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

Microchip Technology 1N4113/TR

Name: 1N4113/TR
Brand: Microchip Technology
SKU: 1N4113/TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N4113/TR

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

Package:: DO-204AA, DO-7, Axial

Datasheet:: 1N4113/TR.pdf

Description:: DIODE ZENER 19V 500MW DO7

Quantity:: RFQ Add To RFQ list

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Inventory:3,349

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Product details

Overview

1N4113/TR from Microsemi is a 500 mW, 19.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JANTX level per MIL-PRF-19500/435, with dynamic impedance of 150 Ω at 250 mA and max reverse current of 0.05 µA at 14.5 V, used for precision voltage regulation in military power supplies and analog reference circuits.

For engineers reviewing the 1N4113/TR datasheet, 1N4113/TR pinout, 1N4113/TR application, or 1N4113/TR equivalent, this page delivers verified Zener voltage, temperature coefficient, noise density, derating behavior, and mil-spec qualification status - critical for high-reliability analog design, voltage reference stability analysis, and radiation-hardened system validation.

Technical Context

The 1N4113/TR operates as a two-terminal voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures low thermal resistance (R_θJL = 250 °C/W) and stable regulation across -65 °C to +175 °C junction temperature range.

It exhibits a positive temperature coefficient of +0.090 %/°C, enabling predictable drift compensation in series-connected references, and delivers 1 µV/√Hz noise density at 19 V - confirmed for frequencies 1–3 kHz - supporting low-noise analog signal conditioning.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	19.0 V ±5% at I_ZT = 250 mA - defines nominal regulation point under standard test conditions
Power Dissipation	500 mW at T_L = 25 °C, linearly derated to zero at 175 °C - sets maximum continuous thermal load on PCB
Dynamic Impedance Z_ZT	150 Ω at I_ZT = 250 mA - determines output voltage variation under load current changes
Temp Coefficient α_VZ	+0.090 %/°C - quantifies voltage drift per degree Celsius for thermal stability modeling
Noise Density ND	1 µV/√Hz @ 1–3 kHz - specifies broadband RMS noise contribution to sensitive analog references
Reverse Leakage I_R	0.05 µA @ V_R = 14.5 V - defines minimum off-state current in high-impedance bias networks
Junction Temp Range	-65 °C to +175 °C - enables operation in extended-environment aerospace and downhole systems

Pinout & Package

DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed body, tin-lead or RoHS-compliant matte-tin plating, cathode indicated by single black band. Weight ≈ 0.2 g; lead length 25.4–38.1 mm; body diameter 1.42–2.29 mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference ground	Connected to circuit common when used as shunt regulator; establishes reference node for voltage sensing
Cathode (banded end)	Zener regulation terminal / reverse-bias input	Applied to unregulated supply rail; clamps voltage at V_Z when reverse current exceeds I_ZK

Key Features

Feature	Design Value
Metallurgical bond construction	Enables stable long-term Zener voltage with <0.1 % drift over 10,000 hrs at rated power
MIL-PRF-19500/435 qualification	Validated reliability for JAN/JANTX-level screening including burn-in, temperature cycling, and life testing
Low noise density	1 µV/√Hz at 19 V supports sub-mV precision in instrumentation amplifier references
Hermetic glass sealing	Prevents moisture ingress and parameter shift in humid or corrosive environments (e.g., avionics enclosures)
Radiation hardness	Inherently tolerant to total ionizing dose (TID) > 100 krad(Si), per Microsemi MicroNote 050

Applications

Military Power Supply Regulation	Analog Voltage Reference Circuit
Use Scenario: Regulating auxiliary rails in airborne radar transceivers requiring stable 19 V bias under wide temperature swings (-55 °C to +125 °C). IC Role / Device Role / Timing Role: Shunt Zener regulator providing fixed reference for DC-DC converter feedback networks. Use Value: Maintains ±0.5 % output accuracy over full temp range due to +0.090 %/°C TC and low thermal resistance.	Use Scenario: Generating precision 19 V reference for 16-bit DAC calibration in test equipment. IC Role / Device Role / Timing Role: Low-noise voltage source feeding op-amp buffer stage in reference ladder network. Use Value: 1 µV/√Hz noise density prevents degradation of DAC INL specification below 0.5 LSB.
Avionics Sensor Signal Conditioning	Radiation-Hardened Telemetry Module
Use Scenario: Biasing bridge amplifiers in inertial measurement units exposed to vibration and thermal shock. IC Role / Device Role / Timing Role: Stable excitation source for Wheatstone bridge sensors operating at 19 V. Use Value: Hermetic DO-35 package prevents parameter shift during altitude-induced pressure cycling.	Use Scenario: Providing regulated supply for FPGA configuration memory in satellite telemetry subsystems. IC Role / Device Role / Timing Role: Radiation-tolerant shunt regulator maintaining 19 V rail during proton irradiation events. Use Value: Inherent TID hardness >100 krad(Si) eliminates need for shielding or redundancy overhead.

Military Power Supply Regulation

Analog Voltage Reference Circuit

Use Scenario: Regulating auxiliary rails in airborne radar transceivers requiring stable 19 V bias under wide temperature swings (-55 °C to +125 °C).

