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

Microchip Technology JANTX1N4614-1

Name: JANTX1N4614-1
Brand: Microchip Technology
SKU: JANTX1N4614-1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: JANTX1N4614-1

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: JANTX1N4614-1.pdf

Description:: DIODE ZENER 1.8V 500MW DO204AH

Quantity:: RFQ Add To RFQ list

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Product details

Overview

JANTX1N4614-1 from Microsemi is a 500 mW, 1.8 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to MIL-PRF-19500/435 JANTX level, with ±5% voltage tolerance, 1200 Ω dynamic impedance at 250 mA test current, and -0.075 %/°C temperature coefficient - used for precision low-voltage reference and regulation in military power supply monitoring circuits.

For engineers reviewing the JANTX1N4614-1 datasheet, JANTX1N4614-1 pinout, JANTX1N4614-1 application, or JANTX1N4614-1 equivalent, key selection criteria include Zener voltage accuracy at low current (IZT = 250 mA), thermal resistance (R_θJL = 250 °C/W), noise density (1 µV/√Hz), junction temperature range (-65 to +175 °C), and MIL-qualified reliability grading.

Technical Context

This device operates as a reverse-biased Zener regulator with metallurgically bonded construction for stable breakdown characteristics. It delivers 1.8 V regulation at I_ZT = 250 mA, exhibits 1200 Ω dynamic impedance (Z_ZT) under that condition, and maintains low noise density (1 µV/√Hz) due to its low-voltage Zener structure.

Its -0.075 %/°C temperature coefficient ensures predictable drift over temperature, and its DO-35 hermetic glass package supports operation from -65 °C to +175 °C junction temperature while meeting MIL-PRF-19500/435 JANTX reliability requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	1.8 V at I_ZT = 250 mA - defines precise low-voltage reference point for biasing or feedback networks.
Zener Impedance Z_ZT	1200 Ω - limits regulation error under load current variation; higher than mid-voltage Zeners but typical for sub-2V devices.
Power Dissipation	500 mW at T_L = 25 °C - sets maximum continuous DC power handling before thermal derating begins at 50 °C.
Noise Density	1 µV/√Hz - enables use in low-noise analog references where broadband voltage stability is critical.
Temp Coefficient α_VZ	-0.075 %/°C - quantifies predictable negative drift; allows accurate compensation in wide-temperature military systems.
Reverse Leakage I_R	3.5 µA at V_R = 1.0 V - confirms tight low-voltage blocking behavior below knee, supporting clean turn-on.
Junction Temp Range	-65 to +175 °C - enables deployment in aerospace, downhole, and high-reliability embedded control environments.

Pinout & Package

DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Hermetically sealed, tin-lead plated leads solderable per MIL-STD-750 method 2026.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Reference Ground Node	Connected to system ground or lowest potential node; forms return path for Zener current.
Cathode	Regulated Output Terminal	Banded end supplies stabilized 1.8 V when reverse-biased; must be held at higher potential than anode.

Key Features

Feature	Design Value
Metallurgical Bond Construction	Ensures long-term parameter stability and resistance to parameter shift under thermal cycling and radiation exposure.
MIL-PRF-19500/435 JANTX Qualification	Validates conformance to military screening, testing, and traceability standards for high-reliability programs.
Low Noise Density (1 µV/√Hz)	Supports precision analog functions such as sensor excitation, ADC reference buffering, and low-drift op-amp biasing.
Hermetic Glass DO-35 Package	Provides moisture immunity and mechanical robustness required for extended field life in harsh environments.
1.8 V Low-Voltage Regulation	Enables direct regulation of modern ultra-low-voltage logic rails and mixed-signal interface circuitry.

Applications

Avionics Power Monitoring	Satellite Sensor Biasing
Use Scenario: Monitoring 28 V aircraft bus voltage via resistive divider into ADC input. IC Role / Device Role / Timing Role: JANTX1N4614-1 serves as precision 1.8 V reference for ADC full-scale calibration and offset nulling. Use Value: Its -0.075 %/°C tempco and 1 µV/√Hz noise ensure <±0.5 LSB error across -55 to +125 °C operational range.	Use Scenario: Providing stable bias voltage to radiation-hardened CMOS image sensor pixel arrays. IC Role / Device Role / Timing Role: JANTX1N4614-1 supplies regulated 1.8 V to analog front-end circuitry requiring minimal supply-induced noise. Use Value: Hermetic DO-35 packaging and inherent radiation hardness per MicroNote 050 support >100 krad(Si) TID tolerance.
Tactical Radio RF Stage Bias	Undersea Sonar Signal Conditioning
Use Scenario: Setting gate bias for GaAs FET amplifiers in HF/VHF transceiver front ends. IC Role / Device Role / Timing Role: JANTX1N4614-1 establishes fixed 1.8 V reverse bias point to stabilize amplifier gain and linearity. Use Value: 1200 Ω Z_ZT and 500 mW rating allow stable operation under pulsed RF load conditions without regulation collapse.	Use Scenario: Calibrating hydrophone preamplifier gain stages in deep-ocean pressure housings. IC Role / Device Role / Timing Role: JANTX1N4614-1 acts as low-drift reference for programmable gain amplifier (PGA) offset trimming. Use Value: -65 to +175 °C junction rating and MIL-qualified screening ensure reliability during repeated thermal cycling in subsea deployments.

Avionics Power Monitoring

Satellite Sensor Biasing

Use Scenario: Monitoring 28 V aircraft bus voltage via resistive divider into ADC input.

IC Role / Device Role / Timing Role: JANTX1N4614-1 serves as precision 1.8 V reference for ADC full-scale calibration and offset nulling.

Use Value: Its -0.075 %/°C tempco and 1 µV/√Hz noise ensure <±0.5 LSB error across -55 to +125 °C operational range.

