My Inquiry
My Account
Microchip Technology JANTX1N4122D-1
- Part No.:
- JANTX1N4122D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4122D-1.pdf
- Description:
- DIODE ZENER 36V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,193
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N4122D-1 from Microsemi is a 36 V, 1% tolerance, 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 JANTX1N4122D-1 datasheet, JANTX1N4122D-1 pinout, JANTX1N4122D-1 application, or JANTX1N4122D-1 equivalent, key selection factors include its 36 V nominal Zener voltage at 250 mA test current, ±1% voltage tolerance (denoted by "D" suffix), 200 Ω dynamic impedance, 0.01 µA maximum reverse leakage at 27.4 V, and radiation-hardened hermetic DO-35 construction.
Technical Context
This device operates as a precision shunt voltage regulator with a specified Zener voltage of 36.0 V at IZT = 250 mA, exhibiting a temperature coefficient of +0.095 %/°C and low noise density (≤1 µV/√Hz below 6.8 V). Its metallurgical bond ensures stable junction characteristics under thermal cycling and mechanical stress.
Rated for continuous operation from −65 °C to +175 °C, it delivers regulated output across wide current ranges (IZK to IZM = 27.4 mA max) while maintaining ≤200 Ω dynamic impedance at 250 mA and ≤0.01 µA reverse current at VR = 27.4 V - critical for low-drift reference designs in avionics and satellite subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 36.0 V at 250 mA test current - defines stable regulation point for biasing and reference circuits |
| Zener Voltage Tolerance | ±1% (D-suffix) - enables tight-set reference accuracy without post-calibration |
| Power Dissipation | 500 mW at 25 °C lead temperature - supports robust thermal margin in conduction-cooled military PCBs |
| Dynamic Impedance | 200 Ω at 250 mA - limits output voltage variation under load transients |
| Reverse Leakage Current | ≤0.01 µA at 27.4 V - ensures minimal error contribution in high-impedance reference nodes |
| Temperature Coefficient | +0.095 %/°C - quantifies voltage drift over operating range; predictable for compensation design |
| Noise Density | ≤1 µV/√Hz - supports low-noise analog references in precision instrumentation |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by band; banded end is positive during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential for regulation |
| Cathode | Zener output terminal | Provides stabilized 36 V output when reverse-biased; marked with color band |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for flight-critical systems including burn-in, life testing, and lot traceability |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration |
| Hermetic glass DO-35 package | Prevents moisture ingress and long-term parameter drift in humid or space environments |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for LEO missions |
| Low capacitance (typ. <4 pF) | Minimizes high-frequency loading on reference nodes and oscillator circuits |
Applications
| Avionics Power Reference | Satellite Voltage Monitor |
|---|---|
Use Scenario: Providing stable 36 V reference for ADC biasing and sensor excitation in airborne navigation computers. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision DC reference independent of input rail fluctuations. Use Value: ±1% tolerance and +0.095 %/°C TC enable <±0.5% total error over −55 °C to +125 °C without trimming. | Use Scenario: Monitoring bus voltage integrity in CubeSat power distribution units using discrete comparator thresholds. IC Role / Device Role / Timing Role: Zener-clamped reference input to window comparators detecting undervoltage/overvoltage faults. Use Value: Hermetic DO-35 package and radiation hardness ensure reliable fault detection across orbital radiation exposure. |
| Defense Radar Bias Supply | Tactical Radio RF Stage Bias |
Use Scenario: Generating clean, low-noise bias for GaN amplifier gate drivers in ground-based radar transmitters. IC Role / Device Role / Timing Role: Low-noise (≤1 µV/√Hz) shunt regulator supplying stable gate voltage to high-speed switching stages. Use Value: Minimal noise injection preserves signal-to-noise ratio in sensitive RF receive paths adjacent to transmit chains. | Use Scenario: Setting precise bias points for RF front-end LNAs and mixers in manpack radios operating in extreme temperature ranges. IC Role / Device Role / Timing Role: Temperature-stable voltage reference enabling consistent gain and linearity across −40 °C to +85 °C. Use Value: JANTX qualification and −65 °C to +175 °C operating range support uninterrupted operation in desert and arctic deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4122US-1 | Same Zener voltage and tolerance, but in surface-mount DO-213AA package | Requires reflow-compatible layout; lacks axial-lead mechanical retention for high-vibration mounts | Select when board space is constrained and automated assembly is prioritized over mechanical ruggedness |
| JANTXV1N4122D-1 | Identical electrical specs but qualified to higher JANTXV reliability level with extended screening | Required for mission-critical subsystems where failure probability must be <10−6 per 1000 hrs | Select when program requirements mandate enhanced screening beyond JANTX, such as for launch vehicle electronics |
Compared with JANTX1N4122D-1, the 1N4122US-1 offers identical regulation performance in a smaller footprint but sacrifices mechanical robustness, while JANTXV1N4122D-1 provides identical form-fit-function with superior reliability validation - making the latter ideal for launch-critical functions and the former for size-constrained commercial-space derivatives.
Availability
JANTX1N4122D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite voltage monitor, and defense radar bias supply requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4122D-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 JANTX1N4122D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in harsh-environment electronics where long-term stability, radiation tolerance, and military-grade screening are mandatory.
FAQ
What is the Zener voltage and test current for JANTX1N4122D-1?
JANTX1N4122D-1 has a nominal Zener voltage of 36.0 V measured at a test current (IZT) of 250 mA. This value is guaranteed within ±1% tolerance across the qualified temperature range and forms the basis for its use as a precision reference in regulated power supplies and analog circuits.
Is JANTX1N4122D-1 RoHS compliant?
No, JANTX1N4122D-1 is not RoHS compliant. The "e3" RoHS designation applies only to commercial-grade versions of this family; JANTX-level devices retain traditional tin-lead plating to meet MIL-STD-750 solderability and reliability requirements for high-reliability applications.
What does the "D" suffix mean in JANTX1N4122D-1?
The "D" suffix in JANTX1N4122D-1 indicates ±1% Zener voltage tolerance at 25 °C, per the part nomenclature defined in Microsemi's T4-LDS-0245-2 specification. This tighter tolerance distinguishes it from standard 5% (blank suffix) or 2% (C suffix) variants in the same family.
What is the maximum reverse leakage current for JANTX1N4122D-1?
JANTX1N4122D-1 has a maximum reverse leakage current (IR) of 0.01 µA at a reverse voltage (VR) of 27.4 V, as specified in the Electrical Characteristics table. This ultra-low leakage supports high-impedance reference node integrity in precision analog and measurement systems.
Can JANTX1N4122D-1 be used in surface-mount designs?
No - JANTX1N4122D-1 uses an axial-leaded DO-35 (DO-204AH) package and is not compatible with surface-mount assembly. For SMT equivalents, consider the 1N4122US-1 in DO-213AA package, which shares identical electrical specifications but requires different PCB layout and reflow processing.
JANTX1N4122D-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):
- 36 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 27.4 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)
JANTX1N4122D-1 FAQ
1.How can I place an order for JANTX1N4122D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4122D-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 JANTX1N4122D-1 reliable?
The price and inventory of JANTX1N4122D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4122D-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4122D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4122D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4122D-1?
JANTX1N4122D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4122D-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 JANTX1N4122D-1?
For technical support, including JANTX1N4122D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4122D-1 requirements.
6.How does Aetrix verify that JANTX1N4122D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4122D-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 JANTX1N4122D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4122D-1?
All JANTX1N4122D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4122D-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 JANTX1N4122D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4122D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4122D-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…
