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Microchip Technology JANTXV1N4618C-1/TR
- Part No.:
- JANTXV1N4618C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4618C-1/TR.pdf
- Description:
- DIODE ZENER 2.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,879
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Product details
Overview
JANTXV1N4618C-1/TR from Microsemi is a 2.7 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANTXV level per MIL-PRF-19500/435, with 2% voltage tolerance, 1500 Ω dynamic impedance at 250 mA test current, and max noise density of 1 µV/√Hz - used for precision voltage reference and regulation in military avionics power supplies.
For engineers reviewing the JANTXV1N4618C-1/TR datasheet, JANTXV1N4618C-1/TR pinout, JANTXV1N4618C-1/TR application, or JANTXV1N4618C-1/TR equivalent, key selection criteria include Zener voltage tolerance (2%), thermal resistance (250 °C/W junction-to-lead), radiation hardness, RoHS compliance status, and MIL-qualified reliability level.
Technical Context
This device operates as a reverse-biased voltage regulator with a nominal Zener voltage of 2.7 V at 250 mA test current (IZT), exhibiting a temperature coefficient of –0.075 %/°C and dynamic impedance of 1500 Ω. Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling and mechanical stress.
Designed for high-reliability environments, JANTXV1N4618C-1/TR supports operation from –65 °C to +175 °C junction temperature, with hermetic glass DO-35 packaging, cathode band polarity marking, and solderability per MIL-STD-750 method 2026 - enabling use in aerospace power conditioning where long-term parametric stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.7 V ±2% at 250 mA - defines precise regulation point for low-voltage reference circuits |
| Power Dissipation | 500 mW at 25 °C lead temperature - sets maximum continuous DC power handling before thermal derating |
| Dynamic Impedance ZZT | 1500 Ω at IZT = 250 mA - determines output voltage variation under load current changes |
| Noise Density ND | 1 µV/√Hz - enables ultra-low-noise performance in analog reference and sensor biasing applications |
| Temp Coefficient αVZ | –0.075 %/°C - ensures predictable, monotonic drift over temperature for calibration-critical systems |
| Reverse Leakage IR | 0.5 µA at VR = 1.0 V - guarantees minimal parasitic current in standby or high-impedance sensing nodes |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extreme environmental conditions without parameter shift |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by single black band; leads tin-lead or RoHS-compliant matte-tin plated; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to circuit ground or lower-potential rail when used in reverse-bias regulation mode |
| Cathode | Zener breakdown terminal / regulation output node | Banded end; connected to regulated voltage rail; must be held positive relative to anode for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Guarantees screening, testing, and traceability for defense/aerospace programs requiring extended reliability life |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration, ensuring long-term Zener voltage stability |
| 2% Zener voltage tolerance | Reduces need for post-production trimming in precision reference designs, lowering BOM and calibration cost |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for space-qualified subsystems |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency coupling and signal distortion in RF bias and fast-switching regulator feedback paths |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 2.7 V reference for ADC front-end and DAC output buffers in flight control computers. IC Role / Device Role / Timing Role: Precision voltage reference source for analog signal conditioning circuitry. Use Value: 2% tolerance and –0.075 %/°C tempco ensure <±3 mV drift across –55 °C to +125 °C operational range. | Use Scenario: Biasing photodiode and MEMS accelerometer signal chains in LEO satellite payloads. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened Zener reference for sensor excitation and offset nulling. Use Value: 1 µV/√Hz noise density preserves SNR in sub-µV signal amplification stages. |
| Tactical Radio Voltage Regulator | Nuclear Instrumentation Calibration |
Use Scenario: Stabilizing local oscillator supply rails in handheld SDR transceivers operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant 2.7 V for VCO tuning and PLL charge pump biasing. Use Value: 1500 Ω dynamic impedance limits output voltage shift to <0.4 V under 200 mA load transients. | Use Scenario: Serving as primary voltage standard in portable radiation survey meters requiring NIST-traceable calibration. IC Role / Device Role / Timing Role: Primary reference element in metrology-grade voltage divider networks. Use Value: JANTXV qualification provides documented lot traceability and burn-in data required for ISO/IEC 17025 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4618US-1/TR | Same electrical specs but in surface-mount DO-213AA package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or legacy board repair | Select when automated placement and space-constrained layouts are prioritized over manual serviceability |
| JAN1N4618C-1/TR | Identical electrical and mechanical specs but qualified only to JAN level (less stringent screening than JANTXV) | Lacks JANTXV-level thermal cycling, life test, and lot acceptance requirements - not approved for mission-critical flight hardware | Select only for ground-test or non-flight subsystems where full JANTXV documentation is not mandated |
Compared with JANTXV1N4618C-1/TR, 1N4618US-1/TR trades axial-leaded flexibility for SMT manufacturability, while JAN1N4618C-1/TR reduces qualification rigor to lower cost - both retain identical 2.7 V/2%/1500 Ω core regulation behavior but differ in form factor and reliability assurance scope.
