SP706TCU-L Equivalent & Substitute Parts

Part Overview

The SP706TCU-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 3.08V and provides active-low reset output with a 140ms minimum timeout. The SP706TCU-L is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications.

Substiute Parts

SP706TCU-L

MaxLinear, Inc.In Stock: 2773SP706TCU-L Datasheet

Current PartRFQ

DS1706TEUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 877DS1706TEUA+ Datasheet

MFR RecommendedRFQ

DS1706TEUA+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 820DS1706TEUA+T&R Datasheet

MFR RecommendedRFQ

MAX706TCUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2591MAX706TCUA+ Datasheet

MFR RecommendedRFQ

MAX706TCUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3021MAX706TCUA+T Datasheet

MFR RecommendedRFQ

MAX706TEUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 830MAX706TEUA+ Datasheet

MFR RecommendedRFQ

MAX706TEUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3860MAX706TEUA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SP706TCU-L is determined by the following critical parameters that must remain constant across all equivalent parts:

• Voltage Threshold: 3.08V (exact match required)
• Number of Voltages Monitored: 1 channel
• Reset Type: Active Low
• Reset Timeout: 140ms minimum
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Mounting Type: Surface Mount
• Operating Temperature Range: Must support minimum 0°C ~ 70°C

The substitute parts identified are functionally equivalent based on these core electrical and mechanical parameters. Differences in output configuration (Push-Pull, Totem Pole vs. standard output), operating temperature range extensions, and packaging format (Tube vs. Tape & Reel) do not affect core substitution eligibility when the primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status with Analog Devices Inc./Maxim Integrated, ensuring ongoing availability and support. The DS1706TEUA+ series and MAX706 series are functionally equivalent to the SP706TCU-L across all critical electrical parameters.

For applications requiring the original 0°C ~ 70°C operating temperature range, select MAX706TCUA+ or MAX706TCUA+T. These parts maintain identical reset timeout specifications (140ms minimum) and voltage threshold (3.08V).

For applications that can utilize extended operating temperature range (-40°C ~ 85°C), DS1706TEUA+ series or MAX706TEUA+ series provide additional thermal margin. Note that DS1706TEUA+ and DS1706TEUA+T&R specify 130ms minimum reset timeout, which is acceptable for most applications but differs from the original 140ms specification.

All substitute parts are ROHS3 compliant and maintain MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile. Packaging format selection (Tube vs. Tape & Reel) depends on assembly process requirements and does not affect electrical performance.

Frequently Asked Questions (FAQ)

Q: Can DS1706TEUA+ be used as a direct replacement for SP706TCU-L?

A: DS1706TEUA+ is electrically equivalent with matching voltage threshold (3.08V), single-channel monitoring, active-low reset, and identical package (8-TSSOP, 8-MSOP). The 130ms minimum reset timeout is 10ms shorter than the original 140ms specification. Verify that your application tolerates this timing difference before substitution.

Q: What is the difference between MAX706TCUA+ and MAX706TEUA+?

A: Both parts are functionally identical with 3.08V threshold and 140ms reset timeout. The primary difference is operating temperature range: MAX706TCUA+ operates 0°C ~ 70°C (matching the original SP706TCU-L), while MAX706TEUA+ operates -40°C ~ 85°C. Select based on your application's thermal requirements.

Q: Does packaging format (Tube vs. Tape & Reel) affect compatibility?

A: No. Tube and Tape & Reel packaging formats contain identical die and electrical specifications. Selection depends on assembly process compatibility and volume requirements. Tube packaging is suitable for lower-volume or manual assembly; Tape & Reel is standard for automated pick-and-place assembly.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 compliant. The original SP706TCU-L is RoHS compliant. All parts maintain MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute part has the highest inventory availability?

A: MAX706TCUA+T and MAX706TEUA+T offer the highest inventory levels (3004 and 3800 units respectively). DS1706TEUA+ and MAX706TEUA+ offer lower inventory (838 and 758 units respectively).

Q: Can I use a substitute part with extended temperature range in place of the original?

A: Yes. Parts rated for -40°C ~ 85°C (DS1706TEUA+ series and MAX706TEUA+ series) are backward compatible with applications requiring only 0°C ~ 70°C operation. Extended temperature range provides additional design margin without affecting performance in standard temperature applications.