CAT8801STB-GT3 Equivalent & Substitute Parts

Part Overview

The CAT8801STB-GT3 is a single-channel supervisor IC with push-pull, totem pole output configuration, manufactured by onsemi in SOT-23-3 surface mount packaging. This device functions as a simple reset/power-on reset controller, monitoring a single voltage threshold at 2.925V with an active-low reset output and 140ms minimum reset timeout. The part is classified as obsolete, making identification of equivalent substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

CAT8801STB-GT3

onsemiIn Stock: 906CAT8801STB-GT3 Datasheet

Current PartRFQ

ISL88001IH29Z-T

Renesas Electronics CorporationIn Stock: 2824ISL88001IH29Z-T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CAT8801STB-GT3 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Single voltage monitoring channel
• Voltage threshold: 2.925V
• Output type: Push-Pull, Totem Pole configuration
• Reset logic: Active Low
• Reset timeout: 140ms Minimum
• Operating temperature range: -40°C ~ 85°C (TA)
• Package: SOT-23-3 (TO-236-3, SC-59)
• Surface mount mounting type

The ISL88001IH29Z-T from Renesas Electronics Corporation meets all electrical and mechanical specifications required for direct substitution. Both parts share identical functional parameters, threshold voltage, output configuration, and package form factor, enabling pin-compatible replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The ISL88001IH29Z-T is the qualified substitute for the obsolete CAT8801STB-GT3. Selection is based on the following factors:

Product Status: The CAT8801STB-GT3 is obsolete, while the ISL88001IH29Z-T maintains active product status, ensuring long-term availability and manufacturing support.

Regulatory Compliance: Both parts carry identical REACH and ECCN classifications (REACH Unaffected, EAR99), confirming equivalent regulatory standing. The ISL88001IH29Z-T achieves ROHS3 compliance, meeting current environmental standards.

Electrical Equivalence: All functional parameters—threshold voltage, output configuration, reset logic, timeout duration, and operating temperature range—are identical between the two parts, enabling direct functional replacement.

Package Compatibility: Both devices use SOT-23-3 surface mount packaging, allowing pin-compatible PCB placement without layout modification.

Availability: The ISL88001IH29Z-T is available in higher inventory quantities (2736 pcs) compared to the obsolete CAT8801STB-GT3, supporting production continuity.

Frequently Asked Questions (FAQ)

Q: Can the ISL88001IH29Z-T replace the CAT8801STB-GT3 in existing designs without modification?

A: Yes. Both parts are pin-compatible with identical electrical specifications. No circuit modifications are required for direct substitution in SOT-23-3 footprints.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching: single voltage monitoring channel, 2.925V threshold voltage, push-pull totem pole output, active-low reset logic, 140ms minimum reset timeout, and -40°C to 85°C operating temperature range.

Q: Are there differences in packaging between these parts?

A: Both parts use identical SOT-23-3 (TO-236-3, SC-59) surface mount packaging. The ISL88001IH29Z-T is supplied in Tape & Reel format, while the CAT8801STB-GT3 packaging format is not specified.

Q: What is the significance of the product status difference?

A: The CAT8801STB-GT3 is obsolete, meaning onsemi no longer manufactures or supports this part. The ISL88001IH29Z-T is active, ensuring continued availability, technical support, and manufacturing consistency.

Q: Do both parts meet current environmental and regulatory requirements?

A: Yes. Both parts are REACH Unaffected and classified as EAR99. The ISL88001IH29Z-T additionally meets ROHS3 compliance standards.

Q: What is the difference in Moisture Sensitivity Level (MSL) between the parts?

A: The CAT8801STB-GT3 has MSL 1 (Unlimited), while the ISL88001IH29Z-T has MSL 3 (168 Hours). This indicates the ISL88001IH29Z-T requires controlled moisture exposure during storage and handling, with a 168-hour floor life after bag opening.