Q2025J6TP TRIAC Alternistor Equivalent & Substitute Parts

Part Overview

The Q2025J6TP is a TRIAC Alternistor - Snubberless rated for 200 V off-state voltage with 25 A on-state current in a TO-218X isolated through-hole package, manufactured by Littelfuse Inc. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts maintain the same current rating and package configuration while offering higher voltage ratings and active product status.

Substiute Parts

Q2025J6TP

Littelfuse Inc.In Stock: 1158Q2025J6TP Datasheet

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Q4025J6TP

Littelfuse Inc.In Stock: 1351Q4025J6TP Datasheet

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Q6025J6TP

Littelfuse Inc.In Stock: 1321Q6025J6TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Q2025J6TP are qualified based on the following criteria:

• Current Rating: All substitutes maintain 25 A on-state current (It RMS) maximum
• Package Configuration: All substitutes use TO-218X-3 Isolated Tab through-hole package
• Mounting Type: All substitutes are through-hole mounted
• Gate Trigger Parameters: Voltage - Gate Trigger (Vgt) and Current - Gate Trigger (Igt) remain constant across all parts
• Hold Current: All substitutes maintain 100 mA maximum hold current (Ih)
• Operating Temperature: All substitutes operate within -40°C ~ 125°C range
• Voltage Rating: Substitutes are available at higher voltage ratings (400 V and 600 V) while maintaining all other electrical characteristics

The primary differentiator among substitute parts is the off-state voltage rating, which allows selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Q4025J6TP is suitable for applications requiring 400 V off-state voltage rating. This part carries active product status and ROHS3 compliance, providing long-term availability and regulatory alignment.

Q6025J6TP is suitable for applications requiring 600 V off-state voltage rating. This part carries active product status and ROHS3 compliance, providing long-term availability and regulatory alignment.

Both substitute parts are manufactured by Littelfuse Inc. and maintain identical electrical characteristics to the Q2025J6TP except for voltage rating. Selection between Q4025J6TP and Q6025J6TP depends on the maximum voltage the application circuit will encounter.

Frequently Asked Questions (FAQ)

Q: Can Q4025J6TP or Q6025J6TP be used as direct replacements for Q2025J6TP?

A: Yes, both parts are direct substitutes in terms of current rating, gate trigger characteristics, hold current, and package configuration. The primary difference is the off-state voltage rating. A higher-rated part (400 V or 600 V) can be used in a 200 V application without electrical performance degradation.

Q: What is the key difference between the three parts?

A: The off-state voltage rating is the primary differentiator. Q2025J6TP is rated for 200 V, Q4025J6TP for 400 V, and Q6025J6TP for 600 V. All other electrical and mechanical parameters remain identical.

Q: Are the packages identical across all three parts?

A: Yes, all three parts use the TO-218X-3 Isolated Tab through-hole package with identical pin configuration and mounting requirements.

Q: Why should I select a higher voltage-rated part?

A: Higher voltage-rated parts provide additional safety margin in applications where transient overvoltages may occur. However, selection should be based on actual circuit voltage requirements and design specifications.

Q: Are all parts RoHS compliant?

A: Yes, all three parts are ROHS3 compliant and have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: What is the product status difference?

A: Q2025J6TP is obsolete, while Q4025J6TP and Q6025J6TP are active products. Active products have guaranteed long-term availability and manufacturing support.