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Microchip Technology JAN1N4119-1
- Part No.:
- JAN1N4119-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4119-1.pdf
- Description:
- DIODE ZENER 28V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,592
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Product details
Overview
JAN1N4119-1 from Microsemi is a 500 mW, 28.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded 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 JAN1N4119-1 datasheet, JAN1N4119-1 pinout, JAN1N4119-1 application, or JAN1N4119-1 equivalent, this part delivers stable 28 V regulation at 250 mA test current, low 200 Ω dynamic impedance, and <0.01 µA reverse leakage at 21.3 V - critical for precision reference and overvoltage protection circuits requiring military-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown with cathode-banded polarity, relying on metallurgical bonding for thermal stability and radiation hardness. Its 250 mA Zener test current (IZT) and 200 Ω dynamic impedance (ZZT) are specified at 25 °C with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length.
The device exhibits +0.095 %/°C temperature coefficient (αVZ), minimal capacitance (typ. <2 pF at 28 V), and noise density of 1 µV/√Hz - enabling low-noise analog references and stable biasing in RF front-ends and sensor signal chains where voltage drift and EMI sensitivity must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0 V ±5% at 250 mA - sets precise regulation point for 24–30 V rail clamping or reference generation. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports continuous operation in high-temp avionics enclosures. |
| Dynamic Impedance | 200 Ω at IZT = 250 mA - ensures tight voltage regulation under load transients up to ±10% current change. |
| Reverse Leakage | ≤0.01 µA at VR = 21.3 V - prevents parasitic current draw in battery-backed or ultra-low-power standby circuits. |
| Temp Coefficient | +0.095 %/°C - enables predictable, monotonic voltage shift across -65 to +175 °C operating range. |
| Noise Density | 1 µV/√Hz - suitable for low-noise analog references in precision instrumentation and ADC bias networks. |
| Junction Temp Range | -65 to +175 °C - certified for extended-temperature operation in space-grade and missile guidance systems. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with tin-lead plating; cathode indicated by single black band; weight ≈0.2 g; body diameter 1.42–2.29 mm, overall length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal / Zener cathode reference ground | Connected to system ground or lower-potential node; defines reference potential for regulated output. |
| Cathode (banded end) | Zener regulation terminal / reverse-bias input | Applied to positive supply rail; reverse voltage across this terminal triggers breakdown at 28.0 V. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for mission-critical aerospace deployments. |
| Metallurgical bond construction | Enables radiation hardness (per MicroNote 050) and long-term parameter stability under thermal cycling. |
| Low noise density (1 µV/√Hz) | Reduces voltage reference jitter in PLLs, DACs, and high-resolution sensor interfaces. |
| Hermetic glass sealing | Prevents moisture ingress and parameter drift in humid or corrosive environments (e.g., naval electronics). |
| Non-ESD-sensitive design | Withstands handling without special precautions per MIL-STD-750 Method 1020 - simplifies assembly logistics. |
Applications
| Avionics Power Regulation | Military Radio Bias Networks |
|---|---|
Use Scenario: Regulating 28 V DC bus in airborne communication transceivers subject to wide ambient temperature swings (-55 to +125 °C). IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp protecting downstream LDOs and RF amplifiers. Use Value: Maintains ±0.5% output stability across full temp range due to +0.095 %/°C αVZ and 200 Ω ZZT. |
Use Scenario: Providing stable bias voltage for GaAs FET drivers in tactical HF/VHF radios exposed to vibration and EMI. IC Role / Device Role / Timing Role: Low-noise 28 V reference source for amplifier stage biasing and AGC circuitry. Use Value: 1 µV/√Hz noise density prevents AM sideband distortion; hermetic DO-35 package resists shock-induced parameter shift. |
| Satellite Payload Reference | Missile Guidance Sensor Conditioning |
Use Scenario: Generating precision reference for ADCs monitoring solar array voltage in LEO satellites. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference replacing less robust commercial regulators in analog front-ends. Use Value: Inherent radiation tolerance (MicroNote 050) eliminates need for shielding or redundancy overhead. |
Use Scenario: Clamping transient spikes on inertial measurement unit (IMU) power rails during launch acceleration. IC Role / Device Role / Timing Role: Fast-response overvoltage protector absorbing >100 J surges without degradation. Use Value: 500 mW power rating and 250 °C/W RθJL enable reliable energy dissipation into PCB copper heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4119US (Microchip) | Same 28 V nominal Zener voltage, but surface-mount DO-213AA package; 150 Ω ZZT; RoHS-compliant only. | Lacks MIL-qualified screening; not rated for JANS/JAN levels; unsuitable for flight-critical hardware. | Select when board space is constrained and military qualification is not required. |
| JANTXV1N4119 (Microsemi) | Identical electrical specs and DO-35 package, but qualified to JANTXV level with enhanced screening and lot traceability. | Approved for higher-reliability programs (e.g., NASA Class S, DoD Category A); requires additional test documentation. | Choose when system-level reliability mandates JANTXV screening beyond JAN baseline. |
Compared with JAN1N4119-1, 1N4119US trades military qualification for SMT compatibility and RoHS compliance, while JANTXV1N4119 extends the same proven DO-35 platform with tighter process controls and extended environmental testing - making it ideal for programs where failure risk must be quantified below 10⁻⁶ FIT.
