TLP621-2XBLSM Equivalent & Substitute Parts

Part Overview

The TLP621-2XBLSM is a dual-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This surface-mount component provides galvanic isolation up to 5300Vrms and is designed for applications requiring electrical isolation between input and output circuits. The part is currently active in production with 758 units in stock. Substitute parts are identified based on identical electrical specifications, isolation ratings, channel configuration, and package compatibility within the TLP621-2 series.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLP621-2XBLSM
Manufacturer	Isocom Components 2004 LTD
Category	Optoisolators
Series	TLP621-2
Number of Channels	2
Voltage - Isolation	5300Vrms
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA
Output Type	Transistor
Voltage - Output (Max)	55V
Current - Output / Channel	50mA
Vce Saturation (Max)	400mV
Operating Temperature	-55°C ~ 100°C
Package / Case	8-SMD, Gull Wing
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

The TLP621-2XBLSM has three parametric equivalents within the TLP621-2 series: TLP621-2XGBSM, TLP621-2XGRSM, and TLP621-2XSM. These parts are direct substitutes based on the following criteria:

Substitution Basis:

Identical isolation voltage rating: 5300Vrms
Identical channel configuration: 2 channels
Identical current transfer ratio specifications: 50% (Min) to 600% (Max) @ 5mA
Identical output type: Transistor
Identical maximum output voltage: 55V
Identical maximum output current per channel: 50mA
Identical Vce saturation: 400mV maximum
Identical operating temperature range: -55°C ~ 100°C
Identical package type: 8-SMD, Gull Wing
Identical mounting type: Surface Mount
Identical compliance status: ROHS3 Compliant, REACH Unaffected

All substitute parts belong to the same TLP621-2 series and maintain full electrical and mechanical compatibility with the main part.

Parameter Comparison

Parameter	TLP621-2XBLSM	TLP621-2XGBSM	TLP621-2XGRSM	TLP621-2XSM
Manufacturer	Isocom Components 2004 LTD	Isocom Components 2004 LTD	Isocom Components 2004 LTD	Isocom Components 2004 LTD
Series	TLP621-2	TLP621-2	TLP621-2	TLP621-2
Number of Channels	2	2	2	2
Voltage - Isolation	5300Vrms	5300Vrms	5300Vrms	5300Vrms
Current Transfer Ratio (Min)	50% @ 5mA	50% @ 5mA	50% @ 5mA	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA	600% @ 5mA	600% @ 5mA	600% @ 5mA
Output Type	Transistor	Transistor	Transistor	Transistor
Voltage - Output (Max)	55V	55V	55V	55V
Current - Output / Channel	50mA	50mA	50mA	50mA
Vce Saturation (Max)	400mV	400mV	400mV	400mV
Operating Temperature	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active
Inventory (Pcs)	758	665	860	718

Engineering Selection Recommendations

All substitute parts (TLP621-2XGBSM, TLP621-2XGRSM, TLP621-2XSM) are active products with full ROHS3 compliance and REACH unaffected status, matching the compliance profile of the TLP621-2XBLSM. Selection among these equivalents may be based on inventory availability and lead time requirements. The TLP621-2XGRSM currently has the highest inventory level at 860 units, while TLP621-2XGBSM has 665 units and TLP621-2XSM has 718 units. All parts maintain identical electrical performance and mechanical compatibility for direct substitution in existing designs.

Frequently Asked Questions (FAQ)

Q: Can TLP621-2XGBSM, TLP621-2XGRSM, and TLP621-2XSM be used as direct replacements for TLP621-2XBLSM?

A: Yes. All three substitute parts are parametric equivalents with identical isolation voltage (5300Vrms), channel configuration (2 channels), current transfer ratio specifications, output characteristics, and package type (8-SMD, Gull Wing). They are fully compatible for direct substitution.

Q: Are there any differences in electrical performance between the main part and substitute parts?

A: No. The TLP621-2XBLSM and all substitute parts share identical electrical specifications including current transfer ratio range (50% to 600% @ 5mA), maximum output voltage (55V), maximum output current per channel (50mA), and Vce saturation (400mV).

Q: Do all parts have the same package and mounting requirements?

A: Yes. All parts use the 8-SMD, Gull Wing package with surface mount configuration, ensuring identical PCB layout and assembly process compatibility.

Q: What compliance certifications apply to these substitute parts?

A: All parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the TLP621-2XBLSM.

Q: Are there inventory or availability differences between the substitute parts?

A: Yes. Current inventory levels vary: TLP621-2XGRSM (860 units), TLP621-2XSM (718 units), and TLP621-2XGBSM (665 units). Selection may be influenced by lead time and stock availability requirements.

Q: What is the operating temperature range for these optoisolators?

A: All parts operate across the identical temperature range of -55°C to 100°C, supporting applications in both industrial and consumer environments.

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