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LM810M3X-3.08 Equivalent & Substitute Parts
Part Overview
The LM810M3X-3.08 is a single-channel power management supervisor IC manufactured by Texas Instruments, housed in a SOT-23-3 surface mount package. This device functions as a simple reset/power-on reset supervisor with push-pull totem pole output, monitoring a 3.08V voltage threshold with a 140ms minimum reset timeout. The part is classified as obsolete, making equivalent and substitute components necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | LM810M3X-3.08 |
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 3.08V |
| Output | Push-Pull, Totem Pole |
| Reset | Active High |
| Reset Timeout | 140ms Minimum |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the LM810M3X-3.08 is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Voltage threshold: 3.08V (exact match required)
- Output configuration: Push-Pull, Totem Pole
- Reset polarity: Active High
- Reset timeout: 140ms Minimum
- Package: SOT-23-3 (TO-236-3, SC-59)
- Number of monitored voltages: 1 channel
- Mounting type: Surface Mount
Secondary Compatibility Factors:
- Operating temperature range (must meet or exceed -40°C ~ 105°C minimum)
- RoHS3 compliance
- MSL rating of 1 or better
Parts are grouped into two categories based on exact voltage threshold matching:
Group 1 - Exact 3.08V Threshold Match: MAX810TEUR+T, MAX810TEUR+T10, ADM810TARTZ-REEL7, MIC810TUY-TR, STM810TWX6F. These parts provide direct functional equivalence with identical voltage monitoring specifications.
Group 2 - Alternative Voltage Thresholds: MIC810JUY-TR (4.0V), MIC810MUY-TR (4.38V), MIC810LUY-TR (4.63V), MIC810RUY-TR (2.63V), MIC810SUY-TR (2.93V). These parts share identical output topology, reset behavior, and package but monitor different voltage thresholds. Selection from this group requires circuit-level voltage threshold compatibility verification.
Parameter Comparison
| Part Number | Manufacturer | Voltage Threshold | Operating Temperature | Product Status | Output Type | Reset Timeout | Package |
|---|---|---|---|---|---|---|---|
| LM810M3X-3.08 | Texas Instruments | 3.08V | -40°C ~ 105°C | Obsolete | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MAX810TEUR+T | Analog Devices Inc./Maxim Integrated | 3.08V | -40°C ~ 105°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MAX810TEUR+T10 | Analog Devices Inc./Maxim Integrated | 3.08V | -40°C ~ 105°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| ADM810TARTZ-REEL7 | Analog Devices Inc. | 3.08V | -40°C ~ 125°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MIC810TUY-TR | Microchip Technology | 3.08V | -40°C ~ 85°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| STM810TWX6F | STMicroelectronics | 3.08V | -40°C ~ 85°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MIC810JUY-TR | Microchip Technology | 4.0V | -40°C ~ 85°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MIC810MUY-TR | Microchip Technology | 4.38V | -40°C ~ 85°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MIC810LUY-TR | Microchip Technology | 4.63V | -40°C ~ 85°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MIC810RUY-TR | Microchip Technology | 2.63V | -40°C ~ 85°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
| MIC810SUY-TR | Microchip Technology | 2.93V | -40°C ~ 85°C | Active | Push-Pull, Totem Pole | 140ms Min | SOT-23-3 |
Engineering Selection Recommendations
Direct Substitutes (Exact Voltage Threshold Match):
For applications requiring exact functional replacement of the LM810M3X-3.08, select from parts with 3.08V threshold: MAX810TEUR+T, MAX810TEUR+T10, ADM810TARTZ-REEL7, MIC810TUY-TR, or STM810TWX6F. All are active production parts with ROHS3 compliance and MSL-1 ratings.
ADM810TARTZ-REEL7 offers extended operating temperature range (-40°C ~ 125°C) compared to the original specification, providing additional thermal margin for high-temperature applications.
MAX810TEUR+T and MAX810TEUR+T10 maintain the original -40°C ~ 105°C operating range, ensuring thermal compatibility with designs validated for the LM810M3X-3.08.
MIC810TUY-TR and STM810TWX6F operate within -40°C ~ 85°C range. Selection of these parts requires verification that the application does not exceed 85°C ambient temperature.
Alternative Voltage Threshold Parts:
MIC810JUY-TR (4.0V), MIC810MUY-TR (4.38V), MIC810LUY-TR (4.63V), MIC810RUY-TR (2.63V), and MIC810SUY-TR (2.93V) are functionally equivalent in output topology, reset behavior, and package configuration but monitor different supply voltages. These parts are suitable only for applications where the circuit design accommodates the specified voltage threshold.
All substitute parts listed are active production components with ROHS3 compliance and unlimited moisture sensitivity rating (MSL-1).
Frequently Asked Questions (FAQ)
Q: Can I use MIC810TUY-TR as a direct replacement for LM810M3X-3.08?
A: Yes. MIC810TUY-TR matches all critical parameters: 3.08V threshold, push-pull totem pole output, active high reset, 140ms minimum reset timeout, and SOT-23-3 package. The operating temperature range is -40°C ~ 85°C, which is narrower than the original -40°C ~ 105°C specification. Verify that your application does not exceed 85°C ambient temperature.
Q: What is the difference between MAX810TEUR+T and MAX810TEUR+T10?
A: Both parts are functionally identical with 3.08V threshold, push-pull output, and SOT-23-3 package. The designation difference reflects packaging or tape configuration variants. Both are suitable direct replacements for the LM810M3X-3.08.
Q: Can I substitute MIC810JUY-TR (4.0V threshold) for the LM810M3X-3.08 (3.08V threshold)?
A: No, not without circuit redesign. The voltage threshold determines the supply voltage at which the reset function activates. A 4.0V threshold part will not trigger reset at 3.08V. Use only if your circuit design requires 4.0V threshold monitoring.
Q: Why does ADM810TARTZ-REEL7 have a higher operating temperature range?
A: ADM810TARTZ-REEL7 is specified for -40°C ~ 125°C operation, exceeding the original -40°C ~ 105°C range. This reflects the device's thermal capability and is suitable for applications requiring extended high-temperature operation. All other electrical and functional parameters remain identical to the LM810M3X-3.08.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL-1 (unlimited) moisture sensitivity rating, matching the original part's environmental compliance status.
Q: What packaging options are available for the substitute parts?
A: All substitute parts use SOT-23-3 surface mount package (also designated TO-236-3 or SC-59). Packaging variants such as Cut Tape (CT), Digi-Reel, or Tape & Reel (TR) are available depending on the specific part number and supplier configuration but do not affect electrical functionality.
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