L601E6 Equivalent & Substitute Parts

Part Overview

The L601E6 is a Logic-Sensitive Gate TRIAC rated for 600 V off-state voltage and 1 A on-state current in a Through Hole TO-92 package. This Littelfuse component is Active status and ROHS3 compliant. Equivalent and substitute parts are identified when circuit designs require alternative sourcing, inventory optimization, or when specific packaging or manufacturer preferences necessitate component replacement while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Triac Type	Logic - Sensitive Gate
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	1 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	10 mA
Configuration	Single
Operating Temperature	-65°C ~ 125°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the L601E6 TRIAC is determined by the following critical parameters:

Voltage Rating (Off State): 600 V minimum required
Current Rating (On State): 1 A or higher acceptable
Gate Trigger Voltage (Vgt): 1.3 V maximum
Gate Trigger Current (Igt): 5 mA maximum
Hold Current (Ih): 10 mA maximum
Package Type: TO-92 or TO-92-3 Through Hole configuration
Triac Type: Logic-Sensitive Gate topology

Substitute parts are grouped into two categories:

Parametric Equivalents maintain identical electrical specifications across all critical parameters and are direct replacements without circuit modification.

Manufacturer Recommended Substitutes are STMicroelectronics parts that meet or exceed the L601E6 specifications within the allowed parameter ranges. These parts are qualified alternatives when the primary part is unavailable.

Parameter Comparison

Part Number	Manufacturer	Voltage - Off State	Current - On State (Max)	Vgt (Max)	Igt (Max)	Ih (Max)	Operating Temp	Package	Packaging Type
L601E6	Littelfuse Inc.	600 V	1 A	1.3 V	5 mA	10 mA	-65°C ~ 125°C	TO-92-3	Bulk
L601E5	Littelfuse Inc.	600 V	1 A	1.3 V	5 mA	10 mA	-65°C ~ 125°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)
Z0103MA 1AA2	STMicroelectronics	600 V	1 A	1.3 V	3 mA	7 mA	-40°C ~ 125°C	TO-92-3	Bulk
Z0103MA 2AL2	STMicroelectronics	600 V	1 A	1.3 V	3 mA	7 mA	-40°C ~ 125°C	TO-92-3	Cut Tape (CT)
Z0103MA 5AL2	STMicroelectronics	600 V	1 A	1.3 V	3 mA	7 mA	-40°C ~ 125°C	TO-92-3	Cut Tape (CT)
Z0107MA 5AL2	STMicroelectronics	600 V	1 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	TO-92-3	Cut Tape (CT)
Z0109MA 1AA2	STMicroelectronics	600 V	1 A	1.3 V	10 mA	10 mA	-40°C ~ 125°C	TO-92-3	Bulk
Z0109MA 2AL2	STMicroelectronics	600 V	1 A	1.3 V	10 mA	10 mA	-40°C ~ 125°C	TO-92-3	Cut Tape (CT)
Z0109MA 5AL2	STMicroelectronics	600 V	1 A	1.3 V	10 mA	10 mA	-40°C ~ 125°C	TO-92-3	Cut Tape (CT)

Engineering Selection Recommendations

Direct Parametric Equivalent: L601E5 is the primary equivalent to L601E6, maintaining identical electrical specifications and operating temperature range. Both parts are Littelfuse products with ROHS3 compliance and Active product status.

STMicroelectronics Z-Series Alternatives: The Z0103MA, Z0107MA, and Z0109MA series parts meet the 600 V, 1 A core requirements with ROHS3 compliance and Active status. These parts operate within the -40°C to 125°C temperature range, which covers the L601E6 operating window above -40°C.

Current Derating Consideration: Z00607MA 5BL2 is rated for 800 mA on-state current, below the 1 A specification of L601E6. This part is suitable only for applications where the circuit current demand does not exceed 800 mA.

Gate Trigger Parameter Variations: Z0103MA series parts specify 3 mA maximum gate trigger current, lower than the L601E6 specification of 5 mA. Z0107MA 5AL2 matches the 5 mA specification. Z0109MA series parts specify 10 mA maximum gate trigger current, higher than L601E6. These variations remain within acceptable substitution parameters for Logic-Sensitive Gate TRIAC applications.

Packaging Format: All substitute parts are available in TO-92-3 Through Hole configuration. Packaging type (Bulk, Cut Tape) does not affect electrical compatibility and is selected based on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can Z00607MA 5BL2 replace L601E6 in all applications?

A: Z00607MA 5BL2 is rated for 800 mA maximum on-state current, compared to L601E6 at 1 A. This part is suitable only for circuits where the RMS current does not exceed 800 mA. Applications requiring the full 1 A rating must use L601E5, Z0103MA, Z0107MA, or Z0109MA series parts.

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

A: All three series maintain 600 V, 1 A core specifications. The primary difference is gate trigger current: Z0103MA specifies 3 mA maximum, Z0107MA specifies 5 mA maximum (matching L601E6), and Z0109MA specifies 10 mA maximum. Selection depends on circuit gate drive requirements.

Q: Are Cut Tape (CT) and Bulk packaging electrically equivalent?

A: Yes. Packaging format (Cut Tape or Bulk) affects procurement and assembly logistics only. Electrical specifications and component performance are identical between packaging types of the same part number.

Q: Can L601E6 be used in applications designed for Z0109MA 2AL2?

A: Yes. L601E6 specifies 5 mA maximum gate trigger current, which is lower than Z0109MA 2AL2 at 10 mA. The L601E6 will operate in circuits designed for Z0109MA 2AL2 with improved gate sensitivity.

Q: What is the temperature operating range difference between L601E6 and STMicroelectronics substitutes?

A: L601E6 operates from -65°C to 125°C. STMicroelectronics Z-series parts operate from -40°C to 125°C. For applications requiring operation below -40°C, L601E6 or L601E5 must be used.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. L601E6, L601E5, and all STMicroelectronics Z-series substitute parts listed are ROHS3 compliant with Active product status.

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