NCP45651IMNTWG Equivalent & Substitute Parts

Part Overview

The NCP45651IMNTWG is a high-side load switch from onsemi's ecoSWITCH™ series, designed for power management applications requiring controlled power distribution. This device functions as a Power Switch/Driver with 1:1 input-to-output ratio, supporting up to 24A output current with integrated fault protection mechanisms. The part is designated as Last Time Buy, indicating limited future availability and making identification of equivalent alternatives essential for design continuity and supply chain planning.

Substiute Parts

NCP45651IMNTWG

onsemiIn Stock: 6905NCP45651IMNTWG Datasheet

Current PartRFQ

NCP45650IMNTWG

onsemiIn Stock: 4332NCP45650IMNTWG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NCP45651IMNTWG is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Output current rating: 24A maximum
• Load voltage range: 1V ~ 13.5V
• Supply voltage range: 3V ~ 5.5V
• On-resistance (Rds On): 6.7mOhm typical
• Fault protection features: Current Limiting (Fixed), Over Temperature, Short Circuit, UVLO
• Interface type: On/Off, Non-Inverting input
• Output configuration: High Side, N-Channel, single output (1:1 ratio)

Mechanical & Environmental Equivalence Criteria:

• Package: 12-VFDFN Exposed Pad (3x3 DFN)
• Mounting: Surface Mount
• Operating temperature: -40°C ~ 85°C
• Moisture sensitivity: MSL 3 (168 Hours)
• RoHS compliance: ROHS3 Compliant

The NCP45650IMNTWG meets all specified electrical and mechanical parameters, establishing it as a parametric equivalent within the ecoSWITCH™ series.

Parameter Comparison

Engineering Selection Recommendations

NCP45650IMNTWG as Primary Substitute:

The NCP45650IMNTWG is a direct parametric equivalent to the NCP45651IMNTWG across all specified electrical, mechanical, and environmental parameters. Both devices share identical ratings for load voltage, supply voltage, output current, on-resistance, fault protection architecture, and package specifications. Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring compatibility in regulated manufacturing environments.

Supply Chain Considerations:

Given the Last Time Buy status of both the main part and substitute, inventory availability becomes a critical factor. The NCP45650IMNTWG currently maintains 4,300 units in stock compared to 6,854 units for the NCP45651IMNTWG. For applications requiring long-term component availability, evaluation of alternative load switch architectures from the broader ecoSWITCH™ series or competing manufacturers may be necessary.

Compliance & Certification:

Both parts maintain identical regulatory compliance profiles: ROHS3 Compliant, REACH Unaffected status, and MSL 3 rating. The NCP45650IMNTWG carries ECCN classification EAR99, while the main part carries ECCN 3A991A2. This difference does not affect functional substitution but may impact export documentation requirements depending on destination jurisdiction.

Frequently Asked Questions (FAQ)

Q: Can the NCP45650IMNTWG be used as a direct replacement for the NCP45651IMNTWG in existing designs?

A: Yes. The NCP45650IMNTWG is a parametric equivalent with identical electrical specifications (24A output current, 6.7mOhm Rds On, 1V-13.5V load voltage range, 3V-5.5V supply voltage), identical fault protection features, and identical package configuration (12-VFDFN Exposed Pad). No circuit modifications are required.

Q: Are there any differences in the package or pinout between these two parts?

A: No. Both parts use the 12-VFDFN Exposed Pad package in 3x3mm form factor with identical surface mount specifications. Pinout and PCB footprint compatibility is guaranteed.

Q: What is the significance of the Last Time Buy status for both parts?

A: Last Time Buy designation indicates that onsemi will discontinue production of these parts after current inventory is depleted. For applications requiring long-term component availability beyond current stock levels, alternative load switch solutions should be evaluated during the design phase.

Q: Do both parts meet the same compliance and regulatory requirements?

A: Both parts are ROHS3 Compliant and REACH Unaffected with identical MSL 3 ratings. The ECCN classification differs (EAR99 for NCP45650IMNTWG versus 3A991A2 for NCP45651IMNTWG), which may affect export documentation but does not impact functional performance or domestic use.

Q: What are the key parameters that determine substitution eligibility for this load switch category?

A: Substitution eligibility is determined by: maximum output current (24A), load voltage range (1V-13.5V), supply voltage range (3V-5.5V), on-resistance specification (6.7mOhm), fault protection architecture (Current Limiting, Over Temperature, Short Circuit, UVLO), package type (12-VFDFN), and operating temperature range (-40°C to 85°C). All parameters must match exactly for direct substitution.

Q: Is the NCP45650IMNTWG available in the same packaging options as the NCP45651IMNTWG?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging with identical MSL 3 moisture sensitivity specifications and 168-hour storage requirements.