REF102AP Equivalent & Substitute Parts

Part Overview

The REF102AP is a series voltage reference IC manufactured by Texas Instruments, designed to provide a fixed 10V output with ±0.1% tolerance. This through-hole 8-DIP packaged component operates across an input voltage range of 11.4V to 36V and delivers 10 mA output current. The REF102AP is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. Alternative parts must maintain electrical compatibility while accommodating modern packaging preferences and availability constraints.

Substiute Parts

REF102AP

Texas InstrumentsIn Stock: 2110REF102AP Datasheet

Current PartRFQ

REF102AU

Texas InstrumentsIn Stock: 3975REF102AU Datasheet

MFR RecommendedRFQ

AD587JNZ

Analog Devices Inc.In Stock: 1412AD587JNZ Datasheet

MFR RecommendedRFQ

AD587KNZ

Analog Devices Inc.In Stock: 1396AD587KNZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the REF102AP is determined by the following critical parameters: fixed 10V output voltage, ±0.1% tolerance or better, 10 mA output current capability, and compatibility with the specified input voltage range. The REF102AP operates with a 10ppm/°C temperature coefficient across -25°C to 85°C.

Two substitution categories are identified:

Category 1: Direct Electrical Equivalent (Same Package) Parts maintaining the 8-DIP through-hole package with identical or superior electrical specifications. The AD587KNZ and AD587JNZ meet this criterion, both offering 10V fixed output in 8-DIP packaging with active product status.

Category 2: Functional Equivalent (Alternative Package) The REF102AU provides identical electrical performance to the REF102AP but in 8-SOIC surface-mount packaging. This part is the manufacturer-recommended upgrade path, offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

REF102AU (Texas Instruments): This part is the manufacturer-recommended substitute for the REF102AP. It maintains identical electrical specifications and operating temperature range while offering active product status and superior long-term availability. The transition from 8-DIP to 8-SOIC packaging requires PCB layout modification but is suitable for new designs or redesigned legacy systems. ROHS3 compliance and unlimited moisture sensitivity rating support extended storage and deployment scenarios.

AD587KNZ (Analog Devices Inc.): This part provides superior tolerance performance (±0.05% versus ±0.1%) and maintains the 8-DIP through-hole package for direct socket compatibility. The 10ppm/°C temperature coefficient matches the REF102AP specification. However, the input voltage range begins at 14.6V (versus 11.4V for REF102AP), which may restrict operation in lower-voltage supply applications. Operating temperature range is limited to 0°C to 70°C. Active product status and ROHS3 compliance are confirmed.

AD587JNZ (Analog Devices Inc.): This part maintains 8-DIP through-hole packaging and ±0.1% tolerance matching the REF102AP. The 20ppm/°C temperature coefficient represents a degradation from the REF102AP specification. Input voltage range begins at 14.6V, and operating temperature is limited to 0°C to 70°C. Active product status and ROHS3 compliance are confirmed. This part is suitable only where the relaxed temperature coefficient and narrower operating ranges are acceptable.

Frequently Asked Questions (FAQ)

Q: Can REF102AU be used as a direct replacement for REF102AP in existing through-hole designs?

A: No. The REF102AU uses 8-SOIC surface-mount packaging, while the REF102AP uses 8-DIP through-hole packaging. PCB layout and assembly process modifications are required. For through-hole socket compatibility, select AD587KNZ or AD587JNZ.

Q: What are the key electrical differences between REF102AP and AD587KNZ?

A: Both parts provide 10V fixed output with 10ppm/°C temperature coefficient. AD587KNZ offers superior tolerance (±0.05% versus ±0.1%). The input voltage range differs: REF102AP operates from 11.4V to 36V, while AD587KNZ operates from 14.6V to 36V. Operating temperature range is narrower for AD587KNZ (0°C to 70°C versus -25°C to 85°C).

Q: Is the AD587JNZ suitable for applications requiring the full -25°C to 85°C operating temperature range?

A: No. AD587JNZ is rated for 0°C to 70°C operation only. For applications requiring -25°C to 85°C operation, use REF102AU or AD587KNZ.

Q: What is the impact of the 14.6V minimum input voltage specification on AD587 parts?

A: Applications with supply voltages between 11.4V and 14.6V cannot use AD587JNZ or AD587KNZ. REF102AP or REF102AU must be used in these lower-voltage supply scenarios.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. REF102AP, REF102AU, AD587JNZ, and AD587KNZ are all ROHS3 compliant with REACH unaffected status.

Q: What is the difference in supply current consumption between REF102AP and AD587 parts?

A: REF102AP and REF102AU consume 1.4mA supply current. AD587JNZ and AD587KNZ consume 4mA supply current. This difference may impact power budget calculations in battery-powered or low-power applications.