Use Scenario: Providing stable bias voltage to radiation-hardened CMOS image sensor pixel arrays.

IC Role / Device Role / Timing Role: JANTX1N4614-1 supplies regulated 1.8 V to analog front-end circuitry requiring minimal supply-induced noise.

Use Value: Hermetic DO-35 packaging and inherent radiation hardness per MicroNote 050 support >100 krad(Si) TID tolerance.

Tactical Radio RF Stage Bias

Undersea Sonar Signal Conditioning

Use Scenario: Setting gate bias for GaAs FET amplifiers in HF/VHF transceiver front ends.

IC Role / Device Role / Timing Role: JANTX1N4614-1 establishes fixed 1.8 V reverse bias point to stabilize amplifier gain and linearity.

Use Value: 1200 Ω Z_ZT and 500 mW rating allow stable operation under pulsed RF load conditions without regulation collapse.

Use Scenario: Calibrating hydrophone preamplifier gain stages in deep-ocean pressure housings.

IC Role / Device Role / Timing Role: JANTX1N4614-1 acts as low-drift reference for programmable gain amplifier (PGA) offset trimming.

Use Value: -65 to +175 °C junction rating and MIL-qualified screening ensure reliability during repeated thermal cycling in subsea deployments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4614US	Same 1.8 V Zener voltage and DO-35 package, but commercial-grade (non-MIL) with RoHS-compliant matte-tin plating.	Lacks JANTX qualification; not suitable for defense/aerospace BOMs requiring MIL-PRF-19500 compliance.	Select only for cost-sensitive industrial prototypes where MIL screening is unnecessary.
JAN1N4614-1	Identical electrical specs and DO-35 package, but qualified only to JAN level (less stringent screening than JANTX).	Lower reliability assurance; may not meet mission-critical vibration, burn-in, or lot acceptance test requirements.	Acceptable for non-flight subsystems where full JANTX screening adds unnecessary cost.

Compared with 1N4614US and JAN1N4614-1, JANTX1N4614-1 provides the highest reliability assurance through extended environmental stress screening and traceable lot documentation - essential for avionics, missile guidance, and space-qualified electronics where failure modes carry severe consequences.

Availability

JANTX1N4614-1 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite sensor biasing, tactical radio RF stage bias, and undersea sonar signal conditioning requiring stable component supply across extended temperature ranges and high-reliability lifecycles.

Supply support for JANTX1N4614-1 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.

The 1N4614-1 series belongs to Microsemi's legacy MIL-qualified Zener diode product line, engineered specifically for precision voltage reference and regulation in mission-critical systems operating under extreme thermal, radiation, and mechanical stress.

FAQ

What is the Zener voltage tolerance of JANTX1N4614-1?

JANTX1N4614-1 has a nominal Zener voltage of 1.8 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This tolerance applies at I_ZT = 250 mA and T_A = 25 °C, and is consistent across all JANTX-level variants of the 1N4614-1 family.

Is JANTX1N4614-1 RoHS compliant?

No, JANTX1N4614-1 is not RoHS compliant. Per the nomenclature table on page 2 of T4-LDS-0245-2, RoHS compliance (suffix "e3") is available only on commercial-grade versions (e.g., 1N4614-1e3), not on MIL-qualified JANTX-level parts. JANTX1N4614-1 uses traditional tin-lead plating to meet MIL-STD-750 solderability requirements.

What is the maximum Zener current I_ZM for JANTX1N4614-1?

The maximum Zener current I_ZM for JANTX1N4614-1 is 120.0 mA, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This value corresponds to the rated 500 mW power dissipation at 25 °C lead temperature, and assumes linear derating above 50 °C per Figure 2.

Does JANTX1N4614-1 have a specified noise density?

Yes, JANTX1N4614-1 has a maximum noise density of 1 µV/√Hz, as stated in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This value is measured at I_ZT = 250 mA and 25 °C ambient using a 1 kHz–3 kHz bandpass filter, and reflects its suitability for low-noise analog reference applications.

What is the thermal resistance from junction to lead (R_θJL) for JANTX1N4614-1?

The thermal resistance from junction to lead (R_θJL) for JANTX1N4614-1 is 250 °C/W, as specified in the Maximum Ratings table on page 1 of T4-LDS-0245-2. This value is measured with 3/8 inch (10 mm) lead length from the body and is critical for calculating junction temperature rise under actual operating conditions.

JANTX1N4614-1 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):: 1.8 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 1200 Ohms

Current - Reverse Leakage @ Vr:: 3.5 µA @ 1 V

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

Operating Temperature:: -65°C ~ 175°C

Grade:: Military

Qualification:: MIL-PRF-19500/435

Mounting Type:: Through Hole

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

JANTX1N4614-1 FAQ

1.How can I place an order for JANTX1N4614-1 through Aetrix?

Please submit a Request for Quotation (RFQ) for JANTX1N4614-1 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 JANTX1N4614-1 reliable?

The price and inventory of JANTX1N4614-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4614-1 is usually 5 days.

3.What payment methods are accepted for JANTX1N4614-1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4614-1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for JANTX1N4614-1?

JANTX1N4614-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your JANTX1N4614-1 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 JANTX1N4614-1?

For technical support, including JANTX1N4614-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4614-1 requirements.

6.How does Aetrix verify that JANTX1N4614-1 is sourced from the original manufacturer or authorized distributors?

All JANTX1N4614-1 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 JANTX1N4614-1 meets industry standards.

7.What is the process for return or replacement of JANTX1N4614-1?

All JANTX1N4614-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4614-1, 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 JANTX1N4614-1 part is unused and in its original packaging.

Return procedure for JANTX1N4614-1:

1.Submit a request within 90 days.

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

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