TLZ22D-GS08 Equivalent & Substitute Parts

Part Overview

The TLZ22D-GS08 is an active-status zener diode manufactured by Vishay General Semiconductor - Diodes Division. This component is a 22 V, 500 mW surface mount zener diode in SOD-80 MiniMELF packaging, designed for voltage regulation and protection applications in electronic circuits. The part is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained while addressing inventory availability or specific application requirements.

Substiute Parts

TLZ22D-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 17826TLZ22D-GS08 Datasheet

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CLL5251B TR PBFREE

Central Semiconductor CorpIn Stock: 3855CLL5251B TR PBFREE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLZ22D-GS08 is determined by the following critical parameters:

Electrical Compatibility:

• Zener voltage nominal rating of 22 V
• Maximum power dissipation of 500 mW
• Forward voltage and reverse leakage characteristics within acceptable operating ranges

Mechanical Compatibility:

• Surface mount mounting type
• SOD-80 MiniMELF package configuration
• DO-213AC case designation

Regulatory & Environmental Compliance:

• ROHS3 compliance status
• Moisture sensitivity level MSL 1
• Operating temperature range support

The substitute part CLL5251B TR PBFREE meets all critical substitution criteria across electrical, mechanical, and regulatory dimensions.

Parameter Comparison

Engineering Selection Recommendations

Both the TLZ22D-GS08 and CLL5251B TR PBFREE are active-status components with full ROHS3 compliance and REACH unaffected status, qualifying them for equivalent use in regulated applications. The CLL5251B TR PBFREE provides an extended operating temperature range to 200°C compared to the TLZ22D-GS08 at 175°C, and features a specified tolerance of ±5% on the zener voltage. The impedance characteristics are equivalent (30 Ohms vs. 29 Ohms), and both components maintain MSL 1 moisture sensitivity rating. Selection between these parts is based on application-specific temperature requirements and tolerance specifications rather than functional limitations.

Frequently Asked Questions (FAQ)

Q: Can the CLL5251B TR PBFREE directly replace the TLZ22D-GS08 in existing designs?

A: Yes. Both components share identical nominal zener voltage (22 V), maximum power rating (500 mW), and SOD-80 MiniMELF package configuration. Electrical and mechanical compatibility is established across all critical parameters.

Q: What is the significance of the ±5% tolerance specification on the CLL5251B TR PBFREE?

A: The CLL5251B TR PBFREE specifies a ±5% tolerance on the zener voltage, whereas the TLZ22D-GS08 does not list a tolerance specification in the provided data. This tolerance specification defines the acceptable range of zener voltage variation from the nominal 22 V rating for the Central Semiconductor part.

Q: Are there temperature range differences between these parts?

A: Yes. The CLL5251B TR PBFREE operates across -65°C to 200°C, while the TLZ22D-GS08 operates across -65°C to 175°C. Applications requiring operation above 175°C should use the CLL5251B TR PBFREE.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the TLZ22D-GS08 and CLL5251B TR PBFREE are ROHS3 compliant, REACH unaffected, and carry MSL 1 moisture sensitivity rating, qualifying them for equivalent use in regulated applications.

Q: What are the forward voltage differences between these parts?

A: The TLZ22D-GS08 specifies a maximum forward voltage of 1.5 V at 200 mA, while the CLL5251B TR PBFREE specifies 1.25 V at 200 mA. The lower forward voltage of the substitute part indicates improved forward conduction characteristics.

Q: Are the reverse leakage current specifications comparable?

A: The reverse leakage specifications are measured at different voltages: TLZ22D-GS08 at 40 nA @ 20.4 V and CLL5251B TR PBFREE at 100 nA @ 17 V. Direct comparison requires normalization to the same reference voltage; however, both values remain within acceptable ranges for zener diode applications.

Q: Is the SOD-80 package identical for both parts?

A: Yes. Both components use the SOD-80 MiniMELF package configuration with DO-213AC case designation, ensuring mechanical and footprint compatibility in surface mount applications.