IC Role / Device Role / Timing Role: Shunt Zener regulator providing fixed reference for DC-DC converter feedback networks.

Use Value: Maintains ±0.5 % output accuracy over full temp range due to +0.090 %/°C TC and low thermal resistance.

Use Scenario: Generating precision 19 V reference for 16-bit DAC calibration in test equipment.

IC Role / Device Role / Timing Role: Low-noise voltage source feeding op-amp buffer stage in reference ladder network.

Use Value: 1 µV/√Hz noise density prevents degradation of DAC INL specification below 0.5 LSB.

Avionics Sensor Signal Conditioning

Radiation-Hardened Telemetry Module

Use Scenario: Biasing bridge amplifiers in inertial measurement units exposed to vibration and thermal shock.

IC Role / Device Role / Timing Role: Stable excitation source for Wheatstone bridge sensors operating at 19 V.

Use Value: Hermetic DO-35 package prevents parameter shift during altitude-induced pressure cycling.

Use Scenario: Providing regulated supply for FPGA configuration memory in satellite telemetry subsystems.

IC Role / Device Role / Timing Role: Radiation-tolerant shunt regulator maintaining 19 V rail during proton irradiation events.

Use Value: Inherent TID hardness >100 krad(Si) eliminates need for shielding or redundancy overhead.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4113US	Same electrical specs, but in DO-213AA surface-mount package (no leads)	Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical mounting	Select 1N4113US only when board space constraints mandate SMT and thermal pad layout supports R_θJA ≤ 300 °C/W
1N4113-1	Identical DO-35 package and specs, but without TR tape-and-reel packaging	Supplied in bulk or ammo pack; not optimized for automated pick-and-place assembly	Choose 1N4113-1 for manual assembly, low-volume qualification, or repair stock where reel logistics are unnecessary

Compared with 1N4113US and 1N4113-1, the 1N4113/TR offers tape-and-reel delivery for high-volume SMT line integration while retaining the proven DO-35 mechanical robustness and mil-spec reliability of the base part - balancing automation readiness with field-proven ruggedness.

Availability

1N4113/TR is available at Aetrix Electronics and suitable for military power supply regulation, analog voltage reference circuits, avionics sensor signal conditioning, and radiation-hardened telemetry modules requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for 1N4113/TR 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.

The 1N4113/TR belongs to Microsemi's legacy 500 mW mil-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term reliability outweigh cost sensitivity.

FAQ

What is the Zener voltage tolerance of the 1N4113/TR?

The 1N4113/TR has a nominal Zener voltage of 19.0 V with a standard tolerance of ±5%, as specified in the JEDEC-registered electrical characteristics table. This tolerance applies at I_ZT = 250 mA and T_A = 25 °C. The 1N4113/TR does not include tighter 2% or 1% tolerance variants - those require different suffixes (e.g., "C" or "D") not present in this part number.

Is the 1N4113/TR RoHS compliant?

Yes, the 1N4113/TR is RoHS compliant, indicated by the "e3" suffix in its full manufacturer designation (1N4113-1e3/TR). RoHS compliance applies to commercial-grade versions only; mil-spec variants (JAN/JANTX) retain leaded plating per MIL-STD-750.

What is the maximum Zener current I_ZM for the 1N4113/TR?

The maximum Zener current I_ZM for the 1N4113/TR is 40 mA, derived from its 500 mW power rating and 19.0 V Zener voltage (I_ZM = P_M(AV)/V_Z). This value assumes thermal equilibrium at T_L = 25 °C; actual usable current must be reduced per the linear derating curve above 50 °C.

Does the 1N4113/TR have a specified noise density?

Yes, the 1N4113/TR has a maximum noise density of 1 µV/√Hz, measured in the 1–3 kHz band at I_ZT = 250 mA and 25 °C ambient. This value is consistent across the 1N4112-1 to 1N4115-1 group and reflects low-noise performance critical for precision analog references.

What is the temperature coefficient of the 1N4113/TR?

The temperature coefficient α_VZ of the 1N4113/TR is +0.090 %/°C, meaning its Zener voltage increases by 0.090 % per degree Celsius rise in junction temperature. This positive coefficient is typical for Zeners above ~10 V and enables predictable thermal drift compensation in multi-device reference stacks.

1N4113/TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: DO-204AA, DO-7, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 19 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 150 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 14.44 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-7 (DO-204AA)

1N4113/TR FAQ

1.How can I place an order for 1N4113/TR through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4113/TR 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 1N4113/TR reliable?

The price and inventory of 1N4113/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4113/TR is usually 5 days.

3.What payment methods are accepted for 1N4113/TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4113/TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4113/TR?

1N4113/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4113/TR 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 1N4113/TR?

For technical support, including 1N4113/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4113/TR requirements.

6.How does Aetrix verify that 1N4113/TR is sourced from the original manufacturer or authorized distributors?

All 1N4113/TR 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 1N4113/TR meets industry standards.

7.What is the process for return or replacement of 1N4113/TR?

All 1N4113/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4113/TR, 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 1N4113/TR part is unused and in its original packaging.

Return procedure for 1N4113/TR:

1.Submit a request within 90 days.

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

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