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Microchip Technology JANTXV1N4125D-1
- Part No.:
- JANTXV1N4125D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4125D-1.pdf
- Description:
- DIODE ZENER 47V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,860
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Product details
Overview
JANTXV1N4125D-1 from Microsemi is a 500 mW, 47 V, 1% tolerance 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 JANTXV1N4125D-1 datasheet, JANTXV1N4125D-1 pinout, JANTXV1N4125D-1 application, or JANTXV1N4125D-1 equivalent, key selection criteria include Zener voltage (47 V), tolerance (±1%), dynamic impedance (250 Ω at 250 mA), noise density (4 μV/√Hz), and JANTXV-level qualification for extended temperature (-65 °C to +175 °C) operation.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 47 V at 250 mA test current (IZT), exhibiting a temperature coefficient of +0.095 %/°C and low noise density (4 μV/√Hz). Its metallurgical bond construction ensures stable regulation across wide current (1–40 mA) and temperature ranges.
Designed for high-reliability mil-spec applications, JANTXV1N4125D-1 maintains ≤0.01 μA reverse leakage at 37.6 V (80% of VZ), achieves 250 Ω dynamic impedance (ZZT) at IZT, and supports full-rated 500 mW dissipation up to 50 °C before linear derating to zero at +175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V at 250 mA - defines precise regulation point for reference and clamp circuits |
| Zener Tolerance | ±1% - enables tight voltage control in precision analog and feedback loops |
| Power Dissipation | 500 mW at TC = 25 °C - supports robust thermal margin in conduction-cooled designs |
| Dynamic Impedance (ZZT) | 250 Ω at 250 mA - determines output voltage stability under load transients |
| Noise Density (ND) | 4 μV/√Hz - critical for low-noise references in instrumentation and ADC biasing |
| Reverse Leakage (IR) | ≤0.01 μA at 37.6 V - ensures minimal error current in high-impedance sensing nodes |
| Temp Coefficient (αVZ) | +0.095 %/°C - quantifies drift over -65 °C to +175 °C operating range |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by band - device operated with banded end positive relative to unbanded end for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lowest potential point in shunt regulator topology |
| Cathode (banded end) | Zener regulation terminal | Applied to input voltage source; regulates voltage drop across load connected between cathode and anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Guarantees screening, testing, and traceability for aerospace and defense programs requiring extended reliability |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| 1% Zener voltage tolerance | Reduces need for external trimming in precision voltage references and feedback networks |
| Low noise density (4 μV/√Hz) | Enables use in low-drift analog front-ends without additional filtering |
| Hermetic glass DO-35 package | Provides long-term moisture and contaminant immunity in harsh environmental deployments |
Applications
| Avionics Power Reference | Satellite DC-DC Feedback |
|---|---|
Use Scenario: Stable 47 V reference for analog-to-digital converters and sensor signal conditioning in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage reference providing primary regulation for ±15 V and ±5 V LDOs. Use Value: ±1% tolerance and +0.095 %/°C tempco ensure <±0.5% total drift over -55 °C to +125 °C operational envelope. | Use Scenario: Voltage clamp and reference in radiation-hardened isolated DC-DC converter feedback loop on LEO satellite bus. IC Role / Device Role / Timing Role: Precision Zener element in optocoupler-coupled secondary-side regulation path. Use Value: Inherent radiation hardness per MicroNote 050 and ≤0.01 μA IR at 37.6 V maintain regulation integrity after 100 krad(Si) TID exposure. |
| Ground-Based Radar Bias Supply | Tactical Radio RF Amplifier Clamp |
Use Scenario: High-stability bias supply for GaN HEMT driver stages in S-band radar transmitters. IC Role / Device Role / Timing Role: Zener clamp protecting gate drive circuitry from transient overvoltage during pulsed RF operation. Use Value: 500 mW rating and 250 Ω ZZT limit clamping voltage excursion to <±0.5 V under 100 ns 10 A surge events. | Use Scenario: RF stage protection in manpack HF/VHF radios subjected to ESD and antenna coupling transients. IC Role / Device Role / Timing Role: Low-capacitance (≈2 pF) shunt clamp limiting RF amplifier base-emitter voltage swing. Use Value: Minimal capacitance preserves RF bandwidth while 47 V breakdown prevents transistor saturation during antenna hot-swap events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4125US-1 | Same 47 V, 1% spec but in surface-mount DO-213AA package; no JANTXV qualification | Used where board space is constrained and mil-spec screening is not required | Select when RoHS-compliant SMT assembly and commercial reliability suffice |
| JAN1N4125D-1 | Identical electrical specs and DO-35 package, but qualified only to JAN level (less stringent screening than JANTXV) | Deployed in non-flight-critical subsystems with lower reliability requirements | Select when cost sensitivity outweighs need for full JANTXV burn-in and lot acceptance testing |
Compared with JANTXV1N4125D-1, 1N4125US-1 trades JANTXV qualification and axial leads for SMT compatibility, while JAN1N4125D-1 retains the same package and function but omits enhanced screening-making both viable alternatives depending on whether form factor or qualification level drives the design decision.
