DC780R-472L

Part Overview

The DC780R-472L is a 4.7 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc. This component is rated for 11.4 A continuous current with a maximum DC resistance of 5 mOhm, suitable for through-hole mounting applications in radial, vertical cylinder configuration. The part is active and available with 955 units in stock. Alternative models are identified to provide design flexibility for procurement, qualification, and production planning purposes.

Substiute Parts

DC780R-472L

API Delevan Inc.In Stock: 1028DC780R-472L Datasheet

Current PartRFQ

1120-4R7M-RC

Bourns Inc.In Stock: 14071120-4R7M-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The identification of substitute parts is based on strict equivalence across the following critical parameters:

• Inductance Value: 4.7 µH (common specification across all parts)
• Current Rating: 11.4 A continuous current capacity
• DC Resistance: 5 mOhm maximum
• Core Type: Drum core, wirewound, ferrite material
• Shielding: Unshielded configuration
• Mounting Configuration: Through-hole, radial, vertical cylinder package
• Frequency Reference: 1 kHz inductance measurement standard

Substitution is permissible when parts maintain these core electrical and mechanical characteristics. Secondary variations such as inductance tolerance, saturation current, and operating temperature range may differ within acceptable engineering margins but do not preclude substitutability for the defined application.

Parameter Comparison

Engineering Selection Recommendations

Both DC780R-472L and 1120-4R7M-RC are active products with ROHS3 compliance and REACH unaffected status. The DC780R-472L provides a higher upper operating temperature limit (125°C versus 105°C) and defined saturation current specification (50 A). The 1120-4R7M-RC offers greater inventory availability (1331 units in stock) with slightly larger physical dimensions within the same package category. Selection between these parts should be based on thermal requirements, saturation margin needs, and lead-time considerations. Both parts satisfy the specified electrical and mechanical requirements for through-hole drum core wirewound inductor applications at 4.7 µH with 11.4 A current rating.

Frequently Asked Questions (FAQ)

Q: Can the 1120-4R7M-RC replace the DC780R-472L in existing designs?

A: Yes, provided that the application does not require the maximum saturation current specification (50 A) of the DC780R-472L and operating temperatures remain below 105°C. The inductance value, current rating, and DC resistance are identical. Physical dimensions are within acceptable tolerance for standard through-hole mounting.

Q: What is the impact of different inductance tolerances (±15% versus ±20%)?

A: The DC780R-472L specifies ±15% tolerance while the 1120-4R7M-RC specifies ±20%. This difference affects the permissible inductance deviation from the nominal 4.7 µH value. Applications with tight inductance specifications may require the tighter tolerance of the DC780R-472L.

Q: Are there package compatibility concerns between these parts?

A: Both parts use identical package types (radial, vertical cylinder through-hole). Dimensions differ slightly: DC780R-472L is 0.772" diameter × 0.831" height; 1120-4R7M-RC is 0.810" diameter × 0.840" height. These variations are within standard PCB layout tolerances for through-hole components.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting applicable environmental and regulatory requirements for component selection.