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L6004D3RP TRIAC Equivalent & Substitute Parts
Part Overview
The L6004D3RP is a Logic - Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 4 A on-state current in a Surface Mount TO-252 (DPAK) package. This component is Active in product status and widely used in AC switching applications requiring sensitive gate triggering characteristics. Substitute parts are identified based on matching electrical specifications, package compatibility, and operational parameters to ensure functional equivalence in circuit applications.
Substiute Parts
Key Parameters
| Parameter | L6004D3RP Value |
|---|---|
| Voltage - Off State | 600 V |
| Current - On State (It (RMS)) (Max) | 4 A |
| Voltage - Gate Trigger (Vgt) (Max) | 1.3 V |
| Current - Gate Trigger (Igt) (Max) | 3 mA |
| Current - Hold (Ih) (Max) | 5 mA |
| Current - Non Rep. Surge 50, 60Hz (Itsm) | 33A, 40A |
| Operating Temperature Range | -40°C ~ 110°C (TJ) |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Mounting Type | Surface Mount |
| Configuration | Single |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the L6004D3RP are grouped based on the following substitution criteria:
Primary Substitution Parameters:
- Voltage - Off State: 600 V (exact match required)
- Current - On State (It (RMS)) (Max): 4 A (exact match required for direct substitution)
- Voltage - Gate Trigger (Vgt) (Max): 1.3 V (exact match required)
- Package / Case: TO-252-3, DPAK (exact match required)
- Mounting Type: Surface Mount (exact match required)
- Configuration: Single (exact match required)
Secondary Parameters (allowable variation):
- Current - Gate Trigger (Igt) (Max): 3 mA to 10 mA
- Current - Hold (Ih) (Max): 5 mA to 15 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm): 30A to 40A range
- Operating Temperature Range: -40°C minimum to 110°C or higher maximum
- Triac Type: Logic - Sensitive Gate (primary group) or Alternistor - Snubberless (secondary group with functional differences)
Grouping Categories:
Group 1: Direct Logic - Sensitive Gate Substitutes (4 A rated)
- MAC4DHMT4G, MAC4DLMT4G, MAC4DSMT4G, T405-600B, T405-600B-TR, T405Q-600B-TR, T410-600B
Group 2: Higher Current Rated Substitute (8 A rated)
- T810-600B (higher current capability, same voltage and package)
Group 3: Alternistor - Snubberless Type (different TRIAC technology)
- T435-600B, T435-600B-TR (snubberless technology, different gate trigger characteristics)
Parameter Comparison
| Part Number | Manufacturer | Voltage - Off State | Current - On State (It (RMS)) (Max) | Voltage - Gate Trigger (Vgt) (Max) | Current - Gate Trigger (Igt) (Max) | Current - Hold (Ih) (Max) | Current - Non Rep. Surge 50, 60Hz (Itsm) | Operating Temperature | Triac Type | Packaging | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L6004D3RP | Littelfuse Inc. | 600 V | 4 A | 1.3 V | 3 mA | 5 mA | 33A, 40A | -40°C ~ 110°C | Logic - Sensitive Gate | Tape & Reel (TR) | 4165 Pcs |
| MAC4DHMT4G | Littelfuse | 600 V | 4 A | 1.3 V | 5 mA | 15 mA | 40A @ 60Hz | -40°C ~ 110°C | Logic - Sensitive Gate | Tape & Reel (TR) | 119400 Pcs |
| MAC4DLMT4G | Littelfuse Inc. | 600 V | 4 A | 1.3 V | 3 mA | 15 mA | 40A @ 60Hz | -40°C ~ 110°C | Logic - Sensitive Gate | Tape & Reel (TR) | 30900 Pcs |
| MAC4DSMT4G | Littelfuse Inc. | 600 V | 4 A | 1.3 V | 10 mA | 15 mA | 40A @ 60Hz | -40°C ~ 125°C | Logic - Sensitive Gate | Tape & Reel (TR) | 19900 Pcs |
| T405-600B | STMicroelectronics | 600 V | 4 A | 1.3 V | 5 mA | 10 mA | 30A, 31A | -40°C ~ 125°C | Logic - Sensitive Gate | Tube | 4375 Pcs |
| T405-600B-TR | STMicroelectronics | 600 V | 4 A | 1.3 V | 5 mA | 10 mA | 30A, 31A | -40°C ~ 125°C | Logic - Sensitive Gate | Cut Tape (CT) & Digi-Reel® | 85400 Pcs |
| T405Q-600B-TR | STMicroelectronics | 600 V | 4 A | 1.3 V | 5 mA | 10 mA | 35A, 38A | -40°C ~ 125°C | Logic - Sensitive Gate | Cut Tape (CT) & Digi-Reel® | 50300 Pcs |
| T410-600B | STMicroelectronics | 600 V | 4 A | 1.3 V | 10 mA | 15 mA | 30A, 31A | -40°C ~ 125°C | Logic - Sensitive Gate | Tube | 1528 Pcs |
| T810-600B | STMicroelectronics | 600 V | 8 A | 1.3 V | 10 mA | 15 mA | 80A, 84A | -40°C ~ 125°C | Logic - Sensitive Gate | Tube | 6300 Pcs |
| T435-600B | STMicroelectronics | 600 V | 4 A | 1.3 V | 35 mA | 35 mA | 30A, 31A | -40°C ~ 125°C | Alternistor - Snubberless | Tube | 2300 Pcs |
| T435-600B-TR | STMicroelectronics | 600 V | 4 A | 1.3 V | 35 mA | 35 mA | 30A, 31A | -40°C ~ 125°C | Alternistor - Snubberless | Cut Tape (CT) & Digi-Reel® | 31100 Pcs |
Engineering Selection Recommendations
Littelfuse MAC4 Series (MAC4DHMT4G, MAC4DLMT4G, MAC4DSMT4G)
These parts maintain Littelfuse manufacturing continuity with the L6004D3RP. All three variants are ROHS3 Compliant and MSL 1 rated. MAC4DLMT4G provides the closest electrical match with identical Igt specification (3 mA) and is recommended for direct replacement in existing designs. MAC4DHMT4G and MAC4DSMT4G offer higher gate trigger current specifications (5 mA and 10 mA respectively) and extended temperature range to 125°C, suitable for applications requiring broader thermal performance. MAC4DSMT4G additionally extends operating temperature to 125°C maximum.
