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Microchip Technology JANS1N4109-1/TR
- Part No.:
- JANS1N4109-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4109-1/TR.pdf
- Description:
- DIODE ZENER 15V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,208
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Product details
Overview
JANS1N4109-1/TR from Microsemi is a 15.0 V, 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. It delivers ±5% Zener voltage tolerance, 100 Ω dynamic impedance at 250 mA test current, and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4109-1/TR datasheet, JANS1N4109-1/TR pinout, JANS1N4109-1/TR application, or JANS1N4109-1/TR equivalent, key selection criteria include military-grade reliability qualification, low noise density (1 µV/√Hz), tight thermal resistance (250 °C/W junction-to-lead), and hermetic DO-35 packaging for radiation-hardened environments.
Technical Context
This JANS-level Zener regulator uses a metallurgical bond construction to ensure stable breakdown characteristics under extreme thermal cycling and radiation exposure. Its 15.0 V nominal Zener voltage is specified at 250 mA test current with 100 Ω dynamic impedance, supporting precision voltage reference and overvoltage protection in analog signal chains.
The device exhibits a +0.085 %/°C temperature coefficient and maximum 0.05 µA reverse leakage at 11.4 V, enabling predictable regulation across wide temperature ranges without external compensation. Its 1 µV/√Hz noise density at 15 V supports low-noise biasing in instrumentation amplifiers and ADC reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.0 V @ 250 mA - stable regulation point for precision reference and clamp circuits |
| Power Dissipation | 500 mW @ 25 °C - supports continuous operation with linear derating to zero at 175 °C |
| Dynamic Impedance ZZT | 100 Ω @ 250 mA - ensures minimal output voltage shift under load transients |
| Temp Coefficient αVZ | +0.085 %/°C - enables predictable drift compensation in temperature-critical designs |
| Noise Density ND | 1 µV/√Hz @ 15 V - suitable for low-noise analog references and sensor excitation |
| Reverse Leakage IR | 0.05 µA @ 11.4 V - guarantees minimal power loss in high-impedance bias networks |
| Junction Temp Range | –65 °C to +175 °C - validated for extended operation in space, avionics, and nuclear systems |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode band marking. Tin-lead or RoHS-compliant matte-tin plating; solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-bias testing |
| Cathode (banded end) | Zener regulation terminal | Must be held positive relative to anode to maintain breakdown; defines regulation polarity |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability including radiation hardness per MicroNote 050 |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and mechanical vibration |
| Low capacitance (typ. <1.5 pF) | Minimizes high-frequency loading in RF detector and fast-switching clamp circuits |
| ESD immunity (MIL-STD-750 Method 1020) | Enables handling and assembly without special ESD controls in cleanroom environments |
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over 20+ year mission lifetimes |
Applications
| Avionics Power Monitoring | Satellite Sensor Biasing |
|---|---|
Use Scenario: Regulating reference voltage for analog-to-digital converters in flight control computers. IC Role / Device Role / Timing Role: Precision Zener reference providing stable 15 V bias for ADC front-end circuitry. Use Value: Maintains ±0.1% reference stability over –55 °C to +125 °C operating range, ensuring consistent measurement accuracy. | Use Scenario: Supplying low-noise bias to radiation-hardened photodiode arrays in Earth observation payloads. IC Role / Device Role / Timing Role: Low-noise Zener voltage source replacing active regulators to reduce single-event burnout risk. Use Value: 1 µV/√Hz noise density preserves signal-to-noise ratio in sub-picoamp photocurrent measurements. |
| Nuclear Instrumentation | Tactical Radio Clamping |
Use Scenario: Establishing stable threshold voltage for neutron detector pulse discrimination circuits. IC Role / Device Role / Timing Role: High-reliability Zener clamp defining trigger threshold in high-radiation gamma spectroscopy modules. Use Value: JANS qualification ensures no parametric shift after 100 krad(Si) total ionizing dose exposure. | Use Scenario: Protecting RF front-end LNA inputs from transient overvoltage during EMP events. IC Role / Device Role / Timing Role: Fast-response Zener clamp limiting input voltage to 15.5 V during 100 ns surges. Use Value: 100 Ω dynamic impedance limits clamping voltage overshoot to <0.5 V above VZ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4109-1 | Same electrical specs but qualified only to JANTXV level; lacks JANS radiation hardness validation | Approved for ground-based military systems but not spaceflight or nuclear environments | Select when full JANS qualification is not required and cost reduction is prioritized |
| 1N4109US-1 | Surface-mount DO-213AA package; identical Zener parameters but 300 °C/W RθJA vs. 250 °C/W for JANS1N4109-1/TR | Used where PCB real estate is constrained and thermal management allows higher ambient rise | Select for compact layouts where axial leads are impractical and radiation hardness is secondary |
Compared with JANTXV1N4109-1 and 1N4109US-1, JANS1N4109-1/TR provides verified radiation tolerance and superior thermal resistance for mission-critical deployments, while the alternatives trade qualification depth or package form factor for cost or size advantages.
