CDH113NP-331KC Equivalent & Substitute Parts

Part Overview

The CDH113NP-331KC is a 330 µH unshielded wirewound inductor manufactured by Sumida America Components Inc., rated for 340 mA continuous current with a maximum DC resistance of 1.28 Ohm. This component is classified as obsolete product status. Due to its obsolete designation, locating equivalent or substitute parts with compatible electrical and mechanical specifications is necessary for ongoing design support, production continuity, and system maintenance applications.

Substiute Parts

CDH113NP-331KC

Sumida America Components Inc.In Stock: 700CDH113NP-331KC Datasheet

Current PartRFQ

CDH115NP-331KC

Sumida America Components Inc.In Stock: 1138CDH115NP-331KC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDH113NP-331KC is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 330 µH
• Inductance tolerance: ±10%
• Shielding configuration: Unshielded
• Mounting type: Surface Mount
• Physical footprint: 0.441" L x 0.433" W (11.20mm x 11.00mm)
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Allowable Variation Parameters:

• Current rating: Must equal or exceed 340 mA
• DC resistance: Must equal or be lower than 1.28 Ohm
• Operating temperature range: Must encompass or exceed -30°C ~ 100°C
• Height: May vary within mechanical assembly constraints
• Product status: Active status preferred for ongoing availability

The CDH115NP-331KC meets these substitution criteria through equivalent inductance, tolerance, shielding, mounting configuration, and compliance specifications, while offering improved current handling capacity and reduced DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The CDH115NP-331KC is a direct functional substitute for the obsolete CDH113NP-331KC based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical inductance (330 µH) and tolerance (±10%) at the 1 kHz test frequency. The CDH115NP-331KC provides superior electrical performance with 530 mA current rating versus 340 mA, and reduced DC resistance of 840 mOhm compared to 1.28 Ohm maximum. These improvements ensure the substitute part operates within or below the original design stress levels.

Mechanical Compatibility: Identical footprint dimensions (0.441" L x 0.433" W / 11.20mm x 11.00mm) and surface mount configuration ensure PCB layout compatibility. The increased seated height of 0.205" (5.20mm) versus 0.146" (3.70mm) requires verification of available vertical clearance in the assembly.

Compliance and Availability: Both parts are ROHS3 compliant with MSL 1 rating. The CDH115NP-331KC carries active product status with 1034 units in stock, ensuring long-term availability compared to the obsolete CDH113NP-331KC.

Temperature Performance: The CDH115NP-331KC operating range of -40°C ~ 100°C exceeds the original -30°C ~ 100°C specification, providing extended low-temperature capability.

Frequently Asked Questions (FAQ)

Q: Can the CDH115NP-331KC be used as a direct replacement for CDH113NP-331KC without circuit modifications?

A: Yes, the CDH115NP-331KC is electrically compatible as a direct substitute. Both parts share identical inductance (330 µH ±10%), unshielded configuration, and surface mount design. The substitute offers improved current handling and lower DC resistance. Physical clearance verification is required due to increased height (5.20mm vs 3.70mm).

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Current rating: CDH115NP-331KC supports 530 mA versus 340 mA; (2) DC resistance: CDH115NP-331KC has 840 mOhm versus 1.28 Ohm; (3) Core type: CDH115NP-331KC uses drum core construction versus standard wirewound; (4) Height: CDH115NP-331KC is 5.20mm versus 3.70mm; (5) Product status: CDH115NP-331KC is active versus obsolete.

Q: Are there any thermal or frequency performance concerns with substitution?

A: No thermal or frequency performance concerns exist based on provided specifications. Both parts operate across -30°C to 100°C minimum range. Inductance frequency test is identical at 1 kHz for both parts.

Q: What packaging options are available for the substitute part?

A: The CDH115NP-331KC is supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes. The original CDH113NP-331KC packaging format is not specified in available data.

Q: Is the height difference a critical factor for PCB assembly?

A: The height increase from 3.70mm to 5.20mm must be evaluated against available vertical clearance in the assembly. If clearance is limited, this substitution requires mechanical design review. If adequate clearance exists, the height difference presents no functional concern.