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SQL48T15033-NDA0G Equivalent & Substitute Parts Reference
Part Overview
The SQL48T15033-NDA0G is an isolated DC/DC converter module manufactured by Bel Power Solutions, supplying a single 3.3V output at up to 15A, with an input range of 36V to 75V and a total power output of 50W. Its form factor is an 8-DIP Module, 1/8 Brick size, and it provides key functionality for ITE (Commercial) applications with remote control and protection features. This model is currently obsolete, necessitating engineering substitution to maintain supply continuity for existing designs.
Substiute Parts
Key Parameters
| Parameter | SQL48T15033-NDA0G Value |
|---|---|
| Type | Isolated Module |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 36V |
| Voltage - Input (Max) | 75V |
| Voltage - Output 1 | 3.3V |
| Current - Output (Max) | 15A |
| Power (Watts) | 50W |
| Voltage - Isolation | 2.25kV |
| Features | Remote On/Off, OCP, OTP, OVP, SCP, UVLO |
| Operating Temperature | -40°C ~ 85°C |
| Efficiency | 91% |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP Module, 1/8 Brick |
| Size / Dimension | 2.30" L x 0.90" W x 0.38" H |
| Control Features | Enable, Active Low |
| RoHS Status | ROHS3 Compliant |
| MSL | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Direct and recommended substitute parts are chosen strictly by matching core electrical, mechanical, and compliance characteristics. The selection is limited to modules that:
- Are isolated DC/DC converters
- Provide a single output at 3.3V, 15A, 50W
- Have input voltage ranges that fully or partially overlap
- Offer matching protection and control features
- Are packaged in the same 8-DIP Module, 1/8 Brick format
- Match mounting type and size/dimension constraints
- Are compliant with RoHS3 and REACH regulations, and have equivalent MSL ratings
Grouping is justified only where these explicit parameters are matched.
Parameter Comparison
| Parameter | SQL48T15033-NDA0G | 0RCB-60T03C | 0RCY-60U03L |
|---|---|---|---|
| Manufacturer | Bel Power Solutions | Bel Fuse Inc. | Bel Fuse Inc. |
| Type | Isolated Module | Isolated Module | Isolated Module |
| Number of Outputs | 1 | 1 | 1 |
| Voltage - Input (Min) | 36V | 36V | 18V |
| Voltage - Input (Max) | 75V | 75V | 75V |
| Voltage - Output 1 | 3.3V | 3.3V | 3.3V |
| Current - Output (Max) | 15A | 15A | 15A |
| Power (Watts) | 50W | 50W | 50W |
| Voltage - Isolation | 2.25kV | 1.5kV | 1.5kV |
| Features | Remote On/Off, OCP, OTP, OVP, SCP, UVLO | Remote On/Off, OCP, OTP, OVP, SCP, UVLO | Remote On/Off, OCP, OTP, OVP, SCP, UVLO |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Efficiency | 91% | 90% | 90.2% |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Package / Case | 8-DIP Module, 1/8 Brick | 8-DIP Module, 1/8 Brick | 8-DIP Module, 1/8 Brick |
| Size / Dimension | 2.30" L x 0.90" W x 0.38" H | 2.30" L x 0.90" W x 0.37" H | 2.30" L x 0.90" W x 0.49" H |
| Control Features | Enable, Active Low | Enable, Active High | Enable, Active Low |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
All listed substitute DC/DC converter modules (0RCB-60T03C and 0RCY-60U03L) conform to RoHS3 and REACH regulations and maintain an unlimited Moisture Sensitivity Level. Both alternatives are active, ensuring continued supply, whereas the SQL48T15033-NDA0G is obsolete. Selection should follow matching compliance status and inventory availability for maintenance or new design use.
Frequently Asked Questions (FAQ)
Q: What electrical parameters must match for a DC/DC converter module substitution?
A: Voltage and current ratings (input and output), output power, isolation voltage, and operational temperature range must be identical or within specified limits to ensure compatibility.
Q: Are differences in control features (Active Low vs. Active High) significant for substitution?
A: Selection depends on system-level compatibility with existing circuit logic. This parameter should match system requirements.
Q: Do all substitute modules fit the same physical mounting and size/dimension requirements?
A: All listed alternatives are provided in the 8-DIP Module, 1/8 Brick format with close dimensional tolerances.
Q: How do compliance attributes affect component selection?
A: Substitutes must be RoHS3 compliant and REACH unaffected, matching the regulatory requirements of the obsolete SQL48T15033-NDA0G.
Q: Does operating temperature need to be identical?
A: The substitutes listed operate in the same -40°C ~ 85°C range, ensuring environmental compatibility.
Q: Is isolation voltage critical in selecting a DC/DC converter substitute?
A: Isolation voltage must meet minimum application needs; substitutes listed provide 1.5kV compared to the original's 2.25kV. Selection must consider system-level isolation requirements.
Q: Are substitute modules currently available in inventory?
A: Both 0RCB-60T03C and 0RCY-60U03L show active inventory.
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