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Microchip Technology JAN1N4119D-1
- Part No.:
- JAN1N4119D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4119D-1.pdf
- Description:
- DIODE ZENER 28V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,858
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Product details
Overview
JAN1N4119D-1 from Microsemi is a 500 mW, 28.0 V ±1% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial 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 JAN1N4119D-1 datasheet, JAN1N4119D-1 pinout, JAN1N4119D-1 application, or JAN1N4119D-1 equivalent, key selection criteria include its 28.0 V nominal Zener voltage at 250 mA test current, 200 Ω maximum dynamic impedance, 0.01 µA maximum reverse leakage at 21.3 V, +0.095 %/°C temperature coefficient, and hermetically sealed glass construction for radiation-hardened operation.
Technical Context
This Zener diode operates in reverse breakdown with cathode-banded polarity, delivering stable reference voltage across wide current (250 mA IZT) and temperature (-65 °C to +175 °C) ranges. Its internal metallurgical bond ensures low noise density (1 µV/√Hz typical at low voltages) and minimal capacitance per Figure 3.
Designed for precision regulation in analog signal chains and power supply feedback loops, it maintains tight 1% voltage tolerance and exhibits predictable positive temperature coefficient behavior above 20 V, enabling accurate thermal compensation in critical reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 28.0 V ±1% at 250 mA - provides precise, stable reference for feedback networks requiring <1% accuracy. |
| Power Dissipation | 500 mW @ 25 °C - supports continuous regulation 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 in closed-loop regulators. |
| Reverse Leakage IR | 0.01 µA max at 21.3 V - guarantees negligible error current in high-impedance reference paths. |
| Temp. Coefficient αVZ | +0.095 %/°C - enables predictable thermal drift modeling for compensated voltage references. |
| Noise Density ND | 1 µV/√Hz typical - supports low-noise analog circuits such as precision ADC references and sensor excitation. |
| Junction Temp Range | -65 °C to +175 °C - validated for extended operation in harsh environments including space-grade systems. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by single black band; leads tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to circuit common; must be held at lower potential than cathode for Zener operation. |
| Cathode (banded end) | Regulated output node | Provides stable 28.0 V reference when reverse biased; polarity must be observed to avoid forward conduction. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for spaceflight and nuclear-hardened applications with full lot traceability and screening. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term parameter stability. |
| 1% Zener voltage tolerance | Reduces need for external trimming in precision reference designs, lowering BOM count and calibration cost. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050, suitable for satellite power systems. |
| Low noise density | 1 µV/√Hz enables use in ultra-low-noise analog front-ends without additional filtering or buffering. |
Applications
| Avionics Power Reference | Satellite DC-DC Feedback |
|---|---|
Use Scenario: Providing primary voltage reference for triple-redundant 28 V bus regulators in flight control computers. IC Role / Device Role / Timing Role: Zener diode serving as precision shunt reference in op-amp-based error amplifier feedback loop. Use Value: 1% tolerance and JANS qualification ensure deterministic regulation across -55 °C to +125 °C operational range with no recalibration required. | Use Scenario: Stabilizing output of radiation-tolerant isolated DC-DC converters in LEO satellite power distribution units. IC Role / Device Role / Timing Role: Shunt regulator establishing stable 28 V reference for PWM controller feedback network. Use Value: Inherent radiation hardness and 175 °C junction rating support uninterrupted operation during solar particle events and thermal soak cycles. |
| Ground-Based Radar Bias Supply | Nuclear Instrumentation Channel |
Use Scenario: Generating calibrated bias voltage for GaN RF power amplifier gate drivers in phased-array radar transceivers. IC Role / Device Role / Timing Role: Precision Zener reference setting fixed gate voltage offset in high-speed switching stages. Use Value: Low 200 Ω dynamic impedance minimizes voltage droop during fast RF envelope transients, preserving amplifier linearity. | Use Scenario: Establishing stable reference for pulse-height analyzers in reactor monitoring systems exposed to neutron flux. IC Role / Device Role / Timing Role: Radiation-hardened shunt reference maintaining accuracy in analog-to-digital conversion front-end. Use Value: Confirmed TID tolerance per MicroNote 050 and 0.01 µA leakage enable sub-1 LSB error stability over 20-year deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4119D-1 | Same electrical specs but qualified to JANTXV level (enhanced screening vs. JANS); higher cost, longer lead time. | Preferred for non-space military programs where full JANS testing is not mandated but extended reliability is required. | Select when program requirements specify JANTXV-level screening but do not require full JANS radiation assurance. |
| 1N4119UR-1 | Surface-mount DO-213AA package; identical Zener parameters but different thermal resistance (RθJA = 350 °C/W vs. 300 °C/W). | Used in automated SMT production lines where axial lead insertion is incompatible with assembly process. | Choose for PCB space-constrained or high-volume automated manufacturing where DO-35 axial mounting is impractical. |
Compared with JAN1N4119D-1, JANTXV1N4119D-1 offers tighter screening without electrical change, while 1N4119UR-1 trades axial mounting for SMT compatibility at the cost of reduced thermal performance-selection depends on qualification tier and assembly method.
