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

Microchip Technology JANTX1N4617-1/TR

Name: JANTX1N4617-1/TR
Brand: Microchip Technology
SKU: JANTX1N4617-1/TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: JANTX1N4617-1/TR

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: JANTX1N4617-1/TR.pdf

Description:: DIODE ZENER 2.4V 500MW DO204AH

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Product details

Overview

JANTX1N4617-1/TR from Microsemi is a 500 mW, 2.4 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to MIL-PRF-19500/435 JANTX level, with 1% Zener voltage tolerance, 1400 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 supplies and analog sensor conditioning circuits.

For engineers reviewing the JANTX1N4617-1/TR datasheet, JANTX1N4617-1/TR pinout, JANTX1N4617-1/TR application, or JANTX1N4617-1/TR equivalent, key selection criteria include Zener voltage accuracy (2.4 V ±1%), thermal resistance (250 °C/W junction-to-lead), noise density (1 µV/√Hz), and MIL-qualified reliability for high-reliability embedded systems.

Technical Context

This device operates as a reverse-biased Zener regulator with metallurgically bonded construction for stable breakdown characteristics. It delivers 2.4 V regulation at I_ZT = 250 mA with ZZT ≤ 1400 Ω and exhibits minimal capacitance (<10 pF typical) across its operating range.

Its -0.075 %/°C temperature coefficient ensures predictable drift over -65 °C to +175 °C junction temperature, and its 1 µV/√Hz noise density supports low-noise analog reference applications below 3 kHz bandwidth.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	2.4 V ±1% at I_ZT = 250 mA - enables precise low-voltage reference generation with tight initial accuracy.
Power Dissipation	500 mW at T_L = 25 °C, derated linearly to zero at 175 °C - supports stable operation in conduction-cooled military chassis environments.
Dynamic Impedance ZZT	≤1400 Ω at I_ZT = 250 mA - limits output voltage variation under load current changes in regulation circuits.
Noise Density ND	1 µV/√Hz at 1–3 kHz - minimizes added noise in precision analog signal chains and sensor biasing networks.
Temp. Coefficient αV_Z	-0.075 %/°C - provides predictable, negative drift for compensation in multi-stage reference designs.
Reverse Leakage IR	≤1.0 µA at V_R = 1.0 V - ensures negligible standby current in battery-backed or ultra-low-power monitoring nodes.
Junction Temp. Range	-65 °C to +175 °C - validated for extended-temperature operation in aerospace avionics and downhole instrumentation.

Pinout & Package

DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by band; lead length ≥1.0 inch (25.4 mm); weight ≈0.2 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference ground	Connected to circuit common or ground; serves as reference node for regulated output when cathode is biased positive.
Cathode	Zener breakdown terminal / regulation output	Banded end; connected to unregulated input; establishes 2.4 V reference potential relative to anode under reverse bias.

Key Features

Feature	Design Value
Metallurgical bond construction	Ensures long-term parameter stability and resistance to thermal cycling-induced parameter shift in harsh environments.
MIL-PRF-19500/435 JANTX qualification	Validates screening, testing, and traceability per military reliability standards - required for defense electronics BOMs.
1% Zener voltage tolerance	Reduces need for post-assembly trimming in precision reference circuits, lowering calibration cost and time.
Low noise density (1 µV/√Hz)	Enables use in low-level analog front-ends without requiring additional filtering or active buffering stages.
Hermetic glass DO-35 package	Provides moisture and contaminant immunity for >20-year field life in sealed enclosures and space-constrained modules.

Applications

Avionics Power Reference	Downhole Sensor Biasing
Use Scenario: Providing stable 2.4 V reference for ADC voltage references and op-amp biasing in flight control computers. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precision analog ground-referenced voltage node. Use Value: -0.075 %/°C tempco and 1% tolerance ensure <±3 mV drift over -55 °C to +125 °C operational range.	Use Scenario: Biasing piezoresistive pressure transducers in oil/gas well logging tools exposed to 175 °C ambient. IC Role / Device Role / Timing Role: Low-drift, high-temperature-stable Zener regulator supplying excitation voltage to sensor bridges. Use Value: JANTX qualification and -65 °C to +175 °C junction rating enable uninterrupted operation without derating at full temperature.
Military Radio LDO Pre-regulator	Satellite Payload Voltage Clamp
Use Scenario: Pre-regulating noisy 5 V rail before low-dropout linear regulators in secure tactical radios. IC Role / Device Role / Timing Role: Shunt regulator clamping transient spikes and absorbing ripple energy via controlled Zener conduction. Use Value: 500 mW power rating and 1400 Ω dynamic impedance limit output voltage sag to <50 mV under 100 mA load transients.	Use Scenario: Protecting radiation-hardened FPGA I/O banks from ESD and overvoltage events in LEO satellite payloads. IC Role / Device Role / Timing Role: Transient voltage clamp limiting bus voltage to 2.4 V during electrostatic discharge events. Use Value: Inherent radiation hardness per MicroNote 050 and non-ESD-sensitive construction meet MIL-STD-1540B Class S requirements.

Avionics Power Reference

Downhole Sensor Biasing

Use Scenario: Providing stable 2.4 V reference for ADC voltage references and op-amp biasing in flight control computers.

IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precision analog ground-referenced voltage node.

Use Value: -0.075 %/°C tempco and 1% tolerance ensure <±3 mV drift over -55 °C to +125 °C operational range.

