Request Quote
(Ships tomorrow)
MM74HC4051WM Equivalent & Substitute Parts
Part Overview
The MM74HC4051WM is an 8:1 multiplexer/demultiplexer interface IC manufactured by onsemi in a 16-SOIC package with 100Ohm on-state resistance. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The MM74HC4051WM operates across a supply voltage range of 2V to 6V (single supply) or ±2V to 6V (dual supply), with a maximum on-state resistance of 100Ohm and channel-to-channel matching of 15Ohm.
Substiute Parts
Key Parameters
| Parameter | MM74HC4051WM |
|---|---|
| Multiplexer/Demultiplexer Circuit | 8:1 |
| Number of Circuits | 1 |
| On-State Resistance (Max) | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 15Ohm |
| Voltage - Supply, Single (V+) | 2V ~ 6V |
| Voltage - Supply, Dual (V±) | ±2V ~ 6V |
| Switch Time (Ton, Toff) (Max) | 41ns, 32ns |
| -3dB Bandwidth | 35MHz |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 90pF |
| Current - Leakage (IS(off)) (Max) | 100nA |
| Crosstalk | -50dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MM74HC4051WM is determined by the following critical parameters:
- Multiplexer Configuration: Must be 8:1 with single circuit
- On-State Resistance: Maximum 100Ohm (allows parts with equal or lower resistance)
- Supply Voltage Compatibility: Must support the required voltage range or broader range
- Package Type: 16-SOIC surface mount form factor
- Operating Temperature Range: Must cover or exceed -40°C to 85°C minimum
The substitute parts listed below meet these core electrical and mechanical requirements. Variations in secondary parameters such as bandwidth, leakage current, and channel capacitance reflect different semiconductor process technologies and design approaches, but do not preclude functional substitution when the primary parameters align.
Parameter Comparison
| Parameter | MM74HC4051WM | MC74HC4051ADWG | MC74HC4051ADWR2G | 74HC4051D,653 | HEF4051BT,653 | MAX4051ESE+T | TC74HC4051AF(EL,F) |
|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | Nexperia USA Inc. | Nexperia USA Inc. | Analog Devices Inc./Maxim Integrated | Toshiba Semiconductor and Storage |
| Multiplexer/Demultiplexer Circuit | 8:1 | 8:1 | 8:1 | 8:1 | 8:1 | 8:1 | 8:1 |
| On-State Resistance (Max) | 100Ohm | 100Ohm | 100Ohm | 120Ohm | 155Ohm | 100Ohm | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 15Ohm | 10Ohm | 10Ohm | 6Ohm | 5Ohm | 12Ohm (Max) | 5Ohm |
| Voltage - Supply, Single (V+) | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 2V ~ 10V | 3V ~ 15V | 2V ~ 16V | 2V ~ 6V |
| Voltage - Supply, Dual (V±) | ±2V ~ 6V | ±2V ~ 6V | ±2V ~ 6V | ±1.5V ~ 5V | - | ±2.7V ~ 8V | ±2V ~ 6V |
| Switch Time (Ton, Toff) (Max) | 41ns, 32ns | - | - | 51ns, 42ns | - | 175ns, 150ns | 18ns, 29ns |
| -3dB Bandwidth | 35MHz | 80MHz | 80MHz | 180MHz | 70MHz | - | 85MHz |
| Current - Leakage (IS(off)) (Max) | 100nA | 200nA | 200nA | 400nA | 200nA | 1nA | 100nA |
| Crosstalk | -50dB @ 1MHz | - | - | - | -50dB @ 1MHz | -90dB @ 100kHz | -50dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C | -55°C ~ 125°C | -55°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.209", 5.30mm Width) |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active |
| RoHS Status | - | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 3 (168 Hours) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Direct Replacements (Same Package Footprint - 0.295" Width):
MC74HC4051ADWG and MC74HC4051ADWR2G are pin-compatible direct replacements from onsemi with identical electrical specifications to the MM74HC4051WM. Both parts are active products with ROHS3 compliance. The primary difference is packaging: MC74HC4051ADWG is supplied in tube format, while MC74HC4051ADWR2G is supplied in tape and reel format. Both support the same voltage ranges and on-state resistance. These are the preferred substitutes for applications requiring minimal design changes.
