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Microchip Technology JANS1N4123C-1/TR
- Part No.:
- JANS1N4123C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4123C-1/TR.pdf
- Description:
- DIODE ZENER 39V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,582
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Product details
Overview
JANS1N4123C-1/TR from Microsemi is a 39 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense voltage regulation. It delivers stable reference voltage across wide current (250 mA test current) and temperature (-65°C to +175°C) ranges with low dynamic impedance (200 Ω) and low noise density (1 µV/√Hz).
For engineers reviewing the JANS1N4123C-1/TR datasheet, JANS1N4123C-1/TR pinout, JANS1N4123C-1/TR application, or JANS1N4123C-1/TR equivalent, key selection criteria include Zener voltage tolerance (2%), radiation hardness, MIL-spec qualification level (JANS), thermal resistance (250 °C/W junction-to-lead), and low-noise performance at 39 V.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures mechanical stability under thermal cycling and shock, critical for space-grade applications.
The JANS1N4123C-1/TR exhibits a positive temperature coefficient of +0.095 %/°C and maintains ≤0.01 µA reverse leakage at 31.2 V, enabling stable biasing in high-temperature analog circuits and reference supplies where long-term drift must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 39.0 V ±2% at 250 mA - provides precise, repeatable reference voltage for calibration and feedback loops |
| Power Dissipation | 500 mW at 25°C - supports robust operation in compact, unheatsinked designs with linear derating to zero at 175°C |
| Dynamic Impedance ZZT | 200 Ω max at 250 mA - ensures minimal output voltage variation under load transients |
| Noise Density | 1 µV/√Hz at 39 V - enables low-noise reference generation in precision instrumentation and ADC reference circuits |
| Reverse Leakage IR | ≤0.01 µA at 31.2 V - guarantees negligible error current in high-impedance bias networks |
| Temp Coefficient αVZ | +0.095 %/°C - allows predictable, monotonic drift compensation in temperature-stable references |
| Junction Temp Range | -65°C to +175°C - supports operation in extreme environments including satellite power systems and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead plating; cathode indicated by colored band; lead length 25 mm standard for thermal resistance measurement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; defines 0 V reference point for Zener regulation |
| Cathode | Regulated output node | Banded end; supplies stable 39 V to load when reverse biased; requires current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Meets full screening, lot acceptance testing, and radiation hardness requirements for spaceflight and nuclear-hardened systems |
| Metallurgical bond construction | Eliminates interfacial delamination risk during thermal cycling, ensuring >10,000 cycles reliability in orbit |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency coupling and phase shift in RF bias networks and fast-switching regulators |
| ESD immunity per MIL-STD-750 Method 1020 | Withstands ≥4 kV HBM without parameter shift-critical for handling in cleanroom assembly lines |
| Hermetic glass sealing | Prevents moisture ingress and corrosion over 20+ year mission lifetimes in vacuum or humid environments |
Applications
| Spacecraft Power Regulation | Aerospace Sensor Biasing |
|---|---|
Use Scenario: Providing stable 39 V reference for DC-DC converter feedback in LEO satellite power management units. IC Role / Device Role / Timing Role: Shunt voltage reference regulating output voltage via feedback loop error correction. Use Value: JANS1N4123C-1/TR's radiation hardness and -65°C to +175°C operation ensure uninterrupted regulation across orbital thermal extremes. | Use Scenario: Biasing high-precision pressure transducers in flight control avionics. IC Role / Device Role / Timing Role: Low-noise voltage reference establishing excitation potential for Wheatstone bridge sensors. Use Value: 1 µV/√Hz noise density prevents signal degradation in microvolt-level sensor outputs. |
| Nuclear Instrumentation | Defense Radar Bias Supply |
