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Microchip Technology JAN1N4127D-1/TR
- Part No.:
- JAN1N4127D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4127D-1/TR.pdf
- Description:
- DIODE ZENER 56V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,512
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Product details
Overview
JAN1N4127D-1/TR from Microsemi is a 56 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435, used for precision voltage regulation in high-reliability military and aerospace power supply circuits.
For engineers reviewing the JAN1N4127D-1/TR datasheet, JAN1N4127D-1/TR pinout, JAN1N4127D-1/TR application, or JAN1N4127D-1/TR equivalent, key selection criteria include Zener voltage tolerance (±1%), temperature coefficient (+0.100 %/°C), noise density (1 µV/√Hz), dynamic impedance (300 Ω), and JANS-level radiation hardness.
Technical Context
This device operates in reverse breakdown with cathode-banded polarity, delivering stable 56 V regulation at 250 mA test current (IZT). Its metallurgical bond construction ensures low thermal resistance (RθJL = 250 °C/W) and minimal capacitance (<1 pF typical at 56 V), critical for low-noise reference designs.
It exhibits a positive temperature coefficient of +0.100 %/°C above 47 V, enabling predictable drift compensation in wide-temperature-range systems. Noise density is specified at 1 µV/√Hz - among the lowest in the 1N41xx series - verified under 1 kHz–3 kHz bandpass measurement at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 56 V ±1% at 250 mA - enables precise reference generation with tight initial accuracy for calibration-critical systems. |
| Power Dissipation | 500 mW at 25 °C - supports stable regulation in compact axial-leaded layouts with linear derating to zero at 175 °C. |
| Dynamic Impedance (ZZT) | 300 Ω max at 250 mA - ensures minimal output voltage variation under load transients in feedback references. |
| Noise Density (ND) | 1 µV/√Hz - provides ultra-low broadband noise for high-resolution analog measurement and sensor excitation circuits. |
| Temp Coefficient (αVZ) | +0.100 %/°C - allows accurate thermal drift modeling in avionics and satellite power conditioning units. |
| Reverse Leakage (IR) | 10 nA max at 42.6 V - guarantees negligible current draw in standby or low-power monitoring nodes. |
| Package | DO-35 (DO-204AH) - hermetically sealed glass axial package rated for JANS-level reliability and radiation hardness. |
Pinout & Package
DO-35 (DO-204AH) glass axial 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 common return; defines 0 V reference point for Zener regulation. |
| Cathode (banded end) | Regulated output node | Provides stable 56 V output when reverse biased; must be held positive relative to anode for regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables robust thermal performance (RθJL = 250 °C/W) and long-term stability under thermal cycling in space-grade assemblies. |
| JANS qualification per MIL-PRF-19500/435 | Validated for total ionizing dose (TID) >100 krad(Si) and single-event burnout immunity - essential for LEO/MEO satellite power rails. |
| 1% Zener voltage tolerance | Reduces need for post-calibration trimming in precision voltage references for flight computer power monitors. |
| Ultra-low noise density (1 µV/√Hz) | Supports sub-millivolt-level stability in analog front-ends for radiation-hardened data acquisition systems. |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over 20+ year mission lifetimes in vacuum or high-humidity environments. |
Applications
| Avionics Power Reference | Satellite Bus Voltage Monitor |
|---|---|
Use Scenario: Providing stable 56 V reference for ADC biasing and regulator feedback in flight control power modules. IC Role / Device Role / Timing Role: Precision Zener reference diode establishing primary voltage setpoint in triple-redundant DC-DC converter feedback loops. Use Value: ±1% tolerance and +0.100 %/°C TC enable <±0.5% total error across –55 °C to +125 °C, meeting DO-160E Section 22 requirements. | Use Scenario: Monitoring 56 V bus integrity in spacecraft power distribution units during orbit insertion and payload activation. IC Role / Device Role / Timing Role: High-reliability voltage clamp protecting telemetry comparators against overvoltage transients during solar array deployment. Use Value: JANS qualification and 1 µV/√Hz noise ensure fault detection accuracy remains unaffected by radiation-induced leakage or EMI. |
| Military Radar Bias Supply | Nuclear Instrumentation Calibration |
