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

Vishay General Semiconductor - Diodes Division BZX85C5V6-TAP

Name: BZX85C5V6-TAP
Brand: Vishay General Semiconductor - Diodes Division
SKU: BZX85C5V6-TAP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX85C5V6-TAP

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Zener Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: BZX85C5V6-TAP.pdf

Description:: DIODE ZENER 5.6V 1.3W DO204AL

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Product details

Overview

BZX85C5V6-TAP from Vishay is a silicon planar power Zener diode rated for 1.3 W total power dissipation, with a nominal Zener voltage of 5.6 V (5.2–6.0 V range), dynamic resistance ≤7 Ω at 5 mA test current, and temperature coefficient of 0 %/°C at I_Z = I_ZT, used for voltage stabilization in industrial power supplies and overvoltage protection circuits.

For engineers reviewing the BZX85C5V6-TAP datasheet, BZX85C5V6-TAP pinout, BZX85C5V6-TAP application, or BZX85C5V6-TAP equivalent, key selection criteria include its DO-41 glass package, ±5 % tolerance (C-suffix), 190 mA maximum Zener current, and thermal resistance of 130 °C/W - critical for thermal design in compact linear regulators and reference circuits.

Technical Context

This device operates as a two-terminal voltage reference with sharp reverse breakdown characteristics, designed for stable DC voltage regulation under varying load and temperature conditions. Its low dynamic resistance (≤7 Ω) ensures minimal output voltage variation across its rated Zener current range (2 mA to 190 mA), and its zero temperature coefficient at 5.6 V enables high-stability references near room temperature.

The BZX85C5V6-TAP uses a silicon planar junction structure housed in a hermetically sealed DO-41 glass case, supporting operation from –55 °C to +175 °C junction temperature. It requires no external biasing or control circuitry and functions solely via reverse-biased Zener conduction, with reverse leakage <1 µA at 2 V and admissible Zener current up to 190 mA under specified thermal conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage	5.2–6.0 V at I_ZT = 5 mA - defines stable regulation window for 5 V rail clamping
Power Dissipation	1.3 W - sets maximum continuous power handling without heatsinking at T_amb = 25 °C
Dynamic Resistance	≤7 Ω at I_ZT = 5 mA - ensures <35 mV output shift per 5 mA load change
Temperature Coefficient	0 %/°C at I_Z = I_ZT - delivers near-zero drift around 25 °C for precision references
Reverse Leakage	<1 µA at V_R = 2 V - guarantees low standby current in always-on protection circuits
Max Zener Current	190 mA - determines upper limit for sustained regulation without thermal runaway
Thermal Resistance	130 °C/W junction-to-ambient - informs PCB copper area requirements for thermal management

Pinout & Package

Package: DO-41 glass case, axial leaded, cathode identified by band. Weight ≈ 310 mg. Mechanical dimensions conform to JEDEC DO-41 standard (length 4.1 mm max, diameter 2.6 mm max, lead length ≥26 mm).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Reference ground node	Connected to system ground or lower-potential rail; carries full Zener current during regulation
Cathode	Reverse breakdown terminal / Regulated output node	Connected to input rail or protected node; maintains stable voltage relative to anode during Zener operation

Key Features

Feature	Design Value
Silicon planar construction	Enables consistent breakdown voltage grading per E24 standard and long-term stability under thermal cycling
1.3 W power rating	Supports direct regulation in medium-power analog circuits without external pass transistors
Zero TC at 5.6 V	Minimizes temperature-induced drift in reference designs operating near ambient conditions
DO-41 glass package	Provides hermetic sealing for reliability in humid or corrosive environments and compatibility with wave soldering
±5 % voltage tolerance (C-suffix)	Offers cost-optimized grade for non-critical stabilization where tight tolerance is not required

