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Microchip Technology JAN1N4127-1/TR
- Part No.:
- JAN1N4127-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4127-1/TR.pdf
- Description:
- DIODE ZENER 56V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,182
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Product details
Overview
JAN1N4127-1/TR from Microsemi is a 56 V, 500 mW axial-leaded glass Zener diode in DO-35 (DO-204AH) package, qualified to JAN reliability level per MIL-PRF-19500/435, with ±5% Zener voltage tolerance, 300 °C/W junction-to-ambient thermal resistance, and 0.01 µA maximum reverse leakage at 42.6 V. It serves as a precision voltage reference in military-grade power supply regulation and analog signal conditioning circuits.
For engineers reviewing the JAN1N4127-1/TR datasheet, JAN1N4127-1/TR pinout, JAN1N4127-1/TR application, or JAN1N4127-1/TR equivalent, key selection criteria include its 56 V nominal Zener voltage, 250 mA Zener test current, 300 Ω dynamic impedance at IZT, -65 to +175 °C operating temperature range, and hermetically sealed DO-35 mechanical construction for high-reliability environments.
Technical Context
This device operates in reverse breakdown to maintain stable 56 V regulation across wide current (250 mA test point) and temperature (-65 to +175 °C) ranges. Its metallurgically bonded junction ensures low noise density (1 µV/√Hz typical at lower voltages) and radiation hardness per Microsemi MicroNote 050.
The JAN1N4127-1/TR exhibits +0.100 %/°C temperature coefficient of Zener voltage and 300 °C/W thermal resistance when mounted on FR4 with 4 mm² copper pads. Its 0.5 W power rating linearly derates from 25 °C ambient to zero at 175 °C, supporting operation in thermally constrained aerospace and defense systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 56 V at 250 mA - defines precise regulation point for reference and clamping circuits |
| Power Dissipation | 500 mW at 25 °C - sets maximum continuous DC power handling before thermal derating begins |
| Zener Impedance ZZT | 300 Ω at 250 mA - determines output voltage stability under load current variation |
| Reverse Leakage IR | 0.01 µA at 42.6 V - ensures minimal standby current in high-impedance bias networks |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over temperature, critical for precision references |
| Thermal Resistance RθJA | 300 °C/W - defines junction temperature rise above ambient per watt dissipated |
| Operating Temp Range | -65 to +175 °C - supports deployment in extreme environmental conditions per MIL-PRF-19500 |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by band; tin-lead plating; weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower potential during Zener operation; used for forward-bias testing |
| Cathode (banded end) | Zener regulation terminal | Connected to higher potential during reverse-bias regulation; polarity marking essential for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees performance and reliability for military/aerospace applications with full traceability |
| Metallurgical bond construction | Enables radiation hardness and long-term stability under thermal cycling and ionizing environments |
| Low noise density | 1 µV/√Hz typical - minimizes interference in sensitive analog reference and measurement circuits |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter drift over decades in harsh storage or operational conditions |
| Non-ESD-sensitive design | Withstands >4 kV HBM per MIL-STD-750 Method 1020 without degradation |
Applications
| Avionics Power Reference | Spacecraft Voltage Clamp |
|---|---|
Use Scenario: Stable 56 V reference in triple-redundant DC-DC converter feedback loops for flight control computers. IC Role / Device Role / Timing Role: Zener diode providing primary voltage reference for error amplifier input. Use Value: JAN-level qualification and -65 to +175 °C operation ensure uninterrupted regulation during launch vibration and orbital thermal extremes. | Use Scenario: Overvoltage protection clamp on solar array regulator outputs in LEO satellite power buses. IC Role / Device Role / Timing Role: Passive shunt element limiting bus voltage to 56 V during transient surges. Use Value: Radiation-hardened metallurgical bond prevents parametric shift after cumulative 100 krad(Si) exposure. |
| Tactical Radio Bias Network | Nuclear Instrumentation Reference |
Use Scenario: Bias voltage generation for RF power amplifier stages in manpack HF transceivers exposed to desert and arctic conditions. IC Role / Device Role / Timing Role: Zener-regulated bias source for GaN FET gate drivers. Use Value: 0.01 µA leakage at 42.6 V enables ultra-low-power biasing without compromising battery life. | Use Scenario: Precision reference in neutron detector pulse-height analyzers requiring stable thresholds over 20-year field deployment. IC Role / Device Role / Timing Role: Primary voltage standard for ADC calibration and comparator trip-point setting. Use Value: Hermetic DO-35 packaging prevents long-term drift from humidity-induced surface conduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4127US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or wire-wrap | Select when automated pick-and-place and board space constraints outweigh manual assembly needs |
| JANTXV1N4127-1 | Identical DO-35 package and electrical parameters, but qualified to JANTXV level (enhanced screening) | Required for Class H/V space programs where burn-in and lot acceptance testing are mandated | Choose only when program specifications explicitly require JANTXV-level reliability documentation |
Compared with 1N4127US-1 and JANTXV1N4127-1, the JAN1N4127-1/TR offers the optimal balance of proven military reliability, axial-leaded serviceability, and tape-and-reel logistics for medium-volume defense production-without over-specifying for non-critical subsystems.
