LX807ME TRIAC Equivalent & Substitute Parts

Part Overview

The LX807ME is a Logic - Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 800 mA on-state current in a Through Hole TO-92 package. This component is Active in product status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and thermal operating ranges to support design flexibility and supply chain alternatives.

Key Parameters

Parameter	LX807ME Specification
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	800 mA
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	5 mA
Operating Temperature Range	-40°C ~ 110°C (TJ)
Package / Case	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LX807ME are classified based on the following substitution criteria:

Direct Electrical Equivalents (MFR Recommended): Parts matching all critical electrical parameters including 600 V off-state voltage, 800 mA on-state current, 1.3 V gate trigger voltage, and 5 mA gate trigger current. These parts maintain identical functional performance in the same TO-92-3 package.

Higher Current Rated Equivalents (MFR Recommended): Parts with 600 V off-state voltage and 1 A on-state current rating, providing higher current capacity while maintaining 1.3 V gate trigger voltage and compatible gate trigger current specifications. These are suitable for applications requiring increased current headroom.

Parametric Equivalents: Parts with matching 600 V voltage and 800 mA current ratings but different packaging configurations or thermal ranges, suitable for applications where thermal or packaging flexibility is required.

All substitute parts maintain Through Hole mounting in TO-92-3 package configuration and ROHS3 compliance.

Parameter Comparison

Part Number	Manufacturer	Voltage - Off State	Current - On State (Max)	Vgt (Max)	Igt (Max)	Ih (Max)	Operating Temp Range	Package	Packaging Type
LX807ME	Littelfuse Inc.	600 V	800 mA	1.3 V	5 mA	5 mA	-40°C ~ 110°C	TO-92-3	Bulk
Z00607MA 5BL2	STMicroelectronics	600 V	800 mA	1.3 V	5 mA	5 mA	-40°C ~ 110°C	TO-92-3	Cut Tape (CT)
Z00607MA 1BA2	STMicroelectronics	600 V	800 mA	1.3 V	5 mA	5 mA	-40°C ~ 110°C	TO-92-3	Bulk
Z0103MA 1AA2	STMicroelectronics	600 V	1 A	1.3 V	3 mA	7 mA	-40°C ~ 125°C	TO-92-3	Bulk
Z0107MA 1AA2	STMicroelectronics	600 V	1 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	TO-92-3	Bulk
Z0109MA 1AA2	STMicroelectronics	600 V	1 A	1.3 V	10 mA	10 mA	-40°C ~ 125°C	TO-92-3	Bulk

Engineering Selection Recommendations

For Direct Replacement: Z00607MA 5BL2 and Z00607MA 1BA2 provide electrical equivalence to LX807ME with identical voltage, current, and gate trigger specifications. Both are ROHS3 compliant and Active in product status. Z00607MA 5BL2 is available in Cut Tape packaging, while Z00607MA 1BA2 is available in Bulk packaging.

For Higher Current Applications: Z0103MA 1AA2, Z0107MA 1AA2, and Z0109MA 1AA2 offer 1 A on-state current rating with extended operating temperature range to 125°C. These parts maintain 600 V voltage rating and 1.3 V gate trigger voltage. Selection among these three depends on gate trigger current and hold current requirements specific to the application circuit.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and Active product status, ensuring regulatory alignment and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can Z0103MA 1AA2, Z0107MA 1AA2, or Z0109MA 1AA2 be used as direct replacements for LX807ME?

A: These parts are functionally compatible substitutes with higher current rating (1 A vs. 800 mA) and extended temperature range (-40°C to 125°C vs. -40°C to 110°C). They maintain the same 600 V voltage and 1.3 V gate trigger specifications. Selection depends on whether the application requires the higher current capacity and extended thermal range.

Q: What is the difference between Z00607MA 5BL2 and Z00607MA 1BA2?

A: Both parts are electrical equivalents to LX807ME with identical specifications. The primary difference is packaging: Z00607MA 5BL2 is supplied in Cut Tape (CT) format, while Z00607MA 1BA2 is supplied in Bulk format. Choose based on procurement and assembly requirements.

Q: Are all substitute parts available in the same TO-92-3 package?

A: Yes, all listed substitute parts use the TO-226-3 / TO-92-3 (TO-226AA) Through Hole package, ensuring mechanical and electrical compatibility with LX807ME footprints.

Q: What are the key differences in gate trigger current among the 1 A rated parts?

A: Z0103MA 1AA2 has 3 mA maximum gate trigger current, Z0107MA 1AA2 has 5 mA, and Z0109MA 1AA2 has 10 mA. Lower gate trigger current reduces gate drive circuit power requirements, while higher values provide greater noise immunity. Select based on circuit design requirements.

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