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Microchip Technology JANTX1N4115-1/TR
- Part No.:
- JANTX1N4115-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4115-1/TR.pdf
- Description:
- DIODE ZENER 22V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,195
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Product details
Overview
JANTX1N4115-1/TR from Microsemi is a 500 mW, 22 V, ±5% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in military and aerospace power conditioning circuits.
For engineers reviewing the JANTX1N4115-1/TR datasheet, JANTX1N4115-1/TR pinout, JANTX1N4115-1/TR application, or JANTX1N4115-1/TR equivalent, key selection criteria include its 22 V nominal Zener voltage at 250 mA test current, 150 Ω dynamic impedance, 0.01 µA maximum reverse leakage at 17.6 V, radiation-hardened construction, and hermetic DO-35 packaging for stable operation across –65 °C to +175 °C.
Technical Context
This device operates as a precision shunt voltage regulator with a defined breakdown knee at IZK = 250 mA and exhibits a positive temperature coefficient of +0.090 %/°C above 20 V. Its internal metallurgical bond ensures low noise density (1 µV/√Hz typical at 22 V) and minimal capacitance (≈2.5 pF), critical for low-jitter reference applications.
Designed for operation under thermal equilibrium at 25 °C ambient, it requires linear derating from 500 mW starting at 50 °C lead temperature, reaching zero dissipation at 175 °C. Reverse polarity is indicated by cathode band; regulation occurs with banded end positive relative to anode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 22 V at 250 mA test current - defines stable regulation point for biasing and reference circuits |
| Zener Tolerance | ±5% - supports standard industrial/military voltage margin requirements without custom screening |
| Power Dissipation | 500 mW at 25 °C - enables compact board layout with thermal derating to zero at 175 °C |
| Dynamic Impedance | 150 Ω at 250 mA - determines output voltage stability under load transients |
| Reverse Leakage | 0.01 µA max at 17.6 V - ensures minimal quiescent current in high-impedance reference nodes |
| Temp Coefficient | +0.090 %/°C - allows predictable drift compensation in wide-temperature-range systems |
| Noise Density | 1 µV/√Hz typical - supports low-noise analog references and precision ADC/VCO biasing |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead plating; cathode identified by single black band. Total weight ≈0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm, lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during Zener conduction | Connected to system ground or lower-potential rail; carries full regulated current |
| Cathode | Regulated output node | Banded end; held at stable 22 V relative to anode; used for biasing, feedback, or reference |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Guarantees screening, testing, and traceability for defense/aerospace deployment |
| Metallurgical bond construction | Enables low noise (1 µV/√Hz), stable Zener knee, and radiation hardness per MicroNote 050 |
| Hermetic glass DO-35 package | Provides long-term reliability in humid, corrosive, or vacuum environments without encapsulation |
| Non-ESD-sensitive design | Withstands handling per MIL-STD-750 Method 1020 without special precautions |
| Minimal junction capacitance | ≈2.5 pF (typical) - preserves high-frequency response in RF bias and timing circuits |
Applications
| Avionics Power Reference | Spacecraft Voltage Monitor |
|---|---|
Use Scenario: Providing stable 22 V reference for analog-to-digital converters in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage reference regulating supply rail for precision ADC front-end biasing. Use Value: Maintains <±0.5% output stability over –55 °C to +125 °C due to +0.090 %/°C TC and JANTX-level thermal cycling validation. | Use Scenario: Monitoring bus voltage integrity in satellite power distribution units exposed to total ionizing dose. IC Role / Device Role / Timing Role: Radiation-hardened Zener element in overvoltage detection circuitry. Use Value: Delivers verified performance up to 100 krad(Si) per Microsemi MicroNote 050, with no parametric shift after irradiation. |
| Military Radio Bias Supply | Tactical Radar Local Oscillator Tuning |
Use Scenario: Generating fixed bias voltage for RF power amplifier stages in handheld HF/VHF transceivers. IC Role / Device Role / Timing Role: Low-noise DC bias source stabilizing transistor operating point under varying battery load. Use Value: 1 µV/√Hz noise density prevents AM sideband degradation in sensitive receive paths. | Use Scenario: Setting tuning voltage for varactor-diode-controlled VCOs in pulsed radar frequency synthesizers. IC Role / Device Role / Timing Role: Precision voltage reference defining center frequency of local oscillator chain. Use Value: 150 Ω dynamic impedance ensures minimal frequency pulling during modulation transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4115US-1 | Same 22 V Zener, DO-213AA surface-mount package; 250 mW rating; RoHS-compliant matte-tin plating | Used where PCB space constraints prohibit axial leads; not qualified beyond commercial grade | Select when automated SMT assembly required and MIL-specification is not mandatory |
