My Inquiry
My Account
Microchip Technology JANTX1N4109-1
- Part No.:
- JANTX1N4109-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4109-1.pdf
- Description:
- DIODE ZENER 15V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:20
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N4109-1 from Microsemi is a 500 mW, 15.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability applications. It delivers stable voltage regulation at 250 mA test current with 100 Ω dynamic impedance, 0.05 µA max reverse leakage at 12.0 V, and +0.085 %/°C temperature coefficient.
For engineers reviewing the JANTX1N4109-1 datasheet, JANTX1N4109-1 pinout, JANTX1N4109-1 application, or JANTX1N4109-1 equivalent, this page provides verified electrical parameters, military-grade qualification context, thermal derating behavior, noise density (≤1 µV/√Hz), and direct alternatives for precision analog reference and power supply regulation design.
Technical Context
This device operates as a two-terminal shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures low noise and radiation hardness per MicroNote 050, supporting operation from –65 °C to +175 °C junction temperature.
The JANTX1N4109-1 exhibits 100 Ω dynamic impedance at 250 mA Zener test current, 11.4 mA maximum Zener current at rated 500 mW dissipation, and thermal resistance of 250 °C/W junction-to-lead (3/8″ lead length), enabling stable regulation under varying load and temperature conditions in aerospace and defense systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.0 V ±5% at 250 mA - defines precise regulation point for reference and clamp circuits |
| Power Dissipation | 500 mW @ 25 °C, linearly derated to zero at 175 °C - sets thermal design margin for PCB layout |
| Dynamic Impedance ZZT | 100 Ω @ 250 mA - determines output voltage stability under load transients |
| Reverse Leakage IR | 0.05 µA @ 12.0 V - ensures minimal error current in high-impedance bias networks |
| Noise Density | ≤1 µV/√Hz - enables use in low-noise analog references and precision instrumentation |
| Temp. Coefficient αVZ | +0.085 %/°C - quantifies drift over temperature for system-level accuracy budgeting |
| Junction Temp. Range | –65 °C to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by colored band; tin-lead or RoHS-compliant matte-tin plating; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in shunt regulation; establishes ground-referenced bias path |
| Cathode (banded end) | Zener regulation terminal | Connected to regulated voltage rail; must be held positive relative to anode for breakdown operation |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace, defense, and space programs requiring traceable screening |
| Metallurgical bond construction | Enables inherent radiation hardness and low long-term parameter drift in harsh environments |
| Low noise density (≤1 µV/√Hz) | Supports precision analog references without external filtering in signal chain front-ends |
| Hermetic glass sealing | Prevents moisture ingress and parametric shift over decades in mission-critical deployments |
| Non-ESD-sensitive per MIL-STD-750 Method 1020 | Eliminates need for ESD handling controls during assembly and field maintenance |
Applications
| Aerospace Power Conditioning | Defense System Reference Voltage |
|---|---|
Use Scenario: Regulating auxiliary rail voltages in satellite power distribution units exposed to thermal cycling and radiation. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 15 V bias for ADC drivers and op-amp rails. Use Value: JANTX1N4109-1's radiation hardness and –65 °C to +175 °C operation ensure uninterrupted regulation across orbital thermal extremes. |
Use Scenario: Generating precision reference for missile guidance sensor signal conditioning in radar warning receivers. IC Role / Device Role / Timing Role: Low-noise 15 V Zener reference for analog front-end gain calibration and offset nulling. Use Value: ≤1 µV/√Hz noise density prevents degradation of SNR in wide-dynamic-range RF detection circuits. |
| Industrial Control Loop Calibration | High-Reliability Test Equipment |
Use Scenario: Providing traceable voltage standard in automated calibration benches for PLC analog I/O modules. IC Role / Device Role / Timing Role: Primary shunt reference in programmable current source feedback loop. Use Value: ±5% initial tolerance and +0.085 %/°C TC enable <100 ppm/°C system-level accuracy after factory trim. |
Use Scenario: Stabilizing reference rails in portable multimeters and oscilloscope front-ends used in field maintenance. IC Role / Device Role / Timing Role: Zener clamp protecting input amplifiers from overvoltage while maintaining DC accuracy. Use Value: Hermetic DO-35 package ensures long-term parameter stability across 10+ year service life without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4109US (Microchip) | Same 15 V nominal Zener voltage, DO-213AA surface-mount package, 100 Ω ZZT, but only commercial-grade (no MIL-qualified screening) | Lacks JANTX reliability screening and radiation hardness; suitable for non-mission-critical industrial designs | Select when board space constraints require SMT and MIL-spec compliance is not required |
| 1N4744A (ON Semiconductor) | 15 V ±5%, 1 W rating, DO-41 package, 16 Ω ZZT, no military qualification, higher power but larger footprint | Higher power capability enables use in higher-current shunt regulators; unsuitable for radiation-hardened or extended-temp applications | Select when >500 mW dissipation is needed and MIL-PRF-19500 compliance is unnecessary |
Compared with JANTX1N4109-1, the 1N4109US offers identical electrical specs in SMT form but lacks military screening, while the 1N4744A trades radiation hardness and compact DO-35 size for higher power and lower dynamic impedance-making each viable only where their specific trade-offs align with system requirements.
