EL4502S(TB)-V Equivalent & Substitute Parts

Part Overview

The EL4502S(TB)-V 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 and is RoHS3 compliant. Equivalent and substitute parts are identified when applications require alternative sourcing, inventory availability, or specific output stage configurations while maintaining core electrical and mechanical compatibility.

Substiute Parts

EL4502S(TB)-V

Everlight Electronics Co LtdIn Stock: 810EL4502S(TB)-V 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

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

Isolation Voltage: 5000Vrms (required match)

Number of Channels: 1 (required match)

Package Configuration: 8-SMD, Gull Wing surface mount (required match)

Input Type: DC (required match)

Output Stage Type: Transistor or Transistor with Base (functionally compatible)

Voltage - Output (Max): 20V (required match)

Current - Output / Channel: 8mA (required match)

Operating Temperature Range: -55°C ~ 100°C (required match)

Compliance: RoHS3 Compliant, MSL 1 (required match)

The substitute parts 6N135SMT&R and 6N136SMT&R from Isocom Components 2004 LTD satisfy all critical parameters. Both devices feature identical isolation voltage, channel count, package type, input/output voltage and current specifications, and operating temperature range. The primary distinction is the output stage configuration: the EL4502S(TB)-V provides standard transistor output, while the Isocom alternatives provide transistor with base output, which offers additional design flexibility in output stage biasing.

Parameter Comparison

Engineering Selection Recommendations

EL4502S(TB)-V (Primary Part): Select this part when Everlight Electronics sourcing is preferred or when standard transistor output configuration is specified in circuit design. Current Transfer Ratio minimum of 19% at 16mA provides defined performance floor. Product status is Active with full RoHS3 compliance and MSL 1 rating.

6N136SMT&R (Preferred Substitute): This Isocom part provides the closest electrical match with identical Current Transfer Ratio minimum specification (19% @ 16mA) and defined switching times (150ns turn-on, 400ns turn-off). Transistor with base output configuration allows independent base biasing control. Product status is Active with RoHS3 compliance, MSL 1 rating, and REACH Unaffected status. Higher inventory availability (2188 pcs) supports supply chain continuity.

6N135SMT&R (Alternative Substitute): This Isocom part meets all core isolation, package, and output specifications. Current Transfer Ratio minimum of 7% at 16mA is lower than the primary part, resulting in reduced performance margin. Transistor with base output provides design flexibility. Product status is Active with RoHS3 compliance and MSL 1 rating. Inventory availability is 1967 pcs.

All three parts are Active products with identical compliance certifications and operating temperature ranges, supporting direct substitution in applications where the specified electrical parameters are acceptable.

Frequently Asked Questions (FAQ)

Q: Can 6N135SMT&R or 6N136SMT&R be used as direct replacements for EL4502S(TB)-V?

A: Both Isocom parts are functionally compatible substitutes. All three devices share identical isolation voltage (5000Vrms), channel count (1), package configuration (8-SMD Gull Wing), output voltage (20V max), output current (8mA), and operating temperature range (-55°C to 100°C). The 6N136SMT&R provides the closest electrical match with identical Current Transfer Ratio minimum specification. The 6N135SMT&R has a lower Current Transfer Ratio minimum (7% vs 19%), which may affect circuit performance depending on application requirements.

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

A: The EL4502S(TB)-V provides standard transistor output where the collector and emitter are available for connection. The 6N135SMT&R and 6N136SMT&R provide transistor with base output, making the base terminal accessible. This allows independent base biasing control in the output stage, providing additional design flexibility for output impedance matching and switching characteristics optimization.

Q: Are all three parts RoHS3 compliant?

A: Yes. The EL4502S(TB)-V, 6N135SMT&R, and 6N136SMT&R are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, supporting use in standard manufacturing and storage environments without special handling requirements.

Q: What are the key differences in switching performance?

A: The EL4502S(TB)-V specifies turn-on and turn-off times of 350ns and 300ns respectively. The 6N136SMT&R specifies 150ns turn-on and 400ns turn-off. The 6N135SMT&R does not specify switching times. Applications with strict timing requirements should reference the specific switching time data for the selected part.

Q: How do Current Transfer Ratio specifications affect part selection?

A: Current Transfer Ratio (CTR) defines the ratio of output current to input current. The EL4502S(TB)-V and 6N136SMT&R specify minimum CTR of 19% at 16mA input current, while 6N135SMT&R specifies 7% minimum. Higher CTR minimum values provide greater performance margin and more predictable output current across component variations. Applications requiring consistent output current should prioritize parts with higher CTR minimum specifications.

Q: What inventory considerations apply to these parts?

A: Current inventory levels are: EL4502S(TB)-V (716 pcs), 6N135SMT&R (1967 pcs), and 6N136SMT&R (2188 pcs). The Isocom alternatives provide higher inventory availability, supporting extended production runs and supply chain continuity.