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Q6025NH6TP Equivalent & Substitute Parts
Part Overview
The Q6025NH6TP is a Littelfuse Snubberless TRIAC Alternistor rated for 600 V off-state voltage and 25 A on-state current in a surface mount D2PAK (TO-263) package. This component is designed for AC switching applications requiring high current handling and thermal performance. The part is Active status and RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to availability, packaging format, or current rating optimization for specific circuit requirements.
Substiute Parts
Key Parameters
| Parameter | Q6025NH6TP |
|---|---|
| Manufacturer | Littelfuse Inc. |
| Triac Type | Alternistor - Snubberless |
| Voltage - Off State | 600 V |
| Current - On State (It RMS Max) | 25 A |
| Voltage - Gate Trigger (Vgt Max) | 1.3 V |
| Current - Gate Trigger (Igt Max) | 80 mA |
| Current - Hold (Ih Max) | 100 mA |
| Operating Temperature Range | -40°C to 125°C (TJ) |
| Package / Case | TO-263-3, D2PAK (2 Leads + Tab) |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution logic for the Q6025NH6TP is based on the following allowed parameters:
- Voltage Rating: All substitutes maintain 600 V off-state voltage to ensure compatibility with the same circuit voltage class
- Package Type: All substitutes use D2PAK (TO-263) surface mount package for PCB compatibility
- Triac Type: Substitutes are limited to Snubberless Alternistor or Logic Sensitive Gate types, both suitable for AC switching
- Operating Temperature: Substitutes with -40°C to 125°C or -40°C to 150°C ranges are acceptable
- Current Rating: Substitutes range from 8 A to 30 A on-state current; selection depends on circuit current requirements
- Gate Trigger Parameters: Vgt and Igt specifications must be compatible with gate drive circuitry
- Compliance: All substitutes maintain RoHS3 compliance and Active product status
STMicroelectronics Snubberless™ series TRIACs (T1235, T1635, T2035, T2535, T3050) and Logic Sensitive Gate TRIAC (T810) meet these criteria across multiple current ratings and packaging formats (Tube and Cut Tape/Digi-Reel).
Parameter Comparison
| Part Number | Manufacturer | Triac Type | Voltage (V) | Current (A) | Vgt Max (V) | Igt Max (mA) | Ih Max (mA) | Temp Range (°C) | Package | Packaging Format |
|---|---|---|---|---|---|---|---|---|---|---|
| Q6025NH6TP | Littelfuse | Alternistor - Snubberless | 600 | 25 | 1.3 | 80 | 100 | -40 to 125 | D2PAK | Tube |
| T1235-600G | STMicroelectronics | Alternistor - Snubberless | 600 | 12 | 1.3 | 35 | 35 | -40 to 125 | D2PAK | Tube |
| T1235-600G-TR | STMicroelectronics | Alternistor - Snubberless | 600 | 12 | 1.3 | 35 | 35 | -40 to 125 | D2PAK | Cut Tape / Digi-Reel |
| T1235H-6G-TR | STMicroelectronics | Alternistor - Snubberless | 600 | 12 | 1.0 | 35 | 35 | -40 to 150 | D2PAK | Cut Tape / Digi-Reel |
| T1635-600G | STMicroelectronics | Alternistor - Snubberless | 600 | 16 | 1.3 | 35 | 35 | -40 to 125 | D2PAK | Tube |
| T1635-600G-TR | STMicroelectronics | Alternistor - Snubberless | 600 | 16 | 1.3 | 35 | 35 | -40 to 125 | D2PAK | Cut Tape / Digi-Reel |
| T2035H-6G | STMicroelectronics | Alternistor - Snubberless | 600 | 20 | 1.0 | 35 | 35 | -40 to 150 | D2PAK | Tube |
| T2535-600G | STMicroelectronics | Alternistor - Snubberless | 600 | 25 | 1.3 | 35 | 80 | -40 to 125 | D2PAK | Tube |
| T2535-600G-TR | STMicroelectronics | Alternistor - Snubberless | 600 | 25 | 1.3 | 35 | 80 | -40 to 125 | D2PAK | Cut Tape / Digi-Reel |
| T3050H-6G | STMicroelectronics | Alternistor - Snubberless | 600 | 30 | 1.0 | 50 | 75 | -40 to 150 | D2PAK | Tube |
| T810-600G-TR | STMicroelectronics | Logic - Sensitive Gate | 600 | 8 | 1.3 | 10 | 15 | -40 to 125 | D2PAK | Cut Tape / Digi-Reel |
Engineering Selection Recommendations
Direct Equivalent (Same Current Rating): T2535-600G and T2535-600G-TR are direct equivalents to Q6025NH6TP, both rated for 25 A on-state current with identical 600 V voltage rating and D2PAK package. Both are Active status and RoHS3 compliant. Selection between Tube and Cut Tape/Digi-Reel packaging depends on procurement and assembly requirements.
