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4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Features:
•Halogens free
•Current transfer ratio
(CTR: 50~600% at I
• High isolation voltage between input
and output (Viso=3750 V rms )
• Compact 4 Pin SOP with a 2.0 mm profile
•Pb free and RoHS compliant.
• UL approved (No. E214129)
• VDE approved (No. 132249)
• SEMKO approved
• NEMKO approved
• DEMKO approved
• FIMKO approved
• CSA approved (No. 1408633)
Description
=5mA, VCE =5V)
F
Schematic
The EL357N-G series contains an infrared emitting diode,
optically coupled to a phototransistor detector.
The devices in a 4-pin small outline SMD package.
Applications
•DC-DC Converters
• Programmable controllers
• Telecommunication equipments
• Signal transmission between circuits of different potentials and impedances
Pin Configuration
1. Anode
2. Cathode
3. Emitter
4. Collector
Everlight Electronics Co., Ltd. 1 http://www.everlight.com
Document No
Revision : 4
LifecyclePhase:
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
Expired Period: Forever
Page 2
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Absolute Maximum Ratings (Ta=25°C)
Parameter Symbol Rating Unit
Forward current
Peak forward current (1us, pulse)
Input
Reverse voltage
Power dissipation
Derating factor (about Ta=100°C)
Power dissipation
Derating factor (about Ta=80°C)
Output
Total power dissipation
Isolation voltage
Operating temperature
Collector current
Collector-Emitter voltage
Emitter-Collector voltage
*1
V
V
P
T
V
I
F
I
FP
V
P
P
I
C
CEO
ECO
TOT
ISO
OPR
50 mA
1 A
R
6 V
70 mW
D
2.9 mW/°C
150 mW
C
3.7 mW/°C
50 mA
80 V
7 V
200 mW
3750 V rms
-55 ~ +110 °C
Storage temperature
Soldering temperature
*2
T
STG
T
SOL
-55 ~ +125 °C
260 °C
Notes
*1
AC for 1 minute, R.H.= 40 ~ 60% R.H. In this test, pins 1 & 2 are shorted together, and pins 3 & 4
are shorted together.
*2 For 10 seconds.
Everlight Electronics Co., Ltd. 2 http://www.everlight.com
Document No
Revision : 4
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
LifecyclePhase:
Expired Period: Forever
Page 3
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Electrical Characteristics (Ta=25°C unless specified otherwise)
Input
Parameter Symbol Min. Typ.* Max. Unit Condition
Forward voltage
Reverse current
Input capacitance
V
F
I
R
C
in
- 1.2 1.4 V
- - 10 µA
- 30 250 pF V = 0, f = 1kHz
Output
Parameter Symbol Min. Typ.* Max. Unit Condition
Collector-Emitter dark
current
Collector-Emitter
breakdown voltage
Emitter-Collector
breakdown voltage
I
BV
BV
CEO
CEO
ECO
- - 100 nA
80 - -
7 - - V
Transfer Characteristics (Ta=25°C unless specified otherwise)
Parameter Symbol Min. Typ.* Max. Unit Condition
EL357N 50 - 600
EL357NA 80 - 160
EL357NB 130 - 260
Current
Transfer ratio
EL357NC 200 - 400
EL357ND 300 - 600
CTR
V
%
I
= 20mA
F
= 4V
V
R
V
= 20V, IF= 0mA
CE
= 0.1mA
I
C
= 0.01mA
I
E
= 5mA ,VCE= 5V
I
F
EL357NE 100 - 200
EL357NF
Collector-Emitter
V
saturation voltage
Isolation resistance
Floating capacitance
CE(sat)
R
IO
C
IO
Cut-off frequency fc - 80 Rise time
Fall time
t
r
t
f
150 - 300
- 0.1 0.2
10
5×10
- -
- 0.6 1.0 pF
- 3 18
- 4 18
V
kHz
µs
µs
= 20mA ,IC= 1mA
I
F
VIO = 500Vdc,
40~60% R.H.
