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Microchip Technology JANS1N4127C-1/TR
- Part No.:
- JANS1N4127C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4127C-1/TR.pdf
- Description:
- DIODE ZENER 56V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,387
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Product details
Overview
JANS1N4127C-1/TR from Microsemi is a 56 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense voltage regulation. It delivers stable reference voltage with 300 Ω dynamic impedance at 250 mA test current and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4127C-1/TR datasheet, JANS1N4127C-1/TR pinout, JANS1N4127C-1/TR application, or JANS1N4127C-1/TR equivalent, key selection criteria include Zener voltage tolerance (2%), radiation hardness, noise density (≤1 µV/√Hz), and military-grade thermal derating behavior up to 175 °C.
Technical Context
This device functions as a precision voltage reference in regulated power supplies and analog signal conditioning circuits where long-term stability under extreme thermal and radiation environments is required. Its internal metallurgical bond ensures low parameter drift and hermetic reliability, while the DO-35 axial-glass package supports lead-forming for through-hole mounting in ruggedized PCB assemblies.
The JANS1N4127C-1/TR exhibits a positive temperature coefficient of +0.100 %/°C above 6.8 V, enabling predictable voltage shift over temperature-critical for biasing circuits in satellite telemetry systems and avionics sensor interfaces. Its maximum reverse leakage is 0.01 µA at 42.6 V, supporting ultra-low-power standby regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 56 V ±2% at 250 mA - provides tight reference accuracy for critical analog subsystems requiring minimal calibration drift. |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - enables operation in high-temperature chassis without forced cooling. |
| Dynamic Impedance (ZZT) | 300 Ω at 250 mA - ensures low output impedance for stable regulation under varying load conditions. |
| Noise Density | ≤1 µV/√Hz - minimizes voltage reference noise in precision instrumentation amplifiers and ADC reference circuits. |
| Reverse Leakage (IR) | ≤0.01 µA at 42.6 V - supports ultra-low quiescent current designs in battery-backed monitoring systems. |
| Temp. Coefficient (αVZ) | +0.100 %/°C - allows predictable, monotonic voltage shift for temperature-compensated bias networks. |
| Junction Temp. Range | –65 °C to +175 °C - certified for operation in space-grade and nuclear-hardened electronic enclosures. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Tin-lead plating, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; forms low-impedance path for reverse-bias current during regulation. |
| Cathode | Zener output terminal | Banded end; carries regulated 56 V output; must be held at higher potential than anode to maintain breakdown conduction. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Guarantees full screening, lot traceability, and extended reliability testing for flight-critical applications. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring parametric stability over 10,000+ cycles. |
| Hermetically sealed glass package | Prevents moisture ingress and corrosion in high-humidity or salt-spray environments (e.g., naval radar systems). |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for low-earth orbit missions. |
| Low capacitance | Typical <1.5 pF - preserves high-frequency signal integrity in RF detector and fast-switching regulator feedback paths. |
Applications
| Aerospace Power Regulation | Avionics Sensor Biasing |
|---|---|
Use Scenario: Primary voltage reference in DC-DC converter feedback loops for satellite bus power distribution units. IC Role / Device Role / Timing Role: Zener diode providing stable 56 V reference for error amplifier input in isolated flyback controllers. Use Value: JANS-level screening and radiation hardness ensure uninterrupted regulation during solar particle events and orbital radiation exposure. | Use Scenario: Precision bias source for piezoresistive pressure transducers in flight control surface position sensors. IC Role / Device Role / Timing Role: Reference voltage generator establishing fixed excitation potential across Wheatstone bridge elements. Use Value: 2% tolerance and +0.100 %/°C tempco enable calibrated output linearity across –55 °C to +125 °C operational envelope. |
| Nuclear Instrumentation | Tactical Radio RF Detection |