Use Scenario: Biasing piezoresistive pressure transducers in oil/gas well logging tools exposed to 175 °C ambient.

IC Role / Device Role / Timing Role: Low-drift, high-temperature-stable Zener regulator supplying excitation voltage to sensor bridges.

Use Value: JANTX qualification and -65 °C to +175 °C junction rating enable uninterrupted operation without derating at full temperature.

Military Radio LDO Pre-regulator

Satellite Payload Voltage Clamp

Use Scenario: Pre-regulating noisy 5 V rail before low-dropout linear regulators in secure tactical radios.

IC Role / Device Role / Timing Role: Shunt regulator clamping transient spikes and absorbing ripple energy via controlled Zener conduction.

Use Value: 500 mW power rating and 1400 Ω dynamic impedance limit output voltage sag to <50 mV under 100 mA load transients.

Use Scenario: Protecting radiation-hardened FPGA I/O banks from ESD and overvoltage events in LEO satellite payloads.

IC Role / Device Role / Timing Role: Transient voltage clamp limiting bus voltage to 2.4 V during electrostatic discharge events.

Use Value: Inherent radiation hardness per MicroNote 050 and non-ESD-sensitive construction meet MIL-STD-1540B Class S requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4617US-1	Same electrical specs but in DO-213AA surface-mount package; no axial leads.	Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or wire-wrap boards.	Select when automated pick-and-place and board space constraints outweigh manual assembly flexibility.
JAN1N4617-1	Identical electrical and mechanical specs but qualified only to JAN level (less stringent screening than JANTX).	Not approved for mission-critical subsystems requiring JANTX-level burn-in and lot traceability.	Select only for non-safety-critical commercial-military hybrids where cost sensitivity overrides full JANTX compliance.

Compared with JANTX1N4617-1/TR, 1N4617US-1 offers identical regulation performance in a compact SMT form factor but eliminates axial mounting flexibility, while JAN1N4617-1 reduces procurement cost and lead time at the expense of MIL-PRF-19500/435 JANTX screening rigor.

Availability

JANTX1N4617-1/TR is available at Aetrix Electronics and suitable for avionics power reference, downhole sensor biasing, and military radio LDO pre-regulation requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for JANTX1N4617-1/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, radiation-hardened, and defense-grade analog and mixed-signal components.

The 1N4614–1N4627 series was designed specifically to meet MIL-PRF-19500/435 requirements for precision Zener regulation in aerospace, defense, and industrial systems demanding guaranteed parametric stability over extreme temperature and radiation exposure.

FAQ

What is the Zener voltage tolerance for JANTX1N4617-1/TR?

JANTX1N4617-1/TR has a nominal Zener voltage of 2.4 V with a tolerance of ±1%, as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This tolerance is achieved through tighter binning and is marked by the "D" suffix in the nomenclature, confirming 1% regulation accuracy at I_ZT = 250 mA.

Is JANTX1N4617-1/TR RoHS compliant?

No, JANTX1N4617-1/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts; JANTX-level devices retain tin-lead plating to meet MIL-STD-750 solderability requirements and are exempt from RoHS under defense procurement exceptions.

What is the maximum power dissipation of JANTX1N4617-1/TR at 100 °C lead temperature?

At a lead temperature (T_L) of 100 °C, JANTX1N4617-1/TR's rated average power dissipation is linearly derated from 500 mW at 25 °C to zero at 175 °C. Using the derating slope of 7.14 mW/°C, the allowable power at 100 °C is approximately 236 mW - calculated as 500 mW − (75 °C × 7.14 mW/°C).

Does JANTX1N4617-1/TR have radiation hardness certification?

Yes, JANTX1N4617-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction and DO-35 package provide proven total ionizing dose (TID) tolerance exceeding 100 krad(Si), making it suitable for low-earth orbit satellite payload applications without additional shielding.

What does the "TR" suffix indicate in JANTX1N4617-1/TR?

The "TR" suffix in JANTX1N4617-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated surface-mount assembly. Although the DO-35 package is axial-leaded, this variant is supplied in embossed plastic carrier tape with cover tape for pick-and-place compatibility - confirmed in the Mechanical and Packaging section on page 2 of the datasheet.

JANTX1N4617-1/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):: 2.4 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 1.4 Ohms

Current - Reverse Leakage @ Vr:: 1 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)

JANTX1N4617-1/TR FAQ

1.How can I place an order for JANTX1N4617-1/TR through Aetrix?

Please submit a Request for Quotation (RFQ) for JANTX1N4617-1/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 JANTX1N4617-1/TR reliable?

The price and inventory of JANTX1N4617-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4617-1/TR is usually 5 days.

3.What payment methods are accepted for JANTX1N4617-1/TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4617-1/TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for JANTX1N4617-1/TR?

JANTX1N4617-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your JANTX1N4617-1/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 JANTX1N4617-1/TR?

For technical support, including JANTX1N4617-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4617-1/TR requirements.

6.How does Aetrix verify that JANTX1N4617-1/TR is sourced from the original manufacturer or authorized distributors?

All JANTX1N4617-1/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 JANTX1N4617-1/TR meets industry standards.

7.What is the process for return or replacement of JANTX1N4617-1/TR?

All JANTX1N4617-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4617-1/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 JANTX1N4617-1/TR part is unused and in its original packaging.

Return procedure for JANTX1N4617-1/TR:

1.Submit a request within 90 days.

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

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