My Inquiry
My Account
Microchip Technology JANTX1N4618D-1
- Part No.:
- JANTX1N4618D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4618D-1.pdf
- Description:
- DIODE ZENER 2.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,705
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N4618D-1 from Microsemi is a 500 mW, 2.7 V Zener voltage regulator diode in DO-35 glass package, qualified to JANTX level per MIL-PRF-19500/435, with 1% voltage tolerance, 1500 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 JANTX1N4618D-1 datasheet, JANTX1N4618D-1 pinout, JANTX1N4618D-1 application, or JANTX1N4618D-1 equivalent, key selection criteria include Zener voltage accuracy (±1%), low noise density (1 µV/√Hz), hermetic DO-35 packaging, MIL-qualified reliability, and thermal derating behavior from 500 mW at 25 °C to zero at 175 °C.
Technical Context
This device operates as a reverse-biased Zener regulator with metallurgically bonded junction, enabling stable voltage reference under varying load and temperature conditions. It exhibits a nominal Zener voltage of 2.7 V at 250 mA test current, with dynamic impedance of 1500 Ω and temperature coefficient of -0.075 %/°C - indicating predictable negative drift over temperature.
The DO-35 axial-glass package provides hermetic sealing and supports operation across -65 °C to +175 °C junction temperature range. Its thermal resistance junction-to-lead is 250 °C/W at 10 mm lead length, and it delivers ≤0.5 µA reverse leakage at 1.0 V reverse bias - critical for low-power standby regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.7 V ±1% at 250 mA - enables precise low-voltage reference for analog sensing and biasing circuits. |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - defines usable thermal envelope on PCB with standard copper pads. |
| Dynamic Impedance ZZT | 1500 Ω at 250 mA - determines output voltage variation under load transients; lower values improve regulation stability. |
| Noise Density | 1 µV/√Hz - ensures minimal added noise in precision reference paths, especially below 3 kHz bandwidth. |
| Temp. Coefficient αVZ | -0.075 %/°C - quantifies predictable negative drift; allows compensation in multi-stage reference designs. |
| Reverse Leakage IR | ≤0.5 µA at 1.0 V - guarantees negligible quiescent current draw in high-impedance bias networks. |
| Junction Temp. Range | -65 °C to +175 °C - supports operation in extended-temperature military, aerospace, and downhole electronics. |
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 or RoHS-compliant matte-tin plating, ~0.2 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; forms low-impedance path for Zener current sink. |
| Cathode | Regulated output node | Banded end supplies stable 2.7 V reference; must be decoupled locally to suppress noise and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for defense/aerospace programs requiring traceable lot data and screening per military standards. |
| Metallurgical bond construction | Enhances long-term parameter stability and reduces parameter shift under thermal cycling and high-reliability stress. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision reference circuits; improves yield in calibrated instrumentation. |
| Low noise density (1 µV/√Hz) | Minimizes contribution to total integrated noise in ADC reference buffers and low-noise amplifier bias networks. |
| Hermetic DO-35 glass package | Prevents moisture ingress and parameter drift in humid or corrosive environments; supports 175 °C max junction temp. |
Applications
| Avionics Power Monitoring | Military Radio Bias Reference |
|---|---|
Use Scenario: Regulating and monitoring 3.3 V rail in airborne transceiver power management modules. IC Role / Device Role / Timing Role: Zener reference diode providing stable 2.7 V reference for comparator threshold and ADC calibration. Use Value: Enables accurate undervoltage lockout detection within ±1% tolerance, meeting DO-160E environmental compliance. | Use Scenario: Generating precision bias voltage for RF front-end LNA stages in handheld tactical radios. IC Role / Device Role / Timing Role: Low-noise Zener regulator supplying clean 2.7 V bias to GaAs FET amplifiers. Use Value: 1 µV/√Hz noise density prevents degradation of receiver NF; hermetic package withstands vibration and humidity. |
| Satellite Payload Telemetry | Downhole Sensor Conditioning |
Use Scenario: Providing reference voltage for radiation-hardened telemetry ADCs in LEO satellite subsystems. IC Role / Device Role / Timing Role: Radiation-tolerant Zener reference supporting 12-bit telemetry conversion over -40 °C to +85 °C. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy in low-dose orbits. | Use Scenario: Stabilizing excitation voltage for piezoresistive pressure sensors in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-temp Zener regulator operating continuously at 150 °C junction temperature in sealed probe housings. Use Value: Stable -0.075 %/°C TC enables accurate sensor linearization without active compensation circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N4618D-1 | Same electrical specs but qualified only to JAN level (lower screening vs. JANTX); no burn-in or life test requirements. | Acceptable for non-critical commercial/military prototypes where full JANTX screening is not mandated. | Select when cost sensitivity outweighs requirement for extended reliability testing and lot traceability. |
| 1N4618UR-1 | Same Zener voltage and tolerance, but in DO-213AA surface-mount package; lacks MIL qualification. | Suitable for space-constrained commercial PCBs where reflow compatibility and automated assembly are priorities. | Choose for high-volume production where DO-35 axial leads are incompatible with SMT line or board layout. |
Compared with JAN1N4618D-1 and 1N4618UR-1, JANTX1N4618D-1 delivers verified JANTX-level screening including burn-in and life testing - essential for deployed systems requiring guaranteed parametric stability over 10+ years.
