Request Quote
(Ships tomorrow)
NLAS4051DR2 Equivalent & Substitute Parts
Part Overview
The NLAS4051DR2 is an 8:1 analog multiplexer/demultiplexer IC manufactured by onsemi, housed in a 16-SOIC package. This device features a single multiplexer circuit with 26Ohm on-state resistance and operates across supply voltages of 2.5V to 5V (single supply) or ±3V (dual supply). The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Multiplexer Configuration | 8:1 |
| Number of Circuits | 1 |
| On-State Resistance (Max) | 26Ohm |
| Channel-to-Channel Matching (ΔRon) | 10Ohm |
| Voltage Supply - Single (V+) | 2.5V ~ 5V |
| Voltage Supply - Dual (V±) | ±3V |
| Switch Time (Ton/Toff Max) | 23ns / 23ns |
| -3dB Bandwidth | 95MHz |
| Charge Injection | 12pC |
| Operating Temperature | -55°C ~ 125°C |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| RoHS Status | RoHS non-compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the NLAS4051DR2 is determined by the following critical parameters:
- Multiplexer Configuration: Must be 8:1 topology
- Package Type: 16-SOIC form factor (0.154", 3.90mm Width)
- On-State Resistance: Acceptable range 26Ohm to 130Ohm (higher resistance acceptable in most applications)
- Supply Voltage Compatibility: Must support overlapping voltage ranges with the original part
- Operating Temperature Range: Must cover -55°C to 125°C or equivalent industrial range
- Switch Time Performance: Must meet or exceed 23ns specification
- Bandwidth: Must support 95MHz minimum operation
Substitute parts are grouped into two categories based on these criteria:
Category A - Direct Functional Equivalents (Texas Instruments CD74HC4051 series): These parts maintain 8:1 multiplexer configuration, 16-SOIC packaging, and extended temperature range (-55°C to 125°C). On-state resistance is higher (130Ohm) but within acceptable substitution parameters.
Category B - Compatible Alternatives (Nexperia 74HCT4051 and 74LV4051 series): These parts provide 8:1 multiplexing in 16-SOIC packages with active product status. The 74HCT4051 operates at 4.5V to 5.5V (narrower range), while 74LV4051 supports 1V to 6V (wider range). Both are RoHS3 compliant.
Parameter Comparison
| Parameter | NLAS4051DR2 | 74HCT4051D-Q100,11 | 74LV4051D,118 | CD74HC4051M96 | CD74HC4051M96G3 |
|---|---|---|---|---|---|
| Manufacturer | onsemi | Nexperia USA Inc. | Nexperia USA Inc. | Texas Instruments | Texas Instruments |
| Multiplexer Configuration | 8:1 | 8:1 | 8:1 | 8:1 | 8:1 |
| On-State Resistance (Max) | 26Ohm | 120Ohm | 85Ohm | 130Ohm | 130Ohm |
| Channel-to-Channel Matching (ΔRon) | 10Ohm | 6Ohm | 2Ohm | 5Ohm | 5Ohm |
| Voltage Supply - Single (V+) | 2.5V ~ 5V | 4.5V ~ 5.5V | 1V ~ 6V | 2V ~ 6V | 2V ~ 6V |
| Voltage Supply - Dual (V±) | ±3V | ±1V ~ 5V | - | ±1V ~ 5V | ±1V ~ 5V |
| Switch Time (Ton Max) | 23ns | 39ns | 34ns | - | - |
| Switch Time (Toff Max) | 23ns | 32ns | 29ns | - | - |
| -3dB Bandwidth | 95MHz | 180MHz | 200MHz | 180MHz | 180MHz |
| Charge Injection | 12pC | - | - | - | - |
| Operating Temperature | -55°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Package | 16-SOIC (0.154", 3.90mm) | 16-SOIC (0.154", 3.90mm) | 16-SOIC (0.154", 3.90mm) | 16-SOIC (0.154", 3.90mm) | 16-SOIC (0.154", 3.90mm) |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active | Active | Last Time Buy | Last Time Buy |
| AEC-Q100 Qualification | - | Yes | - | - | - |
Engineering Selection Recommendations
For RoHS3 Compliance Requirements: Select CD74HC4051M96, CD74HC4051M96G3, CD74HC4051MM96EP, or CD74HC4051MT from Texas Instruments. These parts maintain the extended temperature range (-55°C to 125°C) matching the original NLAS4051DR2 and are actively manufactured or available as Last Time Buy inventory.
