Request Quote
(Ships tomorrow)
MIC861BC5-TR Equivalent & Substitute Parts
Part Overview
The MIC861BC5-TR is a general-purpose operational amplifier manufactured by Microchip Technology, featuring a single circuit in a 5-pin SC-70 (SOT-353) surface-mount package. This device is classified as a rail-to-rail output amplifier with a Teeny™ series designation. The MIC861BC5-TR is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing circuit designs while meeting current supply chain requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 1 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 0.12 | V/µs |
| Gain Bandwidth Product | 400 | kHz |
| -3dB Bandwidth | 650 | kHz |
| Current - Input Bias | 20 | pA |
| Voltage - Input Offset | 2 | mV |
| Current - Supply | 4.6 | µA |
| Current - Output / Channel | 24 | mA |
| Voltage - Supply Span (Min) | 2.43 | V |
| Voltage - Supply Span (Max) | 5.25 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 5-TSSOP, SC-70-5, SOT-353 | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | RoHS non-compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the MIC861BC5-TR is determined by the following critical parameters:
Package Compatibility: The MIC861BC5-TR uses a 5-pin SC-70 (SOT-353) package. Substitute parts must either use the identical SC-70-5 package or the functionally equivalent SOT-23-5 package, as both are 5-pin surface-mount configurations suitable for the same PCB footprints with minor layout adjustments.
Electrical Characteristics: Substitute parts must support the supply voltage range of 2.43 V to 5.25 V minimum. The MIC861BC5-TR operates as a general-purpose, rail-to-rail amplifier with low input bias current (20 pA) and moderate slew rate (0.12 V/µs). Substitute parts meeting or exceeding these specifications are functionally compatible.
Amplifier Classification: The MIC861BC5-TR is a general-purpose amplifier. Substitute parts classified as general-purpose or zero-drift amplifiers are acceptable, as zero-drift amplifiers provide enhanced performance characteristics while maintaining functional compatibility.
Single Circuit Configuration: All substitute parts must contain exactly one amplifier circuit per package.
Surface Mount Technology: All substitute parts must use surface-mount technology with identical or compatible mounting requirements.
Parameter Comparison
| Parameter | MIC861BC5-TR | LMP2021MF/NOPB | LMP2021MFX/NOPB | LMV721IDCKR | LMV721IDCKT | LMV821M7/NOPB | LMV821M7X/NOPB | LMX321ICT |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | STMicroelectronics |
| Amplifier Type | General Purpose | Zero-Drift | Zero-Drift | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Output Type | Rail-to-Rail | — | — | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Slew Rate (V/µs) | 0.12 | 2.6 | 2.6 | 5.25 | 5.25 | 2 | 2 | 0.7 |
| Gain Bandwidth Product (kHz) | 400 | 5000 | 5000 | 10000 | 10000 | 5600 | 5600 | 1300 |
| Current - Input Bias (pA) | 20 | 25 | 25 | 260000 | 260000 | 100000 | 100000 | 27 |
| Voltage - Input Offset (mV) | 2 | 0.0004 | 0.0004 | 0.08 | 0.08 | 3.5 | 3.5 | 4 |
| Current - Supply (µA) | 4.6 | 1100 | 1100 | 1030 | 1030 | 300 | 300 | 130 |
| Current - Output / Channel (mA) | 24 | 50 | 50 | — | — | 45 | 45 | 70 |
| Voltage - Supply Span Min (V) | 2.43 | 2.2 | 2.2 | 2.2 | 2.2 | 2.5 | 2.5 | 2.3 |
| Voltage - Supply Span Max (V) | 5.25 | 5.5 | 5.5 | 5 | 5 | 5.5 | 5.5 | 5.5 |
| Operating Temperature (°C) | -40 to 85 | -40 to 125 | -40 to 125 | -40 to 105 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 125 |
| Package / Case | 5-TSSOP, SC-70-5, SOT-353 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | 5-TSSOP, SC-70-5, SOT-353 | 5-TSSOP, SC-70-5, SOT-353 | 5-TSSOP, SC-70-5, SOT-353 | 5-TSSOP, SC-70-5, SOT-353 |
| Supplier Device Package | SC-70-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 | SC-70-5 | SC-70-5 | SC-70-5 | SC-70-5 |
| Product Status | Discontinued at DiGi Electronics | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
SC-70-5 Package Direct Substitutes (Identical Footprint):
The following parts provide direct SC-70-5 package compatibility with the MIC861BC5-TR:
LMV721IDCKR and LMV721IDCKT (Texas Instruments) are general-purpose, rail-to-rail amplifiers in SC-70-5 packages. Both are ROHS3 compliant and active products. LMV721IDCKR supports -40°C to 105°C operation, while LMV721IDCKT supports -40°C to 85°C operation, matching the MIC861BC5-TR temperature range. These parts feature enhanced slew rate (5.25 V/µs) and gain bandwidth product (10 MHz) compared to the original device.