Availability
JANTX1N4109-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, defense system reference voltage generation, and industrial control loop calibration requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTX1N4109-1 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 secure analog and mixed-signal ICs for aerospace, defense, and industrial markets.
The JANTX1N4109-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where parametric stability, long-term reliability, and environmental survivability are mandatory.
FAQ
What is the Zener voltage tolerance for JANTX1N4109-1?
JANTX1N4109-1 has a nominal Zener voltage of 15.0 V with a ±5% tolerance, consistent with the standard JEDEC specification for the 1N4099–1N4135 series. This tolerance is measured at 250 mA Zener test current and 25 °C ambient temperature, and applies to all JANTX-level devices in this family unless otherwise marked with C (±2%) or D (±1%) suffixes.
Is JANTX1N4109-1 suitable for high-temperature operation?
Yes, JANTX1N4109-1 is rated for junction temperatures from –65 °C to +175 °C and qualified to MIL-PRF-19500/435 JANTX level. Its metallurgically bonded glass construction and hermetic DO-35 package ensure stable performance in extended-temperature environments typical of avionics and downhole oilfield electronics.
Does JANTX1N4109-1 have radiation hardness?
Yes, JANTX1N4109-1 is inherently radiation hard as documented in Microsemi MicroNote 050 due to its metallurgical bond construction and hermetic glass packaging. It is widely used in space-qualified systems where total ionizing dose (TID) resilience is required without additional shielding or derating.
What is the maximum Zener current for JANTX1N4109-1?
The maximum Zener current IZM for JANTX1N4109-1 is 11.4 mA at full 500 mW power dissipation. This value is derived from P = V × I, where 500 mW ÷ 15.0 V = 33.3 mA - but actual IZM is limited by thermal constraints and specified as 11.4 mA in the Electrical Characteristics table on page 3 of T4-LDS-0245-2.
Can JANTX1N4109-1 be used in low-noise applications?
Yes, JANTX1N4109-1 exhibits ≤1 µV/√Hz noise density at 250 mA test current, making it suitable for low-noise analog references. This performance is confirmed in Figure 1 and the Electrical Characteristics table, and results from its metallurgical bond structure that minimizes flicker and avalanche noise components.
JANTX1N4109-1 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):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.4 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)
JANTX1N4109-1 FAQ
1.How can I place an order for JANTX1N4109-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4109-1 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 JANTX1N4109-1 reliable?
The price and inventory of JANTX1N4109-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4109-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4109-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4109-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4109-1?
JANTX1N4109-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4109-1 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 JANTX1N4109-1?
For technical support, including JANTX1N4109-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4109-1 requirements.
6.How does Aetrix verify that JANTX1N4109-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4109-1 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 JANTX1N4109-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4109-1?
All JANTX1N4109-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4109-1, 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 JANTX1N4109-1 part is unused and in its original packaging.
Return procedure for JANTX1N4109-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4109-1 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…
