CAT809ZSDI-T3 Equivalent & Substitute Parts

Part Overview

The CAT809ZSDI-T3 is a single-channel power management supervisor IC manufactured by onsemi, designed for simple reset and power-on reset applications. This device features push-pull, totem pole output configuration with active low reset control and a 140ms minimum reset timeout. The component is housed in an SC-70 (SOT-323) surface mount package.

The CAT809ZSDI-T3 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this supervisor topology.

Substiute Parts

CAT809ZSDI-T3

onsemiIn Stock: 742CAT809ZSDI-T3 Datasheet

Current PartRFQ

TCM809ZVLB713

Microchip TechnologyIn Stock: 2442TCM809ZVLB713 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAT809ZSDI-T3 is determined by strict alignment of the following electrical and mechanical parameters:

• Single-channel voltage monitoring with 2.32V threshold
• Push-pull, totem pole output configuration
• Active low reset logic
• 140ms minimum reset timeout
• SC-70 (SOT-323) surface mount package
• MSL 1 (Unlimited) moisture sensitivity classification

The TCM809ZVLB713 manufactured by Microchip Technology meets all these core substitution criteria. This part maintains identical functional specifications, package geometry, and electrical characteristics required for direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The TCM809ZVLB713 is the qualified substitute for the obsolete CAT809ZSDI-T3. Selection is based on the following factors:

Product Status: The TCM809ZVLB713 maintains active product status with Microchip Technology, ensuring ongoing availability and supply chain support compared to the obsolete onsemi part.

Electrical Equivalence: Both parts share identical voltage threshold (2.32V), output configuration (push-pull, totem pole), reset logic (active low), and reset timeout (140ms minimum), enabling direct functional replacement.

Package Compatibility: Both components utilize the SC-70 (SOT-323) surface mount package with identical pin configuration and mechanical footprint, allowing direct PCB layout compatibility without redesign.

Compliance & Certifications: The TCM809ZVLB713 carries ROHS3 compliance certification and maintains REACH Unaffected status, meeting modern regulatory requirements. Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Temperature Range Consideration: The TCM809ZVLB713 supports an extended operating temperature range (-40°C ~ 125°C) compared to the CAT809ZSDI-T3 (-40°C ~ 85°C), providing additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the TCM809ZVLB713 be used as a direct replacement for the CAT809ZSDI-T3?

A: Yes. The TCM809ZVLB713 meets all electrical and mechanical substitution criteria, including identical voltage threshold, output configuration, reset logic, reset timeout, and SC-70 package specification. No circuit modifications are required.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution is determined by: single-channel voltage monitoring with 2.32V threshold, push-pull totem pole output, active low reset logic, 140ms minimum reset timeout, and SC-70 (SOT-323) surface mount package. All these parameters are identical between the two parts.

Q: Does the extended temperature range of the TCM809ZVLB713 affect compatibility?

A: No. The extended operating temperature range (-40°C ~ 125°C) of the TCM809ZVLB713 compared to the CAT809ZSDI-T3 (-40°C ~ 85°C) is a superset specification. Applications operating within the original temperature range remain fully compatible.

Q: Are there any packaging or moisture sensitivity differences?

A: No. Both parts share identical MSL 1 (Unlimited) moisture sensitivity classification and SC-70-3 supplier device package specification. Handling and storage requirements are equivalent.

Q: What is the supply status difference between these parts?

A: The CAT809ZSDI-T3 is classified as obsolete, while the TCM809ZVLB713 maintains active product status with Microchip Technology. This ensures continued availability and technical support for the substitute part.

Q: Are regulatory and compliance certifications equivalent?

A: Both parts share identical REACH Unaffected status and EAR99 ECCN classification. The TCM809ZVLB713 additionally carries ROHS3 compliance certification, meeting current regulatory standards.