MAX703ESA Equivalent & Substitute Parts

Part Overview

The MAX703ESA is a single-channel supervisor integrated circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for battery backup circuit applications. This device provides push-pull, totem pole output with active-low reset functionality and a 140ms minimum reset timeout. The MAX703ESA is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain identical electrical characteristics and mechanical compatibility to ensure seamless integration into existing applications.

Substiute Parts

MAX703ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1343MAX703ESA Datasheet

Current PartRFQ

MAX703ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2318MAX703ESA+ Datasheet

DirectRFQ

MAX690AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1710MAX690AESA+ Datasheet

Parametric EquivalentRFQ

MAX802LESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2031MAX802LESA+ Datasheet

Parametric EquivalentRFQ

STM703M6F

STMicroelectronicsIn Stock: 748STM703M6F Datasheet

MFR RecommendedRFQ

ADM690AARNZ

Analog Devices Inc.In Stock: 1492ADM690AARNZ Datasheet

Parametric EquivalentRFQ

ADM802LARNZ

Analog Devices Inc.In Stock: 50194ADM802LARNZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX703ESA are qualified based on strict parameter equivalence across the following critical criteria:

Electrical Parameters (Must Match):

• Single voltage monitoring channel
• 4.65V threshold voltage
• Push-pull, totem pole output configuration
• Active-low reset logic
• 140ms minimum reset timeout
• -40°C to 85°C operating temperature range

Mechanical Parameters (Must Match):

• 8-SOIC package (0.154", 3.90mm width)
• Surface mount configuration
• MSL 1 (Unlimited) moisture sensitivity

Regulatory & Compliance Parameters:

• RoHS3 compliance status (preferred for active products)
• REACH unaffected classification
• EAR99 export control classification

Substitute parts are categorized as direct manufacturer equivalents (same base product number with different packaging), parametric equivalents (different base product number but identical electrical and mechanical specifications), and manufacturer-recommended alternatives (cross-manufacturer solutions meeting all parameter requirements).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MAX703ESA+

The MAX703ESA+ is the direct successor to the MAX703ESA, maintaining identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. This part represents the lowest-risk substitution path for applications currently using the obsolete MAX703ESA.

Secondary Recommendations (Parametric Equivalents):

MAX690AESA+, MAX802LESA+, ADM690AARNZ, and ADM802LARNZ are parametrically equivalent alternatives from Analog Devices Inc. All maintain the required 4.65V threshold, push-pull totem pole output, active-low reset logic, and 140ms reset timeout within the 8-SOIC package. These parts carry active product status and ROHS3 compliance certification.

Cross-Manufacturer Alternative:

STM703M6F from STMicroelectronics provides functional equivalence across all critical electrical and mechanical parameters. This option is suitable for applications where supply chain diversification or alternative sourcing is required.

Packaging Considerations:

MAX703ESA+ is available in tube packaging. MAX690AESA+ and MAX802LESA+ are supplied in tube packaging. ADM690AARNZ and ADM802LARNZ are supplied in tube packaging. STM703M6F is supplied in tape & reel format. Selection should account for procurement and assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX703ESA+ be used as a direct replacement for MAX703ESA?

A: Yes. MAX703ESA+ is electrically and mechanically identical to MAX703ESA, with the addition of ROHS3 compliance and active product status. Pin configuration, voltage threshold, output type, reset logic, and package dimensions are unchanged.

Q: What is the difference between MAX703ESA and MAX690AESA+?

A: Both parts share identical electrical specifications (4.65V threshold, push-pull totem pole output, active-low reset, 140ms timeout) and mechanical compatibility (8-SOIC package). The primary difference is the base product number designation. MAX690AESA+ is an active product with ROHS3 compliance.

Q: Are ADM690AARNZ and ADM802LARNZ suitable for new designs?

A: Yes. Both parts meet all electrical and mechanical requirements for the MAX703ESA application. ADM690AARNZ and ADM802LARNZ carry active product status and ROHS3 compliance, making them suitable for new production designs.

Q: Can STM703M6F replace MAX703ESA in existing applications?

A: Yes. STM703M6F from STMicroelectronics maintains all critical electrical parameters (4.65V threshold, push-pull totem pole output, active-low reset, 140ms timeout) and mechanical compatibility (8-SOIC package). The primary difference is the tape & reel packaging format rather than tube.

Q: What inventory levels are available for substitute parts?

A: ADM802LARNZ offers the highest inventory availability at 50,100 pieces. MAX703ESA+ provides 2,255 pieces, MAX802LESA+ provides 2,000 pieces, MAX690AESA+ provides 1,700 pieces, ADM690AARNZ provides 1,435 pieces, and STM703M6F provides 679 pieces.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (MAX703ESA+, MAX690AESA+, MAX802LESA+, STM703M6F, ADM690AARNZ, ADM802LARNZ) carry ROHS3 compliance certification. The original MAX703ESA is RoHS non-compliant due to its obsolete status.