CLL4689 BK TIN/LEAD Zener Diode Equivalent & Substitute Parts

Part Overview

The CLL4689 BK TIN/LEAD is a surface mount zener diode manufactured by Central Semiconductor Corp, rated at 5.1 V nominal zener voltage with 500 mW maximum power dissipation. This component is packaged in DO-213AC (MINI-MELF, SOD-80) format and is designed for voltage regulation and protection applications in electronic circuits.

The CLL4689 BK TIN/LEAD is classified as obsolete. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and redesign activities for systems utilizing this component. Substitute parts must maintain electrical performance within specified tolerances while accommodating available packaging and compliance options.

Substiute Parts

CLL4689 BK TIN/LEAD

Central Semiconductor CorpIn Stock: 1326CLL4689 BK TIN/LEAD Datasheet

Current PartRFQ

CMHZ4689 BK TIN/LEAD

Central Semiconductor CorpIn Stock: 692CMHZ4689 BK TIN/LEAD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CLL4689 BK TIN/LEAD is determined by the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Zener voltage (Vz) must equal 5.1 V nominal
• Tolerance must be ±5% or tighter
• Maximum power dissipation must be 500 mW or greater
• Reverse leakage current must not exceed 10 µA @ 3 V
• Forward voltage drop must not exceed 1.5 V @ 100 mA

Mechanical Compatibility Criteria:

• Mounting type must be surface mount
• Package format must be compatible with SOD-80, SOD-123, or equivalent miniature surface mount configurations

Compliance Considerations:

• Product status (active vs. obsolete) affects long-term availability
• RoHS compliance status and REACH classification impact regulatory requirements

Parts meeting all electrical parameters within specified tolerances and utilizing compatible surface mount packaging are classified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

CMHZ4689 BK TIN/LEAD as Primary Substitute:

The CMHZ4689 BK TIN/LEAD meets all critical electrical specifications of the CLL4689 BK TIN/LEAD. Both components share identical zener voltage (5.1 V), tolerance (±5%), maximum power rating (500 mW), reverse leakage current (10 µA @ 3 V), and forward voltage characteristics (1.5 V @ 100 mA).

The CMHZ4689 BK TIN/LEAD is classified as active product status, ensuring continued availability and supply chain support. This contrasts with the obsolete status of the CLL4689 BK TIN/LEAD.

Package Consideration:

The primary difference between these components is packaging format. The CLL4689 BK TIN/LEAD uses SOD-80 (DO-213AC, MINI-MELF) package, while the CMHZ4689 BK TIN/LEAD uses SOD-123 package. Both are miniature surface mount packages with comparable footprint dimensions suitable for modern PCB designs. PCB layout modification may be required to accommodate the SOD-123 package geometry.

Operating Temperature Range:

The CLL4689 BK TIN/LEAD specifies an operating temperature range of -65°C to 200°C (TJ), while the CMHZ4689 BK TIN/LEAD specifies -65°C to 150°C (TJ). Applications requiring operation above 150°C (TJ) cannot use the CMHZ4689 BK TIN/LEAD as a substitute.

Compliance Status:

Both components carry EAR99 export classification and share identical HTSUS coding (8541.10.0050). The CMHZ4689 BK TIN/LEAD is REACH Unaffected, supporting regulatory compliance in international markets.

Frequently Asked Questions (FAQ)

Q: Can the CMHZ4689 BK TIN/LEAD directly replace the CLL4689 BK TIN/LEAD in existing designs?

A: Electrical substitution is valid. The CMHZ4689 BK TIN/LEAD meets all specified electrical parameters. However, the package format differs (SOD-123 vs. SOD-80). PCB layout and footprint modifications are required. Verify that the SOD-123 package dimensions are compatible with available board space and assembly equipment.

Q: What is the primary reason for substitution?

A: The CLL4689 BK TIN/LEAD is obsolete. The CMHZ4689 BK TIN/LEAD is an active product with ongoing manufacturer support and supply availability.

Q: Are there temperature limitations when using the CMHZ4689 BK TIN/LEAD?

A: Yes. The CMHZ4689 BK TIN/LEAD operates to a maximum junction temperature of 150°C, compared to 200°C for the CLL4689 BK TIN/LEAD. Applications requiring sustained operation above 150°C (TJ) must use the original part or identify alternative solutions.

Q: Do both parts have identical electrical performance?

A: Yes. Both components share identical zener voltage (5.1 V ±5%), power rating (500 mW), reverse leakage current (10 µA @ 3 V), and forward voltage characteristics (1.5 V @ 100 mA).

Q: What packaging differences exist between these parts?

A: The CLL4689 BK TIN/LEAD uses DO-213AC (MINI-MELF, SOD-80) package. The CMHZ4689 BK TIN/LEAD uses SOD-123 package. Both are surface mount formats with different physical dimensions and PCB footprints.

Q: Are there compliance or regulatory differences?

A: Both components carry EAR99 export classification and identical HTSUS coding. The CMHZ4689 BK TIN/LEAD is REACH Unaffected, supporting broader regulatory compliance.

Q: What inventory status should be considered?

A: The CLL4689 BK TIN/LEAD has 1,245 pieces in stock but is obsolete. The CMHZ4689 BK TIN/LEAD has 644 pieces in stock and is active product. Active product status ensures continued availability beyond current inventory levels.