Lower Current Substitutes (12 A to 20 A): T1235, T1635, and T2035 series parts are suitable when circuit current requirements are lower than 25 A. These maintain 600 V voltage rating and D2PAK package compatibility. T1235H-6G-TR and T2035H-6G offer extended operating temperature range to 150°C. Lower gate trigger current (Igt) specifications in these parts require gate drive circuit compatibility assessment.
Higher Current Substitute (30 A): T3050H-6G provides 30 A on-state current for applications requiring higher current capacity while maintaining 600 V rating and D2PAK package. Extended temperature range to 150°C and lower gate trigger voltage (1.0 V) are design considerations.
Alternative Triac Type (Sensitive Gate): T810-600G-TR is a Logic Sensitive Gate TRIAC rated for 8 A. This part type differs from the Snubberless Alternistor architecture and is suitable only for lower current applications with compatible gate drive requirements.
All recommended substitutes maintain RoHS3 compliance and Active product status consistent with the original Q6025NH6TP specification.
Frequently Asked Questions (FAQ)
Q: Can T2535-600G directly replace Q6025NH6TP? A: Yes. T2535-600G and T2535-600G-TR are direct substitutes with identical 25 A current rating, 600 V voltage rating, Snubberless Alternistor type, and D2PAK package. Both are Active status and RoHS3 compliant. The difference is packaging format: Tube versus Cut Tape/Digi-Reel.
Q: What is the difference between Tube and Cut Tape/Digi-Reel packaging? A: Tube packaging is used for manual handling and lower-volume assembly. Cut Tape (CT) and Digi-Reel packaging are used for automated pick-and-place assembly. Electrical specifications are identical; selection depends on assembly process requirements.
Q: Can I use a lower current rated TRIAC like T1235-600G instead of Q6025NH6TP? A: Only if your circuit current requirement is 12 A or less. The Q6025NH6TP is rated for 25 A; using a 12 A part in a 25 A circuit will cause thermal stress and failure. Current rating must match or exceed circuit requirements.
Q: What is the difference between Alternistor - Snubberless and Logic - Sensitive Gate TRIACs? A: Alternistor - Snubberless types are optimized for AC switching without external snubber networks. Logic - Sensitive Gate types (such as T810) have lower gate trigger current requirements and are designed for logic-level gate drive circuits. They are not interchangeable without circuit redesign.
Q: Does T1235H-6G-TR have better performance than T1235-600G? A: T1235H-6G-TR offers extended operating temperature range (-40°C to 150°C versus -40°C to 125°C) and lower gate trigger voltage (1.0 V versus 1.3 V). Selection depends on thermal environment and gate drive circuit specifications. Both are electrically equivalent for 12 A applications.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are RoHS3 compliant and Active status, matching the compliance profile of Q6025NH6TP.
Q: What is the significance of gate trigger parameters (Vgt and Igt)? A: Vgt (gate trigger voltage) and Igt (gate trigger current) determine the gate drive circuit requirements. Lower values require less gate drive power. Parts with different Vgt/Igt specifications may require gate drive circuit adjustment to ensure reliable triggering.
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