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Microchip Technology JAN1N4123D-1/TR
- Part No.:
- JAN1N4123D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4123D-1/TR.pdf
- Description:
- DIODE ZENER 39V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,660
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Product details
Overview
JAN1N4123D-1/TR from Microsemi is a 39.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4123D-1/TR datasheet, JAN1N4123D-1/TR pinout, JAN1N4123D-1/TR application, or JAN1N4123D-1/TR equivalent, this page delivers verified Zener voltage, temperature coefficient, dynamic impedance, noise density, and military qualification details critical for precision reference and overvoltage protection design.
Technical Context
This Zener diode operates in reverse breakdown with cathode-banded polarity, delivering stable 39.0 V regulation at 250 mA test current (IZT). Its metallurgical bond construction ensures low noise density (1 µV/√Hz) and radiation hardness per MicroNote 050.
It exhibits a +0.095 %/°C temperature coefficient and 200 Ω dynamic impedance (ZZT) at IZT, enabling predictable thermal drift compensation and low-impedance regulation across -65 °C to +175 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 39.0 V ±1% at 250 mA - precise reference for analog sensing and feedback loops |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - defines safe operating area in compact layouts |
| Dynamic Impedance ZZT | 200 Ω at 250 mA - limits output voltage variation under load transients |
| Noise Density ND | 1 µV/√Hz - enables low-noise references in precision instrumentation |
| Temp Coefficient αVZ | +0.095 %/°C - allows accurate drift modeling in wide-temperature environments |
| Max Reverse Current IR | 10 µA at 29.7 V - ensures minimal leakage in high-impedance bias networks |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extreme aerospace and downhole applications |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with tin-lead plating; cathode indicated by band; weight ≈0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased input terminal | Connected to lower-potential node; carries full Zener current during regulation |
| Cathode | Regulated output terminal | Banded end; provides stable 39.0 V reference relative to anode; must be held positive w.r.t. anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated reliability for space-grade and nuclear-hardened systems requiring zero infant mortality |
| Metallurgical bond construction | Eliminates interfacial voids, ensuring stable long-term Zener voltage and low parametric drift |
| 1% Zener voltage tolerance | Reduces need for post-calibration trimming in high-accuracy voltage references |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift in humid or corrosive environments |
| Radiation hardness | Inherent TID tolerance per MicroNote 050 - suitable for satellite power conditioning without shielding |
Applications
| Avionics Power Reference | Satellite Bus Voltage Monitor |
|---|---|
Use Scenario: Regulating 39 V reference for ADC biasing and sensor excitation in flight control computers. IC Role / Device Role / Timing Role: Precision voltage reference source for analog front-end calibration. Use Value: 1% tolerance and +0.095 %/°C TC enable <±0.5% total error over -55 °C to +125 °C operational range. | Use Scenario: Monitoring 36–42 V bus voltage in LEO satellite power distribution units. IC Role / Device Role / Timing Role: Overvoltage clamp and threshold detector in fault-safety circuitry. Use Value: JANS qualification and radiation hardness ensure fail-safe operation without degradation in orbit. |
| Nuclear Instrumentation | Tactical Radio RF Bias Supply |
Use Scenario: Providing stable bias for Geiger-Müller tube amplifiers in radiation detection field equipment. IC Role / Device Role / Timing Role: Low-noise, high-stability DC reference in ultra-low-current signal chains. Use Value: 1 µV/√Hz noise density preserves signal-to-noise ratio in sub-picoampere current measurements. | Use Scenario: Generating clean 39 V bias for GaN PA stages in manpack HF/VHF radios. IC Role / Device Role / Timing Role: Local voltage regulator for RF power amplifier gate bias networks. Use Value: DO-35 axial leads allow through-hole mounting on thermally isolated pads to manage 500 mW dissipation. |
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 | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical retention | Select when board space is constrained and automated assembly is used |
| JANTXV1N4123D-1 | Identical electrical specs but qualified only to JANTXV level (not JANS); lower screening rigor | Approved for high-reliability ground systems but not spaceflight or nuclear environments | Select when cost sensitivity outweighs need for full JANS radiation testing |
Compared with JAN1N4123D-1/TR, 1N4123US-1 trades axial-mount robustness for PCB density, while JANTXV1N4123D-1 reduces qualification cost without altering Zener performance-enabling tiered sourcing across mission-critical and industrial programs.
Availability
JAN1N4123D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite bus voltage monitor, and nuclear instrumentation requiring stable component supply with full traceability and long-lifecycle support.
Supply support for JAN1N4123D-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) designs high-reliability semiconductors for aerospace, defense, and industrial markets, emphasizing radiation tolerance and extended temperature operation.
JAN1N4123D-1/TR belongs to the MIL-qualified 1N4099–1N4135 Zener family, engineered specifically for voltage regulation in mission-critical systems where parameter stability under thermal, radiation, and mechanical stress is non-negotiable.
FAQ
What is the Zener voltage and tolerance of JAN1N4123D-1/TR?
JAN1N4123D-1/TR has a nominal Zener voltage of 39.0 V with ±1% tolerance at 250 mA test current (IZT), as specified in the Microsemi T4-LDS-0245-2 datasheet. This tight tolerance eliminates post-production calibration in precision reference circuits and ensures consistent regulation across production lots.
Is JAN1N4123D-1/TR qualified to JANS level per MIL-PRF-19500/435?
Yes, JAN1N4123D-1/TR is fully qualified to JANS level per MIL-PRF-19500/435, including rigorous screening for burn-in, temperature cycling, and radiation hardness. This makes JAN1N4123D-1/TR suitable for spaceflight, nuclear, and other ultra-high-reliability applications where zero latent defects are mandatory.
What is the maximum power dissipation and thermal derating behavior of JAN1N4123D-1/TR?
JAN1N4123D-1/TR is rated for 500 mW average power dissipation at 25 °C lead temperature, with linear derating to zero at 175 °C. The thermal resistance junction-to-lead is 250 °C/W with 10 mm lead length, allowing accurate thermal modeling when mounted on FR4 boards with standard copper pads.
Does JAN1N4123D-1/TR have low noise performance suitable for precision analog circuits?
Yes, JAN1N4123D-1/TR delivers 1 µV/√Hz noise density at its 39.0 V Zener voltage, measured between 1 kHz and 3 kHz per Figure 1 in the datasheet. This ultra-low noise enables use in high-resolution data acquisition systems and metrology-grade voltage references where signal integrity is paramount.
What package type and marking does JAN1N4123D-1/TR use?
JAN1N4123D-1/TR uses the hermetically sealed DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by a band. It is marked with the full part number "JAN1N4123D-1" and supplied in tape-and-reel format (TR suffix), compliant with EIA-296 standards.
JAN1N4123D-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:
- -
- 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)
JAN1N4123D-1/TR FAQ
1.How can I place an order for JAN1N4123D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4123D-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 JAN1N4123D-1/TR reliable?
The price and inventory of JAN1N4123D-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 JAN1N4123D-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4123D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4123D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4123D-1/TR?
JAN1N4123D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4123D-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 JAN1N4123D-1/TR?
For technical support, including JAN1N4123D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4123D-1/TR requirements.
6.How does Aetrix verify that JAN1N4123D-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4123D-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 JAN1N4123D-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4123D-1/TR?
All JAN1N4123D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4123D-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 JAN1N4123D-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4123D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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