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Microchip Technology JAN1N4123C-1
- Part No.:
- JAN1N4123C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4123C-1.pdf
- Description:
- DIODE ZENER 39V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,456
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Product details
Overview
JAN1N4123C-1 from Microsemi is a 39 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JAN level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4123C-1 datasheet, JAN1N4123C-1 pinout, JAN1N4123C-1 application, or JAN1N4123C-1 equivalent, this page provides verified Zener voltage, dynamic impedance, temperature coefficient, noise density, and military qualification details essential for precision reference and overvoltage protection design.
Technical Context
This Zener diode operates in reverse breakdown with a nominal 39 V regulation at 250 mA test current (IZT), exhibiting 200 Ω dynamic impedance (ZZT) and +0.095 %/°C temperature coefficient - enabling stable reference generation across -65 °C to +175 °C junction temperature range.
Its metallurgical bond construction ensures low noise density (1 µV/√Hz typical at lower voltages), minimal capacitance, and radiation hardness per Microsemi MicroNote 050, supporting use in low-noise analog references and hardened power conditioning circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 39.0 V ±2% at 250 mA - precise regulation point for mid-range voltage references |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - defines thermal design margin |
| Dynamic Impedance ZZT | 200 Ω at IZT = 250 mA - determines output voltage stability under load variation |
| Temperature Coefficient αVZ | +0.095 %/°C - quantifies drift magnitude for temperature-compensated designs |
| Noise Density ND | 1 µV/√Hz (typical at lower voltages) - critical for low-noise reference applications |
| Max Reverse Current IR | 10 µA at VR = 29.7 V - specifies leakage limit near regulation threshold |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by band; tin-lead plating; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased input terminal | Connected to lower-potential node during Zener operation; carries full regulator current |
| Cathode | Regulated output terminal | Banded end; held at stable 39 V above anode when reverse-biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables low-noise, high-stability regulation without epoxy-induced parameter drift |
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for aerospace and defense programs |
| 2% Zener voltage tolerance | Reduces need for external trimming in precision reference circuits |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter shift in harsh environments |
| Radiation hardness | Validated per Microsemi MicroNote 050 for TID and SEE resilience in space applications |
Applications
| Avionics Power Reference | Missile Guidance Bias Supply |
|---|---|
Use Scenario: Provides stable 39 V reference for ADC biasing and op-amp rail splitting in flight control computers. IC Role / Device Role / Timing Role: Precision voltage reference source for analog signal conditioning circuitry. Use Value: ±2% tolerance and +0.095 %/°C TC enable <±1% total error over -55 °C to +125 °C operating range. | Use Scenario: Regulates auxiliary supply for gyroscope sensor excitation and telemetry amplifier stages. IC Role / Device Role / Timing Role: High-reliability Zener shunt regulator in radiation-prone guidance subsystems. Use Value: Hermetic DO-35 package and MIL-qualified JAN screening ensure operational integrity after 100 krad(Si) exposure. |
| Satellite Payload Voltage Clamp | Tactical Radio RF Stage Bias |
Use Scenario: Clamps transient overvoltage on 36 V bus feeding star tracker electronics. IC Role / Device Role / Timing Role: Overvoltage protection element with fast response and low capacitance. Use Value: 1 µV/√Hz noise density avoids injection into sensitive photodetector front-ends. | Use Scenario: Sets bias point for GaAs FET amplifiers in UHF transceiver final stages. IC Role / Device Role / Timing Role: Stable DC bias generator tolerant of wide ambient temperature swings. Use Value: -65 °C to +175 °C junction rating supports operation in unheated desert or arctic enclosures. |
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 | Higher screening level (JANTXV vs JAN); tighter parametric limits; extended burn-in | Required for mission-critical avionics where failure risk must be minimized beyond JAN requirements | Select when program mandates JANTXV-level reliability documentation and test reports |
| 1N4123C-1 (commercial) | No MIL-PRF-19500 qualification; RoHS-compliant plating only; no radiation data | Suitable for ground-test equipment or non-flight prototypes where cost and lead time dominate | Select for lab validation or non-mission hardware where military screening is unnecessary |
Compared with JAN1N4123C-1, JANTXV1N4123C-1 adds enhanced screening for higher assurance, while 1N4123C-1 trades qualification for lower cost and faster availability - enabling tiered sourcing across development, qualification, and production phases.
Availability
JAN1N4123C-1 is available at Aetrix Electronics and suitable for avionics power reference, missile guidance bias supply, and satellite payload voltage clamp requiring stable component supply under ITAR-controlled logistics and MIL-spec traceability.
Supply support for JAN1N4123C-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 JAN1N4123C-1 belongs to Microsemi's legacy 1N4099–1N4135 family of MIL-qualified Zener diodes, engineered specifically for precision voltage regulation in radiation-tolerant, high-temperature, and long-lifecycle systems.
FAQ
What is the Zener voltage and tolerance of JAN1N4123C-1?
JAN1N4123C-1 has a nominal Zener voltage of 39.0 V with ±2% tolerance at 250 mA test current (IZT). This tolerance is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1, and the "C" suffix in the part number explicitly denotes the 2% grade per the nomenclature guide on page 2.
Is JAN1N4123C-1 qualified to MIL-PRF-19500, and what level?
Yes, JAN1N4123C-1 is qualified to MIL-PRF-19500/435 at the JAN reliability level, as stated in the DESCRIPTION section on page 1 and confirmed in the PART NOMENCLATURE table on page 2, where "JAN" prefix indicates compliance with baseline military screening requirements.
What package type and marking does JAN1N4123C-1 use?
JAN1N4123C-1 uses the DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Polarity is marked with a cathode band; the full part number "JAN1N4123C-1" is laser-marked or etched on the body, per the MECHANICAL and PACKAGING section on page 2.
What is the maximum power dissipation and thermal derating behavior of JAN1N4123C-1?
JAN1N4123C-1 has a rated average power dissipation of 0.5 W at 25 °C, linearly derated to zero at 175 °C. Derating begins at 50 °C for lead temperature or 25 °C for ambient on a typical PCB, as defined in Note 2 under MAXIMUM RATINGS on page 1.
Does JAN1N4123C-1 have radiation hardness data, and where is it documented?
Yes, JAN1N4123C-1 inherits inherent radiation hardness from its metallurgically bonded construction and is documented as "inherently radiation hard" in Microsemi MicroNote 050, referenced in the APPLICATIONS / BENEFITS section on page 1 of the datasheet.
JAN1N4123C-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):
- 39 V
- Tolerance:
- ±2%
- 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)
JAN1N4123C-1 FAQ
1.How can I place an order for JAN1N4123C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4123C-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 JAN1N4123C-1 reliable?
The price and inventory of JAN1N4123C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4123C-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4123C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4123C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4123C-1?
JAN1N4123C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4123C-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 JAN1N4123C-1?
For technical support, including JAN1N4123C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4123C-1 requirements.
6.How does Aetrix verify that JAN1N4123C-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4123C-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 JAN1N4123C-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4123C-1?
All JAN1N4123C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4123C-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 JAN1N4123C-1 part is unused and in its original packaging.
Return procedure for JAN1N4123C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4123C-1 Tags
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