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Microchip Technology JANS1N4119D-1/TR
- Part No.:
- JANS1N4119D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4119D-1/TR.pdf
- Description:
- DIODE ZENER 28V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,811
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Product details
Overview
JANS1N4119D-1/TR from Microsemi is a 28.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications, with dynamic impedance of 200 Ω at 250 mA and temperature coefficient of +0.095 %/°C.
For engineers reviewing the JANS1N4119D-1/TR datasheet, JANS1N4119D-1/TR pinout, JANS1N4119D-1/TR application, or JANS1N4119D-1/TR equivalent, this part supports precision voltage regulation in radiation-hardened, high-temperature, and low-noise analog reference circuits where stable Zener voltage under varying load and thermal conditions is critical.
Technical Context
This device operates as a two-terminal reverse-biased voltage regulator with cathode band marking, requiring external current limiting. Its metallurgical bond construction ensures mechanical robustness and long-term stability under thermal cycling and vibration stress typical in military avionics.
It delivers 28.0 V regulation at 250 mA test current (IZT), exhibits 200 Ω dynamic impedance (ZZT), and maintains ≤0.01 µA reverse leakage (IR) at VR = 21.3 V - enabling use in low-power reference and biasing networks where tight voltage accuracy and minimal drift are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0 V ±1% at IZT = 250 mA - defines precise regulation point for reference design |
| Power Dissipation | 500 mW at TC = 25 °C - sets maximum continuous power handling before derating |
| Dynamic Impedance | 200 Ω at IZT - determines output voltage variation under load current changes |
| Temperature Coefficient | +0.095 %/°C - quantifies voltage drift over operating temperature range |
| Reverse Leakage Current | ≤0.01 µA at VR = 21.3 V - ensures minimal error contribution in high-impedance bias networks |
| Noise Density | 1 µV/√Hz (typical) - supports low-noise analog references in signal conditioning paths |
| Junction Temperature Range | –65 °C to +175 °C - enables operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by colored band; leads are tin-lead or RoHS-compliant matte-tin plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node when used in reverse-bias regulation |
| Cathode | Zener regulation terminal / voltage reference output | Marked with band; supplies regulated 28.0 V when reverse-biased with series current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| Internal metallurgical bond | Ensures mechanical integrity and long-term parameter stability under shock/vibration and thermal cycling |
| JANS qualification per MIL-PRF-19500/435 | Validates performance for space-grade and nuclear-hardened systems requiring highest reliability screening |
| 1% Zener voltage tolerance (D suffix) | Reduces calibration overhead in precision reference designs versus standard 5% parts |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for TID-sensitive environments |
| Low noise density (1 µV/√Hz) | Minimizes added noise in analog front-end references and sensor excitation circuits |
Applications
| Aerospace Power Reference | Defense System Bias Network |
|---|---|
Use Scenario: Providing stable 28.0 V reference for ADC/DAC calibration and op-amp biasing in satellite telemetry modules. IC Role / Device Role / Timing Role: Precision voltage reference source for analog signal chain integrity. Use Value: 1% tolerance and +0.095 %/°C TC ensure <±0.3% total voltage error across –55 °C to +125 °C operational range. | Use Scenario: Establishing regulated supply rails for RF front-end LNAs and mixers in radar transceivers. IC Role / Device Role / Timing Role: Low-noise Zener shunt regulator for sensitive RF bias nodes. Use Value: 1 µV/√Hz noise density prevents degradation of receiver noise figure in L-band systems. |
| Nuclear Instrumentation Reference | High-Temperature Industrial Sensor Excitation |
Use Scenario: Generating calibrated excitation voltage for radiation detector photodiode bias in reactor monitoring systems. IC Role / Device Role / Timing Role: Radiation-hardened voltage reference for sensor signal conditioning. Use Value: Inherent TID hardness and –65 °C to +175 °C junction rating support uncooled operation in containment zones. | Use Scenario: Supplying stable bias to RTD or thermocouple interface amplifiers in downhole oil/gas logging tools. IC Role / Device Role / Timing Role: High-temperature-stable shunt regulator for analog sensor front ends. Use Value: Derated 500 mW power handling and 250 °C/W junction-to-lead thermal resistance enable reliable operation at 150 °C ambient. |
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 only to JANTXV level (not JANS); no radiation hardness validation | Lacks full MIL-PRF-19500/435 JANS screening - unsuitable for space or nuclear environments | Select when cost sensitivity outweighs radiation tolerance requirements |
| 1N4119DUR-1 | Same 28.0 V/1% spec in DO-213AA surface-mount package; no axial leads | Requires PCB re-layout for SMT assembly; not interchangeable without footprint change | Select for automated production where board space and assembly efficiency are prioritized |
Compared with JANS1N4119D-1/TR, JANTXV1N4119D-1 offers identical regulation performance but reduced reliability screening, while 1N4119DUR-1 provides identical electrical behavior in a compact surface-mount form - both require explicit evaluation of qualification scope and mechanical fit before substitution.