LMV821M7/NOPB and LMV821M7X/NOPB (Texas Instruments and National Semiconductor respectively) are general-purpose, rail-to-rail amplifiers in SC-70-5 packages. Both are ROHS3 compliant and active products with -40°C to 85°C operating temperature matching the MIC861BC5-TR. These parts feature moderate slew rate (2 V/µs) and gain bandwidth product (5.6 MHz).
LMX321ICT (STMicroelectronics) is a general-purpose, rail-to-rail amplifier in SC-70-5 package. This part is ROHS3 compliant and active. It supports -40°C to 125°C operation and features slew rate of 0.7 V/µs and gain bandwidth product of 1.3 MHz, providing performance characteristics closest to the original MIC861BC5-TR.
SOT-23-5 Package Substitutes (Footprint Adaptation Required):
LMP2021MF/NOPB and LMP2021MFX/NOPB (Texas Instruments) are zero-drift amplifiers in SOT-23-5 packages. Both are ROHS3 compliant and active products. These parts support -40°C to 125°C operation and feature significantly enhanced performance with slew rate of 2.6 V/µs and gain bandwidth product of 5 MHz. Zero-drift architecture provides superior input offset voltage (0.4 µV) compared to the MIC861BC5-TR (2 mV).
LMV821M5/NOPB and LMV821M5X/NOPB (National Semiconductor) are general-purpose, rail-to-rail amplifiers in SOT-23-5 packages. Both are active products with -40°C to 85°C operating temperature. These parts feature slew rate of 2 V/µs and gain bandwidth product of 5.6 MHz.
Compliance Considerations:
All substitute parts listed are ROHS3 compliant, addressing the RoHS non-compliance status of the discontinued MIC861BC5-TR. All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity level, consistent with the original device. All parts are classified as EAR99 and maintain REACH Unaffected status.
Frequently Asked Questions (FAQ)
Q: Can I use a SOT-23-5 package part as a direct replacement for the SC-70-5 MIC861BC5-TR?
A: SOT-23-5 and SC-70-5 are different physical packages. SOT-23-5 parts (LMP2021MF/NOPB, LMP2021MFX/NOPB, LMV821M5/NOPB, LMV821M5X/NOPB) require PCB footprint modification. SC-70-5 parts (LMV721IDCKR, LMV721IDCKT, LMV821M7/NOPB, LMV821M7X/NOPB, LMX321ICT) provide identical footprint compatibility without layout changes.
Q: What is the difference between zero-drift and general-purpose amplifiers?
A: Zero-drift amplifiers (LMP2021MF/NOPB, LMP2021MFX/NOPB) employ specialized circuitry to minimize input offset voltage, achieving 0.4 µV compared to 2 mV in the MIC861BC5-TR. General-purpose amplifiers provide standard performance characteristics. Both classifications are functionally compatible for most applications.
Q: Does the MIC861BC5-TR require RoHS compliance replacement?
A: The MIC861BC5-TR is RoHS non-compliant. All listed substitute parts are ROHS3 compliant, meeting current regulatory requirements for new designs and procurement.
Q: Which substitute part most closely matches the MIC861BC5-TR performance?
A: LMX321ICT provides the closest performance match with slew rate of 0.7 V/µs and gain bandwidth product of 1.3 MHz, compared to the MIC861BC5-TR specifications of 0.12 V/µs and 400 kHz respectively. This part maintains SC-70-5 package compatibility and -40°C to 125°C extended operating temperature range.
Q: Are all substitute parts available in active production?
A: All listed substitute parts have Active product status. The MIC861BC5-TR is discontinued at DiGi Electronics, making these alternatives necessary for ongoing supply chain continuity.
Q: What is the supply voltage compatibility range for substitutes?
A: The MIC861BC5-TR operates at 2.43 V to 5.25 V. All substitute parts support minimum supply voltage of 2.2 V to 2.5 V and maximum supply voltage of 5 V to 5.5 V, providing full compatibility with the original operating range.
Q: Can I substitute LMV721IDCKR for LMV721IDCKT?
A: Both parts are identical except for operating temperature range. LMV721IDCKR supports -40°C to 105°C, while LMV721IDCKT supports -40°C to 85°C. Selection depends on application temperature requirements. Both use SC-70-5 packages and are ROHS3 compliant.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts