CHY103D Battery USB Charger Interface IC Equivalent & Substitute Parts

Part Overview

The CHY103D is a Battery USB Charger Interface IC manufactured by Power Integrations, designed for USB charging applications with integrated battery management functionality. This Surface Mount device operates across an extended temperature range of -40°C to 105°C and provides comprehensive fault protection including over-temperature, over-voltage, and short-circuit detection.

The CHY103D has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this Power Management (PMIC) component.

Substiute Parts

CHY103D

Power IntegrationsIn Stock: 846CHY103D Datasheet

Current PartRFQ

CHY103DG

Power IntegrationsIn Stock: 1072CHY103DG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CHY103D is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: Power Integrations
• Function: USB Charger Interface
• Interface: USB
• Fault Protection: Over Temperature, Over Voltage, Short Circuit
• Operating Temperature Range: -40°C ~ 105°C (TA)
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Supplier Device Package: 8-SO
• Series: ChiPhy™
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The CHY103DG meets all mandatory matching parameters and qualifies as a parametric equivalent substitute for the CHY103D.

Parameter Comparison

Engineering Selection Recommendations

The CHY103DG is a direct parametric equivalent to the CHY103D. Both components share identical electrical specifications, thermal operating range, fault protection mechanisms, and physical packaging. The primary distinction is product status: the CHY103D is discontinued while the CHY103DG maintains active status with confirmed inventory availability (1003 Pcs New Original In Stock).

Both parts maintain RoHS Compliance and REACH Unaffected status, ensuring regulatory alignment for applications requiring environmental compliance certification. The CHY103DG is suitable for direct substitution in designs currently utilizing the CHY103D, with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Can the CHY103DG be used as a direct replacement for the CHY103D?

A: Yes. The CHY103DG is a parametric equivalent with identical electrical characteristics, operating temperature range (-40°C to 105°C), fault protection features (over-temperature, over-voltage, short-circuit), and 8-SOIC package specifications. No circuit modifications are required.

Q: What is the difference between the CHY103D and CHY103DG part numbers?

A: The suffix designation differs (D versus DG). Both parts are from the Power Integrations ChiPhy™ series with the same base product number (CHY103). The CHY103DG represents the active production variant.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the CHY103D and CHY103DG maintain identical RoHS Compliance status, REACH Unaffected classification, and Moisture Sensitivity Level (MSL) rating of 1 (Unlimited). Regulatory compliance is equivalent.

Q: What is the package compatibility between CHY103D and CHY103DG?

A: Both components use the 8-SOIC (0.154", 3.90mm Width) package with 8-SO supplier device package designation. PCB footprints and mounting requirements are identical.

Q: Why is the CHY103D discontinued?

A: The CHY103D has been discontinued at DiGi Electronics. The CHY103DG serves as the active production equivalent and is recommended for new designs and ongoing supply requirements.

Q: Is inventory availability a concern when switching from CHY103D to CHY103DG?

A: The CHY103DG has confirmed inventory of 1003 Pcs New Original In Stock, ensuring supply chain continuity. The CHY103D is no longer actively stocked.