For Automotive Applications (AEC-Q100): The 74HCT4051D-Q100,11 from Nexperia and CD74HC4051QM96Q1 from Texas Instruments are qualified to AEC-Q100 standards. The CD74HC4051QM96Q1 maintains the full temperature range (-55°C to 125°C when specified with automotive qualification).
For Active Production Status: The 74LV4051D,118 from Nexperia offers the widest single supply voltage range (1V to 6V) with active product status and highest inventory availability (1570 Pcs). This part is suitable for applications where lower on-state resistance (85Ohm) is acceptable and extended low-voltage operation is required.
For Direct Temperature Range Compatibility: CD74HC4051M96, CD74HC4051M96G3, CD74HC4051MM96EP, and CD74HC4051MT all support the full -55°C to 125°C operating range. These Texas Instruments parts are preferred when the original temperature specification must be maintained.
Frequently Asked Questions (FAQ)
Q: Can I use a substitute part with higher on-state resistance than the NLAS4051DR2?
A: Yes. The NLAS4051DR2 specifies 26Ohm maximum on-state resistance. Substitute parts with 85Ohm to 130Ohm on-state resistance are functionally compatible in most applications. Higher resistance increases signal attenuation and power dissipation; verify your circuit's impedance matching and signal integrity requirements before substitution.
Q: What is the difference between the 74HCT4051 and 74LV4051 series?
A: The 74HCT4051 operates at 4.5V to 5.5V single supply with ±1V to 5V dual supply capability. The 74LV4051 operates at 1V to 6V single supply, offering wider voltage range flexibility. The 74LV4051 has higher leakage current (2µA vs 400nA) and higher on-state resistance (85Ohm vs 120Ohm). Select based on your specific supply voltage requirements.
Q: Are all substitute parts available in 16-SOIC packaging?
A: Yes. All listed substitute parts are available in 16-SOIC (0.154", 3.90mm Width) packaging, maintaining PCB layout compatibility with the original NLAS4051DR2. The CD74HC4051NSR variant uses a wider 16-SO package (0.209", 5.30mm Width) and is not recommended for direct board-level substitution.
Q: Which substitute part has the fastest switch time?
A: The NLAS4051DR2 specifies 23ns maximum switch time (both Ton and Toff). Among substitutes with published switch time specifications, the 74LV4051D,118 offers 34ns Ton and 29ns Toff, while the 74HCT4051D-Q100,11 specifies 39ns Ton and 32ns Toff. Texas Instruments CD74HC4051 series parts do not publish switch time specifications in the provided data.
Q: Is the NLAS4051DR2 RoHS compliant?
A: No. The NLAS4051DR2 is RoHS non-compliant. All recommended substitute parts (CD74HC4051 series from Texas Instruments and 74HCT4051/74LV4051 from Nexperia) are ROHS3 compliant, meeting current environmental regulations.
Q: Can I substitute the NLAS4051DR2 in automotive applications?
A: For AEC-Q100 qualified designs, use CD74HC4051QM96Q1 (Texas Instruments) or 74HCT4051D-Q100,11 (Nexperia). The CD74HC4051QM96Q1 maintains the full -55°C to 125°C temperature range with automotive qualification. The 74HCT4051D-Q100,11 operates at -40°C to 125°C, which may be acceptable depending on your application requirements.
Q: What is the inventory status of substitute parts?
A: CD74HC4051M96 has the highest inventory (72,888 Pcs). CD74HC4051M96G3 and CD74HC4051QM96Q1 are available as Last Time Buy with 10,537 and 15,315 Pcs respectively. The 74LV4051D,118 has 1,570 Pcs in stock. For long-term production, prioritize active status parts like CD74HC4051M96 or 74LV4051D,118.
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