RT9728ALGE Equivalent & Substitute Parts

Part Overview

The RT9728ALGE is an active power switch integrated circuit designed for USB power distribution and load switching applications. Manufactured by Richtek USA Inc., this component functions as a P-Channel high-side switch with integrated protection features including current limiting, over-temperature shutdown, and under-voltage lockout (UVLO). The device is classified as Active product status with full RoHS3 compliance. Substitute parts are identified to address packaging availability, supply chain flexibility, and inventory requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

RT9728ALGE

Richtek USA Inc.In Stock: 3827RT9728ALGE Datasheet

Current PartRFQ

RT9728AHGE

Richtek USA Inc.In Stock: 2083RT9728AHGE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT9728ALGE is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Output current rating (1.3A maximum), load voltage range (2.5V ~ 5.5V), on-resistance (120mOhm typical), and protection features (current limiting, over-temperature, UVLO)
• Functional Configuration: P-Channel high-side switch topology with 1:1 input-to-output ratio, non-inverting interface, and status flag output
• Package Compatibility: SOT-23-6 surface mount package with identical pinout and mechanical dimensions
• Compliance & Certification: RoHS3 compliance, MSL 3 rating, and REACH unaffected status

The RT9728AHGE qualifies as a parametric equivalent based on identical electrical performance and package specifications. The only distinction is packaging format: RT9728ALGE is supplied in Tape & Reel (TR) format, while RT9728AHGE is supplied in Cut Tape (CT) format. Both parts share the same base product number (RT9728) and are manufactured by Richtek USA Inc.

Parameter Comparison

Engineering Selection Recommendations

Both RT9728ALGE and RT9728AHGE are Active status products with identical electrical performance and mechanical compatibility. Selection between these parts is determined by packaging and supply chain requirements:

RT9728ALGE (Tape & Reel) is suitable for high-volume automated assembly operations where continuous reel feeding is required. This format optimizes pick-and-place machine compatibility and reduces handling time in production environments.

RT9728AHGE (Cut Tape) is appropriate for lower-volume applications, prototyping, or situations where partial reel quantities are needed. Cut tape format provides flexibility for mixed component orders and reduces waste in small-batch manufacturing.

Both parts maintain full RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance across all markets. The MSL 3 rating (168 hours) applies to both variants and must be observed during storage and handling to maintain component reliability.

Frequently Asked Questions (FAQ)

Q: Can RT9728AHGE be used as a direct replacement for RT9728ALGE in production?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape versus Tape & Reel). Direct substitution is valid from a functional and compliance perspective. Verify that your assembly equipment can accommodate the packaging format of the substitute part.

Q: Are there any electrical performance differences between RT9728ALGE and RT9728AHGE?

A: No. Both parts share identical electrical specifications including maximum output current (1.3A), load voltage range (2.5V ~ 5.5V), on-resistance (120mOhm typical), and protection features (current limiting, over-temperature, UVLO).

Q: What is the significance of the packaging format difference?

A: Tape & Reel (TR) format is optimized for automated high-speed assembly lines with continuous reel feeding. Cut Tape (CT) format provides individual component access and is used for lower-volume production, prototyping, or manual assembly. The electrical and mechanical performance is identical.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both RT9728ALGE and RT9728AHGE carry MSL 3 rating with 168-hour floor life. Identical storage and handling precautions apply to both variants.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RT9728ALGE and RT9728AHGE are ROHS3 compliant and REACH unaffected, meeting all applicable environmental and regulatory requirements.

Q: Can I mix RT9728ALGE and RT9728AHGE in the same production batch?

A: Yes, from an electrical and functional perspective. However, verify that your assembly process can handle both packaging formats without operational conflicts or increased handling complexity.