Applications

Industrial Power Supply Regulation	Overvoltage Protection Circuit
Use Scenario: Stabilizing 5 V auxiliary rails in programmable logic controllers and sensor interface modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and clamp element. Use Value: Maintains regulated 5.6 V output despite ±10 % input variation and 0–100 mA load changes, leveraging ≤7 Ω dynamic resistance.	Use Scenario: Protecting microcontroller I/O pins from transient surges on 5 V bus lines. IC Role / Device Role / Timing Role: Passive overvoltage clamp limiting voltage to 6.0 V peak. Use Value: Activates at 5.2 V to divert surge current before damage occurs, with <1 µA leakage preserving signal integrity at normal operation.
Linear Voltage Reference	Signal Level Clamping
Use Scenario: Providing stable bias voltage for op-amp comparators in battery-powered instrumentation. IC Role / Device Role / Timing Role: Precision shunt reference with zero temperature coefficient at 25 °C. Use Value: Delivers <±2 mV drift over 0–50 °C ambient range, enabling accurate threshold detection without calibration.	Use Scenario: Limiting analog sensor output swing to prevent ADC saturation in automotive cabin sensors. IC Role / Device Role / Timing Role: Bidirectional clamp (with series diode) or unidirectional Zener limiter. Use Value: Clamps positive excursions to 6.0 V while adding negligible loading (<1 µA) to the source due to low leakage.

Industrial Power Supply Regulation

Overvoltage Protection Circuit

Use Scenario: Stabilizing 5 V auxiliary rails in programmable logic controllers and sensor interface modules.

IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and clamp element.

Use Value: Maintains regulated 5.6 V output despite ±10 % input variation and 0–100 mA load changes, leveraging ≤7 Ω dynamic resistance.

Use Scenario: Protecting microcontroller I/O pins from transient surges on 5 V bus lines.

IC Role / Device Role / Timing Role: Passive overvoltage clamp limiting voltage to 6.0 V peak.

Use Value: Activates at 5.2 V to divert surge current before damage occurs, with <1 µA leakage preserving signal integrity at normal operation.

Linear Voltage Reference

Signal Level Clamping

Use Scenario: Providing stable bias voltage for op-amp comparators in battery-powered instrumentation.

IC Role / Device Role / Timing Role: Precision shunt reference with zero temperature coefficient at 25 °C.

Use Value: Delivers <±2 mV drift over 0–50 °C ambient range, enabling accurate threshold detection without calibration.

Use Scenario: Limiting analog sensor output swing to prevent ADC saturation in automotive cabin sensors.

IC Role / Device Role / Timing Role: Bidirectional clamp (with series diode) or unidirectional Zener limiter.

Use Value: Clamps positive excursions to 6.0 V while adding negligible loading (<1 µA) to the source due to low leakage.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4734A	Same 5.6 V nominal Zener voltage, but ±5 % tolerance, 1 W power rating, and 175 °C max junction temperature	Lower power handling limits use in higher-current regulation; identical DO-41 package	Select when lower cost or legacy design compatibility is prioritized over 1.3 W headroom
BZX55C5V6	Same 5.6 V rating and ±5 % tolerance, but only 0.5 W power rating and higher dynamic resistance (≤10 Ω)	Not suitable for >100 mA continuous Zener current; smaller DO-35 package with higher thermal resistance	Choose only for space-constrained low-power applications where 1.3 W capability is unnecessary

Compared with BZX85C5V6-TAP, the 1N4734A offers equivalent voltage grading and package but sacrifices 23 % power margin, while the BZX55C5V6 reduces both power capacity and thermal performance - making BZX85C5V6-TAP the optimal choice for robust 5 V stabilization in industrial-grade power circuits.

Availability

BZX85C5V6-TAP is available at Aetrix Electronics and suitable for industrial power supply regulation, overvoltage protection circuits, linear voltage reference designs, and signal level clamping applications requiring stable component supply and long-lifecycle support.

Supply support for BZX85C5V6-TAP 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 Semiconductor GmbH is a global manufacturer of discrete semiconductors and passive components, headquartered in Germany, with emphasis on reliability, precision, and industrial-grade performance.

