DAS50F24 Equivalent & Substitute Parts

Part Overview

The DAS50F24 is an isolated PoE module DC-DC converter manufactured by Cosel USA, Inc., designed to convert high-voltage input (88V to 370V) to a regulated 24V output at 2.1A maximum current, delivering 50W of power. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system design and maintenance applications in commercial ITE environments.

The DAS50F24 operates across a wide input voltage range suitable for Power over Ethernet applications, with an operating temperature range of -10°C to 85°C and 82% efficiency. Due to its obsolete status, active alternative models from the same manufacturer provide functional equivalence with enhanced specifications and continued product support.

Substiute Parts

DAS50F24

Cosel USA, Inc.In Stock: 1003DAS50F24 Datasheet

Current PartRFQ

DHS50A24

Cosel USA, Inc.In Stock: 1006DHS50A24 Datasheet

SimilarRFQ

DHS50B24

Cosel USA, Inc.In Stock: 977DHS50B24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DAS50F24 are selected based on strict electrical and mechanical compatibility criteria. All substitute models maintain the following core parameters:

Mandatory Matching Parameters:

• Output voltage: 24V
• Maximum output current: 2.1A
• Power rating: 50W
• Manufacturer: Cosel USA, Inc.
• Mounting type: Through Hole
• Number of outputs: 1
• Application category: ITE (Commercial)

Substitution Logic:

The DAS50F24 operates across a wide input voltage range (88V - 370V). Substitute parts are grouped by their specific input voltage operating ranges, which determine their suitability for particular system designs:

1. DHS50A24: Operates at 60V - 160V input range. Suitable for lower-voltage PoE and industrial applications.
2. DHS50B24: Operates at 200V - 400V input range. Suitable for higher-voltage industrial and commercial applications.

Both substitute models are active products with enhanced specifications compared to the obsolete DAS50F24, including improved efficiency, extended operating temperature ranges, and ROHS3 compliance. The DHS50B24 additionally provides remote on/off control, overcurrent protection (OCP), overtemperature protection (OTP), and overvoltage protection (OVP).

Parameter Comparison

Engineering Selection Recommendations

DHS50A24 Selection Criteria:

The DHS50A24 is suitable for applications requiring input voltage operation between 60V and 160V. This substitute offers improved efficiency (86% versus 82%) and an extended operating temperature range (-40°C to 100°C versus -10°C to 85°C). The DHS50A24 maintains active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. The reduced package size (6-DIP versus 12-DIP) provides space optimization benefits for compact designs. This model is appropriate for lower-voltage industrial and commercial PoE applications.

DHS50B24 Selection Criteria:

The DHS50B24 is suitable for applications requiring input voltage operation between 200V and 400V. This substitute provides active product status with ROHS3 compliance and an extended operating temperature range (-40°C to 100°C). The DHS50B24 includes integrated protection features: remote on/off control, overcurrent protection (OCP), overtemperature protection (OTP), and overvoltage protection (OVP). The 6-DIP package reduces footprint compared to the DAS50F24. This model is appropriate for higher-voltage industrial and commercial applications requiring enhanced protection capabilities.

General Considerations:

Both substitute models are active products from the same manufacturer, ensuring design continuity and regulatory compliance. The transition from the obsolete DAS50F24 to either substitute requires verification that the specific input voltage range of the target application aligns with the selected substitute's operating range. Package size differences (12-DIP to 6-DIP) necessitate PCB layout evaluation for physical fit and thermal management considerations.

Frequently Asked Questions (FAQ)

Q: Can DHS50A24 and DHS50B24 be used interchangeably with DAS50F24?

A: No. While all three models share identical output specifications (24V, 2.1A, 50W), they operate across different input voltage ranges. DHS50A24 operates at 60V - 160V, DHS50B24 operates at 200V - 400V, and DAS50F24 operates at 88V - 370V. Selection depends on the specific input voltage range required by the application. The DAS50F24's wide input range (88V - 370V) overlaps both substitutes but does not perfectly match either. Direct substitution requires input voltage range verification.

Q: What are the physical differences between DAS50F24 and the substitute models?

A: The DAS50F24 uses a 12-DIP module package measuring 4.53" L x 2.28" W x 0.50" H (115.0mm x 58.0mm x 12.7mm). Both DHS50A24 and DHS50B24 use 6-DIP module packages measuring 2.30" L x 1.47" W x 0.50" H (58.4mm x 37.3mm x 12.7mm). The substitute models are significantly smaller, requiring PCB layout modifications for implementation.

Q: Are the substitute models RoHS compliant?

A: Yes. The DAS50F24 is RoHS Compliant. Both DHS50A24 and DHS50B24 are ROHS3 Compliant, representing an enhanced compliance standard. All three models meet environmental regulatory requirements for commercial applications.

Q: What is the temperature operating range difference?

A: The DAS50F24 operates from -10°C to 85°C with derating. Both DHS50A24 and DHS50B24 operate from -40°C to 100°C with derating, providing a wider operating temperature envelope suitable for extended environmental conditions.

Q: Does DHS50B24 offer additional features compared to DHS50A24?

A: Yes. The DHS50B24 includes remote on/off control, overcurrent protection (OCP), overtemperature protection (OTP), and overvoltage protection (OVP). The DHS50A24 does not list these integrated protection features. Feature selection depends on application requirements for system control and protection.

Q: What efficiency improvements do the substitute models provide?

A: The DAS50F24 operates at 82% efficiency. The DHS50A24 provides 86% efficiency, representing a 4% improvement. The DHS50B24 provides 83% efficiency, representing a 1% improvement. Higher efficiency reduces thermal dissipation and improves overall system power consumption characteristics.

Q: Can I use DHS50A24 in an application designed for DAS50F24 if the input voltage is within 60V - 160V range?

A: Electrical compatibility exists for input voltages within the 60V - 160V range. However, physical compatibility requires PCB layout modification due to package size differences (12-DIP to 6-DIP). Thermal management and mounting considerations must be evaluated for the specific application.

Q: What is the isolation voltage specification for these converters?

A: The DAS50F24 and DHS50A24 do not specify isolation voltage in the provided parameters. The DHS50B24 specifies 3 kV isolation voltage. Isolation voltage requirements for the target application must be verified before substitution.