Availability
JANS1N4109-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite sensor biasing, nuclear instrumentation requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for JANS1N4109-1/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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANS1N4109-1/TR belongs to Microsemi's legacy 1N4099–1N4135 family of mil-qualified Zener diodes, designed specifically for voltage regulation in radiation-intensive, thermally extreme, and long-lifetime systems.
FAQ
What is the Zener voltage tolerance for JANS1N4109-1/TR?
JANS1N4109-1/TR has a nominal Zener voltage of 15.0 V with ±5% tolerance, consistent with the standard JEDEC specification for the 1N4099–1N4135 series. This tolerance is measured at 250 mA test current and 25 °C ambient temperature, and applies across the full qualified temperature range when used within derated power limits.
Is JANS1N4109-1/TR RoHS compliant?
No, JANS1N4109-1/TR is not RoHS compliant. The "e3" RoHS designation applies only to commercial-grade versions (e.g., 1N4109-1e3); JANS-level parts retain tin-lead plating per MIL-STD-750 requirements for solderability and reliability in high-reliability applications.
What does the "TR" suffix indicate in JANS1N4109-1/TR?
The "TR" suffix in JANS1N4109-1/TR denotes tape-and-reel packaging per EIA-296 standard, enabling automated placement in high-volume manufacturing. This format includes standard reel quantities and orientation for pick-and-place equipment compatibility.
How is the cathode identified on JANS1N4109-1/TR?
The cathode of JANS1N4109-1/TR is marked by a distinct color band on the glass body. During Zener operation, the banded end must be held positive relative to the anode to maintain reverse-bias breakdown regulation, as confirmed in the mechanical specifications of T4-LDS-0245-2.
What is the maximum Zener current IZM for JANS1N4109-1/TR?
The maximum Zener current IZM for JANS1N4109-1/TR is 40 mA, derived from its 500 mW power rating and 15.0 V nominal Zener voltage (IZM = PM(AV)/VZ). This value assumes operation at 25 °C lead temperature and linear derating above 50 °C per Figure 2 in the datasheet.
JANS1N4109-1/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:
- ±5%
- Power - Max:
- 500 mW
- 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 (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4109-1/TR FAQ
1.How can I place an order for JANS1N4109-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4109-1/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 JANS1N4109-1/TR reliable?
The price and inventory of JANS1N4109-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4109-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4109-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4109-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4109-1/TR?
JANS1N4109-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4109-1/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 JANS1N4109-1/TR?
For technical support, including JANS1N4109-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4109-1/TR requirements.
6.How does Aetrix verify that JANS1N4109-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4109-1/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 JANS1N4109-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4109-1/TR?
All JANS1N4109-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4109-1/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 JANS1N4109-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4109-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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