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Microchip Technology JANTX1N4109-1/TR
- Part No.:
- JANTX1N4109-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4109-1/TR.pdf
- Description:
- DIODE ZENER 15V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,916
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Product details
Overview
JANTX1N4109-1/TR from Microsemi is a 15.0 V, ±5% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4109-1/TR datasheet, JANTX1N4109-1/TR pinout, JANTX1N4109-1/TR application, or JANTX1N4109-1/TR equivalent, key selection criteria include Zener voltage stability over temperature, low noise density (1 µV/√Hz), dynamic impedance (100 Ω at 250 mA), and hermetic DO-35 packaging for radiation-hardened environments.
Technical Context
This device operates as a precision shunt voltage regulator with cathode-banded polarity, requiring reverse bias for Zener conduction. Its metallurgical bond construction ensures stable junction characteristics across -65 °C to +175 °C operating range and supports MIL-STD-750 compliant solderability.
It delivers regulated output at 15.0 V with ±5% tolerance at IZT = 250 mA, exhibits αVZ = +0.085 %/°C temperature coefficient, and maintains low capacitance (<1.5 pF typical) per Figure 3 - critical for low-noise analog reference and timing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.0 V ±5% at 250 mA test current - defines nominal regulation point under standard thermal conditions |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - sets maximum continuous thermal load on PCB |
| Dynamic Impedance ZZT | 100 Ω at 250 mA - determines output voltage variation under load transients |
| Noise Density ND | 1 µV/√Hz at 250 mA - enables use in low-noise voltage references and precision analog circuits |
| Temp Coefficient αVZ | +0.085 %/°C - quantifies drift magnitude over operating temperature range |
| Reverse Leakage IR | 50 nA max at 12.0 V - ensures minimal parasitic current in standby or high-impedance bias networks |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extreme environmental conditions without derating |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead plating; cathode indicated by single black band; leads 1.0–1.5 inch long; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to circuit ground or lower-potential rail when used in shunt regulation |
| Cathode (banded end) | Zener breakdown terminal / regulation output node | Connected to unregulated input; provides stable 15.0 V reference to load |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense systems requiring traceable lot control and screening |
| Metallurgical bond construction | Ensures stable Zener voltage and low parameter drift over lifetime and thermal cycling |
| Low noise density (1 µV/√Hz) | Supports precision analog references where spectral purity affects ADC accuracy or oscillator phase noise |
| Hermetic DO-35 glass package | Provides immunity to moisture ingress and long-term parameter stability in harsh environments |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for space-grade applications |
Applications
| Avionics Power Reference | Spacecraft Voltage Monitor |
|---|---|
Use Scenario: Stable 15 V reference for analog-to-digital converters in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage regulator providing precision bias to op-amps and ADC front-ends. Use Value: Low 1 µV/√Hz noise density minimizes quantization error in 16-bit+ data acquisition systems. | Use Scenario: Overvoltage detection node in satellite power distribution units exposed to total ionizing dose. IC Role / Device Role / Timing Role: Radiation-hardened Zener clamp protecting downstream regulators from bus transients. Use Value: JANTX qualification and inherent radiation hardness eliminate need for shielding or redundancy in LEO missions. |
| Military Radio Bias Supply | Ground-Based Radar Calibration |
Use Scenario: Local 15 V reference for RF power amplifier bias sequencing in manpack radios operating from 24 V vehicle batteries. IC Role / Device Role / Timing Role: Temperature-stable shunt regulator compensating for battery voltage sag during transmit bursts. Use Value: +0.085 %/°C tempco ensures <±20 mV drift across -40 °C to +85 °C operational envelope. | Use Scenario: Calibration voltage source for field-deployable radar receiver gain stages requiring NIST-traceable stability. IC Role / Device Role / Timing Role: Primary Zener reference in portable calibration equipment with manual or automated verification. Use Value: Hermetic DO-35 package prevents humidity-induced VZ drift during extended outdoor deployment. |
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 electrical specs but in surface-mount DO-213AA package; no axial leads | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical mounting | Select when board space is constrained and automated assembly is used |
| JAN1N4109-1 | Identical electrical and mechanical specs but qualified only to JAN level (less stringent screening than JANTX) | Lacks JANTX-level burn-in and parametric testing; not approved for mission-critical avionics | Select for cost-sensitive commercial or non-safety-critical industrial use |
Compared with JANTX1N4109-1/TR, the 1N4109US-1 offers identical regulation performance in a compact SMT form factor, while the JAN1N4109-1 provides baseline functionality at lower qualification cost - enabling trade-offs between reliability assurance, mechanical integration, and program budget.
Availability
JANTX1N4109-1/TR is available at Aetrix Electronics and suitable for avionics power reference, spacecraft voltage monitor, and military radio bias supply applications requiring stable component supply across extended product lifecycles.
Supply support for JANTX1N4109-1/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) designs high-reliability semiconductors for aerospace, defense, and industrial markets, with expertise in radiation-hardened and mil-spec discrete components.
The JANTX1N4109-1/TR belongs to Microsemi's legacy 1N4099–1N4135 Zener series, engineered specifically for precision voltage regulation in mission-critical systems where long-term stability and environmental resilience are mandatory.
FAQ
What is the Zener voltage tolerance for JANTX1N4109-1/TR?
JANTX1N4109-1/TR has a nominal Zener voltage of 15.0 V with ±5% tolerance, measured at 250 mA test current and 25 °C ambient temperature per MIL-PRF-19500/435 requirements. This tolerance reflects the standard JEDEC specification for the 1N4099–1N4135 family and applies to all JANTX-level variants including JANTX1N4109-1/TR.
Is JANTX1N4109-1/TR RoHS compliant?
No, JANTX1N4109-1/TR is not RoHS compliant. Per the T4-LDS-0245-2 datasheet, RoHS-compliant versions (suffix "e3") are available only for commercial-grade parts, not for JANTX, JANTXV, or JANS qualified devices like JANTX1N4109-1/TR. The JANTX1N4109-1/TR uses traditional tin-lead plating per MIL-STD-750.
What is the maximum Zener current IZM for JANTX1N4109-1/TR?
The maximum Zener current IZM for JANTX1N4109-1/TR is 40 mA, derived from its 500 mW power rating and 15.0 V nominal Zener voltage (IZM = PM(AV)/VZ). This value is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2, where IZM is listed as 40 mA for all 1N4108-1 through 1N4111-1 variants.
Does JANTX1N4109-1/TR have a specified noise density?
Yes, JANTX1N4109-1/TR has a maximum noise density of 1 µV/√Hz at 250 mA test current, as stated in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This value falls within the general trend for 14–17 V Zeners in the series and is verified via the measurement circuit in Figure 1.
What does the "TR" suffix mean in JANTX1N4109-1/TR?
The "TR" suffix in JANTX1N4109-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. As noted on page 2 of T4-LDS-0245-2, this option is available for all variants in the series and requires consultation with the factory for minimum order quantities.
JANTX1N4109-1/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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4109-1/TR FAQ
1.How can I place an order for JANTX1N4109-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4109-1/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 JANTX1N4109-1/TR reliable?
The price and inventory of JANTX1N4109-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4109-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4109-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4109-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4109-1/TR?
JANTX1N4109-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4109-1/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 JANTX1N4109-1/TR?
For technical support, including JANTX1N4109-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4109-1/TR requirements.
6.How does Aetrix verify that JANTX1N4109-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4109-1/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 JANTX1N4109-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4109-1/TR?
All JANTX1N4109-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4109-1/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 JANTX1N4109-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4109-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4109-1/TR Tags
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