EL1010-G Equivalent & Substitute Parts Reference

Part Overview

The EL1010-G is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation in a 4-SOP surface mount package, designed for DC input applications requiring galvanic isolation with transistor switching capability. The part is currently active in production with 1031 units in stock. Substitute parts are identified based on matching isolation voltage, package type, output configuration, and electrical performance parameters within acceptable operating ranges.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Isolation Voltage	5000	Vrms	Critical - must match exactly
Number of Channels	1	Channel	Critical - must match exactly
Output Type	Transistor	-	Critical - must match exactly
Package / Case	4-SMD, Gull Wing	-	Critical - must match for PCB compatibility
Supplier Device Package	4-SOP (2.54mm)	-	Critical - must match for assembly
Input Type	DC	-	Critical - must match exactly
Voltage - Output (Max)	80	V	Important - determines load voltage capability
Current - Output / Channel	50	mA	Important - determines load current capability
Vce Saturation (Max)	300	mV	Important - affects output voltage drop
Operating Temperature	-55 to 110	°C	Important - determines thermal operating range
Mounting Type	Surface Mount	-	Critical - must match assembly process
RoHS Status	ROHS3 Compliant	-	Important - regulatory compliance requirement
Moisture Sensitivity Level	1 (Unlimited)	-	Important - determines storage and handling requirements

Substitute Part Grouping Explanation

Substitute parts for the EL1010-G are identified based on the following mandatory matching criteria:

Critical Parameters (Must Match Exactly):

Isolation Voltage: 5000Vrms
Number of Channels: 1
Output Type: Transistor
Input Type: DC
Package / Case: 4-SMD, Gull Wing
Supplier Device Package: 4-SOP

Important Parameters (Must Be Within Acceptable Range):

Voltage - Output (Max): EL1010-G specifies 80V; substitutes with 70V are acceptable for applications not requiring the full 80V capability
Current - Output / Channel: All substitutes maintain 50mA
Vce Saturation (Max): EL1010-G specifies 300mV; substitutes with 300mV or 400mV are acceptable
Operating Temperature: EL1010-G specifies -55°C to 110°C; substitutes with -55°C to 100°C are acceptable for applications not requiring operation above 100°C
Current Transfer Ratio: Varies by part grade; substitutes with different CTR ranges are acceptable based on application requirements
Turn On / Turn Off Time: EL1010-G specifies 4µs and 3µs; substitutes with 6µs and 5µs represent acceptable performance variation
RoHS Status: All substitutes maintain ROHS3 Compliant status
Moisture Sensitivity Level: All substitutes maintain MSL 1 (Unlimited)

The substitute parts listed are Vishay Semiconductor Opto Division TCLT series and VOL617A series optoisolators, all meeting the critical matching criteria with acceptable variations in performance parameters.

Parameter Comparison

Parameter	EL1010-G	TCLT1000	TCLT1002	TCLT1003	TCLT1005	TCLT1006	TCLT1007	TCLT1008	TCLT1009	VOL617A-1X001T	VOL617A-2X001T
Manufacturer	Everlight	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay
Isolation Voltage	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms	5000Vrms
Number of Channels	1	1	1	1	1	1	1	1	1	1	1
Output Type	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor	Transistor
Input Type	DC	DC	DC	DC	DC	DC	DC	DC	DC	DC	DC
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing
Voltage - Output (Max)	80V	70V	70V	70V	70V	70V	70V	70V	70V	80V	80V
Current - Output / Channel	50mA	50mA	50mA	50mA	50mA	50mA	50mA	50mA	50mA	50mA	50mA
Vce Saturation (Max)	300mV	300mV	300mV	300mV	300mV	300mV	300mV	300mV	300mV	400mV	400mV
Operating Temperature	-55 to 110°C	-55 to 100°C	-55 to 100°C	-55 to 100°C	-55 to 100°C	-55 to 100°C	-55 to 100°C	-55 to 100°C	-55 to 100°C	-55 to 110°C	-55 to 110°C
Turn On Time (Typ)	4µs	6µs	6µs	6µs	6µs	6µs	6µs	6µs	6µs	6µs	6µs
Turn Off Time (Typ)	3µs	5µs	5µs	5µs	5µs	5µs	5µs	5µs	5µs	5.5µs	5.5µs
Current Transfer Ratio (Min)	50% @ 5mA	50% @ 5mA	63% @ 10mA	100% @ 10mA	50% @ 5mA	100% @ 5mA	80% @ 5mA	130% @ 5mA	200% @ 5mA	40% @ 5mA	63% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA	600% @ 5mA	125% @ 10mA	200% @ 10mA	150% @ 5mA	300% @ 5mA	160% @ 5mA	260% @ 5mA	400% @ 5mA	80% @ 5mA	125% @ 5mA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

TCLT1000 and TCLT1006 provide the closest electrical performance match to the EL1010-G. Both maintain 5000Vrms isolation, 1-channel transistor output, and 4-SOP package configuration. TCLT1000 offers 50-600% CTR range at 5mA matching the EL1010-G specification. TCLT1006 provides 100-300% CTR range at 5mA. Both are ROHS3 compliant with MSL 1 rating. The primary difference is operating temperature range: TCLT series supports -55°C to 100°C versus EL1010-G's -55°C to 110°C. This substitution is suitable for applications not requiring operation above 100°C.

