SP707EN-L Equivalent & Substitute Parts

Part Overview

The SP707EN-L is a single-channel power management supervisor IC manufactured by MaxLinear, Inc., designed for power-on reset and simple reset applications. This device monitors a single voltage threshold at 4.65V and provides active high/active low reset output functionality in an 8-SOIC surface mount package. The SP707EN-L is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	SP707EN-L
Manufacturer	MaxLinear, Inc.
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4.65V
Reset	Active High/Active Low
Reset Timeout	140ms Minimum
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the SP707EN-L are qualified based on the following critical parameters that determine functional equivalence:

Voltage Threshold: 4.65V (primary monitoring function)
Reset Type: Active High/Active Low capability
Reset Timeout: 140ms minimum or compatible timing
Package: 8-SOIC form factor with identical pinout
Operating Temperature Range: -40°C ~ 85°C (full industrial range)
Single Channel Monitoring: One voltage input requirement

Substitute parts are grouped into two categories based on operating temperature range and product status:

Category A - Full Temperature Range (-40°C ~ 85°C): DS1707ESA+, DS1707ESA+T&R, MAX707ESA+, MAX707ESA+T, STM707M6F. These parts maintain the complete industrial temperature specification of the original SP707EN-L.

Category B - Commercial Temperature Range (0°C ~ 70°C): MAX707CSA+, MAX707CSA+T. These parts operate within a narrower temperature window and are suitable only for applications not requiring full industrial temperature coverage.

All substitute parts are manufactured by Analog Devices Inc./Maxim Integrated or STMicroelectronics and maintain active product status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Part Number	Manufacturer	Voltage Threshold	Reset Timeout	Operating Temperature	Output Type	Package	Product Status
SP707EN-L	MaxLinear, Inc.	4.65V	140ms Min	-40°C ~ 85°C	Active High/Low	8-SOIC	Obsolete
DS1707ESA+	Analog Devices Inc./Maxim	4.65V	130ms Min	-40°C ~ 85°C	Push-Pull	8-SOIC	Active
DS1707ESA+T&R	Analog Devices Inc./Maxim	4.65V	130ms Min	-40°C ~ 85°C	Push-Pull	8-SOIC	Active
MAX707CSA+	Analog Devices Inc./Maxim	4.65V	140ms Min	0°C ~ 70°C	Push-Pull	8-SOIC	Active
MAX707CSA+T	Analog Devices Inc./Maxim	4.65V	140ms Min	0°C ~ 70°C	Push-Pull	8-SOIC	Active
MAX707ESA+	Analog Devices Inc./Maxim	4.65V	140ms Min	-40°C ~ 85°C	Push-Pull	8-SOIC	Active
MAX707ESA+T	Analog Devices Inc./Maxim	4.65V	140ms Min	-40°C ~ 85°C	Push-Pull	8-SOIC	Active
STM707M6F	STMicroelectronics	4.63V	140ms Min	-40°C ~ 85°C	Push-Pull, Totem Pole	8-SOIC	Active

Engineering Selection Recommendations

Primary Recommendation for Industrial Applications: MAX707ESA+ or MAX707ESA+T are the preferred substitutes for the obsolete SP707EN-L. These parts maintain identical voltage threshold (4.65V), reset timeout (140ms minimum), and full industrial operating temperature range (-40°C ~ 85°C). Both parts carry ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. The MAX707ESA+T variant in Cut Tape & Digi-Reel packaging offers the highest inventory availability (17,900 units) for production volume requirements.

Alternative for Full Temperature Range: DS1707ESA+ or DS1707ESA+T&R from Analog Devices Inc./Maxim Integrated provide equivalent functionality with a slightly faster reset timeout (130ms minimum versus 140ms). Both maintain the -40°C ~ 85°C operating range and are classified as active products with ROHS3 compliance. The DS1707ESA+T&R in Tape & Reel packaging provides 3,218 units in stock.

For Commercial Temperature Applications Only: MAX707CSA+ and MAX707CSA+T are suitable substitutes only when the application environment is restricted to 0°C ~ 70°C operating temperature. These parts maintain the 4.65V threshold and 140ms reset timeout but do not support the full industrial temperature range of the original SP707EN-L.

Alternative Manufacturer Option: STM707M6F from STMicroelectronics provides full industrial temperature range (-40°C ~ 85°C) with a voltage threshold of 4.63V (within acceptable tolerance of 4.65V) and 140ms reset timeout. This part offers the highest inventory availability (11,233 units) and represents a cross-manufacturer alternative with ROHS3 compliance.

All recommended substitutes are active products with established supply chains, ensuring long-term availability and design continuity beyond the obsolete SP707EN-L.

Frequently Asked Questions (FAQ)

Q: Can the MAX707CSA+ directly replace the SP707EN-L in all applications?

A: The MAX707CSA+ is functionally equivalent for voltage threshold (4.65V), reset timeout (140ms), and package (8-SOIC). However, it operates only within 0°C ~ 70°C, whereas the SP707EN-L supports -40°C ~ 85°C. Use MAX707CSA+ only if your application environment is restricted to commercial temperature ranges. For full industrial temperature coverage, select MAX707ESA+ or DS1707ESA+.

Q: What is the difference between DS1707ESA+ and MAX707ESA+ in terms of substitution?

A: Both parts maintain the 4.65V voltage threshold and -40°C ~ 85°C operating range. The primary difference is reset timeout: DS1707ESA+ specifies 130ms minimum, while MAX707ESA+ specifies 140ms minimum, matching the original SP707EN-L exactly. Both are active products with ROHS3 compliance. Selection depends on timing requirements and packaging preference (Tube versus Cut Tape & Digi-Reel).

Q: Is the STM707M6F a suitable substitute despite the 4.63V threshold versus 4.65V?

A: The STM707M6F threshold of 4.63V represents a 0.02V deviation from the SP707EN-L specification of 4.65V. This difference is within typical component tolerance ranges for supervisor ICs and does not affect functional equivalence for standard power-on reset applications. The STM707M6F maintains full industrial temperature range (-40°C ~ 85°C), 140ms reset timeout, and 8-SOIC packaging, making it a valid cross-manufacturer alternative.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in three packaging formats: Tube (standard packaging for lower volumes), Tape & Reel (TR) for automated assembly, and Cut Tape & Digi-Reel (CT) for mixed-volume production. All maintain the 8-SOIC form factor with identical pinout. Selection depends on production volume and assembly process requirements.

Q: Are all substitute parts RoHS and REACH compliant?

A: All active substitute parts (DS1707ESA+, DS1707ESA+T&R, MAX707CSA+, MAX707CSA+T, MAX707ESA+, MAX707ESA+T, STM707M6F) carry ROHS3 compliance and REACH unaffected status. The obsolete SP707EN-L does not have documented compliance certifications. Substitution with active parts ensures compliance with current regulatory requirements.

Q: Can I use the MAX707ESA+T in place of MAX707ESA+ for the same application?

A: Yes. Both parts are electrically identical with the same voltage threshold (4.65V), reset timeout (140ms), operating temperature (-40°C ~ 85°C), and package (8-SOIC). The difference is packaging format: MAX707ESA+ is supplied in Tube, while MAX707ESA+T is supplied in Cut Tape & Digi-Reel. Selection depends on assembly process and volume requirements. MAX707ESA+T offers significantly higher inventory (17,900 units versus 1,600 units).

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