EL4502S(TA)-V Equivalent & Substitute Parts

Part Overview

The EL4502S(TA)-V is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This single-channel device provides 5000Vrms isolation with DC input and transistor output configuration, designed for applications requiring galvanic isolation in surface mount implementations. The part is Active status and RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct replacement in compatible circuit designs.

Substiute Parts

EL4502S(TA)-V

Everlight Electronics Co LtdIn Stock: 742EL4502S(TA)-V Datasheet

Current PartRFQ

6N135SMT&R

Isocom Components 2004 LTDIn Stock: 20046N135SMT&R Datasheet

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6N136SMT&R

Isocom Components 2004 LTDIn Stock: 22396N136SMT&R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL4502S(TA)-V are identified based on the following critical parameters that determine functional equivalence:

Isolation Voltage: 5000Vrms isolation rating is maintained across all substitute parts.

Number of Channels: Single-channel configuration is consistent across all alternatives.

Input Type: DC input specification is preserved in all substitute parts.

Voltage - Output (Max): 20V maximum output voltage is matched across all parts.

Current - Output / Channel: 8mA output current specification is maintained.

Voltage - Forward (Vf) (Typ): 1.45V forward voltage is consistent.

Current - DC Forward (If) (Max): 25mA maximum forward current is matched.

Operating Temperature Range: -55°C ~ 100°C operating range is maintained.

Mounting Type: Surface Mount configuration is consistent.

Package / Case: 8-SMD, Gull Wing package is identical across all parts.

RoHS Status: ROHS3 compliance is maintained.

Moisture Sensitivity Level: MSL 1 (Unlimited) is consistent.

The substitute parts identified are 6N135SMT&R and 6N136SMT&R, both manufactured by Isocom Components 2004 LTD. These parts share the critical electrical and mechanical parameters required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

All three optoisolator parts—EL4502S(TA)-V, 6N135SMT&R, and 6N136SMT&R—maintain Active product status and ROHS3 compliance, confirming ongoing availability and environmental regulatory alignment.

The EL4502S(TA)-V features a standard transistor output configuration. The substitute parts 6N135SMT&R and 6N136SMT&R provide transistor with base output, which offers additional circuit design flexibility through base access while maintaining electrical compatibility with the primary isolation and output specifications.

Current transfer ratio specifications differ between parts: EL4502S(TA)-V and 6N136SMT&R specify 19% minimum at 16mA, while 6N135SMT&R specifies 7% minimum at 16mA. All three parts maintain 50% maximum current transfer ratio.

Turn-on and turn-off timing specifications are provided for EL4502S(TA)-V (350ns on, 300ns off) and 6N136SMT&R (150ns on, 400ns off). The 6N135SMT&R does not specify timing parameters.

All parts share identical isolation voltage (5000Vrms), output voltage maximum (20V), output current (8mA), forward voltage (1.45V), maximum forward current (25mA), operating temperature range (-55°C ~ 100°C), package configuration (8-SMD, Gull Wing), and moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can 6N135SMT&R directly replace EL4502S(TA)-V in all applications?

A: The 6N135SMT&R shares critical electrical parameters including isolation voltage, output voltage, output current, and operating temperature range. However, the current transfer ratio minimum is 7% compared to 19% for the EL4502S(TA)-V. Circuit designs dependent on minimum current transfer ratio specifications must account for this difference. The 6N135SMT&R provides transistor with base output versus standard transistor output on the EL4502S(TA)-V.

Q: What is the difference between transistor output and transistor with base output?

A: The EL4502S(TA)-V provides standard transistor output with collector and emitter connections. The 6N135SMT&R and 6N136SMT&R provide transistor with base output, adding a base connection for additional circuit design options. Both configurations maintain the same isolation voltage, output voltage, and current specifications.

Q: Are all three parts RoHS3 compliant?

A: Yes. EL4502S(TA)-V, 6N135SMT&R, and 6N136SMT&R are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What are the timing differences between substitute parts?

A: EL4502S(TA)-V specifies 350ns turn-on and 300ns turn-off time. 6N136SMT&R specifies 150ns turn-on and 400ns turn-off time. 6N135SMT&R does not provide timing specifications. Applications with timing-critical requirements must reference the specific part datasheets.

Q: Do all parts use the same 8-SMD, Gull Wing package?

A: Yes. All three parts use identical 8-SMD, Gull Wing surface mount package configuration, enabling direct PCB footprint compatibility.

Q: What is the current transfer ratio specification for each part?

A: EL4502S(TA)-V: 19% minimum, 50% maximum at 16mA. 6N135SMT&R: 7% minimum, 50% maximum at 16mA. 6N136SMT&R: 19% minimum, 50% maximum at 16mA.

Q: Are all parts currently in active production?

A: Yes. All three parts maintain Active product status, confirming ongoing manufacturing and availability.