Use Scenario: Stable reference in gamma-ray spectrometer front-end amplifiers operating inside reactor containment buildings. IC Role / Device Role / Timing Role: Low-noise Zener supplying reference for charge-sensitive preamplifier bias networks. Use Value: ≤1 µV/√Hz noise density prevents degradation of energy resolution in pulse-height analysis circuits. | Use Scenario: Peak detector clamp in wideband SDR receiver IF stages used in secure tactical radios. IC Role / Device Role / Timing Role: Fast-response Zener clamping RF envelope signals to protect downstream ADC inputs. Use Value: Sub-1.5 pF capacitance avoids detuning of 100–500 MHz IF filters and maintains amplitude fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4127C-1 | Same 56 V, 2% Zener voltage and DO-35 package; qualified to JANTXV level (less stringent screening than JANS). | Lacks full JANS radiation and life-test requirements; not approved for Class S space applications. | Select when cost sensitivity outweighs need for full JANS screening, e.g., ground-based test equipment. |
| 1N4127C-1/TR | Commercial-grade version; identical electrical specs but no MIL-PRF-19500 qualification or radiation data. | Not suitable for mission-critical or high-reliability deployments; RoHS-compliant plating only. | Choose for prototyping or non-safety-critical industrial controls where traceability and screening are not mandated. |
Compared with JANTXV1N4127C-1 and 1N4127C-1/TR, the JANS1N4127C-1/TR uniquely provides documented TID tolerance, full lot traceability, and extended temperature derating validation-making it the sole option for Class S spaceflight hardware and nuclear facility instrumentation.
Availability
JANS1N4127C-1/TR is available at Aetrix Electronics and suitable for aerospace power regulation, avionics sensor biasing, and nuclear instrumentation requiring stable component supply across extended temperature and radiation environments.
Supply support for JANS1N4127C-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.
The JANS1N4127C-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, designed specifically for voltage reference stability in mission-critical systems exposed to extreme thermal, mechanical, and radiation stress.
FAQ
What is the Zener voltage tolerance of JANS1N4127C-1/TR?
The JANS1N4127C-1/TR has a nominal Zener voltage of 56 V with a tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This tolerance is verified under standard test conditions at 25 °C with 250 mA Zener test current and applies across the full qualified temperature range when used within specified power derating limits.
Is JANS1N4127C-1/TR radiation hardened?
Yes, the JANS1N4127C-1/TR is inherently radiation hard per Microsemi MicroNote 050 due to its metallurgically bonded structure and hermetic DO-35 package. It is qualified to JANS level per MIL-PRF-19500/435, which includes radiation testing protocols appropriate for low-earth orbit and terrestrial nuclear environments.
What is the maximum reverse leakage current for JANS1N4127C-1/TR?
The maximum reverse leakage current (IR) for JANS1N4127C-1/TR is 0.01 µA measured at 42.6 V (76% of nominal VZ). This value is specified in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet and reflects performance under standard 25 °C ambient conditions.
Does JANS1N4127C-1/TR require derating above 25 °C?
Yes, JANS1N4127C-1/TR must be linearly derated starting at 25 °C ambient temperature, reducing average power dissipation from 500 mW to zero at 175 °C. Derating follows the curve shown in Figure 2 of the datasheet and accounts for both ambient and lead temperature effects per MIL-PRF-19500/435 requirements.
What does the "TR" suffix indicate in JANS1N4127C-1/TR?
The "TR" suffix in JANS1N4127C-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated placement in high-volume manufacturing. This packaging option is available for all variants in the 1N4099–1N4135 series and does not affect electrical or reliability specifications of the JANS1N4127C-1/TR device itself.
JANS1N4127C-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:
- ±2%
- 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)
JANS1N4127C-1/TR FAQ
1.How can I place an order for JANS1N4127C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4127C-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 JANS1N4127C-1/TR reliable?
The price and inventory of JANS1N4127C-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 JANS1N4127C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4127C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4127C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4127C-1/TR?
JANS1N4127C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4127C-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 JANS1N4127C-1/TR?
For technical support, including JANS1N4127C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4127C-1/TR requirements.
6.How does Aetrix verify that JANS1N4127C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4127C-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 JANS1N4127C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4127C-1/TR?
All JANS1N4127C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4127C-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 JANS1N4127C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4127C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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