NDS331N_D87Z N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The NDS331N_D87Z is an N-Channel MOSFET manufactured by onsemi, rated for 20V drain-to-source voltage with 1.3A continuous drain current at 25°C. The device is housed in a SOT-23-3 surface mount package and dissipates a maximum of 500mW. This part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity. Substitute parts must maintain identical electrical specifications and package compatibility to ensure direct replacement without circuit redesign.

Substiute Parts

NDS331N_D87Z

onsemiIn Stock: 688NDS331N_D87Z Datasheet

Current PartRFQ

NDS331N

onsemiIn Stock: 133849NDS331N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NDS331N_D87Z is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Equivalence Requirements:

• FET Type: N-Channel
• Technology: MOSFET (Metal Oxide)
• Drain to Source Voltage (Vdss): 20V
• Continuous Drain Current (Id) @ 25°C: 1.3A (Ta)
• On-State Resistance (Rds On Max) @ 1.5A, 4.5V: 160mOhm
• Gate Threshold Voltage (Vgs(th) Max) @ 250µA: 1V
• Gate Charge (Qg Max) @ 4.5V: 5nC
• Maximum Gate Voltage (Vgs Max): ±8V
• Input Capacitance (Ciss Max) @ 10V: 162pF
• Power Dissipation (Max): 500mW (Ta)
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Equivalence Requirements:

• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The NDS331N qualifies as a parametric equivalent and direct substitute based on complete alignment with all specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The NDS331N is the direct substitute for the obsolete NDS331N_D87Z. Both parts are manufactured by onsemi and share identical electrical specifications and mechanical packaging. The primary distinction is product status: the NDS331N_D87Z is classified as obsolete, while the NDS331N maintains active product status with significantly higher inventory availability (133,793 pieces versus 677 pieces).

The NDS331N is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for both prototype and production-volume procurement. The substitute part carries ROHS3 compliance certification, meeting current environmental and regulatory requirements. Both parts maintain REACH Unaffected status and identical moisture sensitivity classification (MSL 1, Unlimited).

No circuit modifications, layout adjustments, or thermal management changes are required when transitioning from the NDS331N_D87Z to the NDS331N. The parts are pin-compatible, electrically equivalent, and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the NDS331N directly replace the NDS331N_D87Z without any modifications?

A: Yes. The NDS331N is a direct substitute with identical electrical specifications, gate drive characteristics, thermal performance, and SOT-23-3 package pinout. No circuit redesign or board layout changes are required.

Q: What is the difference between NDS331N_D87Z and NDS331N?

A: The NDS331N_D87Z is an obsolete variant, while the NDS331N is the active production equivalent. Both parts are manufactured by onsemi with identical performance parameters. The NDS331N offers superior availability and current compliance certifications.

Q: Are there any thermal or power dissipation differences between these parts?

A: No. Both parts are rated for 500mW maximum power dissipation at ambient temperature and operate across the same temperature range (-55°C to 150°C junction temperature). Thermal management requirements remain unchanged.

Q: Is the SOT-23-3 package identical for both parts?

A: Yes. Both the NDS331N_D87Z and NDS331N use the SOT-23-3 package (also designated TO-236-3 or SC-59). Pin configuration, lead spacing, and mechanical dimensions are identical.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply.

Q: Does the NDS331N meet current environmental compliance standards?

A: Yes. The NDS331N is ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What drive voltages are supported by the NDS331N?

A: The NDS331N supports gate drive voltages from 2.7V to 4.5V for optimal on-state resistance performance, with a maximum gate voltage rating of ±8V. Gate threshold voltage is 1V maximum at 250µA drain current.

Q: Is the gate charge specification identical between the two parts?

A: Yes. Both parts specify 5nC maximum gate charge at 4.5V, ensuring identical switching speed and drive circuit requirements.