MAX706SCSA Equivalent & Substitute Parts

Part Overview

The MAX706SCSA 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 device operates as a push-pull, totem pole output supervisor with active-low reset functionality. The MAX706SCSA is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage threshold, reset timeout, output configuration, and package specifications.

Key Parameters

Parameter	Value
Voltage Threshold	2.93V
Output Type	Push-Pull, Totem Pole
Reset Logic	Active Low
Reset Timeout	140ms Minimum
Operating Temperature Range	0°C ~ 70°C (TA)
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Number of Channels	1
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX706SCSA is determined by strict electrical and mechanical parameter matching. The following criteria define valid substitutes:

Critical Parameters for Substitution:

Voltage threshold of 2.93V
Push-pull, totem pole output configuration
Active-low reset logic
Reset timeout of 140ms minimum or greater
8-SOIC package (0.154", 3.90mm Width)
Single-channel supervisor functionality
Surface mount technology

Substitute parts are grouped into three categories based on their relationship to the original part:

Direct Manufacturer Substitutes: Parts from Analog Devices Inc./Maxim Integrated with identical electrical specifications and active product status (MAX706SCSA+, MAX709SCSA+).

Cross-Manufacturer Equivalents: Parts from alternative manufacturers (STMicroelectronics, Texas Instruments, Analog Devices ADM706 series, Microchip Technology, MaxLinear) that meet all critical electrical and mechanical parameters.

Upgrade Options: Parts with extended operating temperature ranges (-40°C ~ 85°C) or improved reset timeout specifications (160ms minimum for ADM706 series) that provide enhanced performance while maintaining backward compatibility.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Output Type	Reset Timeout	Operating Temperature	Package	Product Status	RoHS Status
MAX706SCSA	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms Min	0°C ~ 70°C	8-SOIC	Obsolete	RoHS non-compliant
MAX706SCSA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms Min	0°C ~ 70°C	8-SOIC	Active	ROHS3 Compliant
MAX709SCSA+	Analog Devices Inc./Maxim Integrated	2.93V	Push-Pull, Totem Pole	140ms Min	0°C ~ 70°C	8-SOIC	Active	ROHS3 Compliant
STM706SM6F	STMicroelectronics	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
TPS3705-33D	Texas Instruments	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM706SARZ	Analog Devices Inc.	2.93V	Push-Pull, Totem Pole	160ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
ADM706SARZ-REEL	Analog Devices Inc.	2.93V	Push-Pull, Totem Pole	160ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MIC706SMY	Microchip Technology	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
MIC706SMY-TR	Microchip Technology	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	ROHS3 Compliant
SP706SEN-L/TR	MaxLinear, Inc.	2.93V	Push-Pull, Totem Pole	140ms Min	-40°C ~ 85°C	8-SOIC	Active	RoHS Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): MAX706SCSA+ is the primary direct substitute, offering identical electrical specifications with active product status and ROHS3 compliance. This part maintains the original 0°C ~ 70°C operating temperature range and 140ms reset timeout.

For New Designs with Extended Temperature Range: STM706SM6F, TPS3705-33D, ADM706SARZ, ADM706SARZ-REEL, MIC706SMY, MIC706SMY-TR, and SP706SEN-L/TR all provide extended operating temperature ranges (-40°C ~ 85°C), suitable for industrial and automotive applications. All are ROHS3 compliant and carry active product status.

For Enhanced Reset Timeout Performance: ADM706SARZ and ADM706SARZ-REEL offer 160ms minimum reset timeout compared to the original 140ms specification, providing additional margin in power-on reset sequencing. These parts also feature extended temperature range and ROHS3 compliance.

For Packaging Considerations: ADM706SARZ-REEL and MIC706SMY-TR are supplied in tape and reel format, suitable for high-volume automated assembly. MAX706SCSA+ and MIC706SMY are available in tube packaging for lower-volume applications.

All substitute parts maintain the 8-SOIC package footprint, single-channel configuration, 2.93V voltage threshold, active-low reset logic, and push-pull totem pole output required for functional compatibility with the MAX706SCSA.

Frequently Asked Questions (FAQ)

Q: Can MAX706SCSA+ be used as a direct replacement for MAX706SCSA? A: Yes. MAX706SCSA+ maintains identical electrical specifications including 2.93V threshold, 140ms reset timeout, push-pull totem pole output, and 8-SOIC package. The primary difference is active product status and ROHS3 compliance versus the obsolete, non-compliant original part.

Q: What is the difference between MAX706SCSA+ and MAX709SCSA+? A: Both parts share identical electrical specifications (2.93V threshold, 140ms reset timeout, push-pull output, 8-SOIC package, 0°C ~ 70°C operating range). The difference lies in the base product series designation (MAX706 versus MAX709), though functional parameters remain equivalent.

Q: Are the ADM706SARZ parts suitable replacements? A: Yes, with one specification difference. ADM706SARZ and ADM706SARZ-REEL maintain the 2.93V threshold and push-pull output but feature a 160ms minimum reset timeout (versus 140ms original) and extended operating temperature range (-40°C ~ 85°C). This represents an upgrade path for designs requiring wider temperature operation.

Q: What is the difference between MIC706SMY and MIC706SMY-TR? A: Both parts are electrically identical with 2.93V threshold, 140ms reset timeout, and 8-SOIC package. MIC706SMY is supplied in tube packaging, while MIC706SMY-TR is supplied in tape and reel format for automated assembly.

Q: Can I use parts with extended temperature ranges (-40°C ~ 85°C) in place of the original 0°C ~ 70°C part? A: Yes. Extended temperature range parts (STM706SM6F, TPS3705-33D, ADM706 series, MIC706 series, SP706SEN-L/TR) are backward compatible with the original operating range. They provide additional thermal margin for industrial and automotive environments.

Q: Are all substitute parts ROHS3 compliant? A: All listed substitutes except SP706SEN-L/TR are ROHS3 compliant. SP706SEN-L/TR carries RoHS compliance. The original MAX706SCSA is RoHS non-compliant.

Q: What packaging options are available? A: Tube packaging is available for MAX706SCSA+, MIC706SMY, and TPS3705-33D. Tape and reel format is available for ADM706SARZ-REEL, MIC706SMY-TR, and SP706SEN-L/TR. Cut tape and Digi-Reel options are available for STM706SM6F.

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