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

Microchip Technology 1N4714-1

Name: 1N4714-1
Brand: Microchip Technology
SKU: 1N4714-1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N4714-1

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: 1N4714-1.pdf

Description:: DIODE ZENER 33V 500MW DO204AH

Quantity:: RFQ Add To RFQ list

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Inventory:2,710

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Product details

Overview

1N4714-1 from Microsemi is a 33 V, ±5% tolerance, 500 mW axial-leaded Zener diode in DO-35 (DO-204AH) glass package, rated for junction temperatures from –65 °C to +175 °C and tested at 50 µA Zener current. It delivers stable voltage regulation across 10–100 µA operating range and is used in precision reference, power supply feedback, and overvoltage protection circuits.

For engineers reviewing the 1N4714-1 datasheet, 1N4714-1 pinout, 1N4714-1 application, or 1N4714-1 equivalent, key selection criteria include its 33 V nominal Zener voltage, 0.33 V maximum voltage regulation (∆V_Z), 0.01 µA reverse leakage at 25.4 V, 25.0 mA maximum Zener current, and DO-35 mechanical compatibility with through-hole PCB layouts.

Technical Context

The 1N4714-1 operates as a two-terminal voltage reference device relying on controlled avalanche breakdown in silicon. Its Zener voltage is specified at I_ZT = 50 µA, with guaranteed regulation window of 0.33 V between 10 µA and 100 µA test points, confirming tight knee behavior for low-current stability.

It features an internal metallurgical bond per MIL-PRF-19500 screening options, hermetically sealed glass DO-35 construction, cathode band polarity marking, and RoHS-compliant matte-tin plating available for commercial-grade units - all supporting reliability-critical analog and power management functions.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Zener Voltage	33 V at 50 µA - defines primary regulation setpoint for feedback loops and references
Zener Voltage Tolerance	±5% - establishes absolute output uncertainty band without tighter-tolerance variants
Max Voltage Regulation ∆V_Z	0.33 V (10–100 µA) - quantifies regulation linearity critical for low-current biasing
Max Reverse Leakage Current	0.01 µA at 25.4 V - ensures minimal parasitic loading in high-impedance reference nodes
Max Zener Current I_ZM	25.0 mA - sets upper limit for safe DC power dissipation at 0.5 W rating
Junction Temperature Range	–65 °C to +175 °C - enables operation in extended industrial and aerospace environments
Thermal Resistance R_θJL	250 °C/W - determines lead-to-junction temperature rise under steady-state conduction

Pinout & Package

Package: DO-35 (DO-204AH), hermetically sealed axial-leaded glass case with tin-lead or RoHS-compliant matte-tin plated leads; cathode identified by colored band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference ground	Connected to circuit ground or lower-potential node when used in reverse-bias regulation
Cathode	Zener breakdown terminal / regulated output node	Banded end; connects to unregulated input rail to deliver stable 33 V to load or feedback path

Key Features

Feature	Design Value
Internal metallurgical bond	Enables compliance with MIL-PRF-19500 up-screening requirements for enhanced reliability
Guaranteed regulation 10–100 µA	Supports stable reference generation even in ultra-low-power bias networks
Minimal capacitance	Low C_J preserves high-frequency response in timing and RF detector applications
Non-sensitive to ESD	Withstands MIL-STD-750 Method 1020 ESD stress without parameter shift or failure
Inherently radiation hard	Validated per MicroNote 050 for use in space-qualified and high-radiation environments

Applications

Power Supply Feedback Reference	Overvoltage Protection Clamp
Use Scenario: Used in TL431-based adjustable SMPS feedback networks to set precise output voltage. IC Role / Device Role / Timing Role: Provides stable 33 V reference to comparator input, enabling accurate error amplification. Use Value: Maintains ±5% output regulation despite line/load variation due to tight ∆V_Z and low leakage.	Use Scenario: Placed across sensitive IC inputs to clamp transient spikes above 33 V. IC Role / Device Role / Timing Role: Acts as passive shunt limiter, diverting excess energy to ground before damage occurs. Use Value: Low 0.01 µA leakage avoids signal distortion; fast avalanche response limits overshoot.
Precision Analog Biasing	Aerospace Voltage Reference
Use Scenario: Supplies bias current to op-amp input stages requiring stable, low-noise DC offset. IC Role / Device Role / Timing Role: Functions as low-drift, low-capacitance voltage source in high-Z analog front-ends. Use Value: Minimal capacitance and ESD immunity prevent signal coupling and latch-up in sensor interfaces.	Use Scenario: Embedded in satellite power conditioning modules where long-term stability is mission-critical. IC Role / Device Role / Timing Role: Serves as primary voltage standard in radiation-hardened regulation subsystems. Use Value: Inherent radiation hardness and –65 °C to +175 °C operation ensure functionality in LEO/MEO orbits.

Power Supply Feedback Reference

Overvoltage Protection Clamp

Use Scenario: Used in TL431-based adjustable SMPS feedback networks to set precise output voltage.

IC Role / Device Role / Timing Role: Provides stable 33 V reference to comparator input, enabling accurate error amplification.

Use Value: Maintains ±5% output regulation despite line/load variation due to tight ∆V_Z and low leakage.

Use Scenario: Placed across sensitive IC inputs to clamp transient spikes above 33 V.

IC Role / Device Role / Timing Role: Acts as passive shunt limiter, diverting excess energy to ground before damage occurs.

