Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Vishay General Semiconductor - Diodes Division TZMC5V1-GS08

Name: TZMC5V1-GS08
Brand: Vishay General Semiconductor - Diodes Division
SKU: TZMC5V1-GS08
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TZMC5V1-GS08

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Zener Diodes

Package:: DO-213AC, MINI-MELF, SOD-80

Datasheet:: TZMC5V1-GS08.pdf

Description:: DIODE ZENER 5.1V 500MW SOD80

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,809

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

TZMC5V1-GS08 from Vishay Semiconductors is a MiniMELF (SOD-80) packaged 5.1 V ±5 % tolerance Zener diode rated for 500 mW power dissipation, with 5 mA test current, <0.1 μA reverse leakage at 4.8 V, and 60 Ω dynamic resistance at I_ZT. It delivers precise voltage reference and stabilization in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.

For engineers reviewing the TZMC5V1-GS08 datasheet, TZMC5V1-GS08 pinout, TZMC5V1-GS08 application, or TZMC5V1-GS08 equivalent, key selection criteria include its tight 5.1 V nominal Zener voltage, MiniMELF thermal performance (R_thJA = 500 K/W on standard PCB), low noise, and high stability under pulse and DC bias conditions.

Technical Context

The TZMC5V1-GS08 operates as a single-element silicon Zener diode with sharp reverse breakdown characteristics and low noise generation. Its temperature coefficient of Zener voltage is -0.02 to +0.02 %/K, enabling stable regulation across -65 °C to +175 °C junction temperature range.

Designed for surface-mount use in MiniMELF (SOD-80) package, it supports reliable operation at up to 175 °C junction temperature and withstands peak soldering temperatures of 260 °C per J-STD-020. The device exhibits <2 μA reverse leakage at 95 % of minimum Zener voltage (4.56 V) and forward voltage ≤1.5 V at 200 mA.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	4.8–5.4 V (nominal 5.1 V); ensures accurate voltage clamping within ±5 % tolerance at 5 mA test current
Power Dissipation (P_tot)	500 mW; supports continuous regulation in compact PCB layouts without forced cooling
Reverse Leakage (I_R)	<0.1 μA at 4.8 V; minimizes standby current loss in battery-powered reference circuits
Dynamic Resistance (Z_Z)	<60 Ω at 5 mA; maintains tight output regulation under varying load currents
Temperature Coefficient (T_KVZ)	-0.02 to +0.02 %/K; enables stable reference performance across industrial temperature range
Junction Temperature (T_j)	175 °C max; allows operation in high-ambient environments such as automotive engine control modules
Package	MiniMELF (SOD-80); provides superior thermal dissipation vs. SOD-123 and compatibility with high-reliability reflow profiles

Pinout & Package

MiniMELF (SOD-80) glass-body cylindrical package with axial cathode band marking; total weight ≈31 mg; UL 94 V-0 molding compound; MSL level 1 (unlimited floor life).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / low-impedance path during forward bias	Connected to ground or lower-potential node in shunt regulator configuration
Cathode	Zener breakdown terminal / regulated output node	Connected to input voltage source; delivers stable 5.1 V reference when reverse-biased above breakdown

Key Features

Feature	Design Value
Very sharp reverse characteristic	Enables clean, low-hysteresis voltage clamping with minimal knee voltage spread
Low reverse current level	<0.1 μA at 4.8 V reduces quiescent power draw in always-on monitoring circuits
Very high stability	Guaranteed ±5 % V_Z tolerance and <2 % long-term drift support precision reference integrity
Low noise	Minimizes voltage perturbation in sensitive analog signal chains and ADC reference supplies
MiniMELF thermal robustness	R_thJA = 500 K/W on 50 mm × 50 mm × 1.6 mm PCB enables sustained 500 mW operation without heatsinking

