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Microchip Technology JANTXV1N4121C-1/TR
- Part No.:
- JANTXV1N4121C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4121C-1/TR.pdf
- Description:
- DIODE ZENER 33V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,811
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Product details
Overview
JANTXV1N4121C-1/TR from Microsemi is a 33 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANTXV level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTXV1N4121C-1/TR datasheet, JANTXV1N4121C-1/TR pinout, JANTXV1N4121C-1/TR application, or JANTXV1N4121C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), low noise density (≤40 µV/√Hz), MIL-spec qualification level, thermal resistance (RθJL = 250 °C/W), and DO-35 axial-leaded hermetic packaging.
Technical Context
This device operates as a precision shunt regulator with a nominal Zener voltage of 33.0 V at IZT = 250 mA, exhibiting a temperature coefficient of +0.095 %/°C and dynamic impedance of 200 Ω at test current. Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling and radiation exposure.
Designed for operation in the reverse-biased breakdown region, the JANTXV1N4121C-1/TR maintains regulation across wide current ranges (IZK to IZM = 25.1 mA) and ambient temperatures (–65 °C to +175 °C), with derated power dissipation above 50 °C per MIL-PRF-19500/435 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 33.0 V ±2% at IZT = 250 mA - defines precise regulation point for reference design |
| Power Dissipation PM(AV) | 500 mW @ TL = 25 °C - sets maximum continuous DC power handling |
| Zener Impedance ZZT | 200 Ω @ IZT = 250 mA - determines output voltage stability under load transients |
| Reverse Leakage IR | 10 µA @ VR = 25.1 V - specifies minimum off-state current for low-power bias networks |
| Noise Density ND | ≤40 µV/√Hz @ IZT - limits broadband noise contribution in precision analog references |
| Temp Coefficient αVZ | +0.095 %/°C - quantifies voltage drift over operating temperature range |
| Thermal Resistance RθJL | 250 °C/W @ 10 mm lead length - enables thermal design margin calculation for PCB mounting |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in shunt regulator circuit |
| Cathode | Zener regulation output | Provides stabilized 33 V output when reverse biased; marked with band |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Guarantees screening, testing, and traceability for flight-critical systems |
| Metallurgical bond construction | Ensures mechanical integrity and parameter stability under shock/vibration and thermal stress |
| 2% Zener voltage tolerance | Reduces need for external trimming in precision voltage reference circuits |
| Low noise density ≤40 µV/√Hz | Supports use in low-noise analog front-ends and sensor excitation circuits |
| Hermetic DO-35 glass package | Prevents moisture ingress and parameter drift in harsh environmental conditions |
Applications
| Aerospace Power Reference | Defense System Biasing |
|---|---|
Use Scenario: Stable 33 V reference for ADC/DAC calibration in satellite telemetry modules. IC Role / Device Role / Timing Role: Shunt voltage regulator providing precision reference for data conversion subsystems. Use Value: JANTXV1N4121C-1/TR's ±2% tolerance and +0.095 %/°C tempco enable <±0.5% total error over –55 °C to +125 °C. | Use Scenario: Bias supply for RF amplifier stages in radar receiver front-ends. IC Role / Device Role / Timing Role: Low-noise Zener source stabilizing gate bias voltages in GaAs FET amplifiers. Use Value: ≤40 µV/√Hz noise density prevents degradation of receiver noise figure in L-band systems. |
| Avionics Sensor Excitation | Tactical Radio Voltage Clamp |
Use Scenario: Excitation source for strain gauge bridges in flight control surface position sensors. IC Role / Device Role / Timing Role: Precision current source driver via series resistor, regulated by JANTXV1N4121C-1/TR. Use Value: Metallurgical bond and MIL qualification ensure long-term stability under vibration and thermal cycling. | Use Scenario: Overvoltage clamp protecting microcontroller I/O pins in handheld radios exposed to ESD events. IC Role / Device Role / Timing Role: Transient voltage suppressor operating in Zener breakdown during surge conditions. Use Value: Hermetic DO-35 package and non-ESD-sensitive construction meet MIL-STD-750 method 1020. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4121US-1 | Same electrical specs but in DO-213AA surface-mount package | Requires SMT reflow process; no axial through-hole mounting | Select for space-constrained PCBs where automated assembly is preferred |
| 1N4121C-1/TR | Commercial-grade version; same DO-35 package and 2% tolerance, but not MIL-qualified | Not suitable for aerospace/defense programs requiring JANTXV screening | Select for cost-sensitive industrial applications with lower reliability requirements |
Compared with JANTXV1N4121C-1/TR, the JANTXV1N4121US-1 offers identical regulation performance in a surface-mount form factor, while the 1N4121C-1/TR provides identical electrical behavior without MIL-PRF-19500/435 qualification-enabling trade-offs between reliability assurance, board assembly method, and program compliance requirements.
