SP708SCU-L/TR Equivalent & Substitute Parts

Part Overview

The SP708SCU-L/TR is a single-channel power supply supervisor IC manufactured by MaxLinear, Inc., designed for power-on reset and simple reset applications. This device operates as a voltage monitor with a 2.93V threshold and provides active high/active low reset outputs with a 140ms minimum timeout. The part is packaged in an 8-MSOP surface mount configuration with unlimited moisture sensitivity rating.

The SP708SCU-L/TR is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

SP708SCU-L/TR

MaxLinear, Inc.In Stock: 5276SP708SCU-L/TR Datasheet

Current PartRFQ

SP708SEN-L/TR

MaxLinear, Inc.In Stock: 25387SP708SEN-L/TR Datasheet

MFR RecommendedRFQ

DS1708SEUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1109DS1708SEUA+ Datasheet

MFR RecommendedRFQ

DS1708SEUA+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 855DS1708SEUA+T&R Datasheet

MFR RecommendedRFQ

MAX708SCUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2183MAX708SCUA+ Datasheet

MFR RecommendedRFQ

MAX708SCUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 10284MAX708SCUA+T Datasheet

MFR RecommendedRFQ

STM708SDS6F

STMicroelectronicsIn Stock: 7798STM708SDS6F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SP708SCU-L/TR is determined by the following critical parameters:

• Single-channel voltage monitoring capability
• 2.93V voltage threshold
• Active high/active low reset output configuration
• Simple reset/power-on reset functionality
• 8-pin surface mount package (MSOP, SOIC, or uMAX variants)
• Minimum 140ms reset timeout
• Unlimited moisture sensitivity rating (MSL 1)

Substitute parts must maintain electrical equivalence across these parameters. Package variants (8-MSOP, 8-SOIC, 8-uMAX/uSOP, 8-TSSOP) are mechanically compatible within the same footprint class and may be used interchangeably with appropriate PCB layout considerations. Operating temperature range variations do not affect functional substitution but may impact system reliability in extended temperature applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain electrical equivalence to the SP708SCU-L/TR across the critical monitoring threshold, reset output configuration, and reset timeout parameters. Selection should be based on the following criteria:

For direct replacement with extended temperature capability: SP708SEN-L/TR, DS1708SEUA+, DS1708SEUA+T&R, and STM708SDS6F support operating temperatures from -40°C to 85°C, providing enhanced reliability in temperature-variable environments compared to the original 0°C to 70°C specification.

For matched temperature range: MAX708SCUA+ and MAX708SCUA+T maintain the original 0°C to 70°C operating temperature range, ensuring thermal behavior consistency with the obsolete SP708SCU-L/TR.

For compliance requirements: DS1708SEUA+, DS1708SEUA+T&R, MAX708SCUA+, MAX708SCUA+T, and STM708SDS6F are ROHS3 compliant, meeting modern environmental and regulatory standards.

For packaging considerations: SP708SEN-L/TR uses 8-SOIC packaging; DS1708SEUA+ and MAX708SCUA+ are supplied in tube packaging; DS1708SEUA+T&R and MAX708SCUA+T are supplied in tape and reel format; STM708SDS6F is supplied in cut tape with Digi-Reel format. Package selection depends on production volume and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SP708SEN-L/TR as a direct replacement for SP708SCU-L/TR?

A: SP708SEN-L/TR is electrically equivalent with identical voltage threshold (2.93V), reset configuration, and reset timeout (140ms). The primary difference is the package type: SP708SEN-L/TR uses 8-SOIC instead of 8-MSOP. Both packages are 8-pin surface mount variants with compatible pinouts. PCB layout modification is required to accommodate the different package footprint.

Q: What is the difference between DS1708SEUA+ and MAX708SCUA+?

A: Both parts are electrically equivalent with 2.93V threshold and active high/active low reset outputs. DS1708SEUA+ has a 130ms minimum reset timeout, while MAX708SCUA+ specifies 140ms minimum. DS1708SEUA+ operates from -40°C to 85°C; MAX708SCUA+ operates from 0°C to 70°C. For applications requiring extended temperature range, DS1708SEUA+ is preferred. For matched thermal behavior with the original part, MAX708SCUA+ is appropriate.

Q: Are all substitute parts RoHS compliant?

A: DS1708SEUA+, DS1708SEUA+T&R, MAX708SCUA+, MAX708SCUA+T, and STM708SDS6F are ROHS3 compliant. SP708SEN-L/TR RoHS status is not specified in the provided data. Verify RoHS compliance requirements with your procurement or quality assurance department before final selection.

Q: What packaging options are available for high-volume production?

A: For high-volume assembly, MAX708SCUA+T (10,200 pcs available, cut tape with Digi-Reel format) and DS1708SEUA+T&R (754 pcs available, tape and reel format) are optimized for automated pick-and-place equipment. SP708SEN-L/TR (25,300 pcs available) is available in tape and reel format for high-volume runs.

Q: Can I use STM708SDS6F in place of the original SP708SCU-L/TR?

A: STM708SDS6F is electrically equivalent with 2.93V threshold, active high/active low reset, and 140ms minimum reset timeout. It operates from -40°C to 85°C, providing extended temperature capability. The package is 8-TSSOP, which differs from the original 8-MSOP. PCB layout modification is required. STM708SDS6F is ROHS3 compliant and suitable for modern production environments.

Q: What is the significance of the reset timeout difference between 130ms and 140ms?

A: Reset timeout specifies the minimum duration the reset output remains active after the monitored voltage crosses the threshold. DS1708SEUA+ and DS1708SEUA+T&R specify 130ms minimum, while other substitutes specify 140ms minimum. Both values are functionally equivalent for standard power-on reset applications. If your design requires a specific reset pulse width, verify timing requirements against the datasheet before selection.