Microchip Technology JAN1N4109C-1/TR
- Part No.:
- JAN1N4109C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4109C-1/TR.pdf
- Description:
- DIODE ZENER 15V DO204AH
- Quantity:
- Payment:

- Shipping:

Inventory:8,642
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Product details
Overview
JAN1N4109C-1/TR from Microsemi is a 15 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, reference circuits, and overvoltage protection.
For engineers reviewing the JAN1N4109C-1/TR datasheet, JAN1N4109C-1/TR pinout, JAN1N4109C-1/TR application, or JAN1N4109C-1/TR equivalent, key selection criteria include Zener voltage (15.0 V ±2%), dynamic impedance (200 Ω at 250 mA), noise density (40 µV/√Hz), temperature coefficient (+0.085 %/°C), and JANS-qualified thermal derating behavior.
Technical Context
This axial-leaded Zener diode operates in reverse breakdown with cathode-banded polarity, delivering stable regulation across 10–100 mA current range and -65°C to +175°C junction temperature. Its metallurgical bond ensures low leakage (≤0.05 µA at 12 V) and radiation hardness per MicroNote 050.
The device exhibits minimal capacitance (<2 pF at 0 V), low forward voltage (1.1 V @ 200 mA), and linear power derating from 500 mW at 25°C to zero at 175°C - critical for thermally constrained military avionics and satellite subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.0 V ±2% at 250 mA - enables precision 15 V rail regulation with tight tolerance for analog references. |
| Power Dissipation | 500 mW @ TL = 25°C - supports continuous operation in compact through-hole layouts with 3/8″ lead length. |
| Zener Impedance ZZT | 200 Ω max at 250 mA - ensures low output impedance for stable regulation under load transients. |
| Noise Density | 40 µV/√Hz - suitable for low-noise voltage references in precision instrumentation and ADC biasing. |
| Temp Coefficient αVZ | +0.085 %/°C - predictable positive drift allows compensation in temperature-critical feedback networks. |
| Reverse Leakage IR | ≤0.05 µA @ 12 V - guarantees minimal standby current in battery-backed systems and low-power monitors. |
| Junction Temp Range | -65°C to +175°C - validated for extended-temperature operation in engine control units and space-grade electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-glass package with tin-lead plating; cathode indicated by single black band; weight ≈0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-bias testing and ESD screening. |
| Cathode (banded end) | Zener regulation terminal | Must be held positive relative to anode to enter breakdown; defines polarity for voltage clamp and reference configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial voids, ensuring long-term stability and low parameter drift under thermal cycling. |
| MIL-PRF-19500/435 JAN qualification | Validated reliability for mission-critical applications including flight control and radar power conditioning. |
| Low noise density | 40 µV/√Hz at 15 V enables use in high-resolution data acquisition front-ends without added filtering. |
| Hermetic glass seal | Prevents moisture ingress and corrosion, supporting >20-year shelf life and operation in humid environments. |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - simplifies handling and eliminates need for special ESD controls. |
Applications
| Aerospace Power Regulation | Defense System Reference |
|---|---|
Use Scenario: Regulating 15 V supply rails in satellite telemetry modules operating across -55°C to +125°C ambient. IC Role / Device Role / Timing Role: Zener diode providing primary voltage reference for DC-DC converter feedback and sensor biasing. Use Value: Stable 15.0 V ±2% output with +0.085 %/°C TC enables accurate closed-loop control without external trimming. | Use Scenario: Precision voltage reference in missile guidance inertial measurement unit (IMU) analog signal chains. IC Role / Device Role / Timing Role: Low-noise 15 V reference source for op-amp biasing and ADC reference buffers. Use Value: 40 µV/√Hz noise density minimizes quantization error in 16-bit analog-to-digital conversion. |
| Avionics Overvoltage Clamp | Radiation-Hardened Sensor Interface |
Use Scenario: Transient suppression on 15 V avionics bus lines exposed to lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Fast-response Zener clamp protecting downstream FPGAs and microcontrollers. Use Value: 200 Ω dynamic impedance limits clamping voltage overshoot during 100 ns surge events. | Use Scenario: Biasing radiation-tolerant photodiodes in nuclear reactor monitoring sensors. IC Role / Device Role / Timing Role: Radiation-hardened voltage reference maintaining accuracy after 100 krad(Si) total ionizing dose. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in high-dose environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4109US-1 | Same 15 V, 2% 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. |
| JANTXV1N4109C-1 | Identical electrical specs but qualified to JANTXV level with enhanced screening (burn-in, thermal shock, life test). | Required for Class H/V avionics where failure modes demand higher confidence in early-life reliability. | Select when program mandates JANTXV-level screening per MIL-PRF-19500/435. |
Compared with 1N4109US-1 and JANTXV1N4109C-1, JAN1N4109C-1/TR provides optimal balance of proven axial-leaded robustness, JAN-level qualification, and tape-and-reel logistics - ideal for legacy system sustainment and mixed-technology PCBs.
