CLL4691 BK Equivalent & Substitute Zener Diodes

Part Overview

The Central Semiconductor CLL4691 BK is a 6.2 V, 500 mW, ±5% tolerance surface-mount Zener diode packaged in SOD-80 (DO-213AC, MINI-MELF). It offers a reverse leakage of 10 µA at 5 V, a maximum forward voltage of 1.5 V at 100 mA, and an operating temperature range from -65°C to 200°C. This product is designated as “Obsolete,” making it necessary to identify equivalent or substitute Zener diode models with matching electrical and mechanical parameters for continued production, repair, or design-in activities.

Substiute Parts

CLL4691 BK

Central Semiconductor CorpIn Stock: 998CLL4691 BK Datasheet

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CMHZ4691 BK

Central Semiconductor CorpIn Stock: 856CMHZ4691 BK Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute Zener diodes are identified by matching their core electrical and mechanical characteristics with those of the obsolete CLL4691 BK. Acceptable substitute parts must match:

• Nominal Zener voltage (6.2 V)
• Tolerance (±5%)
• Maximum power dissipation (500 mW)
• Maximum reverse leakage (10 µA @ 5 V)
• Maximum forward voltage (1.5 V @ 100 mA)
• Mounting type (Surface Mount)
• Package compatibility (similar small-outline cases: SOD-80, SOD-123, MINI-MELF, DO-213AC)

The substitute group includes both direct equivalents and established cross-references based strictly on these parameter matches.

Parameter Comparison

Substitutes for CMHZ4691 BK (per manufacturer cross-reference): BZT52C6V2-G3-08, BZT52C6V2-13-F, DDZ6V2B-7, MMSZ5234B-G3-08, DDZ9691S-7

Engineering Selection Recommendations

Selection of replacement Zener diodes for the obsolete CLL4691 BK should prioritize active status and supply chain availability. Substitute diodes such as CMHZ4691 BK provide matching key electrical parameters and are in active production. Compliance information (ECCN: EAR99, HTSUS: 8541.10.0050, REACH status) is to be verified per each substitute’s documentation as provided. Selection should ensure that package compatibility aligns with board layout requirements.

Frequently Asked Questions (FAQ)

Q: What are the critical criteria for selecting a substitute for the CLL4691 BK Zener diode?
A: Critical criteria include Zener voltage (6.2 V), tolerance (±5%), power rating (500 mW), maximum reverse leakage (10 µA @ 5 V), forward voltage (1.5 V @ 100 mA), and compatible surface-mount package (such as SOD-80 or SOD-123).

Q: Are SOD-80 and SOD-123 packages interchangeable in PCB assemblies?
A: SOD-80 and SOD-123 are different package outlines. Ensure footprint compatibility with the target PCB. Electrical parameters remain consistent, but mechanical fit must be confirmed against the application layout.

Q: Can CMHZ4691 BK be directly substituted for CLL4691 BK?
A: CMHZ4691 BK matches the electrical characteristics of CLL4691 BK, with the primary difference in package (SOD-123 vs. SOD-80). Review mechanical requirements to determine suitability.

Q: What is the significance of product status in choosing a Zener diode?
A: Selecting an active, in-production Zener diode ensures continued availability and supply chain support, which is critical for ongoing manufacturing or servicing.

Q: Where can I find cross-referenced equivalents like BZT52C6V2-G3-08 or MMSZ5234B-G3-08?
A: Refer to the manufacturer's authorized distributors for inventory and specific documentation matching the outlined parameters. Always review package and compliance alignment relative to your application.