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

onsemi 1N6016B_T50R

Name: 1N6016B_T50R
Brand: onsemi
SKU: 1N6016B_T50R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N6016B_T50R

Manufacturer:: onsemi

Category:: Single Zener Diodes

Package:: DO-204AH, DO-35, Axial

Datasheet:: 1N6016B_T50R.pdf

Description:: DIODE ZENER 47V 500MW DO35

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1N6016B_T50R from Fairchild Semiconductor is a 44.65 V ±5% Zener diode in DO-35 glass package, rated for 500 mW power dissipation at TL ≤ 75°C with 4.0 mW/°C derating, 2 mA test current, and 170 Ω zener impedance at IZ; used for precision voltage regulation and reference in low-power analog circuits.

For engineers reviewing the 1N6016B_T50R datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, thermal limits, leakage behavior at 36 V, and direct alternative options for voltage reference design and overvoltage protection.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load and temperature conditions. Its 44.65 V nominal Zener voltage is specified at 2 mA test current, with 5% tolerance and 170 Ω dynamic impedance at that bias point.

The device features 0.1 mA maximum leakage current at 36 V reverse voltage, 225 mA maximum Zener current (IZM), and 900 Ω knee impedance at 250 μA, enabling reliable clamping and reference stability in low-current applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	44.65 V min / 47 V max at 2 mA - defines stable regulation range for reference or clamp circuits
Power Dissipation (P_D)	500 mW @ TL ≤ 75°C - sets maximum continuous power handling before thermal derating begins
Zener Impedance (Z_Z)	170 Ω @ I_Z = 2 mA - indicates voltage regulation stiffness under nominal bias
Leakage Current (I_R)	0.1 mA max @ V_R = 36 V - ensures minimal parasitic current in standby or high-impedance nodes
Max Zener Current (I_ZM)	225 mA - determines peak surge capability and safe operating area under transient loads
Operating Temp Range	–65°C to +200°C - supports deployment in automotive under-hood and industrial environments
Forward Voltage (V_F)	1.2 V max @ I_F = 200 mA - confirms low forward conduction loss if used bidirectionally

Pinout & Package

DO-35 glass axial package with cathode indicated by color band; two-terminal device requiring no orientation-specific PCB layout beyond standard axial lead placement.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Reverse-biased reference node	Connected to lower potential side in Zener configuration; enables voltage clamping when cathode is biased higher
Cathode	Reference output terminal	Marked end of DO-35 body; carries regulated voltage referenced to anode; must be held at higher potential than anode for breakdown operation

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Enables predictable regulation without post-manufacture trimming in cost-sensitive designs
Low leakage at 36 V (≤0.1 mA)	Minimizes error current in high-impedance reference dividers and battery-powered systems
DO-35 glass package	Provides hermetic sealing and stable long-term parameter drift for industrial-grade reliability
225 mA I_ZM rating	Supports robust transient suppression in signal line protection without external series limiting resistors
–65°C to +200°C operating range	Validates use in extreme ambient conditions including engine control units and downhole electronics

Applications

Voltage Reference for ADC/DAC	Overvoltage Clamp in Sensor Interface
Use Scenario: Provides stable 44.65 V reference for 16-bit SAR ADC reference buffers and DAC output scaling circuits. IC Role / Device Role / Timing Role: Precision voltage reference source establishing full-scale input range for analog-to-digital conversion. Use Value: Tight 5% tolerance and low 170 Ω Z_Z minimize code-width variation and integral nonlinearity in measurement systems.	Use Scenario: Clamps transients on 36 V sensor supply lines in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Reverse-biased overvoltage protector limiting rail excursion during ESD or inductive kick events. Use Value: 0.1 mA leakage at 36 V ensures negligible loading on upstream regulators while clamping spikes above 44.65 V.
Low-Power Bias Generator	Field-Programmable Logic Reference
Use Scenario: Generates stable bias voltage for op-amp input stages in battery-operated instrumentation amplifiers. IC Role / Device Role / Timing Role: Low-current Zener reference supplying fixed offset to amplifier common-mode input network. Use Value: 2 mA test current and 225 mA I_ZM allow operation from high-value current sources while surviving fault currents.	Use Scenario: Sets configuration voltage threshold for FPGA I/O bank voltage detection in reconfigurable logic systems. IC Role / Device Role / Timing Role: Voltage-level detector element defining valid V_CCIO startup condition for programmable logic devices. Use Value: DO-35 hermeticity and –65°C to +200°C range ensure consistent trip point across environmental stress testing.

Voltage Reference for ADC/DAC

Overvoltage Clamp in Sensor Interface

Use Scenario: Provides stable 44.65 V reference for 16-bit SAR ADC reference buffers and DAC output scaling circuits.

IC Role / Device Role / Timing Role: Precision voltage reference source establishing full-scale input range for analog-to-digital conversion.

Use Value: Tight 5% tolerance and low 170 Ω Z_Z minimize code-width variation and integral nonlinearity in measurement systems.

Use Scenario: Clamps transients on 36 V sensor supply lines in industrial PLC analog input modules.

IC Role / Device Role / Timing Role: Reverse-biased overvoltage protector limiting rail excursion during ESD or inductive kick events.

Use Value: 0.1 mA leakage at 36 V ensures negligible loading on upstream regulators while clamping spikes above 44.65 V.

