TLP521-2SMT&R Equivalent & Substitute Parts

Part Overview

The TLP521-2SMT&R is a dual-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This surface-mount component provides 5300Vrms isolation voltage and is designed for applications requiring galvanic isolation between input and output circuits. The part is active in production status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and packaging specifications to ensure direct functional equivalence in circuit applications.

Substiute Parts

TLP521-2SMT&R

Isocom Components 2004 LTDIn Stock: 923TLP521-2SMT&R Datasheet

Current PartRFQ

ISP521-2XSMT&R

Isocom Components 2004 LTDIn Stock: 2206ISP521-2XSMT&R Datasheet

Parametric EquivalentRFQ

ISP621-2XGRSMT&R

Isocom Components 2004 LTDIn Stock: 1824ISP621-2XGRSMT&R Datasheet

Parametric EquivalentRFQ

ISP621-2XSMT&R

Isocom Components 2004 LTDIn Stock: 2236ISP621-2XSMT&R Datasheet

Parametric EquivalentRFQ

TLP521-2XSMT&R

Isocom Components 2004 LTDIn Stock: 2166TLP521-2XSMT&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLP521-2SMT&R are qualified based on the following critical parameters that determine functional equivalence:

Electrical Equivalence Criteria:

• Number of Channels: 2 (dual-channel configuration)
• Voltage - Isolation: 5300Vrms (isolation rating)
• Current Transfer Ratio: 50% (Min) @ 5mA and 600% (Max) @ 5mA
• Output Type: Transistor (output configuration)
• Voltage - Output (Max): 55V (maximum output voltage)
• Current - Output / Channel: 50mA (output current capability)
• Vce Saturation (Max): 400mV (saturation voltage)
• Input Type: DC (input signal type)
• Voltage - Forward (Vf) (Typ): 1.15V (forward voltage)
• Current - DC Forward (If) (Max): 50mA (forward current)

Mechanical & Environmental Equivalence Criteria:

• Package / Case: 8-SMD, Gull Wing (physical form factor)
• Mounting Type: Surface Mount (assembly method)
• Operating Temperature: -30°C ~ 100°C (temperature range)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (moisture rating)

Compliance & Regulatory Equivalence Criteria:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• Product Status: Active

All identified substitute parts match these parameters exactly and are manufactured by Isocom Components 2004 LTD.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are manufactured by Isocom Components 2004 LTD and maintain active production status. Each part carries ROHS3 compliance certification and REACH unaffected designation, meeting current regulatory requirements for electronic component procurement.

The substitute parts are organized by series designation:

ISP521-2 Series: ISP521-2XSMT&R provides equivalent functionality within the ISP521-2 product line with 2112 units in current inventory.

ISP621-2 Series: ISP621-2XGRSMT&R and ISP621-2XSMT&R represent the ISP621-2 product line with 1730 and 2140 units respectively in current inventory.

TLP521-2 Series: TLP521-2XSMT&R maintains the original TLP521-2 series designation with 2087 units in current inventory.

All parts are qualified for direct substitution based on matching electrical parameters, mechanical form factor, and environmental operating specifications. Selection among substitute parts may be based on inventory availability and series preference within design requirements.

Frequently Asked Questions (FAQ)

Q: Can ISP521-2XSMT&R be used as a direct replacement for TLP521-2SMT&R?

A: Yes. ISP521-2XSMT&R is a parametric equivalent with identical electrical characteristics, isolation voltage, current transfer ratio, output specifications, and operating temperature range. Both components use the same 8-SMD Gull Wing package and surface-mount configuration.

Q: What is the difference between ISP621-2XGRSMT&R and ISP621-2XSMT&R?

A: Both parts are from the ISP621-2 series and share identical electrical and mechanical specifications. The designation difference reflects manufacturing or packaging variants within the same product line. Both are functionally equivalent for circuit applications.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All substitute parts use the 8-SMD Gull Wing package with identical pin configuration and spacing. PCB layouts designed for TLP521-2SMT&R are compatible with all listed substitute parts without modification.

Q: Do all substitute parts meet the same regulatory requirements?

A: Yes. All substitute parts carry ROHS3 compliance certification and REACH unaffected designation, matching the regulatory status of the TLP521-2SMT&R.

Q: What is the moisture sensitivity level for these components?

A: All parts, including TLP521-2SMT&R and its substitutes, have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Can these optoisolators be used in applications requiring 5300Vrms isolation?

A: Yes. All listed parts, including the main part and substitutes, are rated for 5300Vrms isolation voltage and are suitable for high-voltage isolation applications.