CLL4696 BK Zener Diode Equivalent & Substitute Parts

Part Overview

The CLL4696 BK is a 9.1 V Zener diode rated for 500 mW power dissipation in a surface mount SOD-80 (DO-213AC, MINI-MELF) package. This component is classified as obsolete, indicating discontinued production and limited availability. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this diode specification is required but original inventory is depleted or unavailable.

Substiute Parts

CLL4696 BK

Central Semiconductor CorpIn Stock: 1161CLL4696 BK Datasheet

Current PartRFQ

CMHZ4696 BK

Central Semiconductor CorpIn Stock: 778CMHZ4696 BK Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CLL4696 BK is determined by electrical and mechanical parameter equivalence. The primary substitution criteria are:

Electrical Parameters (Must Match):

• Zener voltage: 9.1 V nominal
• Tolerance: ±5%
• Maximum power rating: 500 mW
• Reverse leakage current: 1 µA @ 6.9 V
• Forward voltage: 1.5 V @ 100 mA

Mechanical Parameters (Package Compatibility):

• Surface mount technology
• Package form factor compatibility with circuit board layout

The CMHZ4696 BK meets all electrical specifications of the CLL4696 BK. The primary difference is the package type (SOD-123 versus SOD-80), which represents a mechanical substitution requiring board layout verification. The CMHZ4696 BK is classified as active product status, ensuring continued availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

CLL4696 BK (Original Part): The CLL4696 BK is obsolete and no longer in production. While 1123 pieces are currently in stock, this represents finite inventory with no replenishment capability. Selection of this part is limited to applications where existing stock is available and immediate delivery is required.

CMHZ4696 BK (Primary Substitute): The CMHZ4696 BK is the recommended substitute for new designs and ongoing production. This part maintains electrical equivalence across all critical parameters: 9.1 V zener voltage, ±5% tolerance, 500 mW power rating, and identical leakage and forward voltage characteristics. The CMHZ4696 BK is classified as active product status with 752 pieces in current inventory, ensuring supply chain continuity.

The operating temperature range of the CMHZ4696 BK (-65 to 150°C) is narrower than the CLL4696 BK (-65 to 200°C). Applications requiring operation above 150°C junction temperature must retain the original CLL4696 BK specification or identify alternative parts with extended temperature ratings.

The package transition from SOD-80 to SOD-123 requires mechanical verification. Both packages are surface mount form factors with different footprint geometries. Circuit board layout, thermal management, and mechanical clearance must be evaluated for compatibility.

The CMHZ4696 BK carries REACH Unaffected compliance status, confirming regulatory alignment with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the CMHZ4696 BK directly replace the CLL4696 BK in existing designs?

A: Electrical substitution is direct. All zener voltage, tolerance, power rating, leakage current, and forward voltage specifications are identical. Mechanical substitution requires board layout verification due to package type change from SOD-80 to SOD-123. Footprint dimensions, pad spacing, and thermal characteristics differ between these packages.

Q: What is the significance of the operating temperature range difference?

A: The CLL4696 BK operates to 200°C junction temperature, while the CMHZ4696 BK operates to 150°C. For applications where the diode junction temperature exceeds 150°C during normal operation, the CLL4696 BK must be retained. Most commercial and industrial applications operate within the 150°C limit of the CMHZ4696 BK.

Q: Are there other equivalent parts listed for the CMHZ4696 BK?

A: The CMHZ4696 BK documentation references additional equivalent part numbers: MMSZ4696-E3-08, BZT52C9V1-G3-18, DDZ9696-7, MMSZ5239B-7-F, and SZMMSZ4696T1G. These parts share the 9.1 V zener specification and 500 mW power rating. Detailed parameter verification is required for each alternative, as package types and temperature ranges may vary.

Q: What is the difference between SOD-80 and SOD-123 packages?

A: SOD-80 (DO-213AC, MINI-MELF) and SOD-123 are both surface mount packages for small signal diodes. SOD-123 is a smaller, more compact package with different pad geometry and spacing. Circuit board designs must accommodate the specific footprint of the selected package. Thermal dissipation characteristics may differ due to package size variation.

Q: Is the CMHZ4696 BK suitable for new product designs?

A: Yes. The CMHZ4696 BK is classified as active product status with confirmed inventory availability. All electrical specifications meet the 9.1 V zener diode requirement. New designs should specify the CMHZ4696 BK to ensure long-term supply chain support and eliminate obsolescence risk associated with the CLL4696 BK.

Q: What compliance certifications apply to the CMHZ4696 BK?

A: The CMHZ4696 BK carries REACH Unaffected status, confirming compliance with European Union environmental regulations. Both parts share the same ECCN (EAR99) and HTSUS (8541.10.0050) classifications for export control and tariff purposes.