TZMB10-GS18 Equivalent & Substitute Parts

Part Overview

The TZMB10-GS18 is a Zener diode rated at 10 V nominal voltage with 500 mW power dissipation, manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates across the automotive temperature range (-65°C to 175°C) and carries AEC-Q101 qualification. The part is actively produced and available in high inventory quantities. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, packaging preferences, or design flexibility needs.

Substiute Parts

TZMB10-GS18

Vishay General Semiconductor - Diodes DivisionIn Stock: 7031TZMB10-GS18 Datasheet

Current PartRFQ

TZMB10-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 2289TZMB10-GS08 Datasheet

Parametric EquivalentRFQ

1N4104UR-1

Microchip TechnologyIn Stock: 9591N4104UR-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TZMB10-GS18 are classified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Equivalence Parameters:

• Zener voltage (nominal): 10 V
• Power dissipation rating: 500 mW
• Operating temperature range: -65°C to 175°C
• Surface mount configuration

Packaging Compatibility:

• SOD-80 MiniMELF package family (DO-213AC, DO-213AA)

Compliance & Qualification:

• AEC-Q101 automotive qualification (preferred for automotive applications)
• RoHS compliance status

Substitutes are grouped into two categories: Parametric Equivalents (identical electrical specifications and packaging) and Manufacturer Recommended Alternatives (equivalent electrical performance with acceptable parameter variations for non-critical applications).

Parameter Comparison

Engineering Selection Recommendations

TZMB10-GS08 (Parametric Equivalent): This substitute is electrically and mechanically identical to the TZMB10-GS18. Both parts are manufactured by Vishay, carry AEC-Q101 qualification, and comply with ROHS3 standards. The only difference is packaging format: TZMB10-GS08 is supplied in Cut Tape (CT) & Digi-Reel format, while TZMB10-GS18 is supplied in Tape & Reel (TR). Selection between these two depends on procurement and assembly requirements. Both are suitable for automotive applications without design modification.

1N4104UR-1 (Manufacturer Recommended Alternative): This Microchip Technology part meets the core electrical requirements (10 V nominal, 500 mW power rating, -65°C to 175°C operating range) and shares the same surface mount configuration. However, the following parameter variations exist: tolerance is ±5% (versus ±2%), impedance is 200 Ohms (versus 15 Ohms), reverse leakage current is 500 nA @ 7.6 V (versus 100 nA @ 7.5 V), and forward voltage is 1.1 V @ 200 mA (versus 1.5 V @ 200 mA). Additionally, this part lacks automotive grade designation and AEC-Q101 qualification, and is RoHS non-compliant. The 1N4104UR-1 is suitable for non-automotive applications or where the specified parameter variations are acceptable to the design. Package compatibility requires verification: DO-213AA differs from DO-213AC.

Frequently Asked Questions (FAQ)

Q: Can TZMB10-GS08 be used as a direct replacement for TZMB10-GS18?

A: Yes. Both parts are electrically identical with matching zener voltage (10 V), tolerance (±2%), power rating (500 mW), impedance (15 Ohms), and operating temperature range (-65°C to 175°C). Both carry AEC-Q101 qualification and ROHS3 compliance. The difference is packaging format only: TZMB10-GS08 uses Cut Tape & Digi-Reel while TZMB10-GS18 uses Tape & Reel. Direct substitution is valid for designs where the packaging format change is compatible with assembly processes.

Q: Is the 1N4104UR-1 suitable for automotive applications?

A: The 1N4104UR-1 lacks automotive grade designation and AEC-Q101 qualification. It is not recommended for automotive applications requiring these certifications. Use of this part in automotive designs requires design review and approval based on application-specific requirements.

Q: What are the key differences between TZMB10-GS18 and 1N4104UR-1?

A: The primary differences are: (1) Tolerance: TZMB10-GS18 is ±2% versus 1N4104UR-1 at ±5%; (2) Impedance: TZMB10-GS18 is 15 Ohms maximum versus 1N4104UR-1 at 200 Ohms; (3) Reverse leakage: TZMB10-GS18 is 100 nA @ 7.5 V versus 1N4104UR-1 at 500 nA @ 7.6 V; (4) Forward voltage: TZMB10-GS18 is 1.5 V @ 200 mA versus 1N4104UR-1 at 1.1 V @ 200 mA; (5) Automotive qualification: TZMB10-GS18 is AEC-Q101 qualified while 1N4104UR-1 is not; (6) RoHS compliance: TZMB10-GS18 is ROHS3 compliant while 1N4104UR-1 is non-compliant; (7) Package: TZMB10-GS18 uses DO-213AC while 1N4104UR-1 uses DO-213AA.

Q: Are there package compatibility issues between the substitute parts?

A: TZMB10-GS18 and TZMB10-GS08 both use SOD-80 MiniMELF packaging (DO-213AC) and are mechanically compatible. The 1N4104UR-1 uses DO-213AA packaging, which is a different physical form factor. Verify PCB footprint compatibility before selecting 1N4104UR-1 as a substitute.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel packaging supplies components on tape segments or alternative reel formats, suitable for lower-volume or mixed-component assembly. Electrical and mechanical specifications are identical; the difference is in supply format and handling.

Q: Can I use 1N4104UR-1 in place of TZMB10-GS18 in a precision voltage reference circuit?

A: The ±5% tolerance and higher impedance (200 Ohms versus 15 Ohms) of the 1N4104UR-1 may affect circuit performance in precision applications. The TZMB10-GS18 with ±2% tolerance and lower impedance provides tighter voltage regulation. Substitution requires circuit analysis to confirm acceptable performance margins.