Low-Power Bias Generator

Field-Programmable Logic Reference

Use Scenario: Generates stable bias voltage for op-amp input stages in battery-operated instrumentation amplifiers.

IC Role / Device Role / Timing Role: Low-current Zener reference supplying fixed offset to amplifier common-mode input network.

Use Value: 2 mA test current and 225 mA I_ZM allow operation from high-value current sources while surviving fault currents.

Use Scenario: Sets configuration voltage threshold for FPGA I/O bank voltage detection in reconfigurable logic systems.

IC Role / Device Role / Timing Role: Voltage-level detector element defining valid V_CCIO startup condition for programmable logic devices.

Use Value: DO-35 hermeticity and –65°C to +200°C range ensure consistent trip point across environmental stress testing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N6016RLG	Same 44.65 V Zener voltage, 5% tolerance, DO-35 package, but marked with "RLG" suffix indicating RoHS-compliant lead-free finish	No functional difference; identical electrical specs and thermal ratings; suitable for same PCB footprint	Select 1N6016RLG when RoHS compliance and Pb-free soldering process compatibility are required
BZX55-C43	43 V nominal Zener voltage (±5%), 500 mW rating, DO-35, but higher 250 Ω Z_Z and 0.5 mA leakage at 34.4 V	Lower voltage rating and higher impedance reduce accuracy in precision references; acceptable for general-purpose clamping	Choose BZX55-C43 only where 43 V regulation suffices and tighter Z_Z or lower leakage is not critical

Compared with 1N6016B_T50R, 1N6016RLG offers identical regulation performance with RoHS compliance, while BZX55-C43 trades 1.65 V lower nominal voltage and reduced regulation fidelity for broader vendor availability in legacy designs.

Availability

1N6016B_T50R is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and low-power bias generation requiring stable component supply in industrial automation, test equipment, and embedded sensor systems.

Supply support for 1N6016B_T50R 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

Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power management, analog, and discrete components before its acquisition by ON Semiconductor in 2016.

The 1N6016B_T50R belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, engineered for stable voltage reference and transient suppression in cost-sensitive, high-reliability industrial and automotive applications.

FAQ

What is the Zener voltage tolerance of the 1N6016B_T50R?

The 1N6016B_T50R has a ±5% Zener voltage tolerance, meaning its nominal 44.65 V breakdown voltage falls between 42.42 V and 46.88 V at 2 mA test current. This tolerance is confirmed in the Fairchild 1N5985B–1N6025B datasheet Rev. C2, Table on page 2. The 1N6016B_T50R maintains this specification across its full operating temperature range.

Does the 1N6016B_T50R have a specified forward voltage?

Yes, the 1N6016B_T50R has a maximum forward voltage of 1.2 V at 200 mA forward current, as stated in the Absolute Maximum Ratings section of the Fairchild datasheet. This value applies to forward conduction mode and is relevant when the device is used in bidirectional protection schemes or as a low-drop rectifier in specific configurations.

What is the maximum leakage current for the 1N6016B_T50R at 36 V reverse bias?

The 1N6016B_T50R exhibits a maximum leakage current of 0.1 mA at 36 V reverse voltage (V_R), per the Electrical Characteristics table on page 2 of the Fairchild datasheet. This low leakage ensures minimal error contribution in high-impedance reference networks and preserves battery life in always-on monitoring circuits.

Is the 1N6016B_T50R compatible with lead-free soldering processes?

The 1N6016B_T50R itself is not explicitly marked as lead-free in the provided datasheet; however, its RoHS-compliant counterpart 1N6016RLG is documented with identical electrical specs and a lead-free finish. For lead-free assembly, engineers should specify 1N6016RLG or verify Pb-free status directly with Aetrix Electronics' material declarations for the 1N6016B_T50R lot.

What is the thermal derating behavior of the 1N6016B_T50R above 75°C?

The 1N6016B_T50R derates linearly at 4.0 mW/°C above a lead temperature of 75°C, as defined in the Absolute Maximum Ratings table. This means its usable power dissipation drops from 500 mW at 75°C to 400 mW at 100°C, ensuring safe operation within its SOA curve when mounted with 3/8″ lead length per JEDEC standards.

1N6016B_T50R Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: DO-204AH, DO-35, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Voltage - Zener (Nom) (Vz):: 47 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 170 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 36 V

Voltage - Forward (Vf) (Max) @ If:: 1.2 V @ 200 mA

Operating Temperature:: -65°C ~ 200°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-35

1N6016B_T50R FAQ

1.How can I place an order for 1N6016B_T50R through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N6016B_T50R 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 1N6016B_T50R reliable?

The price and inventory of 1N6016B_T50R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6016B_T50R is usually 5 days.

3.What payment methods are accepted for 1N6016B_T50R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6016B_T50R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N6016B_T50R?

1N6016B_T50R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N6016B_T50R 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 1N6016B_T50R?

For technical support, including 1N6016B_T50R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6016B_T50R requirements.

6.How does Aetrix verify that 1N6016B_T50R is sourced from the original manufacturer or authorized distributors?

All 1N6016B_T50R 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 1N6016B_T50R meets industry standards.

7.What is the process for return or replacement of 1N6016B_T50R?

All 1N6016B_T50R units undergo pre-shipment inspection (PSI). If there is an issue with 1N6016B_T50R, 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 1N6016B_T50R part is unused and in its original packaging.

Return procedure for 1N6016B_T50R:

1.Submit a request within 90 days.

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

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