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Equivalent & Substitute Parts Reference for SLDN-40E1ALG
Part Overview
The SLDN-40E1ALG, manufactured by Bel Power Solutions, is a Non-Isolated Point of Load (PoL) DC-DC Converter module featuring a single output with adjustable voltage of 0.45–2V, 40A output current, and 80W power capability. This active device is used in ITE (Commercial) applications, supports remote control functions, and is RoHS3 compliant. Identifying approved substitute parts is essential to ensure continuous supply, maintain manufacturing flexibility, and support multiple sourcing initiatives for this product category.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Manufacturer | Type | Number of Outputs | Voltage - Input (Min) | Voltage - Input (Max) | Voltage - Output 1 | Current - Output (Max) | Power (Watts) | Applications | Features | Operating Temperature | Efficiency | Mounting Type | Package / Case | Size / Dimension | RoHS Status | Moisture Sensitivity Level (MSL) | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SLDN-40E1ALG | Bel Power Solutions | Non-Isolated PoL Module | 1 | 4.5V | 14.4V | 0.45 ~ 2V | 40A | 80W | ITE (Commercial) | Remote On/Off, OCP, OTP | -40°C ~ 85°C | 91.5% | Surface Mount | 19-SMD Module | 1.30" x 0.53" x 0.43" (33.0mm x 13.5mm x 10.9mm) | ROHS3 Compliant | 2 (1 Year) | Active |
| MDT040A0X3-SRPHZ | OmniOn Power | Non-Isolated PoL Module, Digital | 1 | 4.5V | 14.4V | 0.45 ~ 2V | 40A | - | ITE (Commercial) | Remote On/Off, OCP, OTP, UVLO | -40°C ~ 105°C | 91.5% | Surface Mount | 19-SMD Module | 1.30" x 0.53" x 0.43" (33.0mm x 13.5mm x 10.9mm) | RoHS Compliant | 2A (4 Weeks) | Active |
Substitute Part Grouping Explanation
Substitute parts are grouped strictly by cross-matching the following key parameters: output voltage range, output current rating, input voltage range, device type, number of outputs, mounting configuration, package/case dimensions, operating temperature range, efficiency, feature set, RoHS compliance, Moisture Sensitivity Level (MSL), and product status. Only parts matching all mandatory electrical, mechanical, and compliance criteria are listed as substitutes.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Type | Number of Outputs | Voltage - Input (Min) | Voltage - Input (Max) | Voltage - Output 1 | Current - Output (Max) | Applications | Features | Operating Temperature | Efficiency | Mounting Type | Package / Case | Size / Dimension | RoHS Status | Moisture Sensitivity Level (MSL) | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SLDN-40E1ALG | Bel Power Solutions | Non-Isolated PoL Module | 1 | 4.5V | 14.4V | 0.45 ~ 2V | 40A | ITE (Commercial) | Remote On/Off, OCP, OTP | -40°C ~ 85°C | 91.5% | Surface Mount | 19-SMD Module | 1.30" x 0.53" x 0.43" (33.0mm x 13.5mm x 10.9mm) | ROHS3 Compliant | 2 (1 Year) | Active |
| MDT040A0X3-SRPHZ | OmniOn Power | Non-Isolated PoL Module, Digital | 1 | 4.5V | 14.4V | 0.45 ~ 2V | 40A | ITE (Commercial) | Remote On/Off, OCP, OTP, UVLO | -40°C ~ 105°C | 91.5% | Surface Mount | 19-SMD Module | 1.30" x 0.53" x 0.43" (33.0mm x 13.5mm x 10.9mm) | RoHS Compliant | 2A (4 Weeks) | Active |
Engineering Selection Recommendations
Both SLDN-40E1ALG and MDT040A0X3-SRPHZ are listed as active and compliant with RoHS directives. Substitute selection is strictly based on identical output voltage, output current, input voltage, mechanical packaging, and compliance with environmental regulations. Both maintain matching mounting types and package dimensions suitable for direct interchange on compatible PCB footprints. Moisture Sensitivity Level (MSL) and product status must be considered per storage and assembly requirements.
Frequently Asked Questions (FAQ)
Q: What electrical criteria must substitute DC-DC converter modules meet for direct interchangeability with SLDN-40E1ALG?
A: Substitute DC-DC converters must match the voltage input/output range, number of outputs, output current, efficiency, and feature set exactly as provided in the key parameters.
Q: Are package and dimension differences allowed for direct substitutes?
A: Substitutes must match the mounting type, package/case (19-SMD Module), and physical dimensions (1.30" x 0.53" x 0.43" / 33.0mm x 13.5mm x 10.9mm) as specified for SLDN-40E1ALG.
Q: Is compliance status relevant when choosing substitutes for SLDN-40E1ALG?
A: Yes, RoHS compliance and applicable MSL, as specified, must be maintained to ensure environmental and process compatibility.
Q: Can substitute modules with a broader operating temperature range be considered?
A: Substitute parts must meet or exceed the required operating temperature range; exceeding the maximum rating is permissible when documented.
Q: Are substitute modules required to be currently active in manufacturer product catalogs?
A: Only substitute modules with active product status are considered valid for direct replacement.
Q: Do substitute modules require additional qualification for ITE (Commercial) applications?
A: Substitute modules must be identified with ITE (Commercial) as a supported application per parameter listings.
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