Availability
JANS1N4119D-1/TR is available at Aetrix Electronics and suitable for aerospace power reference, defense system bias network, and nuclear instrumentation reference requiring stable component supply with full traceability and extended lifecycle support.
Supply support for JANS1N4119D-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, radiation-hardened, and ultra-low-noise analog components for defense, aerospace, and industrial markets.
The JANS1N4119D-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, long-term reliability, and environmental resilience are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANS1N4119D-1/TR?
JANS1N4119D-1/TR has a nominal Zener voltage of 28.0 V with ±1% tolerance, denoted by the "D" suffix in its part number per Microsemi's nomenclature. This tight tolerance is achieved through post-manufacturing screening and is verified at 250 mA test current under thermal equilibrium at 25 °C ambient. The JANS1N4119D-1/TR maintains this specification across its qualified temperature range.
Is JANS1N4119D-1/TR radiation hardened?
Yes, JANS1N4119D-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction and JANS-level qualification per MIL-PRF-19500/435 include testing for total ionizing dose (TID) resilience, making it suitable for space and nuclear applications where single-event effects and cumulative radiation exposure are concerns. The JANS1N4119D-1/TR does not require additional shielding for moderate TID environments.
What is the maximum reverse leakage current for JANS1N4119D-1/TR?
The maximum reverse leakage current (IR) for JANS1N4119D-1/TR is 0.01 µA at VR = 21.3 V, as specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet. This ultra-low leakage ensures minimal error contribution when JANS1N4119D-1/TR is used in high-impedance reference divider networks or precision biasing circuits.
Can JANS1N4119D-1/TR be used in surface-mount designs?
No - JANS1N4119D-1/TR uses the axial-leaded DO-35 (DO-204AH) package and is not compatible with surface-mount assembly. For SMT implementation, the functionally equivalent 1N4119DUR-1 in DO-213AA package is available. Substituting JANS1N4119D-1/TR into an SMT layout would require mechanical redesign, and the JANS1N4119D-1/TR itself cannot be reflowed or hand-soldered as a surface-mount component.
What is the thermal resistance junction-to-lead for JANS1N4119D-1/TR?
The thermal resistance junction-to-lead (RθJL) for JANS1N4119D-1/TR is 250 °C/W when measured with 3/8 inch (10 mm) lead length from the body, per the Maximum Ratings table on page 1 of the datasheet. This value supports thermal design calculations for heatsinking and power derating, especially in high-temperature environments where JANS1N4119D-1/TR operates near its +175 °C junction limit.
JANS1N4119D-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):
- 28 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- 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 (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4119D-1/TR FAQ
1.How can I place an order for JANS1N4119D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4119D-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 JANS1N4119D-1/TR reliable?
The price and inventory of JANS1N4119D-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 JANS1N4119D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4119D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4119D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4119D-1/TR?
JANS1N4119D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4119D-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 JANS1N4119D-1/TR?
For technical support, including JANS1N4119D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4119D-1/TR requirements.
6.How does Aetrix verify that JANS1N4119D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4119D-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 JANS1N4119D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4119D-1/TR?
All JANS1N4119D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4119D-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 JANS1N4119D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4119D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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