LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 1 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Features:
•Halogens free
•Current transfer ratio
(CTR: 50~600% at IF =5mA, VCE =5V)
• 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
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
Schematic
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 2 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Absolute Maximum Ratings (Ta=25°C)
Parameter Symbol Rating Unit
Forward current IF50 mA
Peak forward current (1us, pulse) IFP 1 A
Reverse voltage VR6 V
70 mW
Input
Power dissipation
Derating factor (about Ta=100°C) PD2.9 mW/°C
150 mW
Power dissipation
Derating factor (about Ta=80°C) PC3.7 mW/°C
Collector current IC50 mA
Collector-Emitter voltage VCEO 80 V
Output
Emitter-Collector voltage VECO 7 V
Total power dissipation PTOT 200 mW
Isolation voltage *1 VISO 3750 V rms
Operating temperature TOPR -55 ~ +110 °C
Storage temperature TSTG -55 ~ +125 °C
Soldering temperature *2 TSOL 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.
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 3 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Electrical Characteristics (Ta=25°C unless specified otherwise)
Input Parameter Symbol Min. Typ.* Max. Unit Condition
Forward voltage VF- 1.2 1.4 V IF= 20mA
Reverse current IR- - 10 µA VR= 4V
Input capacitance Cin - 30 250 pF V = 0, f = 1kHz
Output Parameter Symbol Min. Typ.* Max. Unit Condition
Collector-Emitter dark
current ICEO - - 100 nA VCE = 20V, IF= 0mA
Collector-Emitter
breakdown voltage BVCEO 80 - - VIC= 0.1mA
Emitter-Collector
breakdown voltage BVECO 7 - - V IE= 0.01mA
Transfer Characteristics (Ta=25°C unless specified otherwise)
Parameter Symbol Min. Typ.* Max. Unit Condition
EL357N 50 - 600
EL357NA 80 - 160
EL357NB 130 - 260
EL357NC 200 - 400
EL357ND 300 - 600
EL357NE 100 - 200
Current
Transfer ratio
EL357NF
CTR
150 - 300
%IF= 5mA ,VCE = 5V
Collector-Emitter
saturation voltage VCE(sat) - 0.1 0.2 VIF = 20mA ,IC= 1mA
Isolation resistance RIO 5×1010 - - VIO = 500Vdc,
40~60% R.H.
Floating capacitance CIO - 0.6 1.0 pF VIO = 0, f = 1MHz
Cut-off frequency fc - 80 - kHz VCE = 5V, IC= 2mA
RL= 100, -3dB
Rise time tr- 3 18 µs
Fall time tf- 4 18 µs
VCE = 2V, IC= 2mA,
RL= 100
* Typical values at Ta = 25°C
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 4 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Typical Performance Curves
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 5 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Figure 10. Switching Time Test Circuit & Waveforms
I
F
I
C
R
L
R
IN
V
CC
Output
Input
Input
Pulse
Output
Pulse
10%
90%
t
f
t
r
t
t
on
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 6 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
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
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 7 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Package Drawing
(Dimensions in mm)
Recommended pad layout for surface mount leadform
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 8 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Device Marking
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)
EL
357N
RYWWV
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 9 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Tape & Reel Packing Specifications
Tape dimensions
Dimension No. A B Do D1 E F
Dimension (mm) 4.4 ± 0.1 7.4 ± 0.1 1.5 + 0.1/-0 1.5 ± 0.1 1.7 5± 0.1 7.5 ± 0.1
Dimension No. Po P1 P2 t W K
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
Direction of feed from reel Direction of feed from reel
Option TA Option TB
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 10 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
Solder Reflow Temperature Profile
150
C
1
-
3
C/Sec Max
70
–
170 Sec
200
C
217
C
>255
C
(30s Max
)
1
-
3
C/Sec Max
6
0
–
1
4
0 Sec
260
C
(peak)
TIME (S)
LifecyclePhase:
Revision : 4
Expired Period: Forever
Release Date:2010-01-15 13:27:26.0
4 PIN ULTRA SMALL SOP
PHOTOTRANSISTOR PHOTOCOUPLER
Everlight Electronics Co., Ltd. 11 http://www.everlight.com
Document No：DPC-0000014 Rev.4 December 28, 2009
EL357N-G Series
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.