SP708CN-L Equivalent & Substitute Parts

Part Overview

The SP708CN-L is a single-channel power supply supervisor IC manufactured by MaxLinear, Inc., designed for power-on reset and simple reset applications in 8-SOIC surface mount packaging. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements. Supervisor ICs monitor supply voltage and generate reset signals to ensure proper system initialization and protection against brownout conditions.

Key Parameters

Parameter	SP708CN-L
Manufacturer	MaxLinear, Inc.
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4.4V
Reset	Active High/Active Low
Reset Timeout	140ms Minimum
Operating Temperature	0°C ~ 70°C (TA)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SP708CN-L is determined by strict alignment of the following electrical and mechanical parameters:

Voltage threshold: 4.4V
Single channel monitoring
Active High/Active Low reset capability
8-SOIC package form factor (0.154", 3.90mm Width)
Surface mount technology
Reset timeout characteristics within acceptable range (130ms–160ms minimum)
RoHS compliance status

Substitute parts must maintain identical voltage monitoring threshold, package geometry, and reset signal polarity options. Output stage configuration (Push-Pull or Complementary) and operating temperature range may vary based on application requirements. All listed substitutes meet the core electrical and mechanical compatibility criteria for direct replacement in the SP708CN-L application space.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Reset Timeout (Min)	Operating Temperature	Output Type	Package	Product Status	RoHS Status
SP708CN-L	MaxLinear, Inc.	4.4V	140ms	0°C ~ 70°C	—	8-SOIC	Discontinued	RoHS Compliant
ADM708ARZ	Analog Devices Inc.	4.4V	160ms	-40°C ~ 85°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
ADM708ARZ-REEL	Analog Devices Inc.	4.4V	160ms	-40°C ~ 85°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
DS1708ESA+	Analog Devices Inc./Maxim Integrated	4.4V	130ms	-40°C ~ 85°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
DS1708ESA+T&R	Analog Devices Inc./Maxim Integrated	4.4V	130ms	-40°C ~ 85°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
MAX708CSA+	Analog Devices Inc./Maxim Integrated	4.4V	140ms	0°C ~ 70°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
MAX708CSA+T	Analog Devices Inc./Maxim Integrated	4.4V	140ms	0°C ~ 70°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
MAX708ESA+	Analog Devices Inc./Maxim Integrated	4.4V	140ms	-40°C ~ 85°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
MAX708ESA+T	Analog Devices Inc./Maxim Integrated	4.4V	140ms	-40°C ~ 85°C	Push-Pull	8-SOIC	Active	ROHS3 Compliant
MIC708MY	Microchip Technology	4.4V	140ms	-40°C ~ 85°C	Complementary	8-SOIC	Active	ROHS3 Compliant
MIC708MY-TR	Microchip Technology	4.4V	140ms	-40°C ~ 85°C	Complementary	8-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are currently in active production status, ensuring long-term availability and supply chain stability. The SP708CN-L is discontinued, making migration to an active equivalent necessary for new designs and ongoing production support.

For applications requiring identical operating temperature range (0°C ~ 70°C) and reset timeout (140ms minimum), select MAX708CSA+, MAX708CSA+T, MAX708ESA+, or MAX708ESA+T. These parts maintain the original thermal specifications while providing ROHS3 compliance and active product status.

For applications capable of operating across the extended temperature range (-40°C ~ 85°C), ADM708ARZ, ADM708ARZ-REEL, DS1708ESA+, DS1708ESA+T&R, MAX708ESA+, MAX708ESA+T, MIC708MY, and MIC708MY-TR offer broader environmental performance and enhanced reliability margins.

All substitute parts maintain the 4.4V voltage threshold and 8-SOIC package geometry required for direct PCB compatibility. Output stage configuration differences (Push-Pull versus Complementary) do not affect substitution eligibility when reset signal polarity requirements are met.

Frequently Asked Questions (FAQ)

Q: Can MAX708ESA+T directly replace SP708CN-L on existing PCBs?

A: Yes. Both parts share identical voltage threshold (4.4V), reset polarity capability (Active High/Active Low), and 8-SOIC package dimensions (0.154", 3.90mm Width). Pin-to-pin compatibility is maintained. MAX708ESA+T offers extended operating temperature range (-40°C ~ 85°C) and active product status.

Q: What is the difference between packaging options like ADM708ARZ and ADM708ARZ-REEL?

A: ADM708ARZ is supplied in Tube packaging, while ADM708ARZ-REEL uses Cut Tape and Digi-Reel packaging. Both are electrically identical with the same voltage threshold, reset timeout, and operating specifications. Selection depends on assembly process requirements and volume handling.

Q: Are DS1708ESA+ and DS1708ESA+T&R interchangeable?

A: Yes. DS1708ESA+ is supplied in Tube packaging, while DS1708ESA+T&R uses Tape & Reel packaging. Electrical specifications are identical, including 4.4V threshold, 130ms reset timeout, and -40°C ~ 85°C operating range. Packaging choice depends on production workflow.

Q: How do output stage differences (Push-Pull vs. Complementary) affect substitution?

A: Both output configurations support Active High/Active Low reset signal generation required by the SP708CN-L application. Push-Pull outputs (ADM708ARZ, MAX708 series, DS1708 series) and Complementary outputs (MIC708MY series) are functionally equivalent for reset signal delivery when polarity requirements are met.

Q: Which substitute offers the closest thermal match to SP708CN-L?

A: MAX708CSA+ and MAX708CSA+T maintain the original 0°C ~ 70°C operating temperature range and 140ms reset timeout. These parts are direct thermal equivalents while providing active product status and ROHS3 compliance.

Q: Is RoHS compliance maintained across all substitutes?

A: Yes. SP708CN-L is RoHS Compliant. All listed substitutes are ROHS3 Compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and assembly.

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