Availability
JANTXV1N4121C-1/TR is available at Aetrix Electronics and suitable for aerospace power references, defense system biasing, and avionics sensor excitation requiring stable component supply with full traceability and extended lifecycle support.
Supply support for JANTXV1N4121C-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 JANTXV1N4121C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation hardness, and long-term reliability are mandatory.
FAQ
What is the Zener voltage tolerance of JANTXV1N4121C-1/TR?
JANTXV1N4121C-1/TR has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This corresponds to a nominal 33.0 V regulation point ranging from 32.34 V to 33.66 V at IZT = 250 mA and 25 °C, enabling tighter reference accuracy than standard ±5% variants without external trimming.
Is JANTXV1N4121C-1/TR RoHS compliant?
No, JANTXV1N4121C-1/TR is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts-not for JAN, JANTX, JANTXV, or JANS qualified devices like JANTXV1N4121C-1/TR, which retain tin-lead plating to meet MIL-PRF-19500/435 solderability and reliability requirements.
What is the maximum Zener current IZM for JANTXV1N4121C-1/TR?
The maximum Zener current IZM for JANTXV1N4121C-1/TR is 25.1 mA, derived from its 500 mW power rating and 33.0 V nominal Zener voltage (IZM = PM(AV)/VZ). This value assumes operation at 25 °C lead temperature; derating applies linearly above 50 °C per MIL-PRF-19500/435 specifications.
How does the temperature coefficient affect JANTXV1N4121C-1/TR performance?
JANTXV1N4121C-1/TR has a temperature coefficient αVZ of +0.095 %/°C, meaning its Zener voltage increases by approximately 31.4 mV per °C rise from 25 °C. This positive drift must be accounted for in wide-temperature-range applications; for example, at +125 °C, VZ rises by ~9.5 V, resulting in ~42.5 V regulation-critical for thermal design margins in avionics systems.
What package type is used for JANTXV1N4121C-1/TR?
JANTXV1N4121C-1/TR uses the DO-35 (DO-204AH) hermetically sealed axial-leaded glass package, with overall dimensions of 1.000–1.500 inches length and 0.056–0.090 inches body diameter. The cathode is marked by a visible band, and the device is designed for through-hole mounting with 10 mm lead length for thermal resistance specification.
JANTXV1N4121C-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):
- 33 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 25.1 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)
JANTXV1N4121C-1/TR FAQ
1.How can I place an order for JANTXV1N4121C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4121C-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 JANTXV1N4121C-1/TR reliable?
The price and inventory of JANTXV1N4121C-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 JANTXV1N4121C-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4121C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4121C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4121C-1/TR?
JANTXV1N4121C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4121C-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 JANTXV1N4121C-1/TR?
For technical support, including JANTXV1N4121C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4121C-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4121C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4121C-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 JANTXV1N4121C-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4121C-1/TR?
All JANTXV1N4121C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4121C-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 JANTXV1N4121C-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4121C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4121C-1/TR Tags
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