Q2012NH5RP TRIAC Alternistor Equivalent & Substitute Parts

Part Overview

The Q2012NH5RP is a snubberless TRIAC Alternistor manufactured by Littelfuse Inc., rated for 200 V off-state voltage and 12 A on-state current in a surface mount TO-263 (D2PAK) package. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. Substitute parts must maintain compatibility across electrical ratings, thermal characteristics, and mechanical packaging to ensure direct replacement capability.

Substiute Parts

Q2012NH5RP

Littelfuse Inc.In Stock: 896Q2012NH5RP Datasheet

Current PartRFQ

BTA212B-600B,118

WeEn SemiconductorsIn Stock: 1041BTA212B-600B,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Q2012NH5RP is determined by the following critical parameters:

• Voltage Rating (Off State): The substitute must support the application voltage requirement. The Q2012NH5RP operates at 200 V; substitutes rated at higher voltages (600 V) are electrically compatible for applications designed for 200 V operation.
• Current Rating (On State): The substitute must match or exceed the 12 A on-state current requirement to maintain equivalent load-handling capability.
• Gate Trigger Characteristics: Vgt and Igt parameters must be within acceptable ranges to ensure reliable gate control with existing driver circuits.
• Package Compatibility: Surface mount D2PAK (TO-263) packaging ensures mechanical and thermal interface compatibility with existing PCB layouts.
• Configuration: Single TRIAC configuration is required for direct replacement.
• Compliance Standards: RoHS compliance status must be verified for regulatory requirements.

The BTA212B-600B,118 (WeEn Semiconductors) qualifies as a substitute based on matching current rating (12 A), package type (D2PAK), configuration (Single), and compliance certifications, despite its higher voltage rating of 600 V.

Parameter Comparison

Engineering Selection Recommendations

The BTA212B-600B,118 is an active product from WeEn Semiconductors and represents the primary substitute for the obsolete Q2012NH5RP. Selection is based on the following factors:

• Product Status: The substitute is active and in production, ensuring long-term availability and supply chain stability compared to the obsolete main part.
• Current Rating Equivalence: Both parts are rated for 12 A on-state current, providing equivalent load-handling capability.
• Package Compatibility: Identical D2PAK surface mount packaging allows direct PCB layout compatibility without redesign.
• Compliance Certifications: Both parts meet RoHS compliance requirements, with the substitute meeting current RoHS standards.
• Voltage Derating: The substitute's 600 V rating exceeds the main part's 200 V rating, providing additional voltage margin for applications operating at or below 200 V.
• Gate Trigger Parameters: The substitute's Vgt (1.5 V max) and Igt (50 mA max) are within acceptable tolerance of the main part, ensuring compatibility with existing gate drive circuits.

Frequently Asked Questions (FAQ)

Q: Can the BTA212B-600B,118 directly replace the Q2012NH5RP in existing designs?

A: Yes, for applications operating at or below 200 V. The substitute maintains equivalent on-state current (12 A), gate trigger characteristics, and D2PAK packaging. The higher voltage rating (600 V) does not prevent operation in 200 V applications and provides additional voltage margin.

Q: What is the significance of the voltage rating difference (200 V vs. 600 V)?

A: The substitute's higher voltage rating indicates it can withstand greater off-state voltages. In applications designed for 200 V operation, the 600 V-rated substitute operates safely with additional voltage headroom. This does not affect on-state current delivery or gate control characteristics.

Q: Are the gate trigger parameters compatible between the two parts?

A: Yes. The main part specifies Vgt (Max) of 1.3 V and Igt (Max) of 50 mA. The substitute specifies Vgt (Max) of 1.5 V and Igt (Max) of 50 mA. These parameters are sufficiently close to ensure compatibility with existing gate drive circuits designed for the original part.

Q: Does the operating temperature range difference affect substitution?

A: The main part specifies -40°C to 125°C; the substitute specifies 125°C (TJ). For applications operating within the substitute's specified range (up to 125°C), substitution is valid. Applications requiring operation below 0°C require verification of the substitute's low-temperature performance.

Q: Are both parts RoHS compliant?

A: Yes. The main part is ROHS3 compliant; the substitute is RoHS compliant. Both meet current regulatory requirements for hazardous substance restrictions.

Q: What is the moisture sensitivity level for both parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or reflow soldering processes.