CAT705ZI-GT3 Equivalent & Substitute Parts

Part Overview

The CAT705ZI-GT3 is a single-channel power supply supervisor IC manufactured by onsemi, designed for simple reset and power-on reset applications. This device monitors a single voltage threshold at 4.65V and provides push-pull, totem pole output with active-low reset functionality. The part is classified as obsolete, making equivalent substitute components necessary for new designs and ongoing production requirements.

Substiute Parts

CAT705ZI-GT3

onsemiIn Stock: 3213CAT705ZI-GT3 Datasheet

Current PartRFQ

MAX705EUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 10427MAX705EUA+T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CAT705ZI-GT3 is determined by strict equivalence across the following critical parameters:

• Single voltage monitoring channel
• 4.65V threshold voltage
• Push-pull, totem pole output configuration
• Active-low reset logic
• 140ms minimum reset timeout
• Surface mount package with 8-pin TSSOP/MSOP footprint (0.118", 3.00mm width)
• Operating temperature range of -40°C to 85°C
• MSL rating of 1 (Unlimited)

The MAX705EUA+T from Analog Devices Inc./Maxim Integrated meets all these electrical and mechanical requirements, making it a direct parametric equivalent despite differences in product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The MAX705EUA+T is the direct parametric equivalent for the CAT705ZI-GT3. Selection between these parts should be based on the following factors:

Product Status: The CAT705ZI-GT3 is obsolete, while the MAX705EUA+T is active. For new designs and long-term production, the MAX705EUA+T is the appropriate choice to ensure ongoing availability and supply chain continuity.

Compliance & Certifications: The MAX705EUA+T carries ROHS3 compliance, providing additional environmental regulatory alignment compared to the CAT705ZI-GT3. Both parts are REACH Unaffected and classified under ECCN EAR99.

Packaging Considerations: The MAX705EUA+T is supplied in Tape & Reel format, which is standard for production environments. The CAT705ZI-GT3 was supplied in bulk format. Tape & Reel packaging is suitable for automated assembly processes.

Electrical Equivalence: All critical electrical parameters are identical, including threshold voltage, output configuration, reset timing, and operating temperature range. Pin-to-pin compatibility is maintained within the 8-MSOP package footprint.

Frequently Asked Questions (FAQ)

Q: Can the MAX705EUA+T directly replace the CAT705ZI-GT3 in existing designs?

A: Yes. The MAX705EUA+T is a direct parametric equivalent with identical electrical specifications and pin-compatible 8-MSOP packaging. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The CAT705ZI-GT3 is obsolete. The MAX705EUA+T is an active product from a major manufacturer, ensuring long-term availability and supply chain reliability.

Q: Are there any differences in operating conditions?

A: No. Both parts operate across the same temperature range (-40°C to 85°C), maintain identical threshold voltage (4.65V), reset timeout (140ms minimum), and output configuration (push-pull, totem pole, active-low).

Q: Does the packaging format affect compatibility?

A: The packaging format (Tape & Reel vs. bulk) does not affect electrical or mechanical compatibility. It reflects supply chain and assembly process preferences. The physical package remains 8-MSOP with identical pin assignments.

Q: Are there compliance differences between the two parts?

A: The MAX705EUA+T includes ROHS3 compliance certification, which may be required for certain applications or markets. Both parts are REACH Unaffected and carry the same ECCN and HTSUS classifications.

Q: What is the MSL rating, and does it affect storage or handling?

A: Both parts carry MSL 1 (Unlimited), indicating unlimited shelf life without moisture sensitivity concerns. Standard surface mount handling procedures apply.