TLZ6V8B-GS08 Equivalent & Substitute Parts

Part Overview

The TLZ6V8B-GS08 is an active-status Zener diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates at a nominal Zener voltage of 6.8 V with a maximum power dissipation of 500 mW in a surface mount SOD-80 MiniMELF package. The device is designed for voltage regulation and protection applications requiring stable reverse-bias operation within the specified temperature range of -65°C to 175°C.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including Zener voltage, power rating, package type, and operating temperature range. Identifying qualified substitutes ensures design flexibility and supply chain continuity.

Substiute Parts

TLZ6V8B-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 207047TLZ6V8B-GS08 Datasheet

Current PartRFQ

BZV55-B6V8,115

NXP SemiconductorsIn Stock: 68961BZV55-B6V8,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLZ6V8B-GS08 is determined by strict alignment of the following critical parameters:

Electrical Equivalence Criteria:

• Nominal Zener voltage of 6.8 V
• Maximum power dissipation of 500 mW
• Reverse leakage current of 2 µA @ 4 V
• Surface mount technology compatibility

Mechanical Compatibility Criteria:

• Package type: DO-213AC, MINI-MELF, SOD-80
• Mounting classification: Surface Mount

Environmental & Compliance Criteria:

• Operating temperature range must encompass or exceed -65°C to 175°C
• RoHS3 compliance status
• Moisture Sensitivity Level 1 (Unlimited)

The BZV55-B6V8,115 from NXP Semiconductors meets all substitution criteria through equivalent Zener voltage, power rating, package configuration, and compliance certifications. Impedance and forward voltage characteristics remain within acceptable operational parameters for typical voltage regulation and protection circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Component: TLZ6V8B-GS08

The TLZ6V8B-GS08 maintains active product status with confirmed ROHS3 compliance and unlimited moisture sensitivity classification. This component is suitable for applications requiring the specified impedance characteristics and forward voltage performance. Inventory availability of 206,976 pieces supports production requirements.

Substitute Component: BZV55-B6V8,115

The BZV55-B6V8,115 from NXP Semiconductors provides functional equivalence across all critical electrical parameters. The substitute component offers an extended operating temperature range (-65°C to 200°C versus -65°C to 175°C), providing additional thermal margin. Impedance of 15 Ohms versus 8 Ohms represents a measurable difference; however, this parameter remains within acceptable limits for standard voltage regulation and protection applications. The substitute maintains active product status and REACH Unaffected classification. Inventory availability of 68,906 pieces supports component sourcing.

Selection between the primary and substitute component should be based on application-specific impedance requirements, thermal operating conditions, and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the BZV55-B6V8,115 directly replace the TLZ6V8B-GS08 in existing designs?

A: Yes, the BZV55-B6V8,115 provides direct functional substitution. Both components share identical nominal Zener voltage (6.8 V), maximum power dissipation (500 mW), package configuration (SOD-80 MiniMELF), and mounting type (surface mount). The impedance difference of 7 Ohms (8 Ohms versus 15 Ohms) is within acceptable operational tolerance for typical voltage regulation and protection circuits.

Q: What is the significance of the impedance difference between these components?

A: Impedance (Zzt) affects the dynamic response of the Zener diode under transient conditions. The TLZ6V8B-GS08 specifies 8 Ohms maximum impedance, while the BZV55-B6V8,115 specifies 15 Ohms maximum. For applications requiring precise transient suppression or high-frequency noise filtering, the lower impedance of the primary component may provide superior performance. Standard voltage regulation applications typically accommodate the higher impedance of the substitute without functional degradation.

Q: Are there temperature range considerations when substituting these components?

A: The BZV55-B6V8,115 operates across -65°C to 200°C, exceeding the TLZ6V8B-GS08 range of -65°C to 175°C. For applications operating near the upper temperature limit of 175°C, both components perform equivalently. For applications requiring operation above 175°C, the substitute component provides extended thermal capability.

Q: Do both components meet the same compliance standards?

A: The TLZ6V8B-GS08 is confirmed ROHS3 compliant with REACH Unaffected status. The BZV55-B6V8,115 carries REACH Unaffected classification. Both components maintain Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions.

Q: What packaging format differences exist between these components?

A: Both components are supplied in SOD-80 MiniMELF surface mount packages with identical mechanical dimensions and land patterns. The primary component is supplied in Tape & Reel (TR) packaging, while the substitute is supplied in Bulk packaging. This difference affects handling and automated assembly processes but does not impact electrical or mechanical compatibility.

Q: How do the forward voltage characteristics compare?

A: The TLZ6V8B-GS08 specifies maximum forward voltage of 1.5 V @ 200 mA, while the BZV55-B6V8,115 specifies 900 mV @ 10 mA. These measurements are taken at different current levels, making direct comparison impractical. Both values remain within acceptable ranges for forward-biased operation in protection and regulation applications.