Availability
JAN1N4109C-1/TR is available at Aetrix Electronics and suitable for aerospace power regulation, defense system reference design, and avionics overvoltage clamp applications requiring stable component supply with full traceability and long-term obsolescence management.
Supply support for JAN1N4109C-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 aerospace-grade components.
The JAN1N4109C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, designed specifically for voltage regulation in mission-critical defense, space, and nuclear instrumentation systems.
FAQ
What is the Zener voltage tolerance of JAN1N4109C-1/TR?
JAN1N4109C-1/TR has a nominal Zener voltage of 15.0 V with a ±2% tolerance, as indicated by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25°C ambient, and applies across the full qualified temperature range (-65°C to +175°C) per MIL-PRF-19500/435 requirements.
Is JAN1N4109C-1/TR RoHS compliant?
No, JAN1N4109C-1/TR is not RoHS compliant. The "e3" RoHS designation appears only on commercial-grade versions (e.g., 1N4109C-1e3); JAN-level parts like JAN1N4109C-1/TR retain traditional tin-lead plating to meet MIL-STD-750 solderability and reliability requirements for high-reliability applications.
What does the "TR" suffix mean in JAN1N4109C-1/TR?
The "TR" suffix in JAN1N4109C-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. This format is factory-authorized and maintains full JAN-level qualification; reel quantities and packaging details must be confirmed with Aetrix Electronics prior to order.
How is thermal derating applied to JAN1N4109C-1/TR?
JAN1N4109C-1/TR linearly derates from 500 mW at 25°C to zero at 175°C ambient on a typical FR4 board with 4 mm² copper pads. Derating begins at 50°C lead temperature, with RθJL = 250°C/W at 3/8″ lead length - critical for thermal design in sealed enclosures or high-power-density avionics chassis.
Can JAN1N4109C-1/TR be used as a low-noise voltage reference?
Yes, JAN1N4109C-1/TR delivers 40 µV/√Hz noise density at 15 V, making it suitable for low-noise analog references. Its metallurgical bond and hermetic glass package minimize 1/f noise and parameter drift, supporting stable performance in precision instrumentation - though external filtering may be needed for sub-10 µV/√Hz requirements.
JAN1N4109C-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):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.4 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)
JAN1N4109C-1/TR FAQ
1.How can I place an order for JAN1N4109C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4109C-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 JAN1N4109C-1/TR reliable?
The price and inventory of JAN1N4109C-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 JAN1N4109C-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4109C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4109C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4109C-1/TR?
JAN1N4109C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4109C-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 JAN1N4109C-1/TR?
For technical support, including JAN1N4109C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4109C-1/TR requirements.
6.How does Aetrix verify that JAN1N4109C-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4109C-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 JAN1N4109C-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4109C-1/TR?
All JAN1N4109C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4109C-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 JAN1N4109C-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4109C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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