DS1803Z-050/T&R Equivalent & Substitute Parts

Part Overview

The DS1803Z-050/T&R is a digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated, classified as a data acquisition component. This 50kΩ dual-circuit device features 256 taps, I2C interface control, and 16-SOIC surface mount packaging. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity.

Substiute Parts

DS1803Z-050/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 835DS1803Z-050/T&R Datasheet

Current PartRFQ

DS1803Z-050+

Analog Devices Inc./Maxim IntegratedIn Stock: 25379DS1803Z-050+ Datasheet

DirectRFQ

DS1803Z-050+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 5726DS1803Z-050+T&R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS1803Z-050/T&R is determined by strict equivalence across the following parameters: resistance value (50kΩ), circuit count (2), tap resolution (256), interface protocol (I2C), taper characteristic (linear), supply voltage range (2.7V ~ 5.5V), operating temperature range (-40°C ~ 85°C), package type (16-SOIC), and mounting method (surface mount).

The identified substitutes—DS1803Z-050+ and DS1803Z-050+T&R—match all electrical and mechanical parameters of the main part. Differentiation between substitutes is based solely on packaging format: tube packaging versus tape & reel configuration. Both substitute parts are manufactured by the same supplier and maintain identical functional specifications.

Parameter Comparison

Engineering Selection Recommendations

Both DS1803Z-050+ and DS1803Z-050+T&R are direct functional equivalents to the obsolete DS1803Z-050/T&R. Selection between the two active substitutes depends on procurement and assembly requirements:

DS1803Z-050+ is supplied in tube packaging and is suitable for manual assembly, prototyping, or low-volume production environments.

DS1803Z-050+T&R is supplied in tape & reel format and is optimized for automated pick-and-place assembly in high-volume manufacturing operations.

Both substitutes carry ROHS3 compliance certification, providing regulatory advantage over the non-compliant main part. Electrical and mechanical compatibility is complete across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can DS1803Z-050+ and DS1803Z-050+T&R be used interchangeably with DS1803Z-050/T&R?

A: Yes. Both substitutes are electrically and mechanically identical to the main part. Differentiation is limited to packaging format (tube versus tape & reel) and product status (active versus obsolete).

Q: What is the primary reason to transition from DS1803Z-050/T&R to an active substitute?

A: The main part is classified as obsolete. Active substitutes ensure supply chain continuity, availability, and access to current manufacturing batches with updated compliance certifications.

Q: Are there compliance differences between the main part and substitutes?

A: Yes. The main part is RoHS non-compliant, while both substitutes meet ROHS3 compliance standards. This distinction is relevant for applications subject to RoHS regulatory requirements.

Q: Does packaging format affect electrical performance?

A: No. Tube and tape & reel packaging formats contain identical components. Packaging selection is determined by assembly methodology and production volume requirements.

Q: Are all three parts manufactured by the same company?

A: Yes. DS1803Z-050/T&R, DS1803Z-050+, and DS1803Z-050+T&R are all manufactured by Analog Devices Inc./Maxim Integrated.