| JANS1N4115-1 | Identical electrical specs and DO-35 package; qualified to JANS level (highest MIL-PRF-19500 reliability tier) | Required for mission-critical spacecraft and nuclear-hardened systems demanding full lot traceability and extended temperature screening | Select when full JANS screening, radiation testing, and 100% lot acceptance testing are contractually mandated |
Compared with JANTX1N4115-1/TR, 1N4115US-1 trades axial-mount reliability for SMT manufacturability and lower power rating, while JANS1N4115-1 extends the same core Zener performance to the highest military assurance level-enabling selection based on program assurance requirements rather than electrical function alone.
Availability
JANTX1N4115-1/TR is available at Aetrix Electronics and suitable for avionics power reference, spacecraft voltage monitor, and military radio bias supply requiring stable component supply with full MIL-PRF-19500 traceability and long-term obsolescence management.
Supply support for JANTX1N4115-1/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 analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JANTX1N4115-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in harsh-environment electronic systems where radiation tolerance, thermal stability, and long-term parametric consistency are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTX1N4115-1/TR?
JANTX1N4115-1/TR has a nominal Zener voltage of 22 V with a ±5% tolerance, consistent with the standard JEDEC specification for the 1N4099–1N4135 series. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current and is verified per MIL-PRF-19500/435 screening requirements for JANTX-grade devices.
Does JANTX1N4115-1/TR require derating at elevated temperatures?
Yes, JANTX1N4115-1/TR must be linearly derated from 500 mW starting at 50 °C lead temperature, reaching zero dissipation at 175 °C. For ambient conditions on a typical FR4 board, derating begins at 25 °C per Figure 2 in the T4-LDS-0245-2 datasheet. Thermal resistance junction-to-lead is 250 °C/W with 10 mm lead length.
Is JANTX1N4115-1/TR radiation hardened?
Yes, JANTX1N4115-1/TR is inherently radiation hard per Microsemi MicroNote 050 due to its metallurgically bonded glass construction. It is qualified to MIL-PRF-19500/435 JANTX level, supporting operation in total ionizing dose environments typical of low-earth orbit and tactical military platforms.
What does the "TR" suffix indicate in JANTX1N4115-1/TR?
The "TR" suffix in JANTX1N4115-1/TR denotes tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. This is a packaging option only; all electrical, thermal, and reliability specifications remain identical to the bulk version JANTX1N4115-1.
How is polarity marked on JANTX1N4115-1/TR?
JANTX1N4115-1/TR uses a single black cathode band on the glass body to indicate polarity. For Zener regulation, the banded (cathode) end must be held positive relative to the unmarked (anode) end. This marking complies with JEDEC standards and is verified during MIL-PRF-19500/435 visual inspection.
JANTX1N4115-1/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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 16.8 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)
JANTX1N4115-1/TR FAQ
1.How can I place an order for JANTX1N4115-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4115-1/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 JANTX1N4115-1/TR reliable?
The price and inventory of JANTX1N4115-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4115-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4115-1/TR?
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JANTX1N4115-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4115-1/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 JANTX1N4115-1/TR?
For technical support, including JANTX1N4115-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4115-1/TR requirements.
6.How does Aetrix verify that JANTX1N4115-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4115-1/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 JANTX1N4115-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4115-1/TR?
All JANTX1N4115-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4115-1/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 JANTX1N4115-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4115-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4115-1/TR Tags
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