SCRH104-560 Equivalent & Substitute Parts

Part Overview

The SCRH104-560 is a 56 µH shielded inductor manufactured by Signal Transformer, rated for 1.4 A continuous current with a maximum DC resistance of 230mOhm. This component is designed for surface mount applications in nonstandard packaging. The part is currently obsolete, making identification of suitable substitute components essential for ongoing production support and design continuity.

Substiute Parts

SCRH104-560
Signal TransformerIn Stock: 722SCRH104-560 Datasheet
SCRH104-560
Current Part
SRR1050A-560Y
Bourns Inc.In Stock: 2188SRR1050A-560Y Datasheet
SRR1050A-560Y
MFR Recommended

Key Parameters

Parameter Value
Inductance 56 µH
Inductance Tolerance ±20%
Current Rating 1.4 A
Current - Saturation (Isat) 1 A
DC Resistance (DCR) 230mOhm Max
Shielding Shielded
Operating Temperature Range -40°C ~ 125°C
Mounting Type Surface Mount
Inductance Test Frequency 100 kHz
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SCRH104-560 is determined by the following critical parameters:

  • Inductance Value: 56 µH (primary electrical requirement)
  • Current Rating: Minimum 1.4 A continuous current capability
  • DC Resistance: Maximum 230mOhm to maintain circuit performance
  • Shielding: Shielded construction required
  • Operating Temperature: -40°C ~ 125°C compatibility
  • Mounting Type: Surface mount configuration
  • Environmental Compliance: ROHS3 compliance and MSL rating

The SRR1050A-560Y from Bourns Inc. meets these substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Parameter SCRH104-560 (Signal Transformer) SRR1050A-560Y (Bourns Inc.) Compatibility
Inductance 56 µH 56 µH Match
Inductance Tolerance ±20% ±30% Acceptable (wider tolerance)
Current Rating (Amps) 1.4 A 1.9 A Exceeds requirement
Current - Saturation (Isat) 1 A 1.9 A Exceeds requirement
DC Resistance (DCR) 230mOhm Max 160mOhm Max Improved (lower resistance)
Shielding Shielded Shielded Match
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C Match
Mounting Type Surface Mount Surface Mount Match
Inductance Test Frequency 100 kHz 100 kHz Match
RoHS Status ROHS3 Compliant ROHS3 Compliant Match
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited) Match

Engineering Selection Recommendations

The SRR1050A-560Y is a direct functional substitute for the obsolete SCRH104-560. The Bourns component maintains identical inductance value and operating temperature range while providing superior electrical performance through lower DC resistance (160mOhm vs. 230mOhm) and higher current ratings (1.9 A vs. 1.4 A). Both components are ROHS3 compliant with MSL rating of 1, ensuring equivalent environmental and regulatory compliance. The SRR1050A-560Y carries active product status with AEC-Q200 qualification, supporting long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the SRR1050A-560Y directly replace the SCRH104-560 in existing designs?

A: Yes. Both components share identical inductance values (56 µH), operating temperature ranges (-40°C ~ 125°C), shielding configuration, and surface mount packaging. The SRR1050A-560Y provides equivalent or superior electrical performance across all critical parameters.

Q: What is the impact of the wider inductance tolerance on the SRR1050A-560Y (±30% vs. ±20%)?

A: The SRR1050A-560Y tolerance of ±30% is wider than the original SCRH104-560 specification of ±20%. Circuit designs must accommodate this tolerance range. If the original design required the tighter ±20% tolerance, tolerance stack analysis should be performed.

Q: Why is the DC resistance lower on the SRR1050A-560Y?

A: The SRR1050A-560Y features lower DC resistance (160mOhm Max vs. 230mOhm Max), resulting in reduced power dissipation and improved thermal performance. This represents an enhancement over the original component.

Q: Are there packaging differences between these components?

A: Both components use nonstandard surface mount packaging with similar physical dimensions. The SRR1050A-560Y is supplied in Tape & Reel (TR) packaging format, while the SCRH104-560 packaging format is not specified. Physical dimensions are comparable (10.10mm x 9.20mm vs. 10.20mm x 10.00mm), with negligible height differences (5.00mm vs. 5.10mm).

Q: What certifications support the SRR1050A-560Y for critical applications?

A: The SRR1050A-560Y carries AEC-Q200 qualification, indicating automotive-grade reliability testing. Both components maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements across industrial and automotive applications.

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