Q2006DH4RP TRIAC Alternistor Equivalent & Substitute Parts

Part Overview

The Q2006DH4RP is a snubberless TRIAC Alternistor manufactured by Littelfuse Inc., rated for 200 V off-state voltage and 6 A on-state current in a surface mount TO-252 (DPAK) package. 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 or active product status.

Substiute Parts

Q2006DH4RP

Littelfuse Inc.In Stock: 1230Q2006DH4RP Datasheet

Current PartRFQ

Q4006DH4RP

Littelfuse Inc.In Stock: 1049Q4006DH4RP Datasheet

UpgradeRFQ

Q6006DH4RP

Littelfuse Inc.In Stock: 863Q6006DH4RP Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Q2006DH4RP are selected based on the following criteria:

Maintained Parameters (Must Match):

• Triac Type: Alternistor - Snubberless
• Current - On State (It (RMS)) (Max): 6 A
• Voltage - Gate Trigger (Vgt) (Max): 1.3 V
• Current - Gate Trigger (Igt) (Max): 35 mA
• Current - Hold (Ih) (Max): 35 mA
• Current - Non Rep. Surge 50, 60Hz (Itsm): 55A, 65A
• Configuration: Single
• Operating Temperature: -40°C ~ 125°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Variable Parameter (Allows Substitution):

• Voltage - Off State: Higher voltage ratings (400 V, 600 V) are acceptable substitutes for 200 V applications, provided circuit design accommodates the higher voltage rating.

Parameter Comparison

Engineering Selection Recommendations

Q4006DH4RP (400 V Rating): This substitute provides a 400 V off-state voltage rating while maintaining all other electrical and mechanical specifications identical to the Q2006DH4RP. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Selection of this part is appropriate for applications where the circuit design can accommodate the higher voltage rating without performance degradation.

Q6006DH4RP (600 V Rating): This substitute provides a 600 V off-state voltage rating while maintaining all other electrical and mechanical specifications identical to the Q2006DH4RP. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Selection of this part is appropriate for applications requiring higher voltage margin or where the circuit design can accommodate the higher voltage rating.

Both substitute parts are manufactured by Littelfuse Inc. and share identical packaging, thermal characteristics, gate trigger parameters, and surge current ratings with the original Q2006DH4RP component.

Frequently Asked Questions (FAQ)

Q: Can Q4006DH4RP or Q6006DH4RP be used as direct replacements for Q2006DH4RP?

A: Yes, both parts are direct mechanical and electrical substitutes for the Q2006DH4RP in the TO-252 (DPAK) package. All gate trigger parameters, on-state current ratings, operating temperature range, and surge current specifications are identical. The primary difference is the off-state voltage rating, which is higher in the substitute parts.

Q: What is the significance of the higher voltage ratings in Q4006DH4RP and Q6006DH4RP?

A: The higher voltage ratings (400 V and 600 V respectively) indicate the maximum off-state voltage the TRIAC can withstand. These parts can be used in applications originally designed for the 200 V Q2006DH4RP without electrical performance changes, provided the circuit design does not introduce voltage stresses exceeding the component ratings.

Q: Are the substitute parts available in the same packaging?

A: Yes. Q4006DH4RP and Q6006DH4RP are both supplied in TO-252-3 (DPAK) surface mount packages with identical lead configurations and tab specifications as the Q2006DH4RP.

Q: What is the product status difference between the main part and substitutes?

A: The Q2006DH4RP is classified as obsolete, while both Q4006DH4RP and Q6006DH4RP are in active production. Active status ensures ongoing availability and manufacturing support.

Q: Do the substitute parts have the same RoHS and moisture sensitivity compliance?

A: Yes. All three parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), indicating identical environmental compliance and handling requirements.

Q: Are there any differences in gate trigger characteristics between these parts?

A: No. The Voltage - Gate Trigger (Vgt) (Max), Current - Gate Trigger (Igt) (Max), and Current - Hold (Ih) (Max) specifications are identical across all three parts at 1.3 V, 35 mA, and 35 mA respectively.