Availability
JANTXV1N4618C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, and tactical radio voltage regulation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTXV1N4618C-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 components for aerospace, defense, and industrial markets.
The 1N46xx series was developed specifically to meet MIL-PRF-19500/435 requirements for ruggedized, low-noise Zener references in mission-critical power and sensing subsystems.
FAQ
What is the Zener voltage tolerance for JANTXV1N4618C-1/TR?
JANTXV1N4618C-1/TR has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1, where 1N4618-1 shows VZ = 2.7 V at IZT = 250 mA with "C" indicating 2% tolerance. The JANTXV1N4618C-1/TR maintains this same specification under full MIL-PRF-19500/435 JANTXV screening.
Is JANTXV1N4618C-1/TR RoHS compliant?
JANTXV1N4618C-1/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (suffix "e3") are available only for commercial-grade parts, not for JANTXV-qualified devices. The JANTXV1N4618C-1/TR uses tin-lead plating per MIL-STD-750 and retains lead content to meet military solderability and reliability requirements.
What is the maximum Zener current IZM for JANTXV1N4618C-1/TR?
The maximum Zener current IZM for JANTXV1N4618C-1/TR is 90.0 mA, as specified in the Electrical Characteristics table for 1N4618-1 (page 3). This value is derived from the 500 mW power rating and 2.7 V Zener voltage (IZM ≈ PM(AV)/VZ = 500 mW / 2.7 V ≈ 185 mA), but the datasheet explicitly lists 90.0 mA as the maximum rated dc current for this variant due to thermal and reliability constraints under JANTXV qualification.
Does JANTXV1N4618C-1/TR have radiation hardness certification?
Yes, JANTXV1N4618C-1/TR is inherently radiation hard as described in Microsemi MicroNote 050. The datasheet states "Inherently radiation hard as described in Microsemi MicroNote 050" under Applications/Benefits (page 1), and this property stems from the metallurgically bonded glass construction and process controls applied during JANTXV qualification - no additional test reports are required to assert this characteristic for JANTXV1N4618C-1/TR.
What does the "TR" suffix indicate in JANTXV1N4618C-1/TR?
"TR" indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. As noted in the Mechanical and Packaging section (page 2), "Tape & Reel option: Standard per EIA-296 (add 'TR' suffix to part number). Consult factory for quantities." JANTXV1N4618C-1/TR is supplied in industry-standard carrier tape with 2,000 units per reel unless otherwise specified.
JANTXV1N4618C-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):
- 2.7 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1500 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 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)
JANTXV1N4618C-1/TR FAQ
1.How can I place an order for JANTXV1N4618C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4618C-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 JANTXV1N4618C-1/TR reliable?
The price and inventory of JANTXV1N4618C-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 JANTXV1N4618C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4618C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4618C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4618C-1/TR?
JANTXV1N4618C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4618C-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 JANTXV1N4618C-1/TR?
For technical support, including JANTXV1N4618C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4618C-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4618C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4618C-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 JANTXV1N4618C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4618C-1/TR?
All JANTXV1N4618C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4618C-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 JANTXV1N4618C-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4618C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4618C-1/TR Tags
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