Use Value: Low 0.01 µA leakage avoids signal distortion; fast avalanche response limits overshoot.

Precision Analog Biasing

Aerospace Voltage Reference

Use Scenario: Supplies bias current to op-amp input stages requiring stable, low-noise DC offset.

IC Role / Device Role / Timing Role: Functions as low-drift, low-capacitance voltage source in high-Z analog front-ends.

Use Value: Minimal capacitance and ESD immunity prevent signal coupling and latch-up in sensor interfaces.

Use Scenario: Embedded in satellite power conditioning modules where long-term stability is mission-critical.

IC Role / Device Role / Timing Role: Serves as primary voltage standard in radiation-hardened regulation subsystems.

Use Value: Inherent radiation hardness and –65 °C to +175 °C operation ensure functionality in LEO/MEO orbits.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4714A	Same 33 V nominal, but ±1% tolerance option (D suffix); otherwise identical DO-35 package and ratings	Required where tighter initial accuracy needed for calibration-grade references	Select 1N4714A only if system-level tolerance budget demands <±5% Zener error
MMBZ5255B	Surface-mount SOT-23 package; 33 V, ±5%; max I_ZM = 10 mA; lower power (200 mW)	Suitable for space-constrained PCBs but not direct replacement due to different footprint and derating	Choose MMBZ5255B only when board area is constrained and thermal design accommodates lower I_ZM

Compared with 1N4714-1, the 1N4714A offers improved initial accuracy for metrology-critical designs, while the MMBZ5255B trades axial-leaded robustness and 25 mA current capability for compact SMT integration - neither is pin-compatible, and both require layout or thermal redesign.

Availability

1N4714-1 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and precision analog biasing applications requiring stable component supply, long-lifecycle support, and traceable sourcing.

Supply support for 1N4714-1 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

Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and military-grade analog and mixed-signal components.

The 1N4678-1 through 1N4717-1 series was designed specifically for applications demanding stable, low-leakage Zener regulation in harsh environments - including aerospace, defense, and industrial control systems.

FAQ

What is the nominal Zener voltage and test current for the 1N4714-1?

The 1N4714-1 has a nominal Zener voltage of 33 V measured at a Zener test current (I_ZT) of 50 µA. This value is specified at 25 °C ambient and confirmed after 20 seconds of thermal stabilization with 3/8-inch lead length. The 1N4714-1 maintains regulation within ±5% tolerance across its operating range, making it suitable for stable reference applications where moderate accuracy suffices.

Does the 1N4714-1 have a defined maximum reverse leakage current, and at what voltage is it specified?

Yes, the 1N4714-1 specifies a maximum reverse leakage current (I_R) of 0.01 µA at a reverse voltage (V_R) of 25.4 V. This ultra-low leakage ensures minimal loading on high-impedance reference nodes and supports reliable operation in precision analog circuits. The 1N4714-1 achieves this performance using a metallurgically bonded structure that enhances junction integrity and consistency.

What is the maximum Zener current (I_ZM) for the 1N4714-1, and how does it relate to power dissipation?

The 1N4714-1 has a maximum Zener current (I_ZM) of 25.0 mA, derived from its 500 mW power rating and 33 V nominal voltage (P = V × I). At full I_ZM, the device dissipates 0.825 W - exceeding its rating - so actual I_ZM is conservatively limited to maintain ≤0.5 W. The 1N4714-1 datasheet confirms this value is JEDEC-registered and doubled from baseline to reflect its 500 mW capability.

Is the 1N4714-1 available in RoHS-compliant versions, and what plating options are offered?

Yes, RoHS-compliant versions of the 1N4714-1 are available with matte-tin plating for commercial-grade units only (marked with "e3" suffix). Standard versions use tin-lead plating. Both meet solderability requirements per MIL-STD-750 Method 2026. The 1N4714-1's RoHS option retains identical electrical specs and DO-35 mechanical form, enabling drop-in substitution where environmental compliance is mandated.

Can the 1N4714-1 be used in high-temperature environments, and what is its junction temperature limit?

Yes, the 1N4714-1 is rated for junction temperatures from –65 °C to +175 °C, making it suitable for under-hood automotive, downhole oil/gas, and aerospace applications. Its thermal resistance junction-to-lead (R_θJL) is 250 °C/W, allowing predictable temperature rise under load. The 1N4714-1 leverages hermetic glass packaging and metallurgical bonding to sustain parametric stability across this full range without degradation.

1N4714-1 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

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

Packaging:: Bulk

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 33 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: -

Current - Reverse Leakage @ Vr:: 10 nA @ 25 V

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 200 mA

Operating Temperature:: -65°C ~ 175°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AH (DO-35)

1N4714-1 FAQ

1.How can I place an order for 1N4714-1 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4714-1 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 1N4714-1 reliable?

The price and inventory of 1N4714-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4714-1 is usually 5 days.

3.What payment methods are accepted for 1N4714-1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4714-1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4714-1?

1N4714-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4714-1 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 1N4714-1?

For technical support, including 1N4714-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4714-1 requirements.

6.How does Aetrix verify that 1N4714-1 is sourced from the original manufacturer or authorized distributors?

All 1N4714-1 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 1N4714-1 meets industry standards.

7.What is the process for return or replacement of 1N4714-1?

All 1N4714-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4714-1, 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 1N4714-1 part is unused and in its original packaging.

Return procedure for 1N4714-1:

1.Submit a request within 90 days.

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

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