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Microchip Technology JANTXV1N4121D-1/TR
- Part No.:
- JANTXV1N4121D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4121D-1/TR.pdf
- Description:
- DIODE ZENER 33V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,533
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Product details
Overview
JANTXV1N4121D-1/TR from Microsemi is a 33 V, 1% tolerance, 500 mW axial-leaded Zener diode in DO-35 glass package, qualified to JANTXV level per MIL-PRF-19500/435, used for precision voltage regulation in military-grade power supply reference and analog signal conditioning circuits.
For engineers reviewing the JANTXV1N4121D-1/TR datasheet, JANTXV1N4121D-1/TR pinout, JANTXV1N4121D-1/TR application, or JANTXV1N4121D-1/TR equivalent, key selection criteria include Zener voltage tolerance (±1%), temperature coefficient (+0.095 %/°C), dynamic impedance (200 Ω @ 250 mA), noise density (40 µV/√Hz), and hermetic DO-35 packaging for high-reliability environments.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse-bias operation where the banded end is positive relative to the anode. Its metallurgically bonded junction ensures stable breakdown characteristics across -65 °C to +175 °C junction temperature range.
It delivers regulated output at 33 V with 250 mA test current (IZT), exhibits 200 Ω dynamic impedance (ZZT), and maintains low noise density (40 µV/√Hz) - critical for low-drift analog references in avionics and space-grade instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 33.0 V ±1% @ 250 mA - enables precise mid-range voltage reference without trimming. |
| Power Dissipation | 500 mW @ TC = 25 °C - supports stable regulation in compact through-hole layouts with linear derating above 50 °C. |
| Dynamic Impedance ZZT | 200 Ω @ IZT = 250 mA - ensures minimal output voltage shift under load variation in feedback networks. |
| Temp. Coefficient αVZ | +0.095 %/°C - predictable positive drift simplifies thermal compensation in wide-temperature systems. |
| Noise Density ND | 40 µV/√Hz @ 25 °C - low broadband noise preserves signal integrity in precision ADC reference paths. |
| Reverse Leakage IR | ≤10 µA @ VR = 25.1 V - guarantees tight regulation onset and low quiescent error in low-current biasing. |
| Junction Temp. Range | -65 °C to +175 °C - validated for extended operation in harsh aerospace and defense platforms. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; defines Zener conduction direction. |
| Cathode (banded) | Regulated output node | Provides stable 33 V output when reverse-biased; must be held positive relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for flight-critical and nuclear-hardened systems with full traceability and screening. |
| 1% Zener voltage tolerance (D suffix) | Eliminates post-assembly calibration in precision reference designs; reduces BOM variants. |
| Metallurgical bond construction | Ensures long-term parameter stability under thermal cycling and radiation exposure per MicroNote 050. |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency loading in RF bias networks and fast-switching regulator feedback paths. |
| Non-ESD-sensitive (MIL-STD-750 Method 1020) | Enables handling in standard assembly lines without special ESD controls or packaging. |
Applications
| Aerospace Power Reference | Avionics Sensor Biasing |
|---|---|
Use Scenario: Providing stable 33 V reference for analog-to-digital converters in inertial measurement units (IMUs) operating across -55 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Two-terminal Zener voltage reference establishing precision scaling for sensor signal conditioning front-ends. Use Value: ±1% tolerance and +0.095 %/°C tempco enable <0.5% total error over full temperature range without active compensation. | Use Scenario: Biasing piezoresistive pressure transducers in flight control surface position sensors. IC Role / Device Role / Timing Role: Low-noise, low-capacitance voltage source supplying excitation to bridge-based transducers. Use Value: 40 µV/√Hz noise density and <2 pF capacitance prevent signal corruption and phase shift in millivolt-level outputs. |
| Tactical Radio RF Stage Bias | Nuclear Instrumentation Supply |
Use Scenario: Setting gate bias for GaAs FET amplifiers in S-band tactical radios exposed to shock and vibration. IC Role / Device Role / Timing Role: Stable DC bias generator maintaining amplifier linearity under transient thermal stress. Use Value: Hermetic DO-35 package and -65 °C to +175 °C rating ensure uninterrupted operation during rapid environmental transitions. | Use Scenario: Regulating detector bias voltage in gamma spectroscopy modules deployed in reactor containment zones. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference maintaining calibration integrity under neutron/gamma flux. 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 voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4121US-1/TR | Same 33 V, 1% spec but in DO-213AA surface-mount package; no axial leads. | Requires PCB redesign for SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical retention. | Select when board space is constrained and automated placement is available. |
| JANS1N4121D-1 | Identical electrical specs and DO-35 package, but qualified to JANS (highest MIL-PRF-19500 level) with full lot traceability and extended screening. | Required for spaceflight and nuclear safety-critical systems; higher cost and longer lead time. | Select only when JANS-level documentation and radiation testing reports are mandated. |
Compared with JANTXV1N4121D-1/TR, the 1N4121US-1/TR offers footprint reduction at the cost of mechanical robustness, while JANS1N4121D-1 adds mission-critical screening without altering electrical behavior - enabling tiered qualification deployment across program phases.
