TLZ33B-GS08 Equivalent & Substitute Parts

Part Overview

The TLZ33B-GS08 is a Zener diode manufactured by Vishay General Semiconductor - Diodes Division, rated at 33 V nominal with 500 mW maximum power dissipation in a surface mount SOD-80 MiniMELF package. This component is classified as Active and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

TLZ33B-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 35435TLZ33B-GS08 Datasheet

Current PartRFQ

CLL5257B TR PBFREE

Central Semiconductor CorpIn Stock: 12528CLL5257B TR PBFREE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLZ33B-GS08 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Zener voltage nominal rating: 33 V
• Maximum power dissipation: 500 mW
• Surface mount package type: SOD-80 MiniMELF (DO-213AC)

Compliance & Environmental Criteria:

• RoHS3 compliance status
• Moisture sensitivity level: MSL 1 (Unlimited)
• Operating temperature range compatibility

The substitute part CLL5257B TR PBFREE meets all electrical and mechanical requirements for direct substitution. Both components share identical nominal zener voltage, maximum power rating, and package configuration. Compliance certifications (RoHS3, REACH Unaffected, EAR99 ECCN) are equivalent across both parts.

Parameter Comparison

Engineering Selection Recommendations

Both the TLZ33B-GS08 and CLL5257B TR PBFREE are Active status components with full RoHS3 compliance and unlimited moisture sensitivity rating. Selection between these parts is based on the following factors:

TLZ33B-GS08 (Vishay General Semiconductor):

• Primary selection when Vishay component qualification is specified
• Operating temperature range: -65°C to 175°C
• Impedance specification: 65 Ohms maximum
• Reverse leakage current: 40 nA @ 28.8 V

CLL5257B TR PBFREE (Central Semiconductor):

• Direct substitute when Central Semiconductor qualification is acceptable
• Extended operating temperature range: -65°C to 200°C
• Lower impedance specification: 58 Ohms maximum
• Lower forward voltage drop: 1.25 V @ 200 mA (versus 1.5 V)
• Zener voltage tolerance specification: ±5%

Both components are mechanically and electrically compatible for surface mount assembly in SOD-80 MiniMELF package configuration. Compliance certifications are equivalent (ROHS3, REACH Unaffected, EAR99 ECCN).

Frequently Asked Questions (FAQ)

Q: Can CLL5257B TR PBFREE be used as a direct replacement for TLZ33B-GS08?

A: Yes. Both components share identical nominal zener voltage (33 V), maximum power dissipation (500 mW), and surface mount package type (SOD-80 MiniMELF). Mechanical and electrical compatibility is confirmed. Both maintain RoHS3 compliance and MSL 1 rating.

Q: What are the differences in electrical performance between these parts?

A: The CLL5257B TR PBFREE exhibits lower impedance (58 Ohms versus 65 Ohms), lower forward voltage drop (1.25 V versus 1.5 V @ 200 mA), and higher reverse leakage current (100 nA @ 25 V versus 40 nA @ 28.8 V). The CLL5257B also specifies ±5% zener voltage tolerance. Operating temperature range extends to 200°C for the CLL5257B versus 175°C for the TLZ33B-GS08.

Q: Are there package compatibility concerns?

A: No. Both components use identical package designation: DO-213AC, MINI-MELF, SOD-80. Surface mount assembly processes and PCB footprints are interchangeable.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both components are RoHS3 compliant, REACH Unaffected, and classified under ECCN EAR99. Both carry HTSUS code 8541.10.0050. Moisture sensitivity level is MSL 1 (Unlimited) for both parts.

Q: Which part should be selected for high-temperature applications?

A: The CLL5257B TR PBFREE supports operating temperatures up to 200°C, compared to 175°C maximum for the TLZ33B-GS08. Selection depends on specific application temperature requirements.

Q: Are there inventory or lead time considerations?

A: The TLZ33B-GS08 shows 35,400 pieces in stock. The CLL5257B TR PBFREE shows 12,492 pieces in stock. Availability should be confirmed with the component supplier for current project requirements.