NJU211M IC Switch SPST-NC 4 Circuit 175Ohm 16-DMP Equivalent & Substitute Parts

Part Overview

The NJU211M is a 4-circuit IC switch manufactured by Nisshinbo Micro Devices Inc., configured as a SPST-NC (Single Pole Single Throw - Normally Closed) multiplexer/demultiplexer with 1:1 channel configuration. The device operates with dual supply voltage (±15V) and features an on-state resistance of 175Ohm maximum, making it suitable for analog signal switching applications requiring low impedance paths.

The NJU211M is classified as an obsolete product. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or repair requirements for legacy systems utilizing this interface IC.

Substiute Parts

NJU211M

Nisshinbo Micro Devices Inc.In Stock: 1678NJU211M Datasheet

Current PartRFQ

NJU211M#

Nisshinbo Micro Devices Inc.In Stock: 1149NJU211M# Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NJU211M is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Switch circuit configuration: SPST - NC (Single Pole Single Throw - Normally Closed)
• Number of circuits: 4
• Multiplexer/demultiplexer ratio: 1:1
• On-state resistance (maximum): 175Ohm
• Dual supply voltage: ±15V
• Switch timing characteristics: Ton ≤ 1µs, Toff ≤ 500ns
• Charge injection: 20pC
• Channel capacitance: CS(off) = 5pF, CD(off) = 5pF
• Leakage current: IS(off) ≤ 5nA
• Crosstalk performance: -90dB @ 100kHz

Mechanical Equivalence Criteria:

• Package type: 16-SOIC (0.209", 5.30mm Width)
• Mounting type: Surface Mount
• Supplier device package: 16-DMP

Substitute parts must match all electrical parameters and mechanical specifications without deviation. Packaging format (tube vs. alternative) does not affect functional equivalence but may impact procurement and handling procedures.

Parameter Comparison

Engineering Selection Recommendations

NJU211M# as Primary Substitute:

The NJU211M# is a direct functional equivalent to the NJU211M. All electrical parameters, switching characteristics, and mechanical specifications are identical. The NJU211M# is manufactured by the same supplier (Nisshinbo Micro Devices Inc.) and maintains the same base product number (NJU211) with an active product status.

Compliance Advantages:

The NJU211M# offers improved compliance posture compared to the obsolete NJU211M:

• RoHS Compliant status (versus RoHS non-compliant for NJU211M)
• Moisture Sensitivity Level (MSL) of 1 with unlimited shelf life (versus MSL 2 with 1-year limitation)
• REACH Unaffected designation

Availability and Procurement:

The NJU211M# is available in active production with documented inventory (1066 Pcs New Original In Stock). The NJU211M is obsolete with limited remaining inventory (1645 Pcs New Original In Stock). For new designs or ongoing production requirements, the NJU211M# is the appropriate selection.

Packaging Consideration:

The NJU211M# is supplied in tube packaging, whereas the original NJU211M packaging format is not specified. Both variants use identical 16-DMP supplier device packages and 16-SOIC mechanical form factors.

Frequently Asked Questions (FAQ)

Q: Can NJU211M# be used as a direct replacement for NJU211M in existing designs?

A: Yes. The NJU211M# is electrically and mechanically identical to the NJU211M across all specified parameters. Pin configuration, signal timing, impedance characteristics, and operating voltage requirements are equivalent. Direct substitution is supported without circuit modification.

Q: What is the difference between NJU211M and NJU211M#?

A: The primary differences are product status and compliance certifications. The NJU211M is obsolete and RoHS non-compliant with MSL 2 (1-year shelf life). The NJU211M# is an active product, RoHS Compliant, with MSL 1 (unlimited shelf life). All electrical and mechanical specifications are identical.

Q: Why is the NJU211M classified as obsolete?

A: The NJU211M has been superseded by the NJU211M# variant. The manufacturer maintains the NJU211M# as the active product line. The obsolete designation indicates that new production of the NJU211M has ceased, though limited inventory may remain available.

Q: Are there any thermal or environmental operating differences between NJU211M and NJU211M#?

A: No. Both parts operate across the identical temperature range of 0°C to 70°C (TA). Environmental operating specifications are equivalent.

Q: What does the "#" designation in NJU211M# indicate?

A: The "#" suffix indicates a variant of the base product number NJU211. In this case, NJU211M# represents an updated version with improved compliance characteristics (RoHS Compliant, MSL 1) while maintaining identical electrical and mechanical functionality.

Q: Is the 16-DMP package the same as 16-SOIC?

A: The 16-DMP is the supplier device package designation used by Nisshinbo Micro Devices Inc. for this component. The mechanical form factor is 16-SOIC (0.209", 5.30mm Width). Both designations refer to the same physical package used for surface mount assembly.

Q: What is the significance of the MSL rating difference (MSL 2 vs. MSL 1)?

A: MSL (Moisture Sensitivity Level) indicates the component's sensitivity to moisture absorption during storage. MSL 2 requires reflow within 1 year of opening the package. MSL 1 has unlimited shelf life. The NJU211M# offers superior storage flexibility with MSL 1 rating.

Q: Can NJU211M be used in new production designs?

A: The NJU211M is obsolete and not recommended for new designs. The NJU211M# should be used for all new production. The NJU211M may be used only for repair or maintenance of existing legacy systems where component replacement is necessary.

Q: What is the HTSUS code for this component?

A: Both NJU211M and NJU211M# share the HTSUS code 8542.39.0001, indicating classification as integrated circuits for other purposes.