Alternative Substitutes (Different Package Footprint):
74HC4051D,653 (Nexperia), HEF4051BT,653 (Nexperia), MAX4051ESE+T (Analog Devices/Maxim), and TC74HC4051AF(EL,F) (Toshiba) are functionally equivalent 8:1 multiplexer ICs with different package dimensions. These parts feature active product status and full RoHS compliance. Selection among these alternatives depends on specific application requirements:
- 74HC4051D,653 offers the highest bandwidth (180MHz) and lowest channel-to-channel matching variation (6Ohm), with extended supply voltage range to 10V single supply.
- HEF4051BT,653 supports the widest single supply voltage range (3V to 15V) but has higher on-state resistance (155Ohm).
- MAX4051ESE+T provides the lowest leakage current (1nA) and superior crosstalk performance (-90dB @ 100kHz), suitable for low-noise applications.
- TC74HC4051AF(EL,F) delivers the fastest switch times (18ns, 29ns) and is available from Toshiba with RoHS compliance.
All substitute parts maintain the 8:1 multiplexer configuration, single circuit topology, and surface mount technology. Package footprint differences require PCB layout verification before implementation.
Frequently Asked Questions (FAQ)
Q: Can MC74HC4051ADWG directly replace MM74HC4051WM without PCB modifications?
A: Yes. MC74HC4051ADWG is a pin-compatible direct replacement with identical package dimensions (16-SOIC, 0.295" width), electrical specifications, and pinout. No PCB layout changes are required.
Q: What is the difference between MC74HC4051ADWG and MC74HC4051ADWR2G?
A: Both parts are electrically identical. The difference is packaging format: MC74HC4051ADWG is supplied in tube packaging, while MC74HC4051ADWR2G is supplied in tape and reel format for automated assembly. Select based on your procurement and assembly process requirements.
Q: Can I use 74HC4051D,653 as a substitute if my PCB layout allows different package dimensions?
A: Yes, 74HC4051D,653 is functionally equivalent with 8:1 multiplexer configuration and 100Ohm on-state resistance. However, the package footprint differs (16-SOIC, 0.154" width versus 0.295" width). PCB layout modifications are required. Verify pin compatibility and trace routing before implementation.
Q: Why does HEF4051BT,653 have higher on-state resistance (155Ohm) than the MM74HC4051WM (100Ohm)?
A: HEF4051BT,653 is manufactured using a different semiconductor process technology by Nexperia. While the on-state resistance is higher, it remains within acceptable limits for most 8:1 multiplexer applications. Verify that your circuit design tolerates this resistance value before selection.
Q: Which substitute part has the best performance for low-noise applications?
A: MAX4051ESE+T offers the lowest leakage current (1nA) and superior crosstalk performance (-90dB @ 100kHz), making it suitable for low-noise signal switching applications. However, it has slower switch times (175ns, 150ns) compared to other alternatives.
Q: Are all substitute parts RoHS compliant?
A: Yes. All listed substitute parts carry RoHS compliance certifications (ROHS3 or RoHS Compliant), meeting environmental and regulatory requirements for new designs.
Q: What is the significance of Moisture Sensitivity Level (MSL) differences?
A: MSL indicates moisture absorption limits during storage and handling. MM74HC4051WM, 74HC4051D,653, HEF4051BT,653, MAX4051ESE+T, and TC74HC4051AF(EL,F) all have MSL 1 (unlimited moisture sensitivity), requiring standard dry storage. MC74HC4051ADWG and MC74HC4051ADWR2G have MSL 3 (168 hours), requiring more controlled storage conditions and bake-out procedures before reflow soldering.
Q: Can I substitute parts with different operating temperature ranges?
A: Substitution is acceptable only if the substitute part's operating temperature range meets or exceeds your application requirements. For example, MC74HC4051ADWG and MC74HC4051ADWR2G support -55°C to 125°C, which exceeds the MM74HC4051WM range of -40°C to 85°C. Verify your specific temperature requirements before selection.
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