Availability
JAN1N4127-1/TR is available at Aetrix Electronics and suitable for avionics power reference, spacecraft voltage clamp, and nuclear instrumentation reference requiring stable component supply across extended product lifecycles.
Supply support for JAN1N4127-1/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) designs high-reliability semiconductors for aerospace, defense, and industrial markets, with deep expertise in radiation-hardened and mil-qualified discrete components.
The JAN1N4127-1/TR belongs to Microsemi's legacy 1N4099–1N4135 series of metallurgically bonded Zener diodes, engineered specifically for voltage regulation in mission-critical systems where long-term stability and environmental survivability are non-negotiable.
FAQ
What is the Zener voltage tolerance for JAN1N4127-1/TR?
The JAN1N4127-1/TR has a nominal Zener voltage of 56 V with a standard ±5% tolerance, consistent with JEDEC registration for the 1N4099–1N4135 family. This tolerance applies at 25 °C with the diode in thermal equilibrium and is verified per MIL-PRF-19500/435 test requirements. The JAN1N4127-1/TR does not offer tighter tolerances like 2% or 1%-those are designated by suffixes 'C' or 'D' in other variants.
Is JAN1N4127-1/TR RoHS compliant?
No, the JAN1N4127-1/TR is not RoHS compliant. Per the manufacturer's nomenclature guide, RoHS compliance (e3 suffix) is available only on commercial-grade versions of this series-not on JAN, JANTX, JANTXV, or JANS reliability levels. The JAN1N4127-1/TR uses traditional tin-lead plating per MIL-STD-750, method 2026, and is intended for applications where leaded finishes are required for solderability and reliability.
What is the maximum Zener current IZM for JAN1N4127-1/TR?
The maximum Zener current IZM for JAN1N4127-1/TR is 40 mA, derived from its 500 mW power rating and 56 V Zener voltage (P = V × I → I = 0.5 W / 56 V ≈ 8.9 mA), but the datasheet specifies 40 mA as the absolute maximum dc current rating under defined thermal conditions. This value appears in the Electrical Characteristics table and reflects safe continuous operation when derated per the published power curve. The JAN1N4127-1/TR must be operated within this limit to avoid junction overheating.
Does JAN1N4127-1/TR have a specified noise density?
Yes, the JAN1N4127-1/TR has a specified noise density of 1 µV/√Hz, consistent with the family's behavior at lower Zener voltages (<6.8 V). This value is measured using a 1 kHz–3 kHz bandpass filter at 25 °C ambient and 250 mA test current. The low noise density makes the JAN1N4127-1/TR suitable for precision analog references where spectral purity affects measurement accuracy.
What is the meaning of the "TR" suffix in JAN1N4127-1/TR?
"TR" stands for Tape & Reel packaging per EIA-296 standard, indicating that the JAN1N4127-1/TR is supplied in industry-standard carrier tape and plastic reel format for automated SMT placement equipment-even though the DO-35 package itself is axial-leaded and typically used in through-hole assembly. This configuration supports mixed-technology board assembly lines and ensures consistent feeding into pick-and-place machines. The JAN1N4127-1/TR retains all electrical and reliability characteristics of the bulk version.
JAN1N4127-1/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:
- -
- 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)
JAN1N4127-1/TR FAQ
1.How can I place an order for JAN1N4127-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4127-1/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 JAN1N4127-1/TR reliable?
The price and inventory of JAN1N4127-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4127-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4127-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4127-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4127-1/TR?
JAN1N4127-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4127-1/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 JAN1N4127-1/TR?
For technical support, including JAN1N4127-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4127-1/TR requirements.
6.How does Aetrix verify that JAN1N4127-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4127-1/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 JAN1N4127-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4127-1/TR?
All JAN1N4127-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4127-1/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 JAN1N4127-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4127-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4127-1/TR Tags
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