law and U.S.- Export Administration Regulations.
The TAMURA products and related technology should not be used for or incorporated into any products or systems whose manufacture,
use, or sale is prohibited under any applicable domestic or foreign laws or regulations.
Please contact your TAMURA sales office for details as to environmental matters such as the RoHS compatibility of product.
Please use TAMURA products in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,
including without limitation, the EU RoHS Directive.
TAMURA assumes no liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations.
TAMURAassumes no liability fordamages or lossesincurredbyyouorthirdpartiesasaresultofunauthorizeduseof
TAMURAproducts.
This document and any information herein may not be reproduced in whole or in part without prior written permission from TAMURA.
TAMURA CORPORATION
Rev.F Sep, 2016