L0107MTRP4 TRIAC Equivalent & Substitute Parts

Part Overview

The L0107MTRP4 is a Logic-Sensitive Gate TRIAC rated for 600 V off-state voltage and 1 A on-state current in a surface mount SOT-223 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The L0107MTRP4 was manufactured by Littelfuse Inc. and is no longer in active production status.

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
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-261-4, TO-261AA
Supplier Device Package	SOT-223
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the L0107MTRP4 is determined by the following critical parameters:

Triac Type: Logic - Sensitive Gate
Voltage - Off State: 600 V (minimum requirement)
Current - On State (It (RMS)) (Max): 1 A (minimum requirement)
Voltage - Gate Trigger (Vgt) (Max): 1.3 V (maximum allowable)
Current - Gate Trigger (Igt) (Max): 5 mA (maximum allowable)
Current - Hold (Ih) (Max): 10 mA (maximum allowable)
Operating Temperature: -40°C ~ 125°C (TJ)
Mounting Type: Surface Mount
Package / Case: TO-261-4, TO-261AA
Supplier Device Package: SOT-223 or SC-73

Substitute parts are grouped into three categories: direct manufacturer equivalents (same part number variants), manufacturer-recommended alternatives (active production parts with matching or superior electrical characteristics), and parametric equivalents (parts meeting all critical electrical specifications).

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Off State	Current - On State (Max)	Voltage - Gate Trigger (Max)	Current - Gate Trigger (Max)	Current - Hold (Max)	Operating Temperature	Package	RoHS Status
L0107MTRP4	Littelfuse Inc.	Obsolete	600 V	1 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
L0107MTRP	Littelfuse Inc.	Active	600 V	1 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
Z0107MNT1G	Littelfuse Inc.	Active	600 V	1 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
Z0103MNT1G	Littelfuse	Active	600 V	1 A	1.3 V	3 mA	10 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
Z0109MNT1G	Littelfuse Inc.	Active	600 V	1 A	1.3 V	10 mA	10 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
Z0103MN 5AA4	STMicroelectronics	Active	600 V	1 A	1.3 V	3 mA	7 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
Z0107MN 5AA4	STMicroelectronics	Active	600 V	1 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
Z0109MN 5AA4	STMicroelectronics	Active	600 V	1 A	1.3 V	10 mA	10 mA	-40°C ~ 125°C	SOT-223	ROHS3 Compliant
Z0103MN0,135	WeEn Semiconductors	Active	600 V	1 A	1.3 V	3 mA	7 mA	-40°C ~ 125°C	SC-73	RoHS Compliant
Z0107MN0,135	WeEn Semiconductors	Active	600 V	1 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	SC-73	RoHS Compliant
MAC08MT1G	Littelfuse Inc.	Active	600 V	800 mA	2 V	10 mA	5 mA	-40°C ~ 110°C	SOT-223	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Preferred): L0107MTRP is the active production equivalent of L0107MTRP4. Both parts share identical electrical specifications and packaging. This part is manufactured by Littelfuse Inc. and maintains ROHS3 compliance.

Littelfuse Active Alternatives: Z0107MNT1G and Z0103MNT1G are active production parts from Littelfuse with matching 600 V / 1 A ratings and SOT-223 packaging. Z0107MNT1G provides identical gate trigger specifications (5 mA). Z0103MNT1G offers lower gate trigger current (3 mA) and is suitable where reduced gate drive is beneficial.

Cross-Manufacturer Equivalents: Z0107MN 5AA4 (STMicroelectronics) and Z0107MN0,135 (WeEn Semiconductors) provide parametric equivalence with matching 600 V / 1 A ratings and gate trigger specifications. Z0107MN0,135 uses SC-73 packaging instead of SOT-223; verify PCB footprint compatibility before selection. Both manufacturers maintain active production status and RoHS compliance.

Lower Current Alternative: MAC08MT1G is rated for 800 mA on-state current and 2 V gate trigger voltage. This part is suitable only for applications where the reduced current rating is acceptable and gate drive capability is not constrained.

Frequently Asked Questions (FAQ)

Q: Can L0107MTRP4 be directly replaced with L0107MTRP? A: Yes. L0107MTRP is the active production equivalent with identical electrical specifications (600 V, 1 A, 1.3 V gate trigger, 5 mA gate trigger current). The primary difference is packaging format (Tape & Reel vs. individual packaging).

Q: What is the difference between SOT-223 and SC-73 packages? A: Both are surface mount packages for TRIAC devices. SOT-223 and SC-73 have different physical footprints. Verify PCB layout compatibility before substituting parts with different package designations. Parts Z0103MN0,135 and Z0107MN0,135 use SC-73 packaging.

Q: Are STMicroelectronics and WeEn Semiconductors parts compatible with Littelfuse designs? A: Z0107MN 5AA4 (STMicroelectronics) and Z0107MN0,135 (WeEn Semiconductors) meet the electrical specifications of L0107MTRP4. Both are ROHS compliant and rated for 600 V / 1 A operation. Verify supplier certifications and lead time availability for your procurement timeline.

Q: Why is MAC08MT1G listed as a substitute if it has lower current rating? A: MAC08MT1G is a parametric alternative for applications where 800 mA on-state current is sufficient. It is not a direct replacement for 1 A designs. Use only if circuit requirements permit reduced current capacity.

Q: What does "Logic - Sensitive Gate" mean? A: Logic-Sensitive Gate TRIACs require lower gate trigger current (typically 3-10 mA) compared to standard TRIACs. This characteristic enables direct gate drive from logic-level circuits without additional driver stages.

Q: Are all substitute parts ROHS3 compliant? A: L0107MTRP, Z0107MNT1G, Z0103MNT1G, Z0109MNT1G, Z0103MN 5AA4, Z0107MN 5AA4, Z0109MN 5AA4, and MAC08MT1G are ROHS3 compliant. Z0103MN0,135 and Z0107MN0,135 are RoHS compliant. Verify compliance requirements for your application.

Q: What is the operating temperature range for each substitute? A: Littelfuse parts (L0107MTRP, Z0107MNT1G, Z0103MNT1G, Z0109MNT1G) and STMicroelectronics parts (Z0103MN 5AA4, Z0107MN 5AA4, Z0109MN 5AA4) operate from -40°C to 125°C. MAC08MT1G operates from -40°C to 110°C. WeEn Semiconductors parts (Z0103MN0,135, Z0107MN0,135) are rated to 125°C maximum junction temperature. Verify thermal requirements for your application environment.

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