Equivalent & Substitute Parts for L6X8E3AP

Part Overview

The L6X8E3AP 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 classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility within the allowed parameter ranges.

Key Parameters

Parameter	L6X8E3AP
Manufacturer	Littelfuse Inc.
Triac Type	Logic - Sensitive Gate
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)	3 mA
Current - Hold (Ih) (Max)	5 mA
Operating Temperature	-65°C ~ 110°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the L6X8E3AP are grouped based on the following criteria:

Group 1: Direct Electrical Equivalents (600 V, 800 mA)

Z00607MA 2BL2 and Z00607MA 5BL2 (STMicroelectronics) maintain identical voltage and current ratings with matching gate trigger specifications. These parts are interchangeable for applications requiring 800 mA on-state current.

Group 2: Higher Current Capability (600 V, 1 A)

Z0103MA 2AL2, Z0103MA 5AL2, Z0107MA 1AA2, Z0107MA 5AL2, Z0109MA 1AA2, Z0109MA 2AL2, and Z0109MA 5AL2 (STMicroelectronics) provide 1 A on-state current, exceeding the L6X8E3AP specification. These parts are suitable for applications where higher current capacity is beneficial or required.

Allowed Parameter Variations for Substitution:

Voltage - Off State: Must remain 600 V (no variation permitted)
Current - On State: 800 mA minimum; up to 1 A acceptable
Voltage - Gate Trigger (Vgt): 1.3 V maximum (no increase permitted)
Current - Gate Trigger (Igt): 3 mA to 10 mA range acceptable
Current - Hold (Ih): 5 mA to 10 mA range acceptable
Operating Temperature: -40°C to 125°C acceptable (meets or exceeds -65°C to 110°C requirement)
Package / Case: TO-92 or TO-92-3 acceptable
Mounting Type: Through Hole (no variation permitted)

Parameter Comparison

Parameter	L6X8E3AP	Z00607MA 2BL2	Z00607MA 5BL2	Z0103MA 2AL2	Z0103MA 5AL2	Z0107MA 1AA2	Z0107MA 5AL2	Z0109MA 1AA2	Z0109MA 2AL2	Z0109MA 5AL2
Manufacturer	Littelfuse Inc.	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	800 mA	800 mA	800 mA	1 A	1 A	1 A	1 A	1 A	1 A	1 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	3 mA	5 mA	5 mA	3 mA	3 mA	5 mA	5 mA	10 mA	10 mA	10 mA
Current - Hold (Ih) (Max)	5 mA	5 mA	5 mA	7 mA	7 mA	10 mA	10 mA	10 mA	10 mA	10 mA
Operating Temperature	-65°C ~ 110°C	-40°C ~ 110°C	-40°C ~ 110°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-226-3, TO-92-3 Formed Leads	TO-226-3, TO-92-3	TO-226-3, TO-92-3 Formed Leads	TO-226-3, TO-92-3 Formed Leads	TO-226-3, TO-92-3 Formed Leads	TO-226-3, TO-92-3	TO-226-3, TO-92-3	TO-226-3, TO-92-3	TO-226-3, TO-92-3	TO-226-3, TO-92-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity. Selection between substitute options depends on application-specific current requirements and operating temperature constraints.

For applications requiring exactly 800 mA on-state current, Z00607MA 2BL2 and Z00607MA 5BL2 provide direct electrical equivalence. These parts differ only in packaging format (Cut Tape) and inventory availability.

For applications where 1 A on-state current is acceptable or beneficial, Z0103MA, Z0107MA, and Z0109MA series parts offer expanded current capacity. Z0103MA variants maintain the lowest gate trigger current specification (3 mA), matching the L6X8E3AP. Z0107MA and Z0109MA variants accept higher gate trigger currents (5 mA and 10 mA respectively), which may require circuit design consideration but do not preclude substitution.

Operating temperature range expansion from -65°C to -40°C minimum is acceptable for most industrial applications. Applications requiring operation below -40°C must retain the L6X8E3AP or confirm circuit tolerance to the reduced lower temperature limit.

Frequently Asked Questions (FAQ)

Q: Can Z00607MA parts be used as direct replacements for L6X8E3AP?

A: Yes. Z00607MA 2BL2 and Z00607MA 5BL2 maintain identical voltage (600 V), current (800 mA), and gate trigger specifications (1.3 V maximum, 5 mA gate trigger current). The primary difference is packaging format and manufacturer (STMicroelectronics vs. Littelfuse Inc.). Both are Active status and ROHS3 compliant.

Q: What is the difference between Z0103MA, Z0107MA, and Z0109MA series?

A: All three series provide 1 A on-state current at 600 V. The primary differences are gate trigger current specifications: Z0103MA accepts 3 mA maximum (matching L6X8E3AP), Z0107MA accepts 5 mA maximum, and Z0109MA accepts 10 mA maximum. Hold current (Ih) also varies: Z0103MA at 7 mA, Z0107MA at 10 mA, and Z0109MA at 10 mA. Selection depends on circuit gate drive capability and hold current requirements.

Q: Are packaging variations (TO-92 vs. TO-92-3) interchangeable?

A: Yes. Both TO-92 and TO-92-3 designations refer to through-hole packages with compatible lead configurations and PCB footprints. The suffix variation indicates minor manufacturing or specification differences but does not affect mechanical or electrical interchangeability in standard applications.

Q: Can I use a 1 A rated part (Z0103MA, Z0107MA, Z0109MA) in place of the 800 mA L6X8E3AP?

A: Yes. Higher current rating provides design margin and does not create compatibility issues. The circuit will operate within the substitute part's specifications. This substitution is particularly suitable for applications where future current demand may increase or where design simplification through standardized components is beneficial.

Q: What is the impact of different operating temperature ranges?

A: The L6X8E3AP operates from -65°C to 110°C. Most substitute parts operate from -40°C to 110°C or -40°C to 125°C. If your application requires operation below -40°C, the L6X8E3AP must be retained. For standard industrial temperature ranges (-40°C to 85°C or -40°C to 125°C), all substitute parts are suitable.

Q: Does packaging format (Tape & Box, Cut Tape, Bulk) affect electrical performance?

A: No. Packaging format affects only handling, storage, and supply chain logistics. Electrical and mechanical specifications remain identical regardless of packaging format. Selection should be based on procurement volume and assembly process requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the L6X8E3AP compliance level. REACH status is Unaffected for all parts, confirming regulatory alignment.

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