TLZ30D-GS08 Equivalent & Substitute Parts

Part Overview

The TLZ30D-GS08 is an active-status zener diode manufactured by Vishay General Semiconductor - Diodes Division. This component is a 30 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 and carries unlimited moisture sensitivity level (MSL 1) rating, making it suitable for standard manufacturing environments. Substitute parts are identified when original inventory becomes unavailable, when supply chain optimization is required, or when design flexibility permits equivalent component selection based on electrical and mechanical parameter matching.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	30	V
Power - Maximum	500	mW
Impedance (Maximum)	80	Ohms
Current - Reverse Leakage @ Vr	40	nA @ 27.6 V
Voltage - Forward (Maximum) @ If	1.5	V @ 200 mA
Operating Temperature Range	-65 to 175	°C
Mounting Type	Surface Mount	—
Package / Case	DO-213AC, MINI-MELF, SOD-80	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TLZ30D-GS08 are qualified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Critical Matching Parameters:

Zener voltage: 30 V nominal
Maximum power dissipation: 500 mW
Maximum impedance: 80 Ohms
Package type: DO-213AC / MINI-MELF / SOD-80
Mounting type: Surface Mount
Operating temperature range: minimum -65°C to 175°C coverage
RoHS and REACH compliance status

The BZV55-B30,115 meets all critical electrical parameters and package requirements. Both components operate within compatible temperature ranges and maintain equivalent zener voltage and power ratings. Packaging and mounting specifications are identical, enabling direct substitution in surface mount applications.

Parameter Comparison

Parameter	TLZ30D-GS08 (Vishay)	BZV55-B30,115 (NXP)	Match Status
Voltage - Zener (Nominal)	30 V	30 V	Equivalent
Power - Maximum	500 mW	500 mW	Equivalent
Impedance (Maximum)	80 Ohms	80 Ohms	Equivalent
Voltage - Forward (Maximum) @ If	1.5 V @ 200 mA	900 mV @ 10 mA	Different Test Conditions
Current - Reverse Leakage @ Vr	40 nA @ 27.6 V	50 nA @ 700 mV	Different Test Conditions
Operating Temperature Range	-65°C to 175°C	-65°C to 200°C	BZV55 Extended Range
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	Equivalent
RoHS Status	ROHS3 Compliant	Not Specified	—
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

TLZ30D-GS08 (Vishay General Semiconductor): Select this part when original component specification is required, when RoHS3 compliance documentation is mandatory, or when existing inventory supports project timelines. The component is active-status with confirmed stock availability of 90,200 pieces. RoHS3 compliance and REACH unaffected status support regulatory requirements in restricted substance applications.

BZV55-B30,115 (NXP Semiconductors): Select this substitute when Vishay TLZ30D-GS08 availability is constrained or when extended operating temperature range (-65°C to 200°C versus -65°C to 175°C) provides design margin. The BZV55-B30,115 is active-status with higher inventory availability (244,858 pieces). Both components share identical zener voltage, power rating, impedance specification, and package configuration. The substitute maintains REACH unaffected status and unlimited moisture sensitivity level rating.

Both parts are suitable for direct substitution in 30 V zener diode applications requiring 500 mW power dissipation in SOD-80 MiniMELF surface mount packages.

Frequently Asked Questions (FAQ)

Q: Can BZV55-B30,115 replace TLZ30D-GS08 in existing designs?

A: Yes. Both components share identical zener voltage (30 V), maximum power dissipation (500 mW), maximum impedance (80 Ohms), and package configuration (DO-213AC / MINI-MELF / SOD-80). Surface mount footprints are compatible. The BZV55-B30,115 provides extended operating temperature range to 200°C, offering additional thermal margin.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Zener voltage (30 V nominal), maximum power rating (500 mW), maximum impedance (80 Ohms), and package type (SOD-80 MiniMELF) are the primary parameters. Both qualified substitutes match these specifications exactly.

Q: Are there packaging differences between these parts?

A: No. Both the TLZ30D-GS08 and BZV55-B30,115 use identical package designations: DO-213AC, MINI-MELF, SOD-80. Surface mount assembly processes and PCB footprints are interchangeable.

Q: What compliance certifications apply to both parts?

A: The TLZ30D-GS08 carries RoHS3 compliance and REACH unaffected status. The BZV55-B30,115 maintains REACH unaffected status. Both components have unlimited moisture sensitivity level (MSL 1) rating.

Q: How do forward voltage specifications differ between these parts?

A: Forward voltage is specified under different test conditions. TLZ30D-GS08 specifies 1.5 V maximum at 200 mA, while BZV55-B30,115 specifies 900 mV maximum at 10 mA. These different test currents reflect manufacturer characterization methods and do not affect substitution eligibility for zener diode applications.

Q: Is the extended temperature range of BZV55-B30,115 significant for typical applications?

A: The BZV55-B30,115 operates to 200°C maximum versus 175°C for TLZ30D-GS08. This 25°C extended range provides additional thermal margin in high-temperature environments but is not required for standard industrial applications operating within -65°C to 175°C specifications.

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