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Microchip Technology JANTXV1N4123D-1/TR
- Part No.:
- JANTXV1N4123D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4123D-1/TR.pdf
- Description:
- DIODE ZENER 39V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,336
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Product details
Overview
JANTXV1N4123D-1/TR from Microsemi is a 39 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JANTXV level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace power conditioning and precision reference circuits.
For engineers reviewing the JANTXV1N4123D-1/TR datasheet, JANTXV1N4123D-1/TR pinout, JANTXV1N4123D-1/TR application, or JANTXV1N4123D-1/TR equivalent, key selection criteria include its 1% Zener voltage tolerance, 9.8 mA maximum Zener current at rated power, -65 °C to +175 °C operating temperature range, and hermetically sealed DO-35 construction for radiation-hardened environments.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse-bias operation where the banded end is positive relative to the anode. Its metallurgical bond ensures stable junction characteristics under thermal cycling and mechanical stress.
It delivers 39 V regulation at 250 mA test current (IZT), exhibits 200 Ω dynamic impedance (ZZT), and maintains low noise density of 1 µV/√Hz - critical for analog signal chains and precision instrumentation references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39.0 V ±1% at 250 mA - enables precise voltage clamping and reference generation in regulated supplies. |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact, convection-cooled military PCB layouts. |
| Dynamic Impedance | 200 Ω at IZT - ensures minimal output voltage variation under load transients in feedback loops. |
| Max Reverse Current | 10 µA at 29.7 V - guarantees low leakage in high-impedance bias networks and sensor interfaces. |
| Temp Coefficient | +0.095 %/°C - provides predictable, monotonic drift for temperature-compensated reference designs. |
| Noise Density | 1 µV/√Hz - meets low-noise requirements for precision ADC references and analog front-ends. |
| Junction Temp Range | -65 °C to +175 °C - validated for extended operation in avionics, downhole, and space-grade systems. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode identified by single black band; leads tin-lead plated per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; negative terminal during Zener regulation | Connected to system ground or lower-potential node in shunt regulator configurations. |
| Cathode | Current exit terminal in forward bias; positive terminal during Zener regulation | Marked with black band; connected to input rail or reference node requiring stabilized voltage. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for mission-critical applications including flight control and telemetry subsystems. |
| 1% Zener voltage tolerance | Reduces calibration overhead and improves absolute accuracy in closed-loop voltage references. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration in launch environments. |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for LEO missions. |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency coupling in RF bias networks and fast-switching protection circuits. |
Applications
| Aerospace Power Conditioning | Precision Instrumentation Reference |
|---|---|
Use Scenario: Regulating auxiliary 39 V bus in satellite power distribution units under wide temperature swings and radiation exposure. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining stable bias for DC-DC controller ICs and telemetry amplifiers. Use Value: JANTXV1N4123D-1/TR's 1% tolerance and +0.095 %/°C TC enable ±1.5% output stability across -55 °C to +125 °C without external compensation. |
Use Scenario: Providing primary voltage reference for 16-bit SAR ADCs in airborne data acquisition systems. IC Role / Device Role / Timing Role: Low-noise, low-drift analog reference source feeding ADC reference input and DAC feedback paths. Use Value: JANTXV1N4123D-1/TR's 1 µV/√Hz noise density and hermetic DO-35 package prevent signal degradation in high-resolution measurement chains. |
| Avionics Sensor Biasing | Ruggedized Industrial Control |
Use Scenario: Supplying stable excitation voltage to piezoresistive pressure transducers in engine monitoring modules. IC Role / Device Role / Timing Role: Precision current-limited Zener source replacing active regulators to reduce BOM count and failure modes. Use Value: JANTXV1N4123D-1/TR's 200 Ω ZZT and 10 µA IR at 29.7 V ensure consistent sensor bridge bias despite supply ripple and aging effects. |
Use Scenario: Overvoltage clamping on 48 V industrial CAN bus nodes exposed to load dump transients. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting PHY-level interface ICs from ESD and surge events. Use Value: JANTXV1N4123D-1/TR's 500 mW rating and -65 °C to +175 °C range support continuous operation in harsh factory-floor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4123US-1 | Same 39 V, 1% spec but in DO-213AA surface-mount package; no axial leads. | Used where board space is constrained and reflow assembly is required instead of through-hole mounting. | Select 1N4123US-1 when automated SMT production and reduced profile are prioritized over manual repairability. |
| JANS1N4123D-1 | Identical electrical specs and DO-35 package, but qualified to JANS (highest MIL-PRF-19500 reliability level). | Required for nuclear survivability, deep-space missions, or systems demanding zero infant mortality. | Choose JANS1N4123D-1 only when JANS certification documentation and screening reports are contractually mandated. |
Compared with JANTXV1N4123D-1/TR, 1N4123US-1 trades axial lead serviceability for SMT compatibility, while JANS1N4123D-1 adds rigorous burn-in and radiation testing - neither offers pin-to-pin replacement without layout or sourcing changes.
Availability
JANTXV1N4123D-1/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, precision instrumentation reference, and avionics sensor biasing requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4123D-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 analog and mixed-signal components for defense, aerospace, and industrial markets.
JANTXV1N4123D-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in mission-critical systems where long-term parametric stability and environmental resilience are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTXV1N4123D-1/TR?
JANTXV1N4123D-1/TR has a nominal Zener voltage of 39.0 V with a tight ±1% tolerance, indicated by the "D" suffix in its part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, enabling high-accuracy voltage references without post-manufacturing trimming.
Is JANTXV1N4123D-1/TR RoHS compliant?
No, JANTXV1N4123D-1/TR is not RoHS compliant. The "e3" RoHS suffix appears only on commercial-grade versions (e.g., 1N4123D-1e3); JANTXV-level parts retain traditional tin-lead plating to meet MIL-STD-750 solderability and reliability requirements for high-reliability applications.
What does the "TR" suffix mean in JANTXV1N4123D-1/TR?
The "TR" suffix indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JANTXV1N4123D-1/TR is supplied in reels containing standard quantities - consult Aetrix Electronics for minimum order quantities and reel specifications before design-in.
How is the cathode identified on JANTXV1N4123D-1/TR?
The cathode of JANTXV1N4123D-1/TR is marked by a single black band on the glass DO-35 body. During Zener regulation, this banded end must be held at a higher potential than the anode - correct orientation is essential to avoid forward conduction and ensure proper voltage clamping behavior.
What is the maximum Zener current for JANTXV1N4123D-1/TR at full rated power?
At 25 °C ambient and 500 mW dissipation, JANTXV1N4123D-1/TR supports a maximum Zener current of 29.7 mA. This value is derived from VZ × IZM = 39 V × 29.7 mA ≈ 500 mW and is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet.
JANTXV1N4123D-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:
- ±1%
- 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTXV1N4123D-1/TR FAQ
1.How can I place an order for JANTXV1N4123D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4123D-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 JANTXV1N4123D-1/TR reliable?
The price and inventory of JANTXV1N4123D-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 JANTXV1N4123D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4123D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4123D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4123D-1/TR?
JANTXV1N4123D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4123D-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 JANTXV1N4123D-1/TR?
For technical support, including JANTXV1N4123D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4123D-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4123D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4123D-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 JANTXV1N4123D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4123D-1/TR?
All JANTXV1N4123D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4123D-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 JANTXV1N4123D-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4123D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4123D-1/TR Tags
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