SP813LEN-L Equivalent & Substitute Parts

Part Overview

The SP813LEN-L is a single-channel power management supervisor IC manufactured by MaxLinear, Inc., designed for power-on reset and simple reset applications. This device operates as an active-high reset supervisor with a 4.65V threshold and 140ms minimum reset timeout. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Substiute Parts

SP813LEN-L

MaxLinear, Inc.In Stock: 1209SP813LEN-L Datasheet

Current PartRFQ

STM813LM6F

STMicroelectronicsIn Stock: 12745STM813LM6F Datasheet

DirectRFQ

MAX813LCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3108MAX813LCSA+ Datasheet

MFR RecommendedRFQ

MAX813LCSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1166MAX813LCSA+T Datasheet

MFR RecommendedRFQ

MAX813LESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 5406MAX813LESA+ Datasheet

MFR RecommendedRFQ

MAX813LESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 17813MAX813LESA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SP813LEN-L is determined by the following critical parameters:

• Package Compatibility: All substitute parts must use 8-SOIC (0.154", 3.90mm Width) surface-mount packaging to ensure PCB-level compatibility without layout modifications.
• Functional Type: All substitutes must be single-channel power-on reset supervisors with active-high reset output.
• Voltage Threshold: The 4.65V threshold is the primary electrical specification for substitution eligibility.
• Reset Timeout: 140ms minimum reset timeout must be maintained.
• Monitoring Channels: Single voltage monitoring channel required.

The substitute parts identified are grouped into two categories based on output configuration and temperature range:

1. STM813LM6F (STMicroelectronics): Push-pull totem-pole output with -40°C ~ 85°C operating range and 4.63V threshold.
2. MAX813 Series (Analog Devices Inc./Maxim Integrated): Push-pull totem-pole output variants with either 0°C ~ 70°C or -40°C ~ 85°C operating ranges, all with 4.65V threshold. Available in multiple packaging options (Tube and Cut Tape & Digi-Reel).

Parameter Comparison

Engineering Selection Recommendations

For Extended Temperature Range Applications (-40°C ~ 85°C):

Select from MAX813LESA+, MAX813LESA+T, or STM813LM6F. These parts maintain the full operating temperature range of the original SP813LEN-L. MAX813LESA+ and MAX813LESA+T are manufacturer-recommended alternatives with ROHS3 compliance and REACH unaffected status. STM813LM6F provides an alternative from STMicroelectronics with equivalent temperature performance and ROHS3 compliance.

For Commercial Temperature Range Applications (0°C ~ 70°C):

MAX813LCSA+ and MAX813LCSA+T are suitable for systems operating within the narrower commercial temperature range. Both are ROHS3 compliant and REACH unaffected.

Packaging Considerations:

• Tube Packaging: MAX813LCSA+ and MAX813LESA+ are supplied in tube format.
• Cut Tape & Digi-Reel: MAX813LCSA+T, MAX813LESA+T, and STM813LM6F are supplied in cut tape and Digi-Reel format for automated assembly.

All substitute parts are currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete SP813LEN-L.

Frequently Asked Questions (FAQ)

Q: Can the SP813LEN-L be directly replaced with any of these substitute parts?

A: Yes, all listed substitute parts are direct replacements at the PCB level. They share identical 8-SOIC packaging, single-channel monitoring, active-high reset output, 140ms reset timeout, and equivalent voltage thresholds (4.63V–4.65V). No circuit modifications are required.

Q: What is the difference between the MAX813LCSA+ and MAX813LESA+ variants?

A: The primary difference is operating temperature range. MAX813LCSA+ operates from 0°C ~ 70°C (commercial range), while MAX813LESA+ operates from -40°C ~ 85°C (industrial range). Both have identical voltage threshold (4.65V) and reset timeout specifications. Select based on your application's temperature requirements.

Q: What does the "+T" suffix indicate in part numbers like MAX813LCSA+T?

A: The "+T" suffix indicates Cut Tape & Digi-Reel packaging format, suitable for automated pick-and-place assembly. Parts without this suffix (e.g., MAX813LCSA+) are supplied in tube packaging for manual handling or lower-volume applications.

Q: How does the STM813LM6F voltage threshold of 4.63V compare to the original 4.65V?

A: The 4.63V threshold is within acceptable tolerance for supervisor IC substitution. This 0.02V difference is negligible for power-on reset applications and does not affect functional compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts listed (STM813LM6F, MAX813LCSA+, MAX813LCSA+T, MAX813LESA+, MAX813LESA+T) are ROHS3 compliant. The original SP813LEN-L compliance status was not specified in the provided data.

Q: Which substitute part offers the best long-term availability?

A: MAX813LESA+T has the highest current inventory (17,800 pcs) and is actively produced by Analog Devices Inc./Maxim Integrated, a major semiconductor manufacturer. This ensures sustained availability for future production runs and design revisions.