Secondary Substitutes (Acceptable with Application Review):

TCLT1002, TCLT1003, TCLT1005, TCLT1007, and TCLT1008 are functionally equivalent with different Current Transfer Ratio grades. These parts maintain all critical parameters (isolation voltage, package, channel count, output type) and are ROHS3 compliant. Selection among these variants depends on the specific CTR requirement of the application. TCLT1009 provides the highest CTR range (200-400% @ 5mA) for applications requiring maximum current transfer efficiency.

Alternative Substitutes (Extended Operating Temperature):

VOL617A-1X001T and VOL617A-2X001T maintain the full -55°C to 110°C operating temperature range of the EL1010-G and support 80V maximum output voltage. These parts are suitable for high-temperature applications. VOL617A-1X001T provides 40-80% CTR range, while VOL617A-2X001T provides 63-125% CTR range. Both have slightly higher Vce saturation (400mV versus 300mV), which affects output voltage drop characteristics.

Compliance Status:

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the EL1010-G compliance profile. All parts are classified under HTSUS 8541.49.8000 and ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can TCLT1000 directly replace EL1010-G in all applications?

A: TCLT1000 is electrically compatible with EL1010-G for applications operating within -55°C to 100°C temperature range. Both parts share identical isolation voltage (5000Vrms), package type (4-SOP), channel configuration (1 channel), and output type (transistor). The primary difference is the upper operating temperature limit: TCLT1000 is rated to 100°C while EL1010-G is rated to 110°C. For applications requiring operation above 100°C, use VOL617A series substitutes.

Q: What is the significance of Current Transfer Ratio (CTR) differences among substitute parts?

A: Current Transfer Ratio determines the efficiency of signal transfer from the input LED to the output transistor. EL1010-G specifies 50-600% CTR @ 5mA. Substitute parts offer different CTR grades: TCLT1000 (50-600%), TCLT1006 (100-300%), TCLT1008 (130-260%), and TCLT1009 (200-400%). Selection depends on the application's input current and required output current. Higher CTR grades require less input current to achieve the same output current. Lower CTR grades provide wider input current operating range.

Q: Are there package compatibility differences between EL1010-G and TCLT series substitutes?

A: All TCLT series substitutes use 4-SOP (2.54mm) package with 4-SMD Gull Wing configuration, identical to EL1010-G. These parts are pin-compatible and PCB-compatible without layout modifications. VOL617A series also uses 4-SOP package configuration and is pin-compatible.

Q: What is the impact of Vce Saturation differences on circuit performance?

A: EL1010-G specifies maximum Vce saturation of 300mV. TCLT series maintains 300mV, while VOL617A series specifies 400mV. Vce saturation represents the voltage drop across the output transistor in saturation state. Higher saturation voltage results in greater voltage drop and power dissipation. For applications with tight output voltage specifications or high output current requirements, the 300mV specification of TCLT series is preferred over the 400mV specification of VOL617A series.

Q: Can EL1010-G be substituted with TCLT1009 for improved performance?

A: TCLT1009 offers higher Current Transfer Ratio (200-400% @ 5mA) compared to EL1010-G (50-600% @ 5mA). This higher CTR grade reduces the input current required to achieve full output current, potentially improving circuit efficiency. However, TCLT1009 operates to 100°C maximum temperature versus EL1010-G's 110°C. TCLT1009 is suitable for applications prioritizing input current efficiency and not requiring operation above 100°C.

Q: What are the inventory considerations for substitute selection?

A: TCLT1002 offers the highest inventory availability (143,200 units), followed by TCLT1008 (59,200 units) and TCLT1009 (39,037 units). TCLT1000 has 7,868 units available. VOL617A-2X001T has 28,647 units, while VOL617A-1X001T has only 2,200 units. For applications with extended lead time requirements, TCLT1002 or TCLT1008 provide superior supply chain availability.

Q: Are there thermal performance differences between substitute parts?

A: EL1010-G and VOL617A series support -55°C to 110°C operating range. TCLT series supports -55°C to 100°C. For applications operating in high-temperature environments above 100°C, VOL617A-1X001T or VOL617A-2X001T are required. For standard industrial temperature ranges (-40°C to 85°C), all substitute parts are thermally equivalent.

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