= 0, f = 1MHz
V
IO
= 5V, IC= 2mA
V
CE
= 100, -3dB
R
L
V
= 2V, IC= 2mA,
CE
= 100
R
L
* Typical values at Ta = 25°C
Everlight Electronics Co., Ltd. 3 http://www.everlight.com
Document No
Revision : 4
LifecyclePhase:
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
Expired Period: Forever
Page 4
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Typical Performance Curves
Everlight Electronics Co., Ltd. 4 http://www.everlight.com
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Revision : 4
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：DPC-0000014 Rev. 4 December 28, 2009
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Page 5
F
CRL
IN
V
CC
ftrtoff
t
on
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 5 http://www.everlight.com
Document No
Revision : 4
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I
Input
R
：DPC-0000014 Rev. 4 December 28, 2009
I
Output
Figure 10. Switching Time Test Circuit & Waveforms
Input
Pulse
Output
Pulse
10%
90%
t
Release Date:2010-01-15 13:27:26.0
Expired Period: Forever
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4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Order Information
Part Number
EL357NX(Y)-VG
Note
357N = Part No.
X = CTR Rank (A, B, C, D, E, For none)
Y = Tape and reel option (TA, TB or none).
V = VDE (optional)
G = Halogen free
Option Description Packing quantity
None Standard SMD option 100 units per tube
-V Standard SMD option + VDE 100 units per tube
(TA) TA Tape & reel option 3000 units per reel
(TB) TB Tape & reel option 3000 units per reel
(TA)-V TA Tape & reel option + VDE 3000 units per reel
(TB)-V TB Tape & reel option + VDE 3000 units per reel
Everlight Electronics Co., Ltd. 6 http://www.everlight.com
Document No
Revision : 4
LifecyclePhase:
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
Expired Period: Forever
Page 7
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Package Drawing
(Dimensions in mm)
Recommended pad layout for surface mount leadform
Everlight Electronics Co., Ltd. 7 http://www.everlight.com
Document No
Revision : 4
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
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Expired Period: Forever
Page 8
RYWWV
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Device Marking
EL
357N
Notes
EL denotes Everlight
357N denotes Device Number
R denotes CTR Rank (A, B, C, D, E, F or none)
Y denotes 1 digit Year code
WW denotes 2 digit Week code
V denotes VDE (optional)
Everlight Electronics Co., Ltd. 8 http://www.everlight.com
Document No
Revision : 4
LifecyclePhase:
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
Expired Period: Forever
Page 9
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Tape & Reel Packing Specifications
Option TA Option TB
Direction of feed from reel Direction of feed from reel
Tape dimensions
Dimension No.
Dimension (mm) 4.4 ± 0.1 7.4 ± 0.1 1.5 + 0.1/-0 1.5 ± 0.1 1.75± 0.1 7.5 ± 0.1
Dimension No.
Dimension (mm) 4.0 ± 0.15 8.0 ± 0.1 2.0 ± 0.1 0.25 ± 0.03 16.0 ± 0.2 2.4 ± 0.1
Everlight Electronics Co., Ltd. 9 http://www.everlight.com
Document No
：DPC-0000014 Rev. 4 December 28, 2009
Revision : 4
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A B Do D1 E F
Po P1 P2 t W K
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Page 10
150C
1-3 C/Sec Max
70 – 170 Sec
200C
217C
>255
C
(30s Max
)
1-3 C/Sec Max
60 – 14
0 Sec
260 C
(peak)
TIME (S)
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
Solder Reflow Temperature Profile
Everlight Electronics Co., Ltd. 10 http://www.everlight.com
Document No
Revision : 4
LifecyclePhase:
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
Expired Period: Forever
Page 11
4 PIN ULTRA SMALL SOP
EL357N-G Series
PHOTOTRANSISTOR PHOTOCOUPLER
DISCLAIMER
1. The specifications in this datasheet may be changed without notice. EVERLIGHT reserves the authority
on material change for above specification.
2. When using this product, please observe the absolute maximum ratings and the instructions for use as
outlined in this datasheet. EVERLIGHT assumes no responsibility for any damage resulting from use of the
product which does not comply with the absolute maximum ratings and the instructions included in this
datasheet.
3. These specification sheets include materials protected under copyright of EVERLIGHT. Reproduction in
any form is prohibited without the specific consent of EVERLIGHT.
Everlight Electronics Co., Ltd. 11 http://www.everlight.com
Document No
Revision : 4
LifecyclePhase:
：DPC-0000014 Rev. 4 December 28, 2009
Release Date:2010-01-15 13:27:26.0
Expired Period: Forever
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