TLP521-1GRG Equivalent & Substitute Parts

Part Overview

The TLP521-1GRG is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This single-channel device provides galvanic isolation rated at 5300Vrms and is designed for applications requiring DC input signal isolation with transistor-based output switching. The part is currently active in production with full inventory availability. Substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the 4-DIP package format.

Substiute Parts

TLP521-1GRG

Isocom Components 2004 LTDIn Stock: 1157TLP521-1GRG Datasheet

Current PartRFQ

TLP521-1XGRG

Isocom Components 2004 LTDIn Stock: 1260TLP521-1XGRG Datasheet

Parametric EquivalentRFQ

TLP521XGRG

Isocom Components 2004 LTDIn Stock: 1030TLP521XGRG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLP521-1GRG are identified through parametric equivalence. The following electrical and mechanical parameters determine substitution eligibility:

Critical Parameters for Substitution:

• Number of Channels: 1
• Voltage - Isolation: 5300Vrms
• Current Transfer Ratio range: 100% to 300% @ 1mA
• Output Type: Transistor
• Voltage - Output (Max): 55V
• Current - Output / Channel: 50mA
• Package / Case: 4-DIP (0.400", 10.16mm)
• Operating Temperature: -30°C ~ 100°C

All identified substitute parts maintain identical electrical performance across these parameters and are compatible with applications designed for the TLP521-1GRG.

Parameter Comparison

Engineering Selection Recommendations

All three parts—TLP521-1GRG, TLP521-1XGRG, and TLP521XGRG—are active products from Isocom Components 2004 LTD with identical electrical specifications and mechanical compatibility. Selection between these parts is based on availability and supply chain requirements rather than technical performance differences.

All parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The 4-DIP through-hole package format ensures direct mechanical compatibility across PCB designs.

Frequently Asked Questions (FAQ)

Q: Can TLP521-1XGRG be used as a direct replacement for TLP521-1GRG?

A: Yes. Both parts share identical electrical parameters including isolation voltage, current transfer ratio, output voltage and current ratings, and operating temperature range. The 4-DIP package format is identical, enabling direct pin-compatible substitution.

Q: What is the difference between TLP521-1GRG and TLP521XGRG?

A: Both parts are parametrically equivalent with matching electrical performance. The primary difference is the series designation (TLP521-1 versus TLP521). All critical electrical and mechanical parameters remain identical, including isolation voltage, current transfer ratio, output specifications, and package format.

Q: Are these parts suitable for high-voltage isolation applications?

A: Yes. All three parts provide 5300Vrms isolation voltage rating, suitable for applications requiring galvanic isolation between circuits operating at different voltage potentials.

Q: What is the maximum output current for these optoisolators?

A: The maximum output current per channel is 50mA across all three parts. The maximum output voltage is 55V.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards for electronic components.

Q: What is the package format for these parts?

A: All parts use a 4-DIP (0.400", 10.16mm) through-hole package, suitable for standard PCB mounting and breadboard applications.