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Microchip Technology JANTXV1N4123C-1/TR
- Part No.:
- JANTXV1N4123C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4123C-1/TR.pdf
- Description:
- DIODE ZENER 39V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,486
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Product details
Overview
JANTXV1N4123C-1/TR from Microsemi is a 39 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTXV level for high-reliability voltage regulation in aerospace and defense power supplies, reference circuits, and overvoltage protection.
For engineers reviewing the JANTXV1N4123C-1/TR datasheet, JANTXV1N4123C-1/TR pinout, JANTXV1N4123C-1/TR application, or JANTXV1N4123C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), dynamic impedance (200 Ω @ 250 mA), noise density (1 µV/√Hz), temperature coefficient (+0.095 %/°C), and JANTXV-level qualification for extended temperature operation.
Technical Context
This device operates as a precision shunt regulator with a nominal Zener voltage of 39.0 V at 250 mA test current, exhibiting low dynamic impedance (200 Ω) and minimal capacitance (typical <1.5 pF). Its metallurgical bond construction ensures stable breakdown characteristics across -65 °C to +175 °C junction temperature range.
The JANTXV1N4123C-1/TR delivers regulated voltage under broad current variation (IZK to IZM = 29.7 mA to 40 mA) and maintains tight thermal stability via +0.095 %/°C temperature coefficient - critical for analog references in avionics and radiation-hardened systems where drift must remain below ±100 ppm/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 39.0 V ±2% at 250 mA - enables precise 39 V rail regulation with ≤0.78 V total tolerance band. |
| Power Dissipation | 500 mW @ TC = 25 °C - supports continuous regulation in compact axial-leaded layouts with linear derating to zero at 175 °C. |
| Dynamic Impedance ZZT | 200 Ω @ 250 mA - ensures minimal output voltage shift (<7.8 mV) under ±1 mA load transients. |
| Noise Density ND | 1 µV/√Hz - provides ultra-low noise for precision voltage references in ADC/DAC biasing and sensor excitation. |
| Temp Coefficient αVZ | +0.095 %/°C - guarantees <±0.37 V drift over -55 °C to +125 °C operating range, suitable for military-grade references. |
| Reverse Leakage IR | 10 µA @ 31.2 V - ensures negligible quiescent current in standby mode without compromising regulation onset. |
| Junction Temp Range | -65 °C to +175 °C - validated for extreme-environment deployment in satellite power converters and missile guidance electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode band marking; tin-lead plating, solderable per MIL-STD-750 method 2026; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node; conducts forward current up to 200 mA at 1.1 V drop. |
| Cathode | Zener regulation terminal | Banded end; connected to higher-potential node to enable reverse-biased breakdown at 39 V. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial voids and ensures long-term Zener voltage stability under thermal cycling and vibration. |
| JANTXV qualification per MIL-PRF-19500/435 | Validated for high-reliability applications requiring screening to 100% burn-in, lot acceptance testing, and failure analysis traceability. |
| Ultra-low noise density | 1 µV/√Hz enables use in metrology-grade references where RMS noise must stay below 10 µV over 10 Hz–100 kHz bandwidth. |
| Hermetic glass sealing | Prevents moisture ingress and parameter drift in humid or corrosive environments typical of naval and airborne platforms. |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for low-dose-rate space applications without additional shielding. |
Applications
| Aerospace Power Regulation | Avionics Reference Supply |
|---|---|
Use Scenario: Regulating 39 V auxiliary bus in satellite power distribution units under wide temperature swings and radiation exposure. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining stable 39 V rail despite input ripple and load transients. Use Value: JANTXV1N4123C-1/TR's ±2% tolerance and +0.095 %/°C coefficient ensure <±0.8 V total deviation over -55 °C to +125 °C, meeting MIL-STD-704E transient limits. | Use Scenario: Providing precision bias voltage for analog front-end amplifiers in flight control sensor interfaces. IC Role / Device Role / Timing Role: Low-noise Zener reference source for 16-bit ADC reference buffers. Use Value: 1 µV/√Hz noise density prevents quantization error increase beyond LSB in 16-bit systems operating at 100 kSPS. |
| Military Overvoltage Protection | Radiation-Hardened Instrumentation |
Use Scenario: Clamping transient surges on 28 V DC aircraft power lines during lightning-induced spikes. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting >1 A surge current while holding clamped voltage ≤42 V. Use Value: 500 mW rating and 200 Ω dynamic impedance allow JANTXV1N4123C-1/TR to absorb 100 ms transients without parametric shift or catastrophic failure. | Use Scenario: Stabilizing reference voltage in nuclear reactor monitoring sensors exposed to cumulative TID >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-immune voltage reference core in hardened data acquisition modules. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for derating or shielding, reducing BOM count and board area by 30% vs. commercial Zeners. |
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, ±2%, DO-213AA surface-mount package; RθJA = 400 °C/W vs. 300 °C/W for DO-35. | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or legacy chassis mounts. | Select when automated SMT production and board space constraints outweigh manual assembly flexibility. |
| JANS1N4123C-1 | Identical electrical specs but qualified to JANS level (full MIL-PRF-19500/435 screening including radiation testing); higher cost and longer lead time. | Required only for Class S spaceflight hardware or DoD programs mandating JANS-level documentation and traceability. | Select only if program specification explicitly requires JANS qualification - JANTXV suffices for most flight-qualified ground support equipment. |
Compared with JANTXV1N4123C-1/TR, the 1N4123US-1 offers footprint reduction at the expense of thermal performance and assembly compatibility, while JANS1N4123C-1 adds radiation test validation and full lot traceability without improving baseline regulation accuracy or noise - making JANTXV the optimal balance for high-reliability terrestrial and near-space applications.
Availability
JANTXV1N4123C-1/TR is available at Aetrix Electronics and suitable for aerospace power regulation, avionics reference supply, and military overvoltage protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTXV1N4123C-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 aerospace, defense, and industrial markets.
The JANTXV1N4123C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and extended temperature operation are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTXV1N4123C-1/TR?
JANTXV1N4123C-1/TR has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number per Microsemi's nomenclature. This means its nominal 39.0 V Zener voltage falls within 38.22 V to 39.78 V at 250 mA test current and 25 °C ambient, verified per MIL-PRF-19500/435 screening.
Does JANTXV1N4123C-1/TR require heatsinking in standard operation?
No, JANTXV1N4123C-1/TR does not require external heatsinking under standard conditions. With a thermal resistance of 300 °C/W junction-to-ambient (on FR4 with 4 mm² copper pads), it safely dissipates its full 500 mW rating at 25 °C ambient. Derating begins linearly above 50 °C lead temperature, reaching zero dissipation at 175 °C.
Is JANTXV1N4123C-1/TR RoHS compliant?
No, JANTXV1N4123C-1/TR is not RoHS compliant. Per Microsemi's documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts; JANTXV-level devices retain tin-lead plating to meet MIL-STD-750 solderability requirements and ensure proven reliability in high-vibration military environments.
What is the maximum reverse leakage current for JANTXV1N4123C-1/TR?
The maximum reverse leakage current (IR) for JANTXV1N4123C-1/TR is 10 µA at VR = 31.2 V (80% of nominal VZ), measured at 25 °C. This low leakage ensures minimal power loss in standby mode and preserves regulation integrity during light-load conditions in battery-backed systems.
Can JANTXV1N4123C-1/TR be used in surface-mount designs?
No, JANTXV1N4123C-1/TR uses the axial-leaded DO-35 (DO-204AH) package and is not suitable for surface-mount assembly. For SMT equivalents, consider Microsemi's 1N4123US-1 in DO-213AA package - identical electrical specs but different mechanical form factor and thermal characteristics.
JANTXV1N4123C-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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTXV1N4123C-1/TR FAQ
1.How can I place an order for JANTXV1N4123C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4123C-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 JANTXV1N4123C-1/TR reliable?
The price and inventory of JANTXV1N4123C-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 JANTXV1N4123C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4123C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4123C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4123C-1/TR?
JANTXV1N4123C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4123C-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 JANTXV1N4123C-1/TR?
For technical support, including JANTXV1N4123C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4123C-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4123C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4123C-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 JANTXV1N4123C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4123C-1/TR?
All JANTXV1N4123C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4123C-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 JANTXV1N4123C-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4123C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4123C-1/TR Tags
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