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Microchip Technology JANS1N4127-1/TR
- Part No.:
- JANS1N4127-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4127-1/TR.pdf
- Description:
- DIODE ZENER 56V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,043
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Product details
Overview
JANS1N4127-1/TR from Microsemi is a 56 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435, with ±5% voltage tolerance, 300 Ω dynamic impedance at 250 mA, and max noise density of 1 µV/√Hz - used for precision voltage regulation in radiation-hardened aerospace power supplies.
For engineers reviewing the JANS1N4127-1/TR datasheet, JANS1N4127-1/TR pinout, JANS1N4127-1/TR application, or JANS1N4127-1/TR equivalent, key selection criteria include Zener voltage accuracy under thermal stress, low-noise performance at 56 V, MIL-spec reliability level (JANS), DO-35 axial-leaded mechanical robustness, and radiation hardness for space-grade analog references.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 56 V at 250 mA test current, exhibiting a positive temperature coefficient of +0.100 %/°C and dynamic impedance of 300 Ω measured at 10% AC modulation on IZT. Its metallurgical bond ensures stable breakdown characteristics across wide temperature ranges.
Designed for high-reliability environments, JANS1N4127-1/TR maintains regulation over 0–500 mW dissipation (derated linearly above 50 °C), supports ≤0.01 µA reverse leakage at 42.6 V, and delivers minimal capacitance (<1.5 pF typical) - critical for low-jitter analog references in avionics power conditioning circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 56 V at 250 mA - sets precise reference point for regulated output in high-voltage analog monitoring stages |
| Power Dissipation | 500 mW at 25 °C - enables stable operation in compact, convection-cooled military PCB layouts |
| Dynamic Impedance (ZZT) | 300 Ω at 250 mA - limits output voltage variation under load transients in feedback loops |
| Reverse Leakage (IR) | ≤0.01 µA at 42.6 V - ensures negligible error current in high-impedance reference divider networks |
| Noise Density | 1 µV/√Hz - minimizes broadband noise contribution in precision voltage references |
| Temp Coefficient (αVZ) | +0.100 %/°C - enables predictable drift compensation in temperature-stable reference designs |
| Junction Temp Range | −65 to +175 °C - supports operation in extreme environmental conditions without derating loss |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode band marking; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground-reference terminal | Connected to system ground or low-side return path in shunt regulator configuration |
| Cathode | Zener regulation node | Banded end - connects to unregulated input rail; develops stable 56 V reference relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Guarantees full screening, lot traceability, and radiation hardness per Microsemi MicroNote 050 for spaceflight use |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term Zener voltage stability |
| Low noise density (1 µV/√Hz) | Reduces RMS noise floor in precision analog signal chains where reference integrity affects ADC SNR |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over decades in sealed avionics enclosures |
| Non-ESD-sensitive design | Withstands handling per MIL-STD-750 method 1020 without parametric degradation or failure |
Applications
| Avionics Power Reference | Satellite Bus Voltage Monitor |
|---|---|
Use Scenario: Regulating 56 V bus voltage in airborne radar transmitter power supplies. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable feedback node for DC-DC converter error amplifiers. Use Value: Maintains ±0.5% output regulation across −55 to +125 °C ambient, enabling compliance with DO-160 Section 22 surge immunity. | Use Scenario: Monitoring primary power bus in LEO satellite payload modules. IC Role / Device Role / Timing Role: High-reliability voltage clamp protecting ADC inputs during solar array transients. Use Value: Survives 100 krad(Si) TID exposure while retaining <1% VZ shift - verified per MIL-PRF-19500/435 Annex G. |
| Nuclear Instrumentation | Strategic Missile Guidance PSU |
Use Scenario: Biasing photomultiplier tube (PMT) anode chains in radiation detection systems. IC Role / Device Role / Timing Role: Precision high-voltage reference establishing stable gain scaling across PMT dynodes. Use Value: Delivers <1.5 pF capacitance and <1 µV/√Hz noise - preserving pulse rise time fidelity and energy resolution. | Use Scenario: Providing regulated 56 V reference for inertial measurement unit (IMU) sensor excitation. IC Role / Device Role / Timing Role: JANS-level shunt regulator ensuring uninterrupted reference during EMI-intensive launch vibration. Use Value: Qualified to MIL-STD-883 Class B testing with zero parametric drift after 1000 thermal cycles (−65/+175 °C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4127-1 | Same electrical specs but qualified only to JANTXV level; lacks full JANS radiation hardness screening and extended life test data | Suitable for high-reliability ground-based defense systems where total ionizing dose is not a concern | Select when cost sensitivity outweighs space radiation requirements |
