MIC810JU-TR Equivalent & Substitute Parts

Part Overview

The MIC810JU-TR is a single-channel power management supervisor IC manufactured by Microchip Technology, designed for power-on reset and simple reset applications. It operates as a push-pull, totem pole output device in a compact SOT-23-3 surface mount package. The MIC810JU-TR is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	MIC810JU-TR
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4V
Output Configuration	Push-Pull, Totem Pole
Reset Logic	Active High
Reset Timeout	140ms Minimum
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MIC810JU-TR is determined by strict equivalence across the following critical parameters:

Single voltage monitoring channel
4V threshold voltage
Push-pull, totem pole output configuration
Active high reset logic
140ms minimum reset timeout
SOT-23-3 package compatibility
Surface mount technology
Operating temperature range capability
Moisture sensitivity level

Substitute parts are grouped into two categories: MFR Recommended (manufacturer-endorsed alternatives) and Parametric Equivalents (parts meeting all electrical and mechanical specifications). Product status and compliance certifications are provided for selection guidance but do not alter electrical equivalence.

Parameter Comparison

Parameter	MIC810JU-TR	ADM810JARTZ-REEL7	MAX6800UR40D3+T	APX810-40SAG-7	APX810-40SRG-7
Manufacturer	Microchip Technology	Analog Devices Inc.	Analog Devices Inc./Maxim Integrated	Diodes Incorporated	Diodes Incorporated
Voltage - Threshold	4V	4V	4V	4V	4V
Output Configuration	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole	Push-Pull, Totem Pole
Reset Logic	Active High	Active High	Active High	Active High	Active High
Reset Timeout	140ms Minimum	140ms Minimum	100ms Minimum	140ms Minimum	140ms Minimum
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Active	Obsolete	Not For New Designs	Not For New Designs

Engineering Selection Recommendations

ADM810JARTZ-REEL7 is the primary substitute for new designs and production. It is manufactured by Analog Devices Inc., maintains active product status, and achieves ROHS3 compliance. The operating temperature range extends to 125°C, providing enhanced thermal margin over the original MIC810JU-TR specification of 85°C. All critical electrical parameters remain equivalent.

MAX6800UR40D3+T provides electrical equivalence but carries obsolete product status. This part is suitable only for legacy system maintenance where component availability is confirmed through direct supplier channels.

APX810-40SAG-7 and APX810-40SRG-7 are parametric equivalents manufactured by Diodes Incorporated. Both parts are marked "Not For New Designs" and maintain the 140ms reset timeout specification. APX810-40SRG-7 uses a SOT23R package variant. These parts are appropriate for replacement in existing designs where supply chain continuity is established.

Frequently Asked Questions (FAQ)

Q: Can ADM810JARTZ-REEL7 directly replace MIC810JU-TR in existing designs?

A: Yes. ADM810JARTZ-REEL7 meets all electrical and mechanical specifications of MIC810JU-TR. The 4V threshold voltage, push-pull totem pole output, active high reset logic, and 140ms minimum reset timeout are identical. The SOT-23-3 package is pin-compatible. The extended operating temperature range (-40°C to 125°C versus -40°C to 85°C) provides additional design margin.

Q: What is the difference between APX810-40SAG-7 and APX810-40SRG-7?

A: Both parts are electrically equivalent with identical threshold voltage, output configuration, reset logic, and reset timeout specifications. The primary difference is the package variant: APX810-40SAG-7 uses SOT-23-3, while APX810-40SRG-7 uses SOT23R. Both are surface mount packages compatible with standard PCB layouts for this device class.

Q: Why does MAX6800UR40D3+T show a 100ms reset timeout instead of 140ms?

A: MAX6800UR40D3+T specifies a 100ms minimum reset timeout, which differs from the MIC810JU-TR specification of 140ms minimum. This parameter variation may affect timing-critical applications. Verify reset timeout requirements in your circuit design before selecting this substitute.

Q: Are all substitute parts RoHS compliant?

A: ADM810JARTZ-REEL7, MAX6800UR40D3+T, APX810-40SAG-7, and APX810-40SRG-7 are all ROHS3 compliant. The original MIC810JU-TR is RoHS non-compliant. If RoHS compliance is a design requirement, any of the listed substitutes satisfy this criterion.

Q: What does "Not For New Designs" mean for APX810 parts?

A: "Not For New Designs" indicates that the manufacturer recommends against using these parts in new product development. However, they remain electrically and mechanically equivalent to MIC810JU-TR and are suitable for replacement in existing designs or legacy system support where supply continuity is confirmed.

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