Applications

Power Supply Feedback	Overvoltage Protection
Use Scenario: Regulating output voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Shunt reference element providing error signal to optocoupler or TL431 comparator input. Use Value: Tight 5.1 V ±5 % tolerance and low dynamic resistance ensure ±1 % output regulation accuracy under line/load transients.	Use Scenario: Clamping transient surges on microcontroller I/O lines or sensor inputs. IC Role / Device Role / Timing Role: Passive crowbar element diverting excess energy to ground before IC damage threshold. Use Value: Sub-μA leakage preserves signal integrity in high-impedance sensing paths while responding within nanoseconds to ESD events.
Reference Voltage Source	Current Limiter Bias
Use Scenario: Generating stable 5.1 V reference for ADCs, DACs, or comparators in data acquisition systems. IC Role / Device Role / Timing Role: Precision voltage node defining full-scale or threshold levels in analog front-ends. Use Value: -0.02 to +0.02 %/K temperature coefficient limits reference drift to <±0.5 mV over -40 to +85 °C ambient.	Use Scenario: Setting bias current for LED drivers or transistor amplifiers via constant-current sink. IC Role / Device Role / Timing Role: Voltage-defined current source using series resistor and fixed Zener drop. Use Value: Low 60 Ω dynamic resistance ensures current stability within ±2 % across 10–100 mA load variations.

Power Supply Feedback

Overvoltage Protection

Use Scenario: Regulating output voltage in isolated flyback or buck-derived auxiliary supplies.

IC Role / Device Role / Timing Role: Shunt reference element providing error signal to optocoupler or TL431 comparator input.

Use Value: Tight 5.1 V ±5 % tolerance and low dynamic resistance ensure ±1 % output regulation accuracy under line/load transients.

Use Scenario: Clamping transient surges on microcontroller I/O lines or sensor inputs.

IC Role / Device Role / Timing Role: Passive crowbar element diverting excess energy to ground before IC damage threshold.

Use Value: Sub-μA leakage preserves signal integrity in high-impedance sensing paths while responding within nanoseconds to ESD events.

Reference Voltage Source

Current Limiter Bias

Use Scenario: Generating stable 5.1 V reference for ADCs, DACs, or comparators in data acquisition systems.

IC Role / Device Role / Timing Role: Precision voltage node defining full-scale or threshold levels in analog front-ends.

Use Value: -0.02 to +0.02 %/K temperature coefficient limits reference drift to <±0.5 mV over -40 to +85 °C ambient.

Use Scenario: Setting bias current for LED drivers or transistor amplifiers via constant-current sink.

IC Role / Device Role / Timing Role: Voltage-defined current source using series resistor and fixed Zener drop.

Use Value: Low 60 Ω dynamic resistance ensures current stability within ±2 % across 10–100 mA load variations.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode voltage reference applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55C5V1 (ON Semiconductor)	DO-35 package; ±5 % tolerance; 500 mW rating; higher R_thJA (~700 K/W); 100 Ω Z_Z	Less thermally efficient; suitable only for low-power, non-continuous duty cycles	Select when DO-35 through-hole assembly is required and thermal margin exceeds 100 K/W
MMSZ5231B (Diodes Inc.)	SOD-123 package; ±5 % tolerance; 500 mW rating; 170 Ω Z_Z; 10× higher I_R (≤1 μA)	Higher dynamic impedance degrades regulation accuracy in precision feedback loops	Prefer for cost-sensitive, space-constrained designs where ±2 % regulation is acceptable

Compared with BZX55C5V1 and MMSZ5231B, TZMC5V1-GS08 offers superior thermal performance (500 K/W vs. ≥700 K/W), lower dynamic resistance (60 Ω vs. ≥100 Ω), and tighter leakage control (<0.1 μA), making it optimal for high-stability, surface-mount voltage reference and regulation tasks.

Availability

TZMC5V1-GS08 is available at Aetrix Electronics and suitable for voltage stabilization, overvoltage protection, and precision reference applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for TZMC5V1-GS08 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for industrial, automotive, and computing markets.

