TLP521-4GRG Equivalent & Substitute Parts

Part Overview

The TLP521-4GRG is a quad-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This 16-DIP through-hole component provides galvanic isolation up to 5300Vrms across four independent channels, making it suitable for applications requiring electrical isolation between input and output circuits. The part is currently in active production status with 746 units available in stock. Substitute parts are identified when they maintain identical electrical specifications, mechanical compatibility, and compliance certifications, ensuring direct interchangeability in circuit designs.

Substiute Parts

TLP521-4GRG

Isocom Components 2004 LTDIn Stock: 771TLP521-4GRG Datasheet

Current PartRFQ

TLP521-4XGRG

Isocom Components 2004 LTDIn Stock: 1022TLP521-4XGRG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLP521-4GRG is determined by strict equivalence across the following critical parameters:

• Number of channels: 4
• Voltage isolation rating: 5300Vrms
• Current transfer ratio range: 100% to 300% @ 1mA
• Output type: Transistor
• Maximum output voltage: 55V
• Maximum output current per channel: 50mA
• Package type: 16-DIP through-hole
• Operating temperature range: -30°C to 100°C
• Compliance certifications: ROHS3, REACH Unaffected

Parts meeting all these criteria are classified as parametric equivalents and may be used interchangeably in circuit applications without design modification.

Parameter Comparison

Engineering Selection Recommendations

The TLP521-4XGRG is a direct parametric equivalent to the TLP521-4GRG. Both parts are manufactured by Isocom Components 2004 LTD within the same TLP521-4 series and maintain identical electrical and mechanical specifications across all critical parameters. Both parts carry active product status, ROHS3 compliance, and REACH Unaffected certification. Selection between these parts may be based on inventory availability: TLP521-4GRG has 746 units in stock, while TLP521-4XGRG has 922 units available. No design modifications or circuit re-evaluation are required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can TLP521-4XGRG be used as a direct replacement for TLP521-4GRG?

A: Yes. Both parts are parametric equivalents with identical isolation voltage, channel count, current transfer ratios, output specifications, and package configuration. Direct substitution is possible without circuit modification.

Q: Are there any differences in compliance or certifications between these parts?

A: No. Both parts maintain identical ROHS3 compliance and REACH Unaffected status. Both are active products from the same manufacturer.

Q: What determines whether a part can substitute for the TLP521-4GRG?

A: Substitution requires matching all critical parameters: 4-channel configuration, 5300Vrms isolation, 100-300% current transfer ratio at 1mA, 55V maximum output voltage, 50mA per-channel output current, 16-DIP through-hole package, -30°C to 100°C operating range, and identical compliance certifications.

Q: Does the 16-DIP package dimension (0.400", 10.16mm) affect substitution compatibility?

A: No. Both parts use the identical 16-DIP package with the same pitch and dimensions, ensuring mechanical compatibility with existing PCB layouts and socket configurations.

Q: Are there inventory considerations when selecting between these equivalent parts?

A: Yes. TLP521-4XGRG currently has higher inventory availability (922 units) compared to TLP521-4GRG (746 units). Selection may depend on project lead time requirements and supply chain considerations.