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Q2006F41 Equivalent & Substitute Parts
Part Overview
The Q2006F41 is a standard TRIAC rated for 200V off-state voltage and 6A on-state current in a TO-202 through-hole package. This component is classified as obsolete, making equivalent or substitute parts necessary for new designs or production continuity. The part operates across an industrial temperature range of -40°C to 125°C and is RoHS3 compliant.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | Q2006F41 |
| Manufacturer | Littelfuse |
| Category | Thyristors |
| Triac Type | Standard |
| Voltage - Off State | 200 V |
| Current - On State (It (RMS)) (Max) | 6 A |
| Voltage - Gate Trigger (Vgt) (Max) | 2.5 V |
| Current - Gate Trigger (Igt) (Max) | 25 mA |
| Current - Hold (Ih) (Max) | 50 mA |
| Mounting Type | Through Hole |
| Package / Case | TO-202 Long Tab |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| RoHS Status | RoHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the Q2006F41 is determined by the following critical parameters:
- Voltage Rating (Off-State): The substitute must equal or exceed 200V to maintain circuit protection margins
- Current Rating (On-State): The substitute must equal or exceed 6A to handle the design load
- Gate Trigger Characteristics: Vgt and Igt values determine gate sensitivity; substitutes with lower or equal values are acceptable
- Hold Current (Ih): Must be equal to or lower than the original specification
- Package Compatibility: Through-hole mounting is required; package form factor affects PCB layout
- Temperature Range: Operating temperature must cover the application's thermal requirements
- Compliance: RoHS3 compliance ensures regulatory alignment
The BT137-600E,127 is identified as a manufacturer-recommended substitute based on these parameters.
Parameter Comparison
| Parameter | Q2006F41 (Original) | BT137-600E,127 (Substitute) |
|---|---|---|
| Manufacturer | Littelfuse | WeEn Semiconductors |
| Triac Type | Standard | Logic - Sensitive Gate |
| Voltage - Off State | 200 V | 600 V |
| Current - On State (It (RMS)) (Max) | 6 A | 8 A |
| Voltage - Gate Trigger (Vgt) (Max) | 2.5 V | 1.5 V |
| Current - Gate Trigger (Igt) (Max) | 25 mA | 10 mA |
| Current - Hold (Ih) (Max) | 50 mA | 20 mA |
| Current - Non Rep. Surge 50, 60Hz (Itsm) | 65A, 80A | 65A, 71A |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-202 Long Tab | TO-220-3 |
| Operating Temperature | -40°C ~ 125°C (TJ) | 125°C (TJ) |
| RoHS Status | RoHS3 Compliant | RoHS3 Compliant |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The BT137-600E,127 meets the electrical requirements for substitution with the following considerations:
- Voltage Margin: The 600V rating exceeds the 200V requirement, providing additional circuit protection headroom
- Current Capacity: The 8A maximum on-state current exceeds the 6A requirement
- Gate Sensitivity: Lower Vgt (1.5V vs. 2.5V) and Igt (10mA vs. 25mA) indicate improved gate sensitivity, reducing gate drive requirements
- Hold Current: The 20mA hold current is lower than the original 50mA specification
- Active Status: The substitute is in active production, ensuring long-term availability and supply chain stability
- Compliance: Both parts are RoHS3 compliant, maintaining regulatory alignment
- Package Difference: The TO-220-3 package differs from the TO-202 Long Tab; PCB layout modification is required
Frequently Asked Questions (FAQ)
Q: Can the BT137-600E,127 directly replace the Q2006F41 without circuit modifications?
A: Electrical substitution is valid based on voltage, current, and gate trigger parameters. However, the package change from TO-202 Long Tab to TO-220-3 requires PCB layout modification. Gate drive circuits may benefit from the lower gate trigger requirements but do not require redesign.
Q: Why is the substitute rated for 600V when the original is 200V?
A: Higher voltage ratings provide additional safety margin and circuit protection. This is acceptable in substitution as long as the minimum voltage requirement (200V) is met. The higher rating does not degrade performance in 200V applications.
Q: What is the significance of the "Logic - Sensitive Gate" designation on the substitute?
A: This indicates the BT137-600E,127 has optimized gate trigger characteristics (lower Vgt and Igt values), making it easier to trigger with lower gate drive power. This is a functional improvement over the standard gate type.
Q: Are there any temperature range considerations?
A: The original part specifies -40°C to 125°C, while the substitute specifies 125°C maximum. For applications requiring operation below 0°C, the lower temperature limit of the substitute must be confirmed with the manufacturer.
Q: What is the impact of the different package types?
A: The TO-202 Long Tab and TO-220-3 packages have different pin configurations and thermal characteristics. TO-220-3 typically offers better heat dissipation. PCB footprint and mounting hardware must be redesigned accordingly.
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