EL816(S)(A)(TA)-V Equivalent & Substitute Parts

Part Overview

The EL816(S)(A)(TA)-V is a 5000Vrms optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This single-channel device is configured in a 4-SMD surface mount package with gull wing leads. The part is currently discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for direct circuit substitution.

Key Parameters

Parameter	Value
Manufacturer	Everlight Electronics Co Ltd
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	80% @ 5mA
Current Transfer Ratio (Max)	160% @ 5mA
Rise / Fall Time (Typ)	4µs, 3µs
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	80V
Current - Output / Channel	50mA
Voltage - Forward (Vf) (Typ)	1.2V
Current - DC Forward (If) (Max)	60mA
Vce Saturation (Max)	200mV
Operating Temperature	-55°C ~ 110°C
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the EL816(S)(A)(TA)-V is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - Isolation: 5000Vrms
Number of Channels: 1
Current Transfer Ratio: 80% to 160% @ 5mA
Output Type: Transistor
Voltage - Output (Max): 80V
Current - Output / Channel: 50mA
Vce Saturation (Max): 200mV
Input Type: DC
Voltage - Forward (Vf) (Typ): 1.2V
Current - DC Forward (If) (Max): 60mA

Mechanical Equivalence Criteria:

Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing
Operating Temperature: -55°C ~ 110°C

Compliance Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed below maintain 100% equivalence across these parameters. Variations in rise/fall time specifications (4µs/3µs versus 6µs/8µs) indicate different product lines within the EL816/EL817 family and are noted in the comparison table.

Parameter Comparison

Part Number	Manufacturer	Product Status	Isolation Voltage	CTR Min/Max	Rise/Fall Time	Output Voltage (Max)	Output Current	Vce Sat (Max)	Inventory
EL816(S)(A)(TA)-V	Everlight	Discontinued	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	890 Pcs
EL816(S)(A)(TD)	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	973 Pcs
EL816(S)(A)(TD)-V	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	971 Pcs
EL816(S)(A)(TU)	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	825 Pcs
EL816(S)(A)(TU)-V	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	954 Pcs
EL816(S1)(A)(TD)	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	1063 Pcs
EL816(S1)(A)(TD)-V	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	989 Pcs
EL816(S1)(A)(TU)	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	756 Pcs
EL816(S1)(A)(TU)-V	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	778 Pcs
EL816S2(A)(TU)-V	Everlight	Active	5000Vrms	80%/160%	4µs, 3µs	80V	50mA	200mV	939 Pcs
EL817(S)(A)(TD)-G	Everlight	Active	5000Vrms	80%/160%	6µs, 8µs	80V	50mA	200mV	904 Pcs

Engineering Selection Recommendations

Primary Substitutes (Identical Specifications):

The following parts are direct parametric equivalents with all electrical and mechanical specifications matching the EL816(S)(A)(TA)-V:

EL816(S)(A)(TD) - Active status, 973 Pcs in stock
EL816(S)(A)(TD)-V - Active status, 971 Pcs in stock
EL816(S)(A)(TU) - Active status, 825 Pcs in stock
EL816(S)(A)(TU)-V - Active status, 954 Pcs in stock
EL816(S1)(A)(TD) - Active status, 1063 Pcs in stock
EL816(S1)(A)(TD)-V - Active status, 989 Pcs in stock
EL816(S1)(A)(TU) - Active status, 756 Pcs in stock
EL816(S1)(A)(TU)-V - Active status, 778 Pcs in stock
EL816S2(A)(TU)-V - Active status, 939 Pcs in stock

All listed substitutes maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating. The primary distinction between these parts lies in manufacturing date code designations (TD, TU, S1, S2 variants) and tape & reel packaging options, which do not affect electrical performance or circuit compatibility.

Secondary Substitute (Timing Specification Variance):

EL817(S)(A)(TD)-G - Active status, 904 Pcs in stock

This part maintains all electrical and mechanical specifications with the exception of rise/fall time characteristics (6µs, 8µs versus 4µs, 3µs). Selection of this part is appropriate only when circuit timing requirements accommodate the slower switching response.

Frequently Asked Questions (FAQ)

Q: Can EL816(S)(A)(TD)-V be used as a direct replacement for EL816(S)(A)(TA)-V?

A: Yes. The EL816(S)(A)(TD)-V maintains 100% electrical and mechanical equivalence across all specified parameters including isolation voltage, current transfer ratio, output characteristics, and package configuration. The difference in part number designation reflects manufacturing date code only.

Q: What is the difference between EL816 and EL817 optoisolators?

A: The primary difference is rise/fall time specification. EL816 devices specify 4µs rise and 3µs fall times, while EL817 devices specify 6µs rise and 8µs fall times. All other electrical parameters remain identical. Selection depends on circuit timing requirements.

Q: Are all listed substitutes ROHS3 compliant?

A: All primary substitutes (EL816 variants) are ROHS3 compliant. The EL817(S)(A)(TD)-G is also ROHS3 compliant. Compliance status is maintained across the entire substitute list.

Q: What does the "-V" suffix in the part number indicate?

A: The "-V" suffix is a manufacturing designation variant. Parts with and without this suffix maintain identical electrical specifications and are interchangeable for circuit design purposes.

Q: Is the 4-SMD gull wing package consistent across all substitutes?

A: Yes. All listed substitutes utilize the 4-SMD surface mount package with gull wing lead configuration. Package dimensions and lead spacing are identical, enabling direct PCB footprint compatibility.

Q: Can EL816S2(A)(TU)-V be used in place of EL816(S)(A)(TA)-V?

A: Yes. The EL816S2(A)(TU)-V is a parametric equivalent with identical electrical specifications. The S2 designation indicates a manufacturing variant. Electrical performance and circuit compatibility are maintained.

Q: What is the operating temperature range for all substitutes?

A: All listed substitutes operate across the temperature range of -55°C to 110°C, matching the original EL816(S)(A)(TA)-V specification.

Q: Are there any inventory considerations for part selection?

A: Inventory levels vary across substitutes. EL816(S1)(A)(TD) offers the highest stock level at 1063 Pcs. Selection based on availability does not compromise electrical or mechanical compatibility.

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