My Inquiry
My Account
Microchip Technology JANTX1N4099D-1
- Part No.:
- JANTX1N4099D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4099D-1.pdf
- Description:
- DIODE ZENER 6.8V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,579
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N4099D-1 from Microsemi is a 1% tolerance, 6.8 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4099D-1 datasheet, JANTX1N4099D-1 pinout, JANTX1N4099D-1 application, or JANTX1N4099D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (200 Ω @ 250 mA), noise density (40 µV/√Hz), temperature coefficient (+0.060 %/°C), and hermetic DO-35 packaging for harsh-environment stability.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 6.8 V at 250 mA test current, exhibiting low dynamic impedance (200 Ω) and tightly controlled temperature coefficient (+0.060 %/°C), enabling stable reference performance across military temperature ranges (–65 °C to +175 °C).
Its metallurgical bond construction ensures low noise density (40 µV/√Hz), minimal capacitance (typ. <2 pF), and inherent radiation hardness per Microsemi MicroNote 050 - features critical for analog signal conditioning and voltage reference circuits in avionics and space-grade systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.8 V ±1% @ 250 mA - provides precise, repeatable regulation point for reference and protection circuits |
| Power Dissipation | 500 mW @ 25 °C - supports stable operation in compact, convection-cooled designs |
| Dynamic Impedance ZZT | 200 Ω @ 250 mA - ensures minimal output voltage shift under load transients |
| Noise Density | 40 µV/√Hz @ 6.8 V - enables low-noise analog references in sensitive instrumentation |
| Temp. Coefficient αVZ | +0.060 %/°C - delivers predictable, monotonic drift over full military temperature range |
| Max Reverse Current IR | 5.2 µA @ 5.2 V - guarantees low leakage in high-impedance bias networks |
| Junction Temp Range | –65 °C to +175 °C - validated for extended operation in extreme environmental conditions |
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 point in shunt regulation path |
| Cathode | Zener regulation node | Connected to input supply; reverse-biased to maintain 6.8 V drop across load |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense programs requiring traceable lot data and screening |
| 1% Zener voltage tolerance | Reduces need for post-calibration trimming in precision reference designs |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Low noise density (40 µV/√Hz) | Supports use in low-level analog front-ends without additional filtering |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter drift in humid or corrosive environments |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Stable 6.8 V reference for analog-to-digital converter biasing in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage reference providing temperature-stable excitation voltage for precision resistive sensors. Use Value: ±1% tolerance and +0.060 %/°C TC ensure ADC full-scale error remains within 0.25% over –55 °C to +125 °C operational range. | Use Scenario: Feedback node regulation in isolated 28 V to ±15 V DC-DC converters aboard LEO satellites. IC Role / Device Role / Timing Role: Precision Zener element in optocoupler-coupled feedback loop for output voltage stabilization. Use Value: Radiation-hardened construction and hermetic seal prevent parametric shift after 50 krad(Si) total ionizing dose exposure. |
| Ground-Based Radar Bias Supply | Tactical Radio RF Amplifier Protection |
Use Scenario: Low-noise bias source for GaAs FET preamplifiers in phased-array radar receivers. IC Role / Device Role / Timing Role: Low-noise shunt regulator supplying clean 6.8 V to RF amplifier gate bias networks. Use Value: 40 µV/√Hz noise density avoids degradation of receiver noise figure below –165 dBm/Hz. | Use Scenario: Overvoltage clamp protecting RF power amplifier stages during antenna mismatch events. IC Role / Device Role / Timing Role: Fast-response Zener clamp absorbing transient energy above 6.8 V threshold. Use Value: 200 Ω dynamic impedance limits clamping voltage overshoot to <7.5 V under 100 mA surge pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4099US-1 | Same electrical specs, but in surface-mount DO-213AA package | Requires PCB rework for SMT assembly; no axial lead option | Select when automated placement and board space reduction are priorities over through-hole serviceability |
| JANTXV1N4099D-1 | Identical specs with enhanced screening (JANTXV level per MIL-PRF-19500/435) | Required for Class H/V systems where burn-in and life test data are mandated | Select when program requirements specify JANTXV-level qualification for mission-critical subsystems |
Compared with JANTX1N4099D-1, the 1N4099US-1 offers identical regulation performance in a smaller footprint but eliminates field-replaceability, while JANTXV1N4099D-1 adds rigorous screening for longer life and lower infant mortality - both require explicit validation against the same circuit's thermal and mechanical stress profile.
Availability
JANTX1N4099D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC converter feedback, and ground-based radar bias supply applications requiring stable component supply across long production lifecycles.
Supply support for JANTX1N4099D-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANTX1N4099D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTX1N4099D-1?
JANTX1N4099D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number per MIL-PRF-19500/435 nomenclature. This means its measured VZ at 250 mA falls within 6.732 V to 6.868 V at 25 °C. The tighter tolerance reduces calibration burden in precision analog circuits and improves consistency across production lots of JANTX1N4099D-1 units.
Is JANTX1N4099D-1 RoHS compliant?
No, JANTX1N4099D-1 is not RoHS compliant. Per the manufacturer's documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade variants, not for JAN/JANTX-qualified parts. JANTX1N4099D-1 uses traditional tin-lead plating on leads and meets MIL-STD-750 solderability requirements, making it suitable for legacy military and aerospace assemblies where Pb-free compliance is not mandated.
What is the maximum Zener current IZM for JANTX1N4099D-1?
The maximum Zener current IZM for JANTX1N4099D-1 is 76.0 mA, calculated from its 500 mW power rating and 6.8 V nominal Zener voltage (P = V × I → I = 0.5 W / 6.8 V ≈ 73.5 mA, rounded to 76.0 mA per datasheet Table). This value assumes operation at 25 °C ambient with proper lead heat sinking; derating applies linearly above 50 °C case temperature, reaching zero at 175 °C.
Does JANTX1N4099D-1 have radiation hardness specifications?
Yes, JANTX1N4099D-1 exhibits inherent radiation hardness as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction and hermetic DO-35 package provide resistance to total ionizing dose (TID) effects, supporting operation in radiation environments typical of low-earth orbit (LEO) and tactical platforms. Specific TID thresholds (e.g., 50 krad(Si)) are verified per customer test reports, not guaranteed in standard datasheet limits for JANTX1N4099D-1.
How is polarity marked on JANTX1N4099D-1?
JANTX1N4099D-1 uses a cathode band marking: a single opaque band near one end of the DO-35 glass body identifies the cathode terminal. For correct Zener operation, this banded end must be connected to the higher-potential node (e.g., unregulated input rail), while the unbanded (anode) end connects to ground or the regulated output node. Polarity reversal will forward-bias the diode and prevent regulation.
JANTX1N4099D-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5.2 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)
JANTX1N4099D-1 FAQ
1.How can I place an order for JANTX1N4099D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4099D-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 JANTX1N4099D-1 reliable?
The price and inventory of JANTX1N4099D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4099D-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4099D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4099D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4099D-1?
JANTX1N4099D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4099D-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 JANTX1N4099D-1?
For technical support, including JANTX1N4099D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4099D-1 requirements.
6.How does Aetrix verify that JANTX1N4099D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4099D-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 JANTX1N4099D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4099D-1?
All JANTX1N4099D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4099D-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 JANTX1N4099D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4099D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4099D-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…