Availability
JANTXV1N4121D-1/TR is available at Aetrix Electronics and suitable for aerospace power reference, avionics sensor biasing, and tactical radio RF stage bias applications requiring stable component supply under extended temperature and radiation constraints.
Supply support for JANTXV1N4121D-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, mixed-signal, and radiation-hardened components for defense, aerospace, and industrial markets.
The JANTXV1N4121D-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems where parametric stability under extreme environmental stress is non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTXV1N4121D-1/TR?
JANTXV1N4121D-1/TR has a nominal Zener voltage of 33.0 V with ±1% tolerance, indicated by the "D" suffix in its nomenclature. This tight tolerance is verified per MIL-PRF-19500/435 screening and enables direct use in precision reference circuits without external trimming or calibration. The JANTXV1N4121D-1/TR achieves this specification at 250 mA test current and 25 °C ambient.
Is JANTXV1N4121D-1/TR RoHS compliant?
No, JANTXV1N4121D-1/TR is not RoHS compliant. Per the Microsemi datasheet T4-LDS-0245-2, RoHS compliance (e3 suffix) is available only on commercial-grade versions of this series. The JANTXV1N4121D-1/TR carries the JANTXV reliability level and uses tin-lead plating, consistent with MIL-PRF-19500 requirements for high-reliability applications.
What is the maximum operating temperature for JANTXV1N4121D-1/TR?
JANTXV1N4121D-1/TR is rated for junction and storage temperatures from -65 °C to +175 °C. Its thermal resistance junction-to-lead is 250 °C/W with 3/8″ lead length, and power dissipation linearly derates from 500 mW at 25 °C to zero at 175 °C. This makes JANTXV1N4121D-1/TR suitable for engine bay, avionics bay, and space-grade thermal environments.
Does JANTXV1N4121D-1/TR have radiation hardness certification?
Yes, JANTXV1N4121D-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded construction and hermetic DO-35 package provide proven resilience against total ionizing dose (TID) and displacement damage, supporting use in satellite power systems and nuclear instrumentation without additional shielding or derating.
What does the "TR" suffix mean in JANTXV1N4121D-1/TR?
The "TR" suffix in JANTXV1N4121D-1/TR indicates tape-and-reel packaging per EIA-296 standard, intended for automated assembly. It does not affect electrical or reliability specifications. The base part JANTXV1N4121D-1 remains identical in performance and qualification; the TR variant simply enables pick-and-place integration while retaining full JANTXV-level screening and traceability.
JANTXV1N4121D-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:
- ±1%
- 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)
JANTXV1N4121D-1/TR FAQ
1.How can I place an order for JANTXV1N4121D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4121D-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 JANTXV1N4121D-1/TR reliable?
The price and inventory of JANTXV1N4121D-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 JANTXV1N4121D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4121D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4121D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4121D-1/TR?
JANTXV1N4121D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4121D-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 JANTXV1N4121D-1/TR?
For technical support, including JANTXV1N4121D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4121D-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4121D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4121D-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 JANTXV1N4121D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4121D-1/TR?
All JANTXV1N4121D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4121D-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 JANTXV1N4121D-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4121D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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