NCP1606BDR2G Equivalent & Substitute Parts

Part Overview

The NCP1606BDR2G is a Power Factor Correction (PFC) controller IC operating in Critical Conduction Mode (CRM), packaged in 8-SOIC surface mount configuration. This device is classified as Not For New Designs, indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary for legacy system maintenance, repair operations, and continued production support where design migration is not immediately feasible.

Substiute Parts

NCP1606BDR2G

onsemiIn Stock: 62248NCP1606BDR2G Datasheet

Current PartRFQ

NCP1607BDR2G

onsemiIn Stock: 55136NCP1607BDR2G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NCP1606BDR2G is determined by the following critical parameters:

• Functional Mode: Critical Conduction (CRM) operation
• Package Compatibility: 8-SOIC surface mount form factor with identical 0.154" (3.90mm) width
• Voltage Supply Range: Overlap or compatibility within 10.3V ~ 20V specification
• Startup Current: Electrical compatibility within specified operating conditions
• Operating Temperature Range: Support for -40°C ~ 125°C environment
• Compliance Standards: ROHS3 compliance and MSL Level 1 rating

The NCP1607BDR2G qualifies as a direct substitute based on matching CRM mode operation, identical 8-SOIC packaging, overlapping voltage supply range (9.5V ~ 20V), compatible temperature range, and equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The NCP1607BDR2G serves as a qualified substitute for the NCP1606BDR2G in applications requiring PFC controller functionality. Both devices share identical CRM operational mode, 8-SOIC packaging geometry, and temperature range specifications. The NCP1607BDR2G provides a lower minimum supply voltage threshold (9.5V versus 10.3V), expanding operational flexibility in low-voltage applications. Startup current differential (24.6 µA versus 20 µA) remains within acceptable design margins for most PFC circuit implementations.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols. The primary distinction lies in packaging format: the NCP1606BDR2G is supplied in Cut Tape format, while the NCP1607BDR2G is supplied in Tape & Reel format. Selection between these variants should be based on procurement volume requirements and assembly line compatibility rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the NCP1607BDR2G directly replace the NCP1606BDR2G without circuit modification?

A: Yes. Both devices operate in Critical Conduction Mode with identical 8-SOIC packaging and compatible electrical specifications. No circuit redesign is required for substitution.

Q: What is the significance of the voltage supply range difference (10.3V ~ 20V versus 9.5V ~ 20V)?

A: The NCP1607BDR2G supports operation at lower supply voltages. If your application operates above 10.3V, both parts are functionally equivalent. Applications operating between 9.5V and 10.3V require the NCP1607BDR2G.

Q: Does the startup current difference (20 µA versus 24.6 µA) affect circuit performance?

A: The 4.6 µA difference is negligible in most PFC applications. This parameter affects initial power-up behavior and does not impact steady-state operation or efficiency.

Q: Are there packaging considerations when switching between Cut Tape and Tape & Reel formats?

A: Packaging format affects procurement and assembly logistics but not electrical performance. Cut Tape is suitable for lower-volume or manual assembly operations, while Tape & Reel is optimized for high-volume automated assembly lines.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the NCP1606BDR2G and NCP1607BDR2G are ROHS3 compliant with MSL Level 1 rating, ensuring equivalent compliance with environmental and manufacturing standards.