Availability
JANTXV1N4125D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC feedback, and ground-based radar bias supply applications requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for JANTXV1N4125D-1 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.
JANTXV1N4125D-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems exposed to extreme temperature, radiation, and mechanical stress.
FAQ
What is the Zener voltage and tolerance of JANTXV1N4125D-1?
JANTXV1N4125D-1 has a nominal Zener voltage of 47 V at 250 mA test current (IZT), with a guaranteed tolerance of ±1%. This value is measured under thermal equilibrium at 25 °C ambient and remains stable across its qualified operating temperature range of -65 °C to +175 °C.
Is JANTXV1N4125D-1 qualified to military specifications?
Yes, JANTXV1N4125D-1 is fully qualified to MIL-PRF-19500/435 at the JANTXV reliability level, including rigorous screening for vibration, thermal shock, and burn-in. It meets all requirements for high-reliability applications in aerospace and defense platforms where failure is not acceptable.
What is the maximum power dissipation and derating behavior of JANTXV1N4125D-1?
JANTXV1N4125D-1 is rated for 500 mW average power dissipation at case temperature (TC) = 25 °C. Power must be linearly derated starting at 50 °C, reaching zero at 175 °C. On a typical FR4 PCB, derating begins at 25 °C ambient due to thermal resistance (RθJA = 300 °C/W).
What is the dynamic impedance and noise performance of JANTXV1N4125D-1?
JANTXV1N4125D-1 exhibits a dynamic impedance (ZZT) of 250 Ω at 250 mA test current and a noise density of 4 μV/√Hz at 1 kHz–3 kHz bandwidth. These values are confirmed per Microsemi MicroNote 202 and Figure 1 test methodology in the official datasheet.
Does JANTXV1N4125D-1 have radiation hardness characteristics?
Yes, JANTXV1N4125D-1 is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction provides proven resilience against total ionizing dose (TID) effects, making it suitable for satellite and nuclear instrumentation applications without additional shielding.
JANTXV1N4125D-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 47 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 35.8 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)
JANTXV1N4125D-1 FAQ
1.How can I place an order for JANTXV1N4125D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4125D-1 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 JANTXV1N4125D-1 reliable?
The price and inventory of JANTXV1N4125D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4125D-1 is usually 5 days.
3.What payment methods are accepted for JANTXV1N4125D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4125D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4125D-1?
JANTXV1N4125D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4125D-1 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 JANTXV1N4125D-1?
For technical support, including JANTXV1N4125D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4125D-1 requirements.
6.How does Aetrix verify that JANTXV1N4125D-1 is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4125D-1 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 JANTXV1N4125D-1 meets industry standards.
7.What is the process for return or replacement of JANTXV1N4125D-1?
All JANTXV1N4125D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4125D-1, 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 JANTXV1N4125D-1 part is unused and in its original packaging.
Return procedure for JANTXV1N4125D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4125D-1 Tags
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