EL1118(TA)-G Equivalent & Substitute Parts

Part Overview

The EL1118(TA)-G is an optoisolator transistor with base output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation with a single channel transistor output configuration in a 5-SOP package. The part is currently active in production with 763 pieces in stock inventory.

Substitute parts are necessary when the primary part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design flexibility permits selection from multiple qualified manufacturers. The EL1118(TA)-G has established equivalents within the Vishay Semiconductor Opto Division TCLT series, which share the same isolation voltage, output type, and core electrical characteristics.

Substiute Parts

EL1118(TA)-G

Everlight Electronics Co LtdIn Stock: 835EL1118(TA)-G Datasheet

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TCLT1100

Vishay Semiconductor Opto DivisionIn Stock: 9228TCLT1100 Datasheet

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TCLT1102

Vishay Semiconductor Opto DivisionIn Stock: 3280TCLT1102 Datasheet

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TCLT1103

Vishay Semiconductor Opto DivisionIn Stock: 9864TCLT1103 Datasheet

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TCLT1106

Vishay Semiconductor Opto DivisionIn Stock: 5919TCLT1106 Datasheet

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TCLT1107

Vishay Semiconductor Opto DivisionIn Stock: 9280TCLT1107 Datasheet

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TCLT1109

Vishay Semiconductor Opto DivisionIn Stock: 20036TCLT1109 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EL1118(TA)-G is determined by strict alignment with the following core parameters:

Primary Substitution Criteria:

• Isolation voltage of 5000Vrms
• Single channel configuration
• Transistor with base output type
• Maximum output voltage of 70V or higher
• Maximum output current of 50mA per channel
• DC input type
• Surface mount configuration
• 6-SOIC package with 5 leads
• ROHS3 compliance
• MSL rating of 1 (Unlimited)

Secondary Compatibility Factors:

• Current transfer ratio ranges (may vary by part)
• Turn-on/turn-off timing specifications
• Vce saturation voltage
• Operating temperature range (minimum -55°C, maximum 100°C or higher)
• Forward voltage characteristics

All substitute parts listed are manufactured by Vishay Semiconductor Opto Division and belong to the TCLT optoisolator series. These parts maintain electrical and mechanical compatibility within the specified parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active production status and ROHS3 compliance, meeting regulatory requirements equivalent to the EL1118(TA)-G. Selection among substitute options depends on specific application requirements within the defined parameter boundaries.

TCLT1107 is suitable for applications where maximum output voltage of 70V is acceptable, as this part operates within a lower voltage envelope while maintaining all other core specifications.

TCLT1100, TCLT1103, TCLT1106, and TCLT1109 support the full 80V maximum output voltage specification and are interchangeable with the EL1118(TA)-G in applications requiring this voltage capability.

TCLT1102 operates with a defined current transfer ratio range at 10mA input current, differing from the 5mA reference used by other parts in this series.

All substitute parts feature improved Vce saturation characteristics (300mV maximum) compared to the EL1118(TA)-G (400mV maximum), resulting in lower power dissipation in the output transistor stage.

Operating temperature ranges for all Vishay TCLT substitutes extend to 100°C maximum, compared to 110°C for the EL1118(TA)-G. Applications requiring operation above 100°C must retain the original EL1118(TA)-G specification.

Frequently Asked Questions (FAQ)

Q: Can TCLT1107 be used as a direct replacement for EL1118(TA)-G in all applications?

A: TCLT1107 is compatible with EL1118(TA)-G in applications where the maximum output voltage requirement does not exceed 70V. The EL1118(TA)-G supports 80V maximum output voltage. For circuits designed to operate at output voltages between 70V and 80V, TCLT1107 is not suitable. All other electrical and mechanical parameters are compatible.

Q: What is the difference in current transfer ratio between the main part and substitutes?

A: The EL1118(TA)-G specifies a current transfer ratio of 130% to 260% at 5mA input current. Substitute parts vary: TCLT1100 ranges from 50% to 600% at 5mA; TCLT1102 ranges from 63% to 125% at 10mA; TCLT1103 ranges from 100% to 200% at 10mA; TCLT1106 ranges from 100% to 300% at 5mA; TCLT1107 ranges from 80% to 160% at 5mA; TCLT1109 ranges from 200% to 400% at 5mA. Circuit designs must account for these variations in gain characteristics.

Q: Are all substitute parts available in the same package configuration?

A: Yes. All substitute parts use the 6-SOIC package with 0.295" width and 7.50mm physical dimensions, containing 5 leads. PCB footprints and land patterns are identical, enabling direct mechanical substitution.

Q: What is the impact of lower Vce saturation voltage in substitute parts?

A: Substitute parts specify a maximum Vce saturation of 300mV compared to 400mV for the EL1118(TA)-G. Lower saturation voltage reduces power dissipation in the output transistor, resulting in improved thermal performance. This is a beneficial characteristic that does not create compatibility issues.

Q: Do all parts meet the same regulatory compliance standards?

A: Yes. The EL1118(TA)-G and all listed substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity level). All parts carry ECCN classification EAR99 and HTSUS code 8541.49.8000. Vishay TCLT parts include REACH Unaffected status.

Q: What is the maximum operating temperature for each part?

A: The EL1118(TA)-G operates from -55°C to 110°C. All Vishay TCLT substitute parts operate from -55°C to 100°C. Applications requiring sustained operation above 100°C must use the original EL1118(TA)-G specification.

Q: Can substitute parts be mixed within a single design?

A: Yes, provided the circuit design accommodates the specific current transfer ratio range and timing characteristics of each selected part. Mixing parts with different CTR ranges requires circuit analysis to ensure proper operation across the combined parameter variations.