The TZM-Series Zener diodes are engineered for precision voltage regulation in space-constrained, thermally demanding applications-emphasizing low noise, sharp knee characteristics, and extended temperature capability.

FAQ

What is the Zener voltage tolerance of TZMC5V1-GS08?

The TZMC5V1-GS08 has a Zener voltage tolerance of ±5 %, with a specified range of 4.8 V (min) to 5.4 V (max) at 5 mA test current. This tolerance is guaranteed per the TZMC family specification and applies to all units shipped under this ordering code. The nominal Zener voltage is 5.1 V, and the device meets this tolerance without binning or post-manufacture screening.

What package type does TZMC5V1-GS08 use, and what are its key mechanical features?

TZMC5V1-GS08 uses the MiniMELF (SOD-80) package: a glass-encapsulated cylindrical surface-mount device with axial cathode band marking. Key features include 3.3–3.7 mm body length, 1.4–1.6 mm diameter, UL 94 V-0 flammability rating, and MSL level 1 moisture sensitivity-enabling unlimited floor life and compatibility with standard reflow profiles up to 260 °C peak.

How does TZMC5V1-GS08 perform thermally on a standard PCB?

On a standard 50 mm × 50 mm × 1.6 mm FR-4 PCB, TZMC5V1-GS08 achieves a junction-to-ambient thermal resistance (R_thJA) of 500 K/W. At its 500 mW maximum power dissipation, this results in a 250 K temperature rise above ambient-well within its 175 °C maximum junction temperature limit at ambient ≤25 °C. Derating is required above 25 °C ambient per the datasheet curve.

What is the reverse leakage current specification for TZMC5V1-GS08, and under what conditions is it measured?

TZMC5V1-GS08 specifies reverse leakage current (I_R) of <0.1 μA at V_R = 4.8 V (95 % of minimum V_Z), measured at T_j = 25 °C. At elevated temperature (T_j = 150 °C), leakage remains ≤2 μA under the same voltage condition. This ultra-low leakage supports low-power and battery-backed applications where standby current must be minimized.

Can TZMC5V1-GS08 be used as a substitute for older DO-35 Zener diodes like 1N4733A?

TZMC5V1-GS08 is not a direct physical or electrical drop-in replacement for 1N4733A due to differing packages (MiniMELF vs. DO-35), thermal characteristics (R_thJA = 500 K/W vs. ~600 K/W), and dynamic resistance (60 Ω vs. ~17 Ω). While both provide 5.1 V ±5 % regulation, TZMC5V1-GS08 requires SMT layout adaptation and offers better thermal performance but slightly higher Z_Z. Electrical validation in the target circuit is required before substitution.

TZMC5V1-GS08 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: TZM

Package/Case:: DO-213AC, MINI-MELF, SOD-80

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 5.1 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 60 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 1 V

Voltage - Forward (Vf) (Max) @ If:: 1.5 V @ 200 mA

Operating Temperature:: 175°C

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-80 MiniMELF

TZMC5V1-GS08 FAQ

1.How can I place an order for TZMC5V1-GS08 through Aetrix?

Please submit a Request for Quotation (RFQ) for TZMC5V1-GS08 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TZMC5V1-GS08 reliable?

The price and inventory of TZMC5V1-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TZMC5V1-GS08 is usually 5 days.

3.What payment methods are accepted for TZMC5V1-GS08?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TZMC5V1-GS08 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TZMC5V1-GS08?

TZMC5V1-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TZMC5V1-GS08 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TZMC5V1-GS08?

For technical support, including TZMC5V1-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TZMC5V1-GS08 requirements.

6.How does Aetrix verify that TZMC5V1-GS08 is sourced from the original manufacturer or authorized distributors?

All TZMC5V1-GS08 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TZMC5V1-GS08 meets industry standards.

7.What is the process for return or replacement of TZMC5V1-GS08?

All TZMC5V1-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with TZMC5V1-GS08, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TZMC5V1-GS08 part is unused and in its original packaging.

Return procedure for TZMC5V1-GS08:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design

Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …