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

Microchip Technology JANS1N4615D-1/TR

Name: JANS1N4615D-1/TR
Brand: Microchip Technology
SKU: JANS1N4615D-1/TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: JANS1N4615D-1/TR

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: JANS1N4615D-1/TR.pdf

Description:: DIODE ZENER 2V 500MW DO204AH

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Product details

Overview

JANS1N4615D-1/TR from Microsemi is a 2.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers stable voltage regulation at 250 mA test current with 1250 Ω dynamic impedance and -0.075 %/°C temperature coefficient.

For engineers reviewing the JANS1N4615D-1/TR datasheet, JANS1N4615D-1/TR pinout, JANS1N4615D-1/TR application, or JANS1N4615D-1/TR equivalent, key selection factors include its 1% Zener voltage tolerance, JANS-level radiation-hardened qualification, low noise density (1 µV/√Hz), and axial-leaded DO-35 hermetic packaging for extreme-environment stability.

Technical Context

This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures mechanical robustness and long-term parameter stability under thermal cycling and radiation exposure.

Designed for operation across -65 °C to +175 °C junction temperature range, it exhibits linear power derating from 500 mW at 25 °C ambient to zero at 175 °C, and maintains <1 µA reverse leakage at 1.0 V reverse voltage - critical for low-power reference and biasing circuits in avionics and space systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	2.0 V ±1% at 250 mA - enables precise low-voltage reference generation with minimal calibration drift.
Power Dissipation	500 mW at 25 °C - supports continuous regulation in compact, conduction-cooled designs without forced airflow.
Dynamic Impedance Z_ZT	1250 Ω at 250 mA - defines output impedance in regulation region; impacts load regulation error under current variation.
Temp Coefficient α_VZ	-0.075 %/°C - quantifies voltage drift with temperature; enables accurate thermal compensation in precision references.
Noise Density ND	1 µV/√Hz - specifies broadband RMS noise floor; critical for low-noise analog signal conditioning and sensor biasing.
Reverse Leakage I_R	1.0 µA at 1.0 V - determines minimum operating current threshold before regulation onset; affects start-up behavior.
Junction Temp Range	-65 °C to +175 °C - validates suitability for extended-temperature military, satellite, and downhole electronics.

Pinout & Package

DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead or RoHS-compliant matte-tin plating; cathode indicated by single black band; weight ≈ 0.2 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Reference Ground Node	Connected to system ground or lowest potential node; establishes return path for Zener current.
Cathode	Regulated Output Terminal	Banded end; supplies stabilized 2.0 V when reverse-biased; must be held positive relative to anode.

Key Features

Feature	Design Value
MIL-PRF-19500/435 JANS qualification	Validated for Class S (space-level) reliability including radiation hardness per MicroNote 050.
Metallurgical bond construction	Eliminates interfacial delamination risk under thermal shock and vibration - essential for launch environments.
1% Zener voltage tolerance	Reduces need for post-assembly trimming in precision voltage references and analog front-ends.
Low noise density (1 µV/√Hz)	Enables use in ultra-low-noise instrumentation amplifiers and high-resolution ADC reference buffers.
Hermetic DO-35 glass package	Prevents moisture ingress and parameter shift over decades - meets 20+ year mission life requirements.

Applications

Avionics Power Monitoring	Satellite Onboard Computer Reference
Use Scenario: Real-time monitoring of 28 V DC bus voltage in flight control computers using resistive divider + comparator architecture. IC Role / Device Role / Timing Role: Precision 2.0 V shunt reference for comparator threshold setting and ADC calibration. Use Value: 1% tolerance and -0.075 %/°C TC ensure <±2.5 mV drift over -55 °C to +125 °C operational range - meeting DO-160E Section 22 Category A limits.	Use Scenario: Biasing low-noise op-amps in star tracker analog signal chain aboard LEO satellites. IC Role / Device Role / Timing Role: Ultra-low-noise 2.0 V reference source for photodiode transimpedance amplifier feedback network. Use Value: 1 µV/√Hz noise density prevents degradation of sub-picoampere photocurrent resolution - critical for arc-second attitude determination.
Nuclear Reactor Control Instrumentation	Tactical Radios RF Front-End Biasing
Use Scenario: Providing stable bias voltage to radiation-tolerant op-amps in neutron flux measurement channels. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference ensuring consistent gain calibration despite total ionizing dose >100 krad(Si). Use Value: JANS qualification and inherent radiation hardness eliminate need for shielding or redundancy - reducing SWaP-C by 35% vs. commercial alternatives.	Use Scenario: Setting gate bias for GaN HEMT drivers in manpack radio PA stages operating across -40 °C to +85 °C. IC Role / Device Role / Timing Role: Temperature-stable 2.0 V reference for adaptive bias control loop. Use Value: -0.075 %/°C TC enables <±15 mV bias shift over full temperature range - maintaining PA efficiency within 2% of nominal across environmental extremes.

Avionics Power Monitoring

Satellite Onboard Computer Reference

Use Scenario: Real-time monitoring of 28 V DC bus voltage in flight control computers using resistive divider + comparator architecture.

IC Role / Device Role / Timing Role: Precision 2.0 V shunt reference for comparator threshold setting and ADC calibration.

Use Value: 1% tolerance and -0.075 %/°C TC ensure <±2.5 mV drift over -55 °C to +125 °C operational range - meeting DO-160E Section 22 Category A limits.

Use Scenario: Biasing low-noise op-amps in star tracker analog signal chain aboard LEO satellites.

IC Role / Device Role / Timing Role: Ultra-low-noise 2.0 V reference source for photodiode transimpedance amplifier feedback network.

Use Value: 1 µV/√Hz noise density prevents degradation of sub-picoampere photocurrent resolution - critical for arc-second attitude determination.

Nuclear Reactor Control Instrumentation

Tactical Radios RF Front-End Biasing

Use Scenario: Providing stable bias voltage to radiation-tolerant op-amps in neutron flux measurement channels.

IC Role / Device Role / Timing Role: Radiation-hardened Zener reference ensuring consistent gain calibration despite total ionizing dose >100 krad(Si).

Use Value: JANS qualification and inherent radiation hardness eliminate need for shielding or redundancy - reducing SWaP-C by 35% vs. commercial alternatives.

Use Scenario: Setting gate bias for GaN HEMT drivers in manpack radio PA stages operating across -40 °C to +85 °C.

IC Role / Device Role / Timing Role: Temperature-stable 2.0 V reference for adaptive bias control loop.

Use Value: -0.075 %/°C TC enables <±15 mV bias shift over full temperature range - maintaining PA efficiency within 2% of nominal across environmental extremes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
JANTXV1N4615D-1	Same electrical specs but qualified only to JANTXV level (not JANS); lower radiation hardness assurance.	Lacks full Class S space qualification; unsuitable for missions requiring TID >50 krad(Si) or SEE testing.	Select when cost sensitivity outweighs requirement for full JANS radiation validation.
1N4615D-1/TR	Commercial-grade version; same DO-35 package and 2.0 V/1% specs but no MIL-PRF-19500 qualification.	Not rated for extended temperature or radiation environments; limited to benign industrial use.	Choose only for non-critical prototyping or ground-test fixtures where qualification traceability is not required.

Compared with JANTXV1N4615D-1 and 1N4615D-1/TR, the JANS1N4615D-1/TR uniquely provides verified Class S radiation hardness, full MIL-PRF-19500/435 JANS documentation, and guaranteed -65 °C to +175 °C operation - making it the sole option for flight-critical avionics and space-rated subsystems.

Availability

JANS1N4615D-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite onboard computer reference, nuclear reactor control instrumentation, and tactical radios RF front-end biasing requiring stable component supply across extended temperature and radiation-exposed environments.

Supply support for JANS1N4615D-1/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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, discrete devices, and radiation-hardened components for aerospace, defense, and industrial markets.

The JANS1N4615D-1/TR belongs to Microsemi's legacy MIL-PRF-19500-qualified Zener diode family, engineered specifically for precision voltage reference and regulation in mission-critical systems exposed to extreme temperature, shock, vibration, and ionizing radiation.

FAQ

What is the Zener voltage and tolerance of JANS1N4615D-1/TR?

JANS1N4615D-1/TR has a nominal Zener voltage of 2.0 V with a tight ±1% tolerance at 250 mA test current. This specification is guaranteed under JANS-level qualification per MIL-PRF-19500/435 and validated across the full -65 °C to +175 °C junction temperature range - enabling high-accuracy voltage referencing without post-manufacture trimming.

Is JANS1N4615D-1/TR radiation hardened?

Yes, JANS1N4615D-1/TR is inherently radiation hard per Microsemi MicroNote 050 and qualified to JANS level under MIL-PRF-19500/435, which includes screening for total ionizing dose (TID) and single-event effects (SEE). Its metallurgically bonded DO-35 construction provides proven resilience in space and nuclear environments - a feature not present in commercial or JANTX-grade variants of JANS1N4615D-1/TR.

What package type does JANS1N4615D-1/TR use?

JANS1N4615D-1/TR uses the hermetically sealed axial-leaded DO-35 (DO-204AH) glass package, with cathode identified by a single black band. The package features tin-lead or RoHS-compliant matte-tin plating, weighs approximately 0.2 g, and complies with MIL-STD-750 solderability requirements - ensuring long-term reliability in high-vibration and high-humidity military platforms.

What is the maximum power dissipation of JANS1N4615D-1/TR?

JANS1N4615D-1/TR has a rated average power dissipation of 500 mW at 25 °C lead temperature, with linear derating to zero at 175 °C. Its thermal resistance junction-to-lead is 250 °C/W at 10 mm lead length, allowing direct conduction cooling through PCB traces - a key advantage over surface-mount alternatives in high-reliability power regulation circuits.

Does JANS1N4615D-1/TR have low noise performance?

Yes, JANS1N4615D-1/TR achieves a noise density of 1 µV/√Hz at 250 mA test current - among the lowest in its voltage class. This performance is confirmed per Figure 1 test circuit in the official datasheet and makes JANS1N4615D-1/TR suitable for ultra-low-noise applications such as precision ADC references and photodetector bias networks where signal integrity is paramount.

JANS1N4615D-1/TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 2 V

Tolerance:: ±1%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 1.25 Ohms

Current - Reverse Leakage @ Vr:: 2.5 µA @ 1 V

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

Operating Temperature:: -65°C ~ 175°C (TJ)

Grade:: Military

Qualification:: MIL-PRF-19500/435

Mounting Type:: Through Hole

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

JANS1N4615D-1/TR FAQ

1.How can I place an order for JANS1N4615D-1/TR through Aetrix?

Please submit a Request for Quotation (RFQ) for JANS1N4615D-1/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 JANS1N4615D-1/TR reliable?

The price and inventory of JANS1N4615D-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4615D-1/TR is usually 5 days.

3.What payment methods are accepted for JANS1N4615D-1/TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4615D-1/TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for JANS1N4615D-1/TR?

JANS1N4615D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your JANS1N4615D-1/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 JANS1N4615D-1/TR?

For technical support, including JANS1N4615D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4615D-1/TR requirements.

6.How does Aetrix verify that JANS1N4615D-1/TR is sourced from the original manufacturer or authorized distributors?

All JANS1N4615D-1/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 JANS1N4615D-1/TR meets industry standards.

7.What is the process for return or replacement of JANS1N4615D-1/TR?

All JANS1N4615D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4615D-1/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 JANS1N4615D-1/TR part is unused and in its original packaging.

Return procedure for JANS1N4615D-1/TR:

1.Submit a request within 90 days.

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

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