BQ2003S-NG4 Equivalent & Substitute Parts

Part Overview

The BQ2003S-NG4 is a multi-chemistry battery charger IC manufactured by Texas Instruments, housed in a 16-SOIC surface mount package. This component functions as a battery control and charging management solution with programmable timer and voltage features. The BQ2003S-NG4 is currently discontinued at DiGi Electronics, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Active equivalent parts remain available from the same manufacturer with identical electrical and mechanical specifications.

Substiute Parts

BQ2003S-NG4

Texas InstrumentsIn Stock: 1116BQ2003S-NG4 Datasheet

Current PartRFQ

BQ2003S

Texas InstrumentsIn Stock: 2192BQ2003S Datasheet

Parametric EquivalentRFQ

BQ2003S-N

Texas InstrumentsIn Stock: 1319BQ2003S-N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BQ2003S-NG4 is determined by strict equivalence across the following parameters: identical package type (16-SOIC), matching battery chemistry support (Multi-Chemistry), equivalent charging current mode (Constant), identical programmable features (Timer, Voltage), matching maximum supply voltage (5.5V), identical operating temperature range (0°C ~ 70°C), and compliance with RoHS3 and REACH requirements.

The BQ2003S-NG4 shares these critical parameters with two active substitute parts: BQ2003S and BQ2003S-N. Both substitutes are manufactured by Texas Instruments and maintain full electrical and mechanical compatibility. The primary distinction between these parts is product status and packaging format, with the original part discontinued while substitutes remain in active production.

Parameter Comparison

Engineering Selection Recommendations

Both BQ2003S and BQ2003S-N are direct functional equivalents to the discontinued BQ2003S-NG4. Selection between these substitutes should be based on availability and packaging requirements. BQ2003S-N is designated as the manufacturer-recommended substitute and maintains active product status with 1279 units in stock. BQ2003S is also active with higher inventory availability at 2092 units. Both parts carry identical RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component. The choice between these two substitutes does not impact electrical performance or thermal characteristics, as all parameters remain equivalent across the product line.

Frequently Asked Questions (FAQ)

Q: Can BQ2003S or BQ2003S-N be used as direct replacements for BQ2003S-NG4 in existing designs?

A: Yes. Both BQ2003S and BQ2003S-N are direct functional equivalents with identical electrical specifications, package dimensions, and operating characteristics. No circuit modifications are required.

Q: What is the difference between BQ2003S and BQ2003S-N?

A: Both parts are electrically and mechanically identical. The primary difference is packaging format (both supplied in Tube) and inventory availability. BQ2003S-N is the manufacturer-recommended substitute designation.

Q: Are there any thermal or operating condition differences between these parts?

A: No. All three parts operate within the same temperature range (0°C ~ 70°C) and share identical maximum supply voltage (5.5V) and moisture sensitivity specifications.

Q: Do these substitutes maintain the same compliance certifications?

A: Yes. BQ2003S and BQ2003S-N are both ROHS3 compliant and REACH unaffected, matching the original BQ2003S-NG4 specifications.

Q: Why is BQ2003S-NG4 discontinued while BQ2003S and BQ2003S-N remain active?

A: Product discontinuation at distribution channels does not indicate technical obsolescence. The base product line BQ2003 remains in active production with equivalent variants available. BQ2003S and BQ2003S-N represent the current active distribution channels for this functionality.