TLP621-2XSM Equivalent & Substitute Parts

Part Overview

The TLP621-2XSM is a dual-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This 8-pin surface mount device provides galvanic isolation up to 5300Vrms and is designed for applications requiring electrical isolation between input and output circuits. The part is currently in active production status with 718 units in stock. Substitute parts are identified based on identical electrical specifications, mechanical compatibility, and compliance certifications to ensure direct interchangeability in circuit designs.

Substiute Parts

TLP621-2XSM

Isocom Components 2004 LTDIn Stock: 824TLP621-2XSM Datasheet

Current PartRFQ

TLP621-2XGBSM

Isocom Components 2004 LTDIn Stock: 760TLP621-2XGBSM Datasheet

Parametric EquivalentRFQ

TLP621-2XGRSM

Isocom Components 2004 LTDIn Stock: 902TLP621-2XGRSM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The TLP621-2XSM has two parametric equivalent substitutes within the TLP621-2 series: TLP621-2XGBSM and TLP621-2XGRSM. These parts are classified as direct substitutes based on the following criteria:

All three parts share identical electrical specifications across isolation voltage, current transfer ratio range, output voltage rating, output current per channel, and saturation voltage. They maintain the same dual-channel configuration with transistor output topology. The mechanical compatibility is ensured through identical package designation (8-SMD, Gull Wing) and surface mount mounting type. Compliance certifications including ROHS3, moisture sensitivity level, and regulatory classifications (ECCN, HTSUS) are uniform across all three parts. The substitution relationship is bidirectional within this group, meaning any part can replace another in circuit applications without modification to PCB layout or electrical design.

Parameter Comparison

Engineering Selection Recommendations

All three parts in this substitution group maintain active production status with Isocom Components 2004 LTD, ensuring long-term availability and supply chain stability. Each part carries ROHS3 compliance certification and REACH unaffected status, meeting environmental and regulatory requirements for industrial and commercial applications. The moisture sensitivity level of 1 (Unlimited) indicates minimal handling restrictions during assembly and storage.

Selection between TLP621-2XSM, TLP621-2XGBSM, and TLP621-2XGRSM should be based on inventory availability and lead time requirements. Current stock levels are: TLP621-2XSM (718 units), TLP621-2XGBSM (665 units), and TLP621-2XGRSM (860 units). No electrical or mechanical differentiation exists between these parts; they are functionally identical for circuit design purposes.

Frequently Asked Questions (FAQ)

Q: Can TLP621-2XGBSM and TLP621-2XGRSM be used interchangeably with TLP621-2XSM?

A: Yes. All three parts are parametric equivalents with identical electrical specifications, isolation voltage, output characteristics, and package configuration. They are direct substitutes requiring no circuit modification.

Q: Are there any differences in isolation voltage or current transfer ratio between these parts?

A: No. All three parts specify 5300Vrms isolation voltage and identical current transfer ratio ranges (50% to 600% @ 5mA). Output voltage and current ratings are uniform across the group.

Q: Do these parts require different PCB footprints?

A: No. All three parts use the 8-SMD, Gull Wing package with surface mount configuration. PCB layout and reflow profiles remain unchanged when substituting between these parts.

Q: What is the significance of the part number suffix variations (XSM, XGBSM, XGRSM)?

A: The suffix variations indicate different manufacturing batches or internal product line designations within the TLP621-2 series. These variations do not affect electrical performance or mechanical compatibility.

Q: Are all three parts ROHS3 compliant?

A: Yes. TLP621-2XSM, TLP621-2XGBSM, and TLP621-2XGRSM all carry ROHS3 compliance certification and are REACH unaffected, meeting environmental standards for regulated markets.

Q: Which part should be selected based on availability?

A: Selection should prioritize current inventory levels and supply lead times. TLP621-2XGRSM currently has the highest stock level (860 units), followed by TLP621-2XSM (718 units) and TLP621-2XGBSM (665 units). All parts are in active production.