REF102CPG4 Equivalent & Substitute Parts

Part Overview

The REF102CPG4 is a series voltage reference IC manufactured by Texas Instruments, designed to provide a fixed 10V output with ±0.025% tolerance. This component is classified as a Power Management (PMIC) device and is packaged in an 8-PDIP through-hole configuration. The REF102CPG4 is currently listed as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and new design implementations where through-hole or surface-mount alternatives are required.

Substiute Parts

REF102CPG4

Texas InstrumentsIn Stock: 7101REF102CPG4 Datasheet

Current PartRFQ

REF102CU

Texas InstrumentsIn Stock: 1386REF102CU 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 of the REF102CPG4 is determined by the following critical parameters: fixed 10V output voltage, 10 mA output current capability, series reference type, and through-hole or surface-mount package compatibility. The REF102CPG4 operates across an input voltage range of 11.4V to 36V with a supply current of 1.4mA and maintains performance across -25°C to 85°C.

Substitute parts must satisfy the following core requirements:

• Fixed 10V output voltage
• Minimum 10 mA output current capability
• Series reference type
• Compatible package footprint (8-DIP through-hole or 8-SOIC surface-mount)
• Input voltage range compatibility with 11.4V minimum
• Operating temperature range that encompasses or exceeds the application requirements

The REF102CU from Texas Instruments provides direct functional equivalence with identical electrical specifications but in an 8-SOIC surface-mount package. The AD587KNZ and AD587JNZ from Analog Devices Inc. provide through-hole 8-DIP alternatives with relaxed tolerance specifications but maintain the core 10V fixed output and 10 mA current capability.

Parameter Comparison

Engineering Selection Recommendations

REF102CU (Texas Instruments): This part is the direct electrical equivalent of the REF102CPG4, maintaining identical tolerance (±0.025%), temperature coefficient (2.5ppm/°C), and noise specifications. The primary difference is the package format: 8-SOIC surface-mount versus 8-DIP through-hole. Selection of REF102CU is appropriate for new designs or board revisions that accommodate surface-mount technology. The part is currently active and ROHS3 compliant.

AD587KNZ (Analog Devices Inc.): This part maintains the 8-DIP through-hole package and 10V fixed output with 10 mA capability. The tolerance specification is relaxed to ±0.05% compared to the REF102CPG4's ±0.025%, and the temperature coefficient is 10ppm/°C versus 2.5ppm/°C. The input voltage range begins at 14.6V (versus 11.4V for the REF102CPG4), and supply current is 4mA. Operating temperature range is 0°C to 70°C. This part is suitable for applications where the relaxed tolerance and temperature coefficient are acceptable and the minimum input voltage of 14.6V is available. The part is currently active and ROHS3 compliant.

AD587JNZ (Analog Devices Inc.): This part also maintains the 8-DIP through-hole package and 10V fixed output with 10 mA capability. The tolerance is further relaxed to ±0.1%, and the temperature coefficient is 20ppm/°C. Input voltage range is 14.6V to 36V, and supply current is 4mA. Operating temperature range is 0°C to 70°C. This part is suitable for cost-sensitive applications where tolerance and temperature coefficient specifications can be relaxed further. The part is currently active and ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can REF102CU be used as a direct replacement for REF102CPG4 in existing through-hole designs?

A: REF102CU is electrically equivalent but uses an 8-SOIC surface-mount package instead of the 8-DIP through-hole package. Direct PCB substitution is not possible without board redesign. However, the electrical performance is identical, making it suitable for new designs or board revisions.

Q: What are the key differences between REF102CPG4 and the AD587 series substitutes?

A: The primary differences are tolerance and temperature coefficient. REF102CPG4 specifies ±0.025% tolerance and 2.5ppm/°C temperature coefficient. AD587KNZ offers ±0.05% tolerance and 10ppm/°C, while AD587JNZ offers ±0.1% tolerance and 20ppm/°C. Additionally, AD587 series parts require a minimum input voltage of 14.6V versus 11.4V for REF102CPG4, and have a maximum operating temperature of 70°C versus 85°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, REF102CU, AD587KNZ, and AD587JNZ are all ROHS3 compliant, matching the compliance status of the REF102CPG4.

Q: Which substitute part should be selected for a through-hole design requiring the tightest tolerance?

A: AD587KNZ provides the best tolerance specification among through-hole alternatives at ±0.05%, though this is still relaxed compared to REF102CPG4's ±0.025%. If the tightest tolerance is critical, REF102CU offers identical ±0.025% tolerance but requires surface-mount implementation.

Q: What is the impact of the different input voltage ranges on substitution?

A: REF102CPG4 and REF102CU operate with a minimum input voltage of 11.4V, while AD587KNZ and AD587JNZ require a minimum of 14.6V. If the application supplies input voltage between 11.4V and 14.6V, only REF102CPG4 or REF102CU are suitable. For applications with input voltage of 14.6V or higher, all parts are compatible.

Q: Can AD587JNZ be used in applications requiring the operating temperature range of -25°C to 85°C?

A: No. AD587JNZ operates only from 0°C to 70°C, which does not cover the full -25°C to 85°C range of REF102CPG4. If the full temperature range is required, REF102CU is the appropriate substitute. AD587KNZ also operates only to 70°C maximum.