Use Scenario: Generating calibrated reference voltages for gamma spectrometer pulse-height analyzers. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining fixed bias on photomultiplier tube dynodes. Use Value: ±2% tolerance and +0.095 %/°C tempco enable traceable energy calibration across reactor containment temperature swings. | Use Scenario: Stabilizing gate bias for GaN RF power amplifiers in active electronically scanned array (AESA) radar modules. IC Role / Device Role / Timing Role: High-reliability Zener clamp protecting amplifier bias circuitry from transient overvoltage. Use Value: JANS-level qualification and 250 °C/W junction-to-lead thermal resistance sustain operation under pulsed radar thermal loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4123C-1 | Same electrical specs but qualified only to JANTXV level; lower screen severity than JANS | Suitable for high-reliability ground-based military systems where full JANS radiation testing is not mandated | Select when cost reduction is prioritized and full space qualification is unnecessary |
| 1N4123C-1/TR | Commercial-grade version; RoHS-compliant (e3 suffix); no MIL-spec screening or radiation data | Applicable in industrial test equipment or non-safety-critical embedded systems requiring same VZ and tolerance | Select for terrestrial commercial designs with budget constraints and no environmental ruggedness requirements |
Compared with JANTXV1N4123C-1 and 1N4123C-1/TR, the JANS1N4123C-1/TR uniquely provides documented total ionizing dose (TID) hardness and single-event effect (SEE) immunity per MIL-PRF-19500/435, making it the only choice for flight-critical subsystems where component failure is not an option.
Availability
JANS1N4123C-1/TR is available at Aetrix Electronics and suitable for spacecraft power regulation, aerospace sensor biasing, nuclear instrumentation, and defense radar bias supply requiring stable component supply across extended product lifecycles.
Supply support for JANS1N4123C-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, radiation-hardened, and aerospace-grade components.
The JANS1N4123C-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for voltage reference stability in mission-critical defense, space, and nuclear applications.
FAQ
What is the Zener voltage tolerance of JANS1N4123C-1/TR?
JANS1N4123C-1/TR has a nominal Zener voltage of 39.0 V with a tight ±2% tolerance, confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tolerance applies at 25°C with 250 mA test current and is maintained across the full JANS qualification screening process.
Is JANS1N4123C-1/TR radiation hardened?
Yes, JANS1N4123C-1/TR is inherently radiation hard per Microsemi MicroNote 050 and qualified to JANS level per MIL-PRF-19500/435, which includes total ionizing dose (TID) testing and single-event effect (SEE) characterization required for spaceflight use.
What is the maximum reverse leakage current for JANS1N4123C-1/TR?
JANS1N4123C-1/TR has a maximum reverse leakage current (IR) of 0.01 µA at 31.2 V, as specified in the Electrical Characteristics table. This ultra-low leakage ensures minimal error current in high-impedance reference circuits.
Does JANS1N4123C-1/TR have a defined temperature coefficient?
Yes, JANS1N4123C-1/TR has a temperature coefficient of +0.095 %/°C, meaning its Zener voltage increases predictably with rising temperature. This value is explicitly listed in the Electrical Characteristics table and supports drift-compensated reference design.
What packaging format does JANS1N4123C-1/TR use?
JANS1N4123C-1/TR uses the DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead plating, as confirmed in the Mechanical and Packaging section of T4-LDS-0245-2. The "TR" suffix indicates tape-and-reel packaging per EIA-296.
JANS1N4123C-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):
- 39 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 29.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4123C-1/TR FAQ
1.How can I place an order for JANS1N4123C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4123C-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 JANS1N4123C-1/TR reliable?
The price and inventory of JANS1N4123C-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 JANS1N4123C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4123C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4123C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4123C-1/TR?
JANS1N4123C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4123C-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 JANS1N4123C-1/TR?
For technical support, including JANS1N4123C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4123C-1/TR requirements.
6.How does Aetrix verify that JANS1N4123C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4123C-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 JANS1N4123C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4123C-1/TR?
All JANS1N4123C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4123C-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 JANS1N4123C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4123C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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