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SJ6020R2ATP Equivalent & Substitute Parts
Part Overview
The SJ6020R2ATP is a 600V, 20A Standard Recovery Silicon Controlled Rectifier (SCR) in a TO-220-3 package manufactured by Littelfuse Inc. This thyristor device is rated for high-temperature operation from -40°C to 150°C and complies with RoHS3 and REACH requirements. The part is currently Active in production status with substantial inventory availability. Alternative models may be required to accommodate varying current ratings, SCR recovery types, or specific application constraints while maintaining voltage and thermal specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Off State | 600 | V |
| Current - On State (It RMS) | 20 | A |
| Current - On State (It AV) | 12.8 | A |
| Voltage - Gate Trigger (Vgt Max) | 1.5 | V |
| Current - Gate Trigger (Igt Max) | 10 | mA |
| Voltage - On State (Vtm Max) | 1.6 | V |
| Current - Hold (Ih Max) | 35 | mA |
| Current - Off State (Max) | 10 | µA |
| Current - Non Rep. Surge (50/60Hz) | 225A / 300A | A |
| SCR Type | Standard Recovery | — |
| Operating Temperature Range | -40°C to 150°C | °C |
| Package / Case | TO-220-3 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the SJ6020R2ATP are grouped based on electrical and mechanical compatibility within the following allowable parameters:
Off-State Voltage: All substitute parts maintain the 600V rating, which is mandatory for direct replacement in applications designed for this voltage class.
Package / Case: All substitute parts use the TO-220-3 package with TO-220AB supplier device package, ensuring mechanical and thermal compatibility with the original design.
Operating Temperature Range: All substitute parts operate across the identical -40°C to 150°C temperature range, maintaining thermal performance specifications.
Gate Trigger Parameters: All substitute parts maintain identical Vgt (Max) of 1.5V and Igt (Max) of 10mA, ensuring gate drive circuit compatibility.
On-State Voltage (Vtm) and Hold Current (Ih): All substitute parts maintain the same Vtm Max of 1.6V and Ih Max of 35mA.
Variable Current Ratings: Substitute parts are available with RMS current ratings of 16A (SJ6016R2TP, SV6016R2TP) and 25A (SJ6025R2TP), allowing selection based on application load requirements.
SCR Type Variation: The SV6016R2TP differs in SCR type (Sensitive Gate) compared to the Standard Recovery type of the main part, offering alternative gate sensitivity characteristics while maintaining all critical electrical parameters.
Parameter Comparison
| Parameter | SJ6020R2ATP | SJ6016R2TP | SJ6020R2TP | SJ6025R2TP | SV6016R2TP |
|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Voltage - Off State | 600V | 600V | 600V | 600V | 600V |
| Current - On State (It RMS) | 20A | 16A | 20A | 25A | 16A |
| Current - On State (It AV) | 12.8A | 10A | 12.8A | 16A | 10.2A |
| Voltage - Gate Trigger (Vgt Max) | 1.5V | 1.5V | 1.5V | 1.5V | 1.5V |
| Current - Gate Trigger (Igt Max) | 10mA | 10mA | 10mA | 10mA | 10mA |
| Voltage - On State (Vtm Max) | 1.6V | 1.6V | 1.6V | 1.6V | 1.6V |
| Current - Hold (Ih Max) | 35mA | 35mA | 35mA | 35mA | 35mA |
| Current - Off State (Max) | 10µA | 10µA | 10µA | 10µA | 10µA |
| Current - Non Rep. Surge (50/60Hz) | 225A / 300A | 188A / 225A | 225A / 300A | 300A / 350A | 188A / 225A |
| SCR Type | Standard Recovery | Standard Recovery | Standard Recovery | Standard Recovery | Sensitive Gate |
| Operating Temperature | -40°C to 150°C | -40°C to 150°C | -40°C to 150°C | -40°C to 150°C | -40°C to 150°C |
| Package / Case | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
SJ6020R2TP — Direct equivalent in Tube packaging. Identical electrical specifications and current ratings to SJ6020R2ATP. Selection recommended when Tube packaging is required instead of Tape packaging. Product Status: Active. RoHS3 Compliant. Full inventory availability (1329 Pcs).
SJ6016R2TP — Standard Recovery SCR with reduced 16A RMS current rating. Appropriate for applications with lower load requirements. Product Status: Active. RoHS3 Compliant. High inventory availability (1484 Pcs). Maintains identical gate trigger and on-state voltage characteristics.
SJ6025R2TP — Standard Recovery SCR with elevated 25A RMS current rating. Suitable for high-current applications. Product Status: Active. RoHS3 Compliant. Excellent inventory availability (2262 Pcs). Increased surge current capability (300A / 350A vs. 225A / 300A).
SV6016R2TP — Sensitive Gate variant with 16A RMS current rating. Different SCR type offers alternative gate sensitivity. Product Status: Active. RoHS3 Compliant. Good inventory availability (1900 Pcs). Identical thermal and voltage specifications with reduced current capacity.
Frequently Asked Questions (FAQ)
Q: Can SJ6020R2TP be used as a direct replacement for SJ6020R2ATP? A: Yes. Both parts share identical electrical specifications (600V, 20A RMS, Standard Recovery SCR type, -40°C to 150°C operating range) and TO-220-3 package. The difference is packaging format: SJ6020R2ATP is supplied in Tape, while SJ6020R2TP is supplied in Tube.
Q: What is the primary difference between SJ series and SV series SCRs? A: The SJ series uses Standard Recovery SCR type, while the SV series uses Sensitive Gate type. Both maintain identical off-state voltage (600V), gate trigger parameters (Vgt Max 1.5V, Igt Max 10mA), and on-state voltage characteristics (Vtm Max 1.6V). Selection depends on gate drive circuit requirements.
Q: Can I use SJ6016R2TP in an application designed for SJ6020R2ATP? A: SJ6016R2TP can be used only if the application load current does not exceed 16A RMS. All other electrical parameters are identical. Verify that the 16A RMS rating is sufficient for your application before substitution.
Q: Can I use SJ6025R2TP in an application designed for SJ6020R2ATP? A: Yes. SJ6025R2TP maintains all electrical parameters of the SJ6020R2ATP with higher current capacity (25A RMS vs. 20A RMS). Higher surge current capability (300A / 350A vs. 225A / 300A) provides additional margin. Direct substitution is permissible.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts (SJ6016R2TP, SJ6020R2TP, SJ6025R2TP, SV6016R2TP) carry ROHS3 Compliant status identical to SJ6020R2ATP. Moisture Sensitivity Level 1 (Unlimited) is maintained across all parts.
Q: What is the operating temperature range for all substitute parts? A: All substitute parts operate from -40°C to 150°C (TJ), identical to the SJ6020R2ATP. This ensures thermal performance consistency across the product family.
Q: Does package type (Tube vs. Tape) affect electrical performance? A: No. Package type is a supply format only and does not affect electrical or thermal performance. SJ6020R2ATP (Tape) and SJ6020R2TP (Tube) are electrically and mechanically identical.
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