
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
4 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 Series
Features:
• Current transfer ratio
(CTR: 50~600% at IF = 5mA, VCE = 5V)
• High isolation voltage between input
and output (Viso = 5000Vrms)
• Creepage distance > 7.62mm
• Operating temperature up to +110°C
• Compact small outline package
•The product itself will remain within RoHS compliant version
• Compliance with EU REACH
• UL and cUL approved(No.E214129)
• VDE approved (No. 132249)
• SEMKO approved
• NEMKO approved
• DEMKO approved
• FIMKO approved
• CQC approved
Description
The EL817series of devices each consist of an infrared emitting diodes,
optically coupled to a phototransistor detector.
They are packaged in a 4-pin DIP package and available in wide-lead spacing and SMD option.
Applications
• Programmable controllers
• System appliances, measuring instruments
• Telecommunication equipments
• Home appliances, such as fan heaters, etc.
• Signal transmission between circuits of different potentials and impedances
Schematic
Pin Configuration
1. Anode
2. Cathode
3. Emitter
4. Collector

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Absolute Maximum Ratings (Ta=25℃)
Peak forward current (1us, pulse)
Power dissipation
Derating factor (above Ta = 100°C)
Power dissipation
Derating factor (above Ta = 100°C)
Collector-Emitter voltage
Emitter-Collector voltage
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

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Electro-Optical Characteristics (Ta=25℃ unless specified otherwise)
Collector-Emitter dark
current
Collector-Emitter
breakdown voltage
Emitter-Collector
breakdown voltage
Collector-Emitter
saturation voltage
VIO = 500Vdc,
40~60% R.H.
V
CE
= 5V, IC = 2mA
RL = 100, -3dB
V
CE
= 2V, IC = 2mA,
RL = 100
* Typical values at Ta = 25°C
Input
Output
Transfer Characteristics

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Typical Electro-Optical Characteristics Curves

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Figure 7. Switching Time Test Circuit & Waveforms

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Part Number
EL817X(Y)(Z)-FV
Note
X = Lead form option (S, S1, S2, M or none)
Y = CTR Rank (A, B, C, D, X , Y or none)
Z = Tape and reel option (TA, TB, TU, TD or none)
F = Lead frame option (F: Iron, None: copper)
V = VDE safety (optional).
Wide lead bend (0.4 inch spacing)
Surface mount lead form + TA tape & reel option
Surface mount lead form + TB tape & reel option
Surface mount lead form (low profile) + TA tape & reel option
Surface mount lead form (low profile) + TB tape & reel option
Surface mount lead form (Gull-wing) + TA tape & reel option
Surface mount lead form (Gull-wing) + TB tape & reel option
Surface mount lead form + TU tape & reel option
Surface mount lead form + TD tape & reel option
Surface mount lead form (low profile) + TU tape & reel option
Surface mount lead form (low profile) + TD tape & reel option
Surface mount lead form (low profile) + TU tape & reel option
Surface mount lead form (low profile) + TD tape & reel option

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Package Dimension (Dimensions in mm)
Standard DIP Type
Option M Type

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Option S Type
Option S1 Type

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Recommended pad layout for surface mount leadform
For S option For S1 option
Option S2 Type
For S2 option
Notes
Suggested pad dimension is just for reference only.
Please modify the pad dimension based on individual need.

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Device Marking
Notes
EL denotes EVERLIGHT
817 denotes Device Number
F denotes Factory Code (G: China and Green part)
R denotes CTR Rank (A, B, C, D , X , Y or none)
Y denotes 1 digit Year code
WW denotes 2 digit Week code
V denotes VDE (optional)

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Tape & Reel Packing Specifications
Direction of feed from reel
Direction of feed from reel

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
Tape & Reel Packing Specifications
Tape dimensions
Direction of feed from reel
Direction of feed from reel

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
1.1 (A) Maximum Body Case Temperature Profile for evaluation of Reflow Profile
Reference: IPC/JEDEC J-STD-020D
Temperature min (T
smin
)
Temperature max (T
smax
)
Time (Tsmin to Tsmax) (ts)
Average ramp-up rate (Tsmax to Tp)
Liquidus Temperature (TL)
Time above Liquidus Temperature (t L)
Time within 5 °C of Actual Peak Temperature: TP - 5°C
Ramp- Down Rate from Peak Temperature
Time 25°C to peak temperature

DATASHEET
4PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
EL817 series
Copyright © 2010, Everlight All Rights Reserved. Release Date :July 20, 2016. Issue No: DPC-0000046 Rev.15
1. Above specification may be changed without notice. EVERLIGHT will reserve authority on material change for
above specification.
2. The graphs shown in this datasheet are representing typical data only and do not show guaranteed values.
3. When using this product, please observe the absolute maximum ratings and the instructions for use outlined in
these specification sheets. 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 these
specification sheets.
4. These specification sheets include materials protected under copyright of EVERLIGHT. Reproduction in any
form is prohibited without the specific consent of EVERLIGHT.
5. This product is not intended to be used for military, aircraft, automotive, medical, life sustaining or life saving
applications or any other application which can result in human injury or death. Please contact authorized
Everlight sales agent for special application request.