Availability
JANTX1N4618D-1 is available at Aetrix Electronics and suitable for avionics power monitoring, military radio bias reference, and satellite payload telemetry requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4618D-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) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and aerospace-grade components.
The 1N46xx-1 series was designed specifically for precision voltage regulation in mission-critical defense, space, and industrial systems requiring MIL-qualified Zener references with hermetic packaging and tight tolerances.
FAQ
What is the Zener voltage and tolerance of JANTX1N4618D-1?
JANTX1N4618D-1 has a nominal Zener voltage of 2.7 V with ±1% tolerance at 250 mA test current, as specified in the Microsemi T4-LDS-0245-2 datasheet. This tight tolerance is achieved via post-process binning and supports precision reference applications without external trimming. The 1% tolerance is marked by the 'D' suffix in the part nomenclature and applies across the full qualified temperature range.
Is JANTX1N4618D-1 suitable for high-temperature operation?
Yes, JANTX1N4618D-1 is rated for junction temperatures from -65 °C to +175 °C and is qualified per MIL-PRF-19500/435 at JANTX level. Its thermal resistance junction-to-lead is 250 °C/W, and power dissipation linearly derates from 500 mW at 25 °C to zero at 175 °C - making it suitable for downhole, engine bay, and avionics applications where ambient temperatures exceed 125 °C.
What does the 'JANTX' prefix indicate for JANTX1N4618D-1?
The 'JANTX' prefix in JANTX1N4618D-1 denotes qualification to the JANTX reliability level per MIL-PRF-19500/435, which includes extended screening such as burn-in, life testing, and lot traceability beyond baseline JAN requirements. This level is required for high-integrity military and aerospace deployments where field failure risk must be minimized through rigorous process validation.
Does JANTX1N4618D-1 have low noise performance?
Yes, JANTX1N4618D-1 delivers 1 µV/√Hz noise density at its 250 mA test current, as confirmed in the Microsemi datasheet. This low noise is critical in precision analog signal chains - particularly for ADC reference buffers and sensor bias networks - and results from its metallurgically bonded junction and optimized low-voltage Zener structure.
What package type is used for JANTX1N4618D-1?
JANTX1N4618D-1 uses the DO-35 (DO-204AH) axial-leaded, hermetically sealed glass package. The cathode is marked by a band, and the device is intended for through-hole mounting with 10 mm lead length defining thermal resistance junction-to-lead as 250 °C/W. This package supports MIL-qualified reliability and extended temperature operation up to +175 °C junction temperature.
JANTX1N4618D-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):
- 2.7 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1500 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4618D-1 FAQ
1.How can I place an order for JANTX1N4618D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4618D-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 JANTX1N4618D-1 reliable?
The price and inventory of JANTX1N4618D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4618D-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4618D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4618D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4618D-1?
JANTX1N4618D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4618D-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 JANTX1N4618D-1?
For technical support, including JANTX1N4618D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4618D-1 requirements.
6.How does Aetrix verify that JANTX1N4618D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4618D-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 JANTX1N4618D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4618D-1?
All JANTX1N4618D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4618D-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 JANTX1N4618D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4618D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4618D-1 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