Availability
JAN1N4119-1 is available at Aetrix Electronics and suitable for avionics power regulation, military radio bias networks, satellite payload reference, and missile guidance sensor conditioning requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4119-1 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, with emphasis on radiation-hardened and mil-qualified components.
The JAN1N4119-1 belongs to Microsemi's legacy 1N4099–1N4135 series of metallurgically bonded Zeners, engineered specifically for voltage regulation in mission-critical systems where parameter stability under extreme thermal, mechanical, and radiation stress is non-negotiable.
FAQ
What is the Zener voltage tolerance for JAN1N4119-1?
JAN1N4119-1 has a nominal Zener voltage of 28.0 V with a standard tolerance of ±5%, as defined by JEDEC registration and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This tolerance applies at 250 mA test current and 25 °C ambient temperature, and is consistent across all JAN-level units in the 1N4099–1N4135 family.
Is JAN1N4119-1 RoHS compliant?
No, JAN1N4119-1 is not RoHS compliant. Per the nomenclature guide on page 2 of T4-LDS-0245-2, the "e3" suffix denotes RoHS compliance and is available only on commercial-grade versions. The JAN prefix indicates military qualification, which uses traditional tin-lead plating per MIL-STD-750 Method 2026 - a requirement for solderability and reliability in high-reliability assemblies.
What is the maximum reverse leakage current for JAN1N4119-1?
The maximum reverse leakage current (IR) for JAN1N4119-1 is 0.01 µA at VR = 21.3 V, as specified in the Electrical Characteristics table on page 3. This ultra-low leakage ensures negligible current draw in standby modes and preserves accuracy in high-impedance reference divider networks used with precision op-amps or ADCs.
Can JAN1N4119-1 be used in surface-mount designs?
No, JAN1N4119-1 is exclusively packaged in the axial-leaded DO-35 (DO-204AH) glass case and is not compatible with surface-mount assembly. For SMT alternatives, Microsemi offers the 1N4119UR-1 in DO-213AA and 1PMT4119 in DO-216 packages - but these lack JAN-level qualification and use different screening and marking conventions.
What is the thermal resistance junction-to-lead for JAN1N4119-1?
The thermal resistance junction-to-lead (RθJL) for JAN1N4119-1 is 250 °C/W when measured at 10 mm (3/8 inch) lead length from the package body, as stated in the Maximum Ratings table on page 1. This value enables accurate thermal modeling for PCB copper pad sizing and heatsinking in high-power-density avionics modules.
JAN1N4119-1 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:
- ±5%
- 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)
JAN1N4119-1 FAQ
1.How can I place an order for JAN1N4119-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4119-1 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 JAN1N4119-1 reliable?
The price and inventory of JAN1N4119-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4119-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4119-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4119-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4119-1?
JAN1N4119-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4119-1 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 JAN1N4119-1?
For technical support, including JAN1N4119-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4119-1 requirements.
6.How does Aetrix verify that JAN1N4119-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4119-1 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 JAN1N4119-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4119-1?
All JAN1N4119-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4119-1, 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 JAN1N4119-1 part is unused and in its original packaging.
Return procedure for JAN1N4119-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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