STMicroelectronics T405 Series (T405-600B, T405-600B-TR, T405Q-600B-TR)
These parts provide cross-manufacturer substitution with identical voltage, current, and gate trigger voltage specifications. T405-600B-TR and T405Q-600B-TR offer higher inventory availability and extended temperature range to 125°C. T405Q-600B-TR provides higher non-repetitive surge current (35A, 38A) compared to standard T405 variants (30A, 31A). All are ROHS3 Compliant and MSL 1 rated.
STMicroelectronics T410-600B
Functionally equivalent to L6004D3RP with 10 mA gate trigger current and 15 mA hold current. Extended temperature range to 125°C. ROHS3 Compliant and MSL 1 rated. Lower inventory availability (1528 Pcs).
STMicroelectronics T810-600B (Higher Current Alternative)
Rated for 8 A on-state current with proportionally higher surge current (80A, 84A). Maintains 600 V voltage and 1.3 V gate trigger voltage. Suitable for applications requiring higher current handling within the same package footprint. ROHS3 Compliant and MSL 1 rated.
STMicroelectronics T435 Series (T435-600B, T435-600B-TR)
Alternistor - Snubberless technology with significantly higher gate trigger current (35 mA) and hold current (35 mA). These parts employ different TRIAC technology optimized for snubberless operation. Suitable only for applications specifically designed for Alternistor characteristics. ROHS3 Compliant and MSL 1 rated.
Frequently Asked Questions (FAQ)
Q: Can MAC4DHMT4G directly replace L6004D3RP?
A: MAC4DHMT4G is functionally equivalent with matching voltage (600 V), current (4 A), and gate trigger voltage (1.3 V) specifications. Gate trigger current is 5 mA versus 3 mA on the L6004D3RP, and hold current is 15 mA versus 5 mA. These differences are within acceptable substitution parameters for Logic - Sensitive Gate TRIACs. Both are ROHS3 Compliant and MSL 1 rated.
Q: What is the difference between MAC4DLMT4G and MAC4DSMT4G?
A: Both parts match the L6004D3RP voltage and current ratings. MAC4DLMT4G has 3 mA gate trigger current (matching L6004D3RP) with REACH Affected status. MAC4DSMT4G has 10 mA gate trigger current and extends operating temperature to 125°C with REACH Unaffected status. Selection depends on gate sensitivity requirements and regulatory compliance needs.
Q: Can T810-600B replace L6004D3RP?
A: T810-600B is rated for 8 A on-state current versus 4 A on the L6004D3RP. While voltage and gate trigger specifications match, the higher current rating makes this a design upgrade rather than a direct substitute. Use only if the application circuit can accommodate 8 A rated components and requires higher current capability.
Q: What is the difference between T405-600B and T405Q-600B-TR?
A: Both parts are functionally equivalent with 600 V, 4 A, and 1.3 V specifications. T405Q-600B-TR provides higher non-repetitive surge current (35A, 38A) compared to T405-600B (30A, 31A). T405Q-600B-TR is supplied in Cut Tape & Digi-Reel® packaging with higher inventory availability (50300 Pcs).
Q: Why are T435 series parts listed as substitutes if they use different TRIAC technology?
A: T435 series parts employ Alternistor - Snubberless technology with significantly higher gate trigger current (35 mA) and hold current (35 mA). These parts are functionally different and suitable only for applications specifically designed for snubberless TRIAC operation. They are listed as alternatives for applications where snubberless characteristics provide circuit advantages.
Q: Are all substitute parts ROHS3 Compliant?
A: All listed substitute parts are ROHS3 Compliant. MAC4DLMT4G carries REACH Affected status, while all other parts are REACH Unaffected. Verify regulatory compliance requirements for your specific application region.
Q: What packaging options are available for substitutes?
A: L6004D3RP is supplied in Tape & Reel (TR) packaging. Littelfuse MAC4 series maintains TR packaging. STMicroelectronics T405 and T435 series offer both Tube and Cut Tape & Digi-Reel® packaging options. T810-600B is supplied in Tube packaging. Confirm packaging compatibility with assembly equipment requirements.
Q: Can I use parts with different operating temperature ranges?
A: L6004D3RP operates -40°C to 110°C. Most substitute parts extend to 125°C maximum, which is compatible for applications within the L6004D3RP temperature range. Use extended-range parts only if your circuit design requires operation above 110°C.
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