The BZX85-Series is a family of silicon planar Zener diodes engineered for high-power voltage stabilization and clipping in demanding industrial, automotive, and telecom power systems - with the BZX85C5V6-TAP optimized for 5.6 V reference stability and thermal resilience.

FAQ

What is the Zener voltage tolerance for BZX85C5V6-TAP?

The "C" suffix in BZX85C5V6-TAP indicates ±5 % Zener voltage tolerance, meaning its measured breakdown voltage falls between 5.2 V and 6.0 V at I_ZT = 5 mA. This grading follows the international E24 standard and distinguishes it from the tighter ±2 % "B"-suffix variants like BZX85B5V6. The BZX85C5V6-TAP datasheet confirms this range in the Electrical Characteristics table.

What package type does BZX85C5V6-TAP use?

BZX85C5V6-TAP uses the DO-41 glass axial-leaded package, compliant with JEDEC standards and DIN 41880. Its mechanical dimensions are defined in the Vishay datasheet: maximum body length 4.1 mm, maximum diameter 2.6 mm, and minimum lead length 26 mm. The cathode is marked by a visible band on the glass body, and the package supports wave soldering and hermetic reliability.

What is the maximum continuous Zener current for BZX85C5V6-TAP?

The maximum admissible Zener current for BZX85C5V6-TAP is 190 mA, specified under conditions where leads are held at ambient temperature at a distance of 10 mm from the case. This value is derived from its 1.3 W power rating and 5.6 V nominal Zener voltage (P = V × I), and is validated in the Electrical Characteristics table of the Vishay BZX85-Series datasheet.

Does BZX85C5V6-TAP have a temperature coefficient that improves stability?

Yes - BZX85C5V6-TAP has a temperature coefficient of 0 %/°C at I_Z = I_ZT, meaning its Zener voltage exhibits virtually no drift with temperature near 25 °C. This zero-TC behavior is unique to the 5.6 V grade in the BZX85 family and makes BZX85C5V6-TAP especially suitable for precision reference applications where minimal thermal drift is required without active compensation.

How does the dynamic resistance of BZX85C5V6-TAP affect regulation accuracy?

The dynamic resistance of BZX85C5V6-TAP is ≤7 Ω at I_ZT = 5 mA, directly determining how much its output voltage changes with load current. For example, a 50 mA change in Zener current causes ≤350 mV deviation (50 mA × 7 Ω). This low r_ZT ensures tight regulation in shunt configurations, especially when paired with appropriate series resistance to maintain stable I_Z across operating conditions.

BZX85C5V6-TAP Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: BZX85

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Cut Tape (CT)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 5.6 V

Tolerance:: ±5%

Power - Max:: 1.3 W

Impedance (Max) (Zzt):: 7 Ohms

Current - Reverse Leakage @ Vr:: 1 µA @ 2 V

Voltage - Forward (Vf) (Max) @ If:: -

Operating Temperature:: -55°C ~ 175°C

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

BZX85C5V6-TAP FAQ

1.How can I place an order for BZX85C5V6-TAP through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX85C5V6-TAP 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 BZX85C5V6-TAP reliable?

The price and inventory of BZX85C5V6-TAP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX85C5V6-TAP is usually 5 days.

3.What payment methods are accepted for BZX85C5V6-TAP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX85C5V6-TAP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX85C5V6-TAP?

BZX85C5V6-TAP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX85C5V6-TAP 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 BZX85C5V6-TAP?

For technical support, including BZX85C5V6-TAP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX85C5V6-TAP requirements.

6.How does Aetrix verify that BZX85C5V6-TAP is sourced from the original manufacturer or authorized distributors?

All BZX85C5V6-TAP 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 BZX85C5V6-TAP meets industry standards.

7.What is the process for return or replacement of BZX85C5V6-TAP?

All BZX85C5V6-TAP units undergo pre-shipment inspection (PSI). If there is an issue with BZX85C5V6-TAP, 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 BZX85C5V6-TAP part is unused and in its original packaging.

Return procedure for BZX85C5V6-TAP:

1.Submit a request within 90 days.

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

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