Availability
JAN1N4119D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC feedback, and nuclear instrumentation channel applications requiring stable component supply with full MIL-spec traceability and long-term obsolescence management.
Supply support for JAN1N4119D-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, radiation-hardened, and aerospace-grade components.
JAN1N4119D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for mission-critical voltage regulation in defense, space, and nuclear instrumentation systems.
FAQ
What is the Zener voltage tolerance for JAN1N4119D-1?
JAN1N4119D-1 has a nominal Zener voltage of 28.0 V with ±1% tolerance, as indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tight tolerance eliminates the need for post-assembly calibration in precision reference circuits and is verified under MIL-PRF-19500/435 screening conditions.
Is JAN1N4119D-1 suitable for space applications?
Yes, JAN1N4119D-1 is qualified to JANS level per MIL-PRF-19500/435, including full radiation hardness assurance documented in Microsemi MicroNote 050. Its hermetically sealed DO-35 package and metallurgical bond construction make JAN1N4119D-1 appropriate for LEO and GEO satellite power regulation where TID tolerance and parameter stability are mandatory.
What is the maximum reverse leakage current for JAN1N4119D-1?
The maximum reverse leakage current (IR) for JAN1N4119D-1 is 0.01 µA at 21.3 V, per the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This ultra-low leakage ensures minimal error contribution in high-impedance reference divider networks used with JAN1N4119D-1 in precision analog systems.
Does JAN1N4119D-1 have a specified noise density?
Yes, JAN1N4119D-1 exhibits a typical noise density of 1 µV/√Hz, consistent with the "<1 µV/√Hz at lower voltages" specification in the FEATURES section. This value is measured using a 1 kHz–3 kHz bandpass filter at 25 °C ambient and 250 mA Zener test current, making JAN1N4119D-1 suitable for low-noise reference applications.
What is the thermal resistance junction-to-ambient for JAN1N4119D-1?
JAN1N4119D-1 has a thermal resistance junction-to-ambient (RθJA) of 300 °C/W when mounted on an FR4 PCB with 4 mm² copper pads and 1 mm track width, as specified in the MAXIMUM RATINGS table. This value governs safe power derating and must be applied when operating above 25 °C ambient temperature per the curve in Figure 2.
JAN1N4119D-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):
- 28 V
- Tolerance:
- ±1%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 21.3 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)
JAN1N4119D-1 FAQ
1.How can I place an order for JAN1N4119D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4119D-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 JAN1N4119D-1 reliable?
The price and inventory of JAN1N4119D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4119D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4119D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4119D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4119D-1?
JAN1N4119D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4119D-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 JAN1N4119D-1?
For technical support, including JAN1N4119D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4119D-1 requirements.
6.How does Aetrix verify that JAN1N4119D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4119D-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 JAN1N4119D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4119D-1?
All JAN1N4119D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4119D-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 JAN1N4119D-1 part is unused and in its original packaging.
Return procedure for JAN1N4119D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4119D-1 Tags
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