SCRH127B-560 Equivalent & Substitute Parts

Part Overview

The SCRH127B-560 is a 56 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 2.35 A continuous current with a maximum DC resistance of 110mOhm. This component is designed for applications requiring fixed inductance in compact nonstandard packages. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide equivalent electrical performance when the primary part is unavailable or when design requirements permit alternative specifications within the allowed parameter ranges.

Substiute Parts

SCRH127B-560

Signal TransformerIn Stock: 1229SCRH127B-560 Datasheet

Current PartRFQ

CDRH127/LDNP-560MC

Sumida America Components Inc.In Stock: 3474CDRH127/LDNP-560MC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRH127B-560 is permissible when the replacement part meets the following criteria:

Critical Parameters (Must Match or Exceed):

• Inductance value: 56 µH at ±20% tolerance
• Shielding: Shielded construction required
• Mounting type: Surface Mount
• Package classification: Nonstandard
• Current rating: Minimum 2.35 A continuous
• DC resistance: Maximum 110mOhm

Acceptable Variation Parameters:

• Operating temperature range may differ provided it encompasses the application's required operating window
• Inductance test frequency may vary (100 kHz vs. 1 kHz) as both measure the same nominal inductance value
• Physical dimensions may vary within nonstandard package constraints provided height remains at or below 0.315" (8.00mm)

The CDRH127/LDNP-560MC from Sumida America Components Inc. qualifies as a direct substitute based on matching inductance, tolerance, shielding, mounting type, and exceeding the current rating requirement (2.9 A vs. 2.35 A required) while maintaining DC resistance within specification (90mOhm vs. 110mOhm maximum).

Parameter Comparison

Engineering Selection Recommendations

The CDRH127/LDNP-560MC qualifies as a direct electrical and mechanical substitute for the SCRH127B-560. Both parts maintain Active product status with full RoHS3 compliance and unlimited moisture sensitivity ratings, ensuring regulatory and environmental compatibility.

The substitute part provides performance advantages: higher current rating (2.9 A vs. 2.35 A) and lower DC resistance (90mOhm vs. 110mOhm maximum), resulting in reduced power dissipation and improved thermal performance in the application circuit.

The operating temperature range of the substitute extends to 100°C maximum versus 125°C for the primary part. Applications requiring operation above 100°C must retain the SCRH127B-560. For applications operating within -40°C to 100°C, the substitute presents no thermal limitation.

Physical dimensions differ slightly (12.00mm x 12.00mm vs. 12.50mm x 12.50mm), with the substitute occupying less board space while maintaining identical seated height. PCB layout verification is required to confirm the smaller footprint is compatible with existing design constraints.

Frequently Asked Questions (FAQ)

Q: Can the CDRH127/LDNP-560MC replace the SCRH127B-560 in all applications?

A: The substitute is electrically and mechanically compatible for applications operating within -40°C to 100°C. Applications requiring operation above 100°C must use the primary part. PCB layout must accommodate the smaller 12.00mm x 12.00mm footprint.

Q: What is the significance of the different inductance test frequencies (100 kHz vs. 1 kHz)?

A: Both frequencies measure inductance at the nominal 56 µH value. The test frequency difference does not affect substitution eligibility, as both parts deliver the specified inductance within ±20% tolerance across their respective measurement conditions.

Q: Does the lower DC resistance of the substitute affect circuit performance?

A: Lower DC resistance (90mOhm vs. 110mOhm) reduces resistive losses and heat generation. This represents an improvement for most applications. Circuit analysis should confirm that the reduced resistance does not alter intended circuit behavior or damping characteristics.

Q: Are both parts available in the same packaging format?

A: Both parts are supplied in Tape & Reel (TR) packaging for automated assembly. Physical dimensions differ slightly, requiring verification that pick-and-place equipment and PCB pads accommodate the substitute's 12.00mm x 12.00mm footprint.

Q: What compliance certifications apply to both parts?

A: Both the SCRH127B-560 and CDRH127/LDNP-560MC are ROHS3 compliant with unlimited moisture sensitivity (MSL 1). The primary part is REACH Unaffected; the substitute is REACH Vendor Undefined. Both carry EAR99 export classification.