EL4502S(TA) Equivalent & Substitute Parts

Part Overview

The EL4502S(TA) is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation with a single channel configuration in an 8-SMD surface mount package. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across isolation voltage, channel count, output type configuration, package format, and operating temperature range. Alternative components may be required due to inventory availability, supply chain considerations, or specific application requirements within the allowed parameter specifications.

Substiute Parts

EL4502S(TA)

Everlight Electronics Co LtdIn Stock: 1082EL4502S(TA) Datasheet

Current PartRFQ

6N135SMT&R

Isocom Components 2004 LTDIn Stock: 20046N135SMT&R Datasheet

SimilarRFQ

6N136SMT&R

Isocom Components 2004 LTDIn Stock: 22396N136SMT&R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EL4502S(TA) is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Isolation: 5000Vrms (no deviation permitted)
• Number of Channels: 1 (single channel configuration)
• Package / Case: 8-SMD, Gull Wing (mechanical and electrical footprint compatibility)
• Mounting Type: Surface Mount
• Input Type: DC
• Voltage - Output (Max): 20V
• Current - Output / Channel: 8mA
• Operating Temperature Range: -55°C to 100°C

Allowable Variation Parameters:

• Current Transfer Ratio (Min): 7% to 50% @ 16mA (within specification window)
• Output Type: Transistor or Transistor with Base (functional equivalence for isolation and switching)
• Turn On / Turn Off Time: Variation permitted within application switching requirements

The identified substitute parts 6N135SMT&R and 6N136SMT&R from Isocom Components 2004 LTD satisfy all mandatory matching parameters and operate within the allowable variation range for Current Transfer Ratio and timing specifications.

Parameter Comparison

Engineering Selection Recommendations

EL4502S(TA) - Primary Component

The EL4502S(TA) maintains Active product status with confirmed inventory of 1014 pieces. This component is RoHS3 compliant with MSL Level 1 (unlimited moisture sensitivity), indicating robust handling characteristics. The part carries EAR99 export classification and standard HTSUS commodity code 8541.49.8000.

6N136SMT&R - Preferred Substitute

The 6N136SMT&R from Isocom Components 2004 LTD is the primary substitute option. This part demonstrates exact parameter matching on Current Transfer Ratio minimum specification (19% @ 16mA), identical isolation voltage (5000Vrms), and matching output current rating (8mA). The component is Active status with 2188 pieces in inventory. RoHS3 compliance, MSL Level 1 rating, and REACH Unaffected status are confirmed. Turn-on and turn-off timing specifications (150ns and 400ns respectively) are documented. The output type configuration includes base connection, providing additional circuit design flexibility compared to the base EL4502S(TA).

6N135SMT&R - Secondary Substitute

The 6N135SMT&R from Isocom Components 2004 LTD is a secondary substitute option. This part maintains all mandatory electrical parameters including 5000Vrms isolation and 8mA output current. Current Transfer Ratio minimum specification is 7% @ 16mA, which falls within the allowable 7% to 50% range but represents the lower boundary. Inventory availability is 1967 pieces. RoHS3 compliance, MSL Level 1 rating, and REACH Unaffected status are confirmed. Turn-on and turn-off timing specifications are not provided in the technical data. The output type includes base connection configuration.

All three components share identical package format (8-SMD, Gull Wing), mounting type (Surface Mount), operating temperature range (-55°C to 100°C), and regulatory compliance classifications.

Frequently Asked Questions (FAQ)

Q: Can the 6N135SMT&R be used as a direct replacement for the EL4502S(TA)?

A: The 6N135SMT&R satisfies all mandatory electrical and mechanical parameters for substitution. The 5000Vrms isolation voltage, single-channel configuration, 8-SMD package format, and -55°C to 100°C operating temperature range are identical. The Current Transfer Ratio minimum of 7% @ 16mA is lower than the EL4502S(TA) specification of 19%, but remains within the allowable 7% to 50% window. Timing specifications for turn-on and turn-off are not documented for this part. Circuit-level validation is required to confirm suitability for specific application switching speed requirements.

Q: What is the difference between the 6N135SMT&R and 6N136SMT&R?

A: Both parts are manufactured by Isocom Components 2004 LTD and share identical isolation voltage (5000Vrms), channel count (1), package format (8-SMD, Gull Wing), and output current rating (8mA). The primary differences are: (1) Current Transfer Ratio minimum specification: 6N135SMT&R is 7% @ 16mA while 6N136SMT&R is 19% @ 16mA, matching the EL4502S(TA); (2) Turn-on/turn-off timing: 6N136SMT&R specifies 150ns turn-on and 400ns turn-off, while 6N135SMT&R timing is not provided. The 6N136SMT&R provides closer parameter alignment to the EL4502S(TA).

Q: Are the substitute parts pin-compatible with the EL4502S(TA)?

A: All three components use the 8-SMD, Gull Wing package format with identical mechanical footprint specifications. Both substitute parts are surface mount devices with the same package designation. Pin-level compatibility requires verification of the specific pinout diagram for each manufacturer's implementation, as output type configuration differs: EL4502S(TA) has transistor output, while 6N135SMT&R and 6N136SMT&R have transistor with base output.

Q: What compliance certifications apply to all substitute options?

A: All three components (EL4502S(TA), 6N135SMT&R, and 6N136SMT&R) are RoHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Both substitute parts from Isocom Components are REACH Unaffected. All components share EAR99 export classification and HTSUS commodity code 8541.49.8000.

Q: Can these optoisolators be used interchangeably in high-speed switching applications?

A: Turn-on and turn-off timing specifications are critical for high-speed switching applications. The EL4502S(TA) specifies 350ns turn-on and 300ns turn-off. The 6N136SMT&R specifies 150ns turn-on and 400ns turn-off. The 6N135SMT&R does not provide timing specifications. Application-specific switching frequency requirements must be evaluated against these documented timing parameters before selecting a substitute component.

Q: What is the significance of the "Transistor with Base" output type in the substitute parts?

A: The EL4502S(TA) features transistor output only, while both substitute parts (6N135SMT&R and 6N136SMT&R) feature transistor with base output. The base connection provides additional circuit design flexibility for applications requiring direct base current control or specific biasing configurations. This represents a functional enhancement rather than a limitation, as the base output configuration maintains all specified electrical parameters including isolation voltage, output current, and operating temperature range.