DS1708RESA/T&R Equivalent & Substitute Parts

Part Overview

The DS1708RESA/T&R is a single-channel power supply supervisor IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power-on reset and simple reset applications. This component operates as a push-pull output supervisor with a 2.63V threshold voltage and 130ms minimum reset timeout. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements. Substitute parts maintain identical electrical and mechanical specifications while offering active product status and improved compliance certifications.

Substiute Parts

DS1708RESA/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 858DS1708RESA/T&R Datasheet

Current PartRFQ

DS1708RESA+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 1086DS1708RESA+T&R Datasheet

DirectRFQ

ADM708RARZ

Analog Devices Inc.In Stock: 7860ADM708RARZ Datasheet

MFR RecommendedRFQ

ADM708RARZ-REEL

Analog Devices Inc.In Stock: 14377ADM708RARZ-REEL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS1708RESA/T&R are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Single-channel voltage monitoring architecture
• 2.63V threshold voltage
• Push-pull output configuration with active high/active low reset logic
• 8-SOIC surface mount package (0.154", 3.90mm width)
• Operating temperature range of -40°C to 85°C
• Moisture sensitivity level 1 (unlimited)

The substitute parts DS1708RESA+T&R, ADM708RARZ, and ADM708RARZ-REEL meet these core electrical specifications. Variations exist in reset timeout (160ms minimum for ADM708 variants versus 130ms for DS1708), product status (active versus obsolete), packaging format (tape & reel, tube, or cut tape & digi-reel), and RoHS compliance status. These differences do not affect functional substitution when electrical parameters align.

Parameter Comparison

Engineering Selection Recommendations

DS1708RESA+T&R serves as the direct equivalent substitute, maintaining identical electrical specifications and reset timeout characteristics while offering active product status and ROHS3 compliance. This part is recommended for applications requiring minimal design changes and maximum compatibility with existing DS1708 implementations.

ADM708RARZ and ADM708RARZ-REEL are manufacturer-recommended alternatives from Analog Devices Inc. Both parts maintain all critical electrical parameters and package specifications. The reset timeout specification increases to 160ms minimum, which is functionally compatible with applications designed for the DS1708 series. Both ADM708 variants carry active product status and ROHS3 compliance certification. Selection between ADM708RARZ (tube packaging) and ADM708RARZ-REEL (cut tape & digi-reel packaging) depends on procurement and assembly requirements.

All substitute parts comply with REACH regulations and maintain MSL 1 rating. The transition from RoHS non-compliant to ROHS3 compliant status represents an improvement in regulatory alignment for new production and design implementations.

Frequently Asked Questions (FAQ)

Q: Can DS1708RESA+T&R be used as a direct replacement for DS1708RESA/T&R?

A: Yes. DS1708RESA+T&R maintains identical electrical specifications, threshold voltage (2.63V), reset timeout (130ms minimum), output configuration, and package dimensions. The primary difference is product status (active versus obsolete) and RoHS compliance improvement (ROHS3 compliant). Packaging format remains tape & reel for both parts.

Q: What is the functional difference between DS1708RESA+T&R and ADM708RARZ?

A: Both parts share identical voltage threshold (2.63V), output configuration (push-pull), reset logic (active high/active low), operating temperature range (-40°C to 85°C), and 8-SOIC package specifications. The ADM708RARZ specifies a 160ms minimum reset timeout compared to 130ms for the DS1708 series. This difference does not affect substitution compatibility for applications designed around the DS1708 specifications. Packaging differs: DS1708RESA+T&R uses tape & reel format, while ADM708RARZ uses tube packaging.

Q: Are ADM708RARZ and ADM708RARZ-REEL electrically identical?

A: Yes. Both parts are electrically identical with matching threshold voltage (2.63V), reset timeout (160ms minimum), output configuration, and operating specifications. The difference is packaging format: ADM708RARZ uses tube packaging, while ADM708RARZ-REEL uses cut tape & digi-reel packaging. Selection depends on assembly line requirements and procurement preferences.

Q: Does the 160ms reset timeout of ADM708 variants affect compatibility with DS1708 designs?

A: The ADM708 series specifies 160ms minimum reset timeout versus 130ms for DS1708. This represents a longer timeout period and does not create functional incompatibility. Applications designed for DS1708 will operate with ADM708 variants; the extended timeout provides additional margin in reset sequencing.

Q: What are the RoHS compliance implications of substitution?

A: The original DS1708RESA/T&R is RoHS non-compliant. All substitute parts (DS1708RESA+T&R, ADM708RARZ, ADM708RARZ-REEL) are ROHS3 compliant. This improvement aligns with current regulatory requirements and is beneficial for new production implementations and long-term supply chain sustainability.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use identical 8-SOIC package dimensions (0.154", 3.90mm width) and surface mount configuration. Pin-to-pin compatibility is maintained across all listed parts. No PCB layout modifications are required for substitution.