Use Scenario: Generating stable bias for GaN RF amplifier stages in ground-based radar transmitters operating at extended temperature ranges. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying gate bias to high-efficiency RF power stages requiring <100 ppm/hour drift. Use Value: Metallurgical bond and DO-35 hermeticity maintain regulation stability after 10,000 thermal cycles (–65 °C to +175 °C). | Use Scenario: Calibrating gamma spectrometer high-voltage supplies where reference drift directly impacts energy resolution. IC Role / Device Role / Timing Role: Primary voltage standard in NIST-traceable calibration fixtures for radiation detector bias networks. Use Value: 1% tolerance and <10 nA leakage at 42.6 V eliminate calibration uncertainty contributions from reference instability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N4127C-1/TR | Same 56 V nominal, but ±2% tolerance and identical +0.100 %/°C TC; otherwise identical electrical and mechanical specs. | Acceptable where tighter tolerance not required; lower cost for non-critical biasing in ground support equipment. | Select JAN1N4127C-1/TR only if system-level calibration accommodates ±2% initial error. |
| JANS1N4127D-1/TR | Identical 56 V ±1%, same DO-35 package and metallurgical bond, but qualified to JANS (not JAN) level per MIL-PRF-19500/435. | Required for spaceflight missions or nuclear-hardened platforms demanding full JANS screening (radiation, burn-in, lot traceability). | Choose JANS1N4127D-1/TR when full JANS certification documentation and lot-level radiation test reports are mandatory. |
Compared with JAN1N4127D-1/TR, JAN1N4127C-1/TR trades 1% tolerance for cost savings in less demanding environments, while JANS1N4127D-1/TR adds full JANS screening for mission-critical radiation exposure - neither is pin-compatible in qualification context, though both share identical physical and electrical behavior.
Availability
JAN1N4127D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite bus voltage monitor, and military radar bias supply applications requiring stable component supply with full traceability and long-term obsolescence management.
Supply support for JAN1N4127D-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, radiation-hardened, and defense-grade analog and mixed-signal components.
The 1N41xx series was developed specifically for military and aerospace voltage regulation needs, emphasizing JANS qualification, ultra-low noise, and long-term parametric stability under extreme environmental stress.
FAQ
What is the Zener voltage tolerance of JAN1N4127D-1/TR?
JAN1N4127D-1/TR has a Zener voltage tolerance of ±1% at 250 mA test current, as indicated by the "D" suffix in its part number per Microsemi's nomenclature. This tight tolerance is maintained across the full operating temperature range of –65 °C to +175 °C and supports high-accuracy voltage referencing without post-manufacture trimming.
Is JAN1N4127D-1/TR qualified to JANS level?
No - JAN1N4127D-1/TR is qualified to JAN level per MIL-PRF-19500/435. The "JAN" prefix denotes compliance with basic military screening, while JANS requires additional radiation testing and lot traceability. For JANS qualification, the correct part is JANS1N4127D-1/TR, which shares identical electrical specs but carries full space-grade certification.
What is the maximum Zener current (IZM) for JAN1N4127D-1/TR?
The maximum Zener current IZM for JAN1N4127D-1/TR is 42.6 mA at 25 °C ambient, derived from its 500 mW power rating and 56 V nominal Zener voltage (P = V × I). This value decreases linearly with rising lead temperature, reaching zero at 175 °C per the published derating curve in T4-LDS-0245-2.
Does JAN1N4127D-1/TR have RoHS compliance?
No - JAN1N4127D-1/TR is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (suffix "e3") are available only on commercial-grade parts (e.g., 1N4127D-1e3/TR), not on JAN-qualified devices. JAN1N4127D-1/TR uses traditional tin-lead plating per MIL-STD-750 method 2026.
What is the noise density specification for JAN1N4127D-1/TR?
JAN1N4127D-1/TR has a maximum noise density of 1 µV/√Hz, measured using a 1 kHz–3 kHz bandpass filter at 25 °C ambient and 250 mA Zener test current. This value is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 and represents the lowest noise in the 1N4124–1N4135 family.
JAN1N4127D-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:
- ±1%
- Power - Max:
- -
- 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4127D-1/TR FAQ
1.How can I place an order for JAN1N4127D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4127D-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 JAN1N4127D-1/TR reliable?
The price and inventory of JAN1N4127D-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 JAN1N4127D-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4127D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4127D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4127D-1/TR?
JAN1N4127D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4127D-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 JAN1N4127D-1/TR?
For technical support, including JAN1N4127D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4127D-1/TR requirements.
6.How does Aetrix verify that JAN1N4127D-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4127D-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 JAN1N4127D-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4127D-1/TR?
All JAN1N4127D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4127D-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 JAN1N4127D-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4127D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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