ISL6161CB-T Hot Swap Controller Equivalent & Substitute Parts

Part Overview

The ISL6161CB-T is a 2-channel hot swap controller designed for PCI Express applications, manufactured by Renesas Electronics Corporation. This device manages power distribution and fault protection in hot-swappable PCI Express environments with programmable current limiting and fault timeout capabilities.

The ISL6161CB-T carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term system maintenance where this controller is specified in active applications.

Substiute Parts

ISL6161CB-T

Renesas Electronics CorporationIn Stock: 1123ISL6161CB-T Datasheet

Current PartRFQ

ISL6161CBZA-T

Renesas Electronics CorporationIn Stock: 3782ISL6161CBZA-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL6161CB-T is determined by strict equivalence across the following parameters:

• Identical manufacturer (Renesas Electronics Corporation)
• Identical device type (2-channel hot swap controller)
• Identical package (14-SOIC)
• Identical electrical specifications (voltage supply range, current supply, operating temperature)
• Identical functional features (latched fault, programmable current limit, programmable fault timeout)
• Identical PCI Express application support

The ISL6161CBZA-T meets all substitution criteria. The primary distinction is product status and packaging format, not electrical or functional performance.

Parameter Comparison

Engineering Selection Recommendations

The ISL6161CBZA-T is the direct functional equivalent of the ISL6161CB-T. Selection between these parts is determined by regulatory and supply chain requirements:

• For new designs or systems requiring RoHS compliance: ISL6161CBZA-T is ROHS3 compliant and carries active product status, ensuring long-term availability and regulatory alignment.

• For legacy system maintenance where RoHS non-compliance is acceptable: ISL6161CB-T remains available in limited inventory (1110 pcs) but carries obsolete status.

• For high-volume procurement: ISL6161CBZA-T offers superior inventory availability (3758 pcs) and tape & reel packaging suitable for automated assembly.

Both parts are electrically and functionally identical. The choice depends on compliance requirements, production volume, and supply chain strategy rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can ISL6161CBZA-T be used as a direct replacement for ISL6161CB-T in existing designs?

A: Yes. Both parts are electrically and functionally identical across all specified parameters: 2-channel hot swap controller, 14-SOIC package, 10.5V–13.2V supply voltage, 8 mA supply current, and identical feature set. No circuit modifications are required.

Q: What is the difference between ISL6161CB-T and ISL6161CBZA-T?

A: The primary differences are product status (obsolete vs. active), packaging format (tube vs. tape & reel), RoHS compliance (non-compliant vs. ROHS3 compliant), and moisture sensitivity level (MSL 1 vs. MSL 3). Electrical and functional specifications are identical.

Q: Why is the ISL6161CB-T marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. The ISL6161CBZA-T is the active equivalent and recommended for new procurement.

Q: Are there any compatibility issues with the 14-SOIC package between these parts?

A: No. Both parts use identical 14-SOIC packaging (0.154", 3.90mm width). PCB footprints and assembly processes are interchangeable.

Q: Which part should be selected for RoHS-compliant applications?

A: ISL6161CBZA-T is ROHS3 compliant. ISL6161CB-T is RoHS non-compliant and unsuitable for applications requiring RoHS certification.

Q: What is the significance of the different MSL ratings?

A: ISL6161CB-T has MSL 1 (unlimited moisture exposure tolerance), while ISL6161CBZA-T has MSL 3 (168-hour moisture exposure limit). MSL 3 requires controlled storage and handling procedures during manufacturing. For most applications, this difference is managed through standard moisture control practices.