NCP1602ACCSNT1G Equivalent & Substitute Parts

Part Overview

The NCP1602ACCSNT1G is a Power Factor Correction (PFC) controller IC operating in Critical Conduction (CRM) mode, manufactured by onsemi in a 6-TSOP surface mount package. This component is classified as obsolete, with 1,044 units currently available in inventory. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for ongoing design support and production continuity. The NCP1622AEASNT1G serves as the primary active substitute, offering equivalent electrical performance with improved availability and active product status.

Substiute Parts

NCP1602ACCSNT1G

onsemiIn Stock: 1124NCP1602ACCSNT1G Datasheet

Current PartRFQ

NCP1622AEASNT1G

onsemiIn Stock: 23214NCP1622AEASNT1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The NCP1622AEASNT1G qualifies as a direct substitute for the NCP1602ACCSNT1G based on the following critical parameters:

• Functional Mode: Both devices operate in Critical Conduction (CRM) mode for PFC control
• Voltage Supply Range: Identical specification of 9.5V ~ 30V
• Operating Temperature Range: Both rated -40°C ~ 125°C
• Package Compatibility: Both use SOT-23-6 Thin (TSOT-23-6) 6-TSOP packaging
• Mounting Type: Both are surface mount components
• Regulatory Compliance: Both are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications
• Moisture Sensitivity: Both rated MSL 1 (Unlimited)

The substitution is valid across all specified electrical and mechanical parameters. The primary distinction is product status and startup current specification, detailed in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

The NCP1622AEASNT1G is the appropriate substitute for the NCP1602ACCSNT1G. Selection rationale is based on the following factors:

Product Status: The NCP1602ACCSNT1G is obsolete with limited inventory (1,044 units). The NCP1622AEASNT1G maintains active product status with significantly higher availability (23,200 units), ensuring long-term supply chain reliability.

Regulatory Compliance: Both parts maintain identical compliance certifications (ROHS3, REACH unaffected, EAR99 ECCN, 8542.39.0001 HTSUS), confirming regulatory equivalence for applications requiring these certifications.

Electrical and Mechanical Equivalence: Matching voltage supply ranges, operating temperature specifications, CRM mode operation, and identical package geometry (SOT-23-6 Thin, 6-TSOP) confirm direct substitutability without circuit redesign.

Startup Current Differential: The NCP1622AEASNT1G exhibits lower startup current (70 µA versus 480 µA), representing an improvement in power efficiency during initialization phases.

Frequently Asked Questions (FAQ)

Q: Can the NCP1622AEASNT1G be used as a direct replacement for the NCP1602ACCSNT1G without circuit modifications?

A: Yes. Both devices share identical voltage supply ranges (9.5V ~ 30V), operating temperature specifications (-40°C ~ 125°C), CRM mode operation, and package geometry (SOT-23-6 Thin, 6-TSOP). No circuit redesign is required for substitution.

Q: What is the significance of the startup current difference between these parts?

A: The NCP1622AEASNT1G operates at 70 µA startup current compared to 480 µA for the NCP1602ACCSNT1G. This represents improved power efficiency during device initialization, with no negative impact on functional performance.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. Regulatory equivalence is confirmed.

Q: What packaging formats are available for the NCP1622AEASNT1G?

A: The NCP1622AEASNT1G is supplied in Tape & Reel (TR) format. The original NCP1602ACCSNT1G packaging format was not specified in available documentation.

Q: Why should I transition from the NCP1602ACCSNT1G to the NCP1622AEASNT1G?

A: The NCP1602ACCSNT1G is obsolete with limited remaining inventory. The NCP1622AEASNT1G is an active product with superior availability, identical electrical specifications, and improved startup current characteristics, making it the recommended choice for new designs and production continuity.