| 1N4127US-TR | Same 56 V rating and DO-35 package but commercial-grade (non-mil); no MIL-PRF-19500 qualification or radiation data | Applicable in industrial test equipment requiring stable reference but no environmental screening | Choose only for non-safety-critical bench instruments with controlled lab environments |
Compared with JANS1N4127-1/TR, JANTXV1N4127-1 offers identical regulation performance with reduced screening depth, while 1N4127US-TR sacrifices all military reliability attributes for lower cost and faster lead times - making JANS1N4127-1/TR the sole choice for flight-critical voltage references.
Availability
JANS1N4127-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite bus voltage monitor, and nuclear instrumentation requiring stable component supply with guaranteed long-term obsolescence management.
Supply support for JANS1N4127-1/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 and mixed-signal components for aerospace, defense, and industrial markets.
JANS1N4127-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for radiation-hardened, thermally stable voltage reference applications in mission-critical electronic systems.
FAQ
What is the Zener voltage tolerance for JANS1N4127-1/TR?
JANS1N4127-1/TR has a nominal Zener voltage of 56 V with a standard tolerance of ±5%, as defined by JEDEC registration and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current and is maintained across the full JANS qualification screening process.
Is JANS1N4127-1/TR radiation hardened?
Yes, JANS1N4127-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050 and qualified to JANS level per MIL-PRF-19500/435, which includes total ionizing dose (TID) testing and lot acceptance radiation screening - making JANS1N4127-1/TR suitable for low-earth orbit and strategic defense platforms.
What is the maximum reverse leakage current for JANS1N4127-1/TR?
The maximum reverse leakage current (IR) for JANS1N4127-1/TR is 0.01 µA at 42.6 V, as specified in the Electrical Characteristics table on page 3. This ultra-low leakage ensures minimal error current in high-impedance reference divider networks used with JANS1N4127-1/TR in precision analog circuits.
Does JANS1N4127-1/TR have RoHS compliance?
No, JANS1N4127-1/TR is not RoHS compliant. Per the nomenclature guide on page 2, the "e3" suffix denotes RoHS compliance and is available only on commercial-grade versions. JANS1N4127-1/TR carries no "e3" suffix and uses traditional tin-lead plating per MIL-STD-750 method 2026 to meet JANS reliability requirements.
What package type does JANS1N4127-1/TR use?
JANS1N4127-1/TR uses the hermetically sealed axial-leaded DO-35 (DO-204AH) glass package, as confirmed in the Mechanical and Packaging section on page 2 and illustrated in the Package Dimensions drawing on page 5. The package features a cathode band marking and weighs approximately 0.2 grams.
JANS1N4127-1/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):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 300 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 42.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4127-1/TR FAQ
1.How can I place an order for JANS1N4127-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4127-1/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 JANS1N4127-1/TR reliable?
The price and inventory of JANS1N4127-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4127-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4127-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4127-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4127-1/TR?
JANS1N4127-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4127-1/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 JANS1N4127-1/TR?
For technical support, including JANS1N4127-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4127-1/TR requirements.
6.How does Aetrix verify that JANS1N4127-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4127-1/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 JANS1N4127-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4127-1/TR?
All JANS1N4127-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4127-1/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 JANS1N4127-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4127-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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