TLZ10B-GS18 Equivalent & Substitute Parts

Part Overview

The TLZ10B-GS18 is a 10 V, 500 mW Zener diode manufactured by Vishay General Semiconductor - Diodes Division in SOD-80 MiniMELF surface mount packaging. This component is classified as an active product with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

TLZ10B-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 768TLZ10B-GS18 Datasheet

Current PartRFQ

1N4104UR-1

Microchip TechnologyIn Stock: 9591N4104UR-1 Datasheet

MFR RecommendedRFQ

CLL5240B TR PBFREE

Central Semiconductor CorpIn Stock: 11762CLL5240B TR PBFREE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLZ10B-GS18 is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage: 10 V nominal
• Maximum power dissipation: 500 mW
• Mounting type: Surface Mount
• Operating temperature range: Minimum -65°C to 175°C

Secondary Compatibility Factors:

• Package compatibility: SOD-80 MiniMELF preferred; DO-213AA acceptable with board layout verification
• Impedance characteristics: Maximum 200 Ohms
• Reverse leakage current: Maximum 500 nA @ specified voltage
• Forward voltage drop: Maximum 1.5 V @ 200 mA
• Regulatory compliance: ROHS3 compliance preferred

The substitute parts listed below meet the primary substitution criteria and operate within the specified electrical parameters. Variations in secondary parameters are documented to enable informed component selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

TLZ10B-GS18 (Vishay General Semiconductor - Primary Part)

The TLZ10B-GS18 remains the primary component selection. It is an active product with ROHS3 compliance, REACH unaffected status, and tape & reel packaging suitable for automated assembly. The part demonstrates the lowest impedance specification at 8 Ohms and lowest reverse leakage current at 40 nA, providing superior voltage regulation characteristics.

CLL5240B TR PBFREE (Central Semiconductor - Preferred Substitute)

The CLL5240B TR PBFREE is the recommended substitute for the TLZ10B-GS18. Both components share identical package specifications (SOD-80 MiniMELF), ROHS3 compliance, and tape & reel packaging. The CLL5240B operates across an extended temperature range (-65 to 200°C) and maintains impedance characteristics within acceptable limits at 17 Ohms. This part is suitable for direct replacement in existing designs without board layout modifications.

1N4104UR-1 (Microchip Technology - Alternative Substitute)

The 1N4104UR-1 meets the core electrical specifications for zener voltage and power dissipation. However, this part exhibits RoHS non-compliance and is supplied in bulk packaging rather than tape & reel format. The package specification is DO-213AA, which differs from the SOD-80 MiniMELF standard. The impedance specification of 200 Ohms is significantly higher than the primary part. This component is suitable only when RoHS compliance is not required and when board layout accommodates the alternative package footprint.

Frequently Asked Questions (FAQ)

Q: Can the CLL5240B TR PBFREE be used as a direct replacement for the TLZ10B-GS18?

A: Yes. Both components are 10 V, 500 mW Zener diodes in SOD-80 MiniMELF packaging with ROHS3 compliance. The CLL5240B TR PBFREE is suitable for direct replacement without board layout modifications. The impedance difference (17 Ohms versus 8 Ohms) is within acceptable limits for most voltage regulation applications.

Q: What are the key differences between the TLZ10B-GS18 and the 1N4104UR-1?

A: The primary differences are package type (SOD-80 versus DO-213AA), RoHS compliance status (ROHS3 compliant versus non-compliant), packaging format (tape & reel versus bulk), and impedance specification (8 Ohms versus 200 Ohms). The 1N4104UR-1 requires board layout verification due to package differences and is not recommended for new designs requiring RoHS compliance.

Q: Does impedance variation affect circuit performance?

A: Impedance affects voltage regulation stability and transient response. The TLZ10B-GS18 and CLL5240B TR PBFREE have lower impedance values (8 and 17 Ohms respectively) compared to the 1N4104UR-1 (200 Ohms). Lower impedance provides superior regulation characteristics. Component selection should consider the specific impedance requirements of the application circuit.

Q: Are all substitute parts rated for the same temperature range?

A: No. The TLZ10B-GS18 and 1N4104UR-1 are rated from -65 to 175°C, while the CLL5240B TR PBFREE extends to 200°C. Applications requiring operation above 175°C must use the CLL5240B TR PBFREE.

Q: What is the significance of the reverse leakage current differences?

A: Reverse leakage current affects standby power consumption and voltage stability. The TLZ10B-GS18 exhibits the lowest reverse leakage at 40 nA @ 8.94 V. The CLL5240B TR PBFREE shows 3 µA @ 8 V, and the 1N4104UR-1 shows 500 nA @ 7.6 V. Applications with stringent leakage requirements should prioritize the TLZ10B-GS18.

Q: Is RoHS compliance a critical factor for part selection?

A: RoHS compliance is mandatory for products sold in regulated markets. The TLZ10B-GS18 and CLL5240B TR PBFREE are ROHS3 compliant. The 1N4104UR-1 is RoHS non-compliant and is restricted to applications where RoHS compliance is not required.

Q: Can packaging format affect component availability?

A: Yes. The TLZ10B-GS18 and CLL5240B TR PBFREE are supplied in tape & reel format suitable for automated assembly. The 1N4104UR-1 is supplied in bulk format, which may require manual handling and is less suitable for high-volume production environments.