Q2X4RP TRIAC 200V 0.8A Equivalent & Substitute Parts

Part Overview

The Q2X4RP is a standard TRIAC manufactured by Littelfuse Inc., rated for 200V off-state voltage and 800mA on-state current in a DO-214 (Compak) surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The Q2X4RP operates across a temperature range of -40°C to 125°C and is ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level). Its gate trigger voltage is specified at 1.3V maximum, with gate trigger current at 25mA maximum and hold current at 25mA maximum.

Substiute Parts

Q2X4RP

Littelfuse Inc.In Stock: 817Q2X4RP Datasheet

Current PartRFQ

Q4X4RP

LittelfuseIn Stock: 1048Q4X4RP Datasheet

UpgradeRFQ

Q6X4RP

Littelfuse Inc.In Stock: 874Q6X4RP Datasheet

UpgradeRFQ

Z0109MN,135

WeEn SemiconductorsIn Stock: 1087Z0109MN,135 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Q2X4RP is determined by the following criteria:

Voltage Rating Compatibility: The Q2X4RP operates at 200V off-state voltage. Substitute parts with equal or higher voltage ratings (400V, 600V) are electrically compatible in applications where the circuit voltage does not exceed the substitute part's rating.

Current Rating Compatibility: The Q2X4RP is rated for 800mA on-state current (RMS). Substitute parts with equal or higher current ratings maintain functional compatibility.

Gate Trigger Parameters: Gate trigger voltage (Vgt) and gate trigger current (Igt) determine gate sensitivity. Parts with matching or lower Vgt and Igt values are compatible; parts with higher values may require circuit adjustment.

Package and Mounting: The Q2X4RP uses DO-214 (Compak) surface mount packaging. Substitutes must maintain the same or compatible package footprint for PCB assembly compatibility.

Temperature Range: The Q2X4RP operates from -40°C to 125°C. Substitute parts must support the same or wider temperature range for thermal compatibility.

Compliance and Status: Active product status ensures ongoing availability and support. ROHS3 compliance and MSL 1 rating are maintained across substitute options.

Parameter Comparison

Engineering Selection Recommendations

Q4X4RP (Littelfuse, 400V, 0.8A): This upgrade substitute maintains identical gate trigger parameters (Vgt 1.3V, Igt 25mA) and current rating (800mA) while doubling the voltage rating to 400V. The Q4X4RP is active product status with ROHS3 compliance. It is suitable for applications where circuit voltage does not exceed 400V and where the higher voltage margin provides design flexibility. Package compatibility is maintained with DO-214 (Compak) surface mount.

Q6X4RP (Littelfuse, 600V, 0.8A): This upgrade substitute provides the highest voltage rating at 600V while maintaining 800mA current rating and 1.3V gate trigger voltage. The Q6X4RP is active product status with ROHS3 compliance. It is suitable for high-voltage applications and provides maximum design margin. Package compatibility is maintained with DO-214 (Compak) surface mount.

Z0109MN,135 (WeEn Semiconductors, 600V, 1A): This manufacturer-recommended substitute is a logic-sensitive gate TRIAC with 600V rating and 1A on-state current. Gate trigger parameters are lower (Igt 10mA, Ih 10mA) compared to the Q2X4RP, indicating higher gate sensitivity. The Z0109MN,135 is active product status with RoHS compliance. This part uses a different package (SC-73 / TO-261-4) requiring PCB layout modification. It is suitable for applications requiring sensitive gate triggering and higher current capacity.

All substitute parts maintain MSL 1 (unlimited) moisture sensitivity level and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can Q4X4RP or Q6X4RP be used as direct replacements for Q2X4RP?

A: Yes, within voltage rating constraints. Q4X4RP and Q6X4RP maintain identical gate trigger voltage (1.3V), gate trigger current (25mA), hold current (25mA), and on-state current (800mA). They use the same DO-214 (Compak) package. The higher voltage ratings (400V and 600V respectively) are compatible with circuits designed for 200V operation. No circuit modification is required if the application voltage does not exceed the substitute part's rating.

Q: What is the difference between standard TRIAC and logic-sensitive gate TRIAC?

A: The Z0109MN,135 is classified as a logic-sensitive gate TRIAC, while Q2X4RP, Q4X4RP, and Q6X4RP are standard TRIACs. Logic-sensitive gate TRIACs have lower gate trigger current (Igt 10mA vs. 25mA) and lower hold current (Ih 10mA vs. 25mA), requiring less gate drive current for triggering. This makes them suitable for low-power gate drive circuits.

Q: Why does Z0109MN,135 use a different package?

A: The Z0109MN,135 uses SC-73 (TO-261-4) package instead of DO-214 (Compak). This package change requires PCB layout modification and cannot be used as a direct footprint replacement. However, it provides higher on-state current (1A vs. 800mA) and sensitive gate characteristics.

Q: Are all substitute parts RoHS compliant?

A: Yes. Q4X4RP and Q6X4RP are ROHS3 compliant. Z0109MN,135 is RoHS compliant. All parts maintain MSL 1 (unlimited) moisture sensitivity level.

Q: What is the temperature operating range for each substitute?

A: Q2X4RP, Q4X4RP, and Q6X4RP all operate from -40°C to 125°C. Z0109MN,135 is specified at 125°C maximum junction temperature. For applications requiring -40°C operation, Q4X4RP or Q6X4RP are required.

Q: Can Z0109MN,135 be used in place of Q2X4RP without circuit changes?

A: No. Z0109MN,135 requires package change (SC-73 vs. DO-214), has different gate trigger characteristics (lower Igt and Ih), and lacks the -40°C lower temperature limit. Circuit redesign and PCB layout modification are necessary.