RT9470DWSC Equivalent & Substitute Parts

Part Overview

The RT9470DWSC is an active, production-status lithium-ion/polymer battery charger IC manufactured by Richtek USA Inc. This single-cell charger integrates programmable charging current and timer functions with comprehensive fault protection including over-current, over-temperature, and over-under voltage monitoring. The device operates across an industrial temperature range of -40°C to 85°C and supports I2C interface communication for system integration. Finding equivalent substitute parts is necessary to address supply chain flexibility, packaging preferences, and inventory availability while maintaining identical electrical and mechanical performance.

Substiute Parts

RT9470DWSC

Richtek USA Inc.In Stock: 20433RT9470DWSC Datasheet

Current PartRFQ

RT9470WSC

Richtek USA Inc.In Stock: 3248RT9470WSC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The RT9470DWSC qualifies for direct substitution with the RT9470WSC based on identical electrical and mechanical parameters. Both parts share the same base product number (RT9470), battery chemistry classification (Lithium Ion/Polymer), single-cell configuration, maximum charging current (3A), battery pack voltage (4.7V), maximum supply voltage (13.5V), I2C interface, operating temperature range (-40°C to 85°C), package type (30-UFBGA, WLCSP), and physical dimensions (2.1x2.5mm). Both devices incorporate programmable current and timer functions with identical fault protection mechanisms (over-current, over-temperature, over-under voltage). Compliance certifications including ROHS3, REACH Unaffected status, and MSL rating are equivalent across both parts. The primary distinction between these parts is packaging format: RT9470DWSC is supplied in Tape & Reel (TR) format, while RT9470WSC is supplied in Cut Tape (CT) & Digi-Reel® format.

Parameter Comparison

Engineering Selection Recommendations

Both RT9470DWSC and RT9470WSC are active production parts from Richtek USA Inc. with identical electrical specifications and compliance certifications. Selection between these parts should be based on packaging and supply chain requirements rather than functional performance. The RT9470DWSC in Tape & Reel format is suitable for high-volume automated assembly operations requiring continuous reel feeding. The RT9470WSC in Cut Tape & Digi-Reel® format provides flexibility for lower-volume production runs or mixed-component assembly scenarios. Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility across global markets. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either part. Current inventory levels should be evaluated against production schedules: RT9470DWSC has 20,400 units in stock, while RT9470WSC has 3,200 units available.

Frequently Asked Questions (FAQ)

Q: Can RT9470WSC be used as a direct replacement for RT9470DWSC in production?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Tape & Reel versus Cut Tape & Digi-Reel®). Substitution is valid for any application where the RT9470DWSC is specified, provided the assembly process can accommodate the alternative packaging format.

Q: Are there any functional differences between RT9470DWSC and RT9470WSC?

A: No. Both parts share identical charging current specifications (3A maximum), battery pack voltage (4.7V), supply voltage rating (13.5V), I2C interface, operating temperature range (-40°C to 85°C), and fault protection mechanisms (over-current, over-temperature, over-under voltage).

Q: What is the significance of the packaging designation (TR versus CT & Digi-Reel®)?

A: Tape & Reel (TR) packaging is optimized for continuous automated pick-and-place assembly with standard reel feeders. Cut Tape (CT) & Digi-Reel® packaging provides individual component access and is suitable for lower-volume production, prototyping, or mixed-component assembly lines. Both formats contain the same die and are mounted in identical 30-WLCSP packages.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both RT9470DWSC and RT9470WSC are ROHS3 compliant, REACH Unaffected, and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. Moisture Sensitivity Level is 1 (Unlimited) for both parts.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection should be based on manufacturing process requirements and supply chain strategy. For high-volume production with automated assembly, RT9470DWSC (Tape & Reel) is standard. For flexible or lower-volume production, RT9470WSC (Cut Tape & Digi-Reel®) may be preferred.

Q: Are there any temperature or environmental performance differences?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C (TA) and carry the same MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints.