QJ4016RH3TP Equivalent & Substitute Parts

Part Overview

The QJ4016RH3TP is a Littelfuse Alternistor-type TRIAC rated for 400 V off-state voltage and 16 A on-state current in a Through Hole TO-220AB package. This snubberless design is actively produced and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for circuit applications where the original part is unavailable or inventory constraints necessitate alternative sourcing.

Substiute Parts

QJ4016RH3TP

LittelfuseIn Stock: 755QJ4016RH3TP Datasheet

Current PartRFQ

MAC223A6,127

WeEn SemiconductorsIn Stock: 6736MAC223A6,127 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QJ4016RH3TP is determined by the following critical parameters:

• Voltage Rating (Off State): Must equal or exceed 400 V
• Current Rating (On State): Must equal or exceed 16 A RMS
• Package Type: Must be TO-220-3 (Through Hole)
• Gate Trigger Voltage (Vgt): Must be compatible with circuit gate drive requirements
• Gate Trigger Current (Igt): Must be compatible with circuit gate drive capability
• Operating Temperature Range: Must support the application's thermal environment
• Compliance Status: Must maintain ROHS3 compliance for regulated applications

The MAC223A6,127 qualifies as a substitute because it meets or exceeds the voltage and current requirements, maintains the same TO-220AB package configuration, and holds equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MAC223A6,127 is suitable as a substitute for the QJ4016RH3TP in applications where the following conditions are met:

• Circuit design accommodates the higher on-state current rating (25 A vs. 16 A)
• Gate drive circuit can supply up to 50 mA gate trigger current
• Gate trigger voltage tolerance of 1.5 V maximum is acceptable for the application
• Thermal management design accounts for the operating temperature range up to 125°C
• Both parts maintain ROHS3 compliance and are suitable for regulated environments

The MAC223A6,127 provides higher current capacity and surge rating, making it applicable in designs where the QJ4016RH3TP current specifications are limiting factors. Both parts are active products with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can the MAC223A6,127 be used as a direct replacement for the QJ4016RH3TP?

A: Yes, provided the circuit design accommodates the higher gate trigger current requirement (50 mA vs. 20 mA) and the slightly higher gate trigger voltage (1.5 V vs. 1.3 V). The TO-220AB package pinout is identical, and both parts meet the same compliance standards.

Q: What is the primary difference between these two TRIAC types?

A: The QJ4016RH3TP is an Alternistor-type snubberless TRIAC, while the MAC223A6,127 is a standard TRIAC. The MAC223A6,127 has higher on-state current capacity (25 A vs. 16 A) and higher surge current ratings, making it suitable for higher-power applications.

Q: Are there thermal considerations when substituting these parts?

A: The QJ4016RH3TP operates to 150°C junction temperature, while the MAC223A6,127 operates to 125°C. Thermal design must ensure the MAC223A6,127 does not exceed its maximum junction temperature in the application environment.

Q: Do both parts require the same PCB footprint?

A: Yes. Both parts use the TO-220-3 package with identical pin spacing and mounting hole configuration, allowing direct PCB footprint compatibility.

Q: Are there compliance differences between these parts?

A: Both parts are ROHS3 compliant. The MAC223A6,127 is REACH Affected, while the QJ4016RH3TP is REACH Unaffected. Applications subject to REACH regulations should verify applicability.