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Microchip Technology JAN1N4128D-1
- Part No.:
- JAN1N4128D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4128D-1.pdf
- Description:
- DIODE ZENER 60V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,290
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Product details
Overview
JAN1N4128D-1 from Microsemi is a 60 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to JAN level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4128D-1 datasheet, JAN1N4128D-1 pinout, JAN1N4128D-1 application, or JAN1N4128D-1 equivalent, key selection factors include its 60 V nominal Zener voltage at 250 mA test current, 400 Ω maximum dynamic impedance, 0.01 µA maximum reverse leakage at 45.6 V, ±0.100 %/°C temperature coefficient, and hermetically sealed glass construction for stable operation across -65 °C to +175 °C.
Technical Context
This Zener diode operates in reverse breakdown to maintain precise DC reference voltage under varying load and temperature conditions. Its internal metallurgical bond ensures low noise density (≤1 µV/√Hz below 6.8 V), minimal capacitance, and radiation hardness per Microsemi MicroNote 050.
Designed for regulated power supply feedback paths and precision voltage references, it delivers stable regulation with 1% initial tolerance and controlled thermal drift. The DO-35 package supports axial-leaded through-hole mounting with cathode band polarity marking and tin-lead plating compliant with MIL-STD-750 method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 60.0 V at 250 mA - provides accurate voltage reference point for feedback loops in regulated DC-DC converters. |
| Zener Tolerance | ±1% - tight initial accuracy enables high-precision regulation without post-manufacturing trimming. |
| Max Dynamic Impedance | 400 Ω at 250 mA - limits output voltage variation under changing load current, critical for stable reference performance. |
| Max Reverse Leakage | 0.01 µA at 45.6 V - ensures negligible current draw in standby, preserving system efficiency in low-power modes. |
| Temp Coefficient αVZ | +0.100 %/°C - predictable positive drift allows compensation in temperature-critical analog circuits. |
| Power Dissipation | 500 mW at 25 °C - supports robust operation in military-grade power rails with linear derating to zero at 175 °C. |
| Junction Temp Range | -65 °C to +175 °C - enables deployment in extreme-environment avionics, downhole tools, and space-qualified electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction, 0.2 g mass, and cathode indicated by color band. Leads are tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in Zener configuration; must be negative relative to cathode during regulation. |
| Cathode | Zener breakdown terminal | Banded end; connected to higher-potential node; establishes regulated voltage drop when reverse-biased above 60 V. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for mission-critical systems requiring traceable lot control and screening per military standards. |
| Metallurgical bond construction | Eliminates interfacial voids to reduce microphonics and long-term parameter drift in vibration-prone environments. |
| Low noise density | ≤1 µV/√Hz at 60 V - preserves signal integrity in precision analog references and sensor excitation circuits. |
| Hermetic glass sealing | Prevents moisture ingress and corrosion, ensuring parametric stability over 20+ years in sealed enclosures. |
| Radiation hardness | Inherent tolerance to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for low-earth orbit applications. |
Applications
| Avionics Power Regulation | Satellite Voltage Reference |
|---|---|
Use Scenario: Regulating +28 V primary bus in airborne flight control computers where input transients exceed 100 V. IC Role / Device Role / Timing Role: Zener diode providing stable 60 V clamp and reference for error amplifier feedback network. Use Value: 1% tolerance and -65 °C to +175 °C operation ensure consistent regulation across altitude and thermal cycling. | Use Scenario: Generating precision bias voltage for CMOS image sensor readout circuitry on LEO microsatellites. IC Role / Device Role / Timing Role: Voltage reference element in low-noise, radiation-tolerant analog front-end design. Use Value: ≤1 µV/√Hz noise density and inherent TID hardness maintain SNR and calibration stability over mission lifetime. |
| Downhole Instrumentation | Military Radar Bias Supply |
Use Scenario: Stabilizing bias voltage for piezoelectric transducer amplifiers in oil/gas well logging tools operating at 150 °C ambient. IC Role / Device Role / Timing Role: High-temperature Zener reference enabling accurate gain calibration of analog signal chains. Use Value: Linear derating to zero at +175 °C and +0.100 %/°C αVZ allow predictable compensation in closed-loop calibration algorithms. | Use Scenario: Providing regulated gate drive voltage for GaN RF power amplifiers in ground-based radar transmitters. IC Role / Device Role / Timing Role: Clamping diode protecting amplifier bias rails from switching-induced voltage spikes. Use Value: 400 Ω dynamic impedance and 500 mW rating absorb transient energy while maintaining <100 mV regulation deviation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4128US-1 | Same 60 V, 1% Zener voltage but in surface-mount DO-213AA package; no axial leads. | Requires PCB redesign for SMT assembly; eliminates lead inductance for high-frequency clamping. | Select when board space is constrained and reflow compatibility is required over through-hole reliability. |
| JANTXV1N4128D | Identical electrical specs and DO-35 package, but qualified to JANTXV level with extended screening and tighter lot traceability. | Required for programs mandating JANTXV-level documentation and failure analysis reporting. | Select when contractual requirements specify JANTXV qualification beyond JAN-level baseline reliability. |
Compared with JAN1N4128D-1, 1N4128US-1 offers identical regulation performance in a smaller footprint but sacrifices axial-leaded mechanical robustness, while JANTXV1N4128D adds screening rigor without altering electrical behavior-making it ideal for programs where auditability outweighs cost sensitivity.
Availability
JAN1N4128D-1 is available at Aetrix Electronics and suitable for avionics power regulation, satellite voltage reference, and downhole instrumentation requiring stable component supply with full MIL-PRF-19500 traceability.
Supply support for JAN1N4128D-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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4128D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in harsh-environment power systems where parametric stability and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance for JAN1N4128D-1?
JAN1N4128D-1 has a nominal Zener voltage of 60.0 V with ±1% tolerance, as indicated by the "D" suffix in its nomenclature per Microsemi's part numbering convention. This tight tolerance is verified at 250 mA test current and ensures minimal initial calibration effort in precision reference designs.
Does JAN1N4128D-1 meet MIL-PRF-19500/435 requirements?
Yes, JAN1N4128D-1 is qualified to JAN level per MIL-PRF-19500/435, including screening for high-reliability applications. Its qualification covers electrical testing, environmental stress screening, and lot traceability-fully documented in Microsemi's T4-LDS-0245-2 specification sheet.
What is the maximum reverse leakage current for JAN1N4128D-1?
JAN1N4128D-1 specifies a maximum reverse leakage current (IR) of 0.01 µA at VR = 45.6 V, measured at 25 °C. This ultra-low leakage supports energy-efficient standby operation in battery-backed systems and precision analog circuits where parasitic current must be minimized.
Can JAN1N4128D-1 be used in surface-mount designs?
No-JAN1N4128D-1 uses the axial-leaded DO-35 (DO-204AH) package and is not compatible with SMT assembly. For surface-mount equivalents, consider 1N4128US-1 in DO-213AA or 1PMT4128 in DO-216, both sharing identical 60 V/1% Zener characteristics but differing in mechanical form factor.
What is the temperature coefficient of JAN1N4128D-1?
JAN1N4128D-1 has a temperature coefficient (αVZ) of +0.100 %/°C, indicating a predictable positive drift in Zener voltage with rising temperature. This value is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0245-2 datasheet and enables accurate thermal compensation in reference circuits.
JAN1N4128D-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):
- 60 V
- Tolerance:
- ±1%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 400 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 45.6 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)
JAN1N4128D-1 FAQ
1.How can I place an order for JAN1N4128D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4128D-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 JAN1N4128D-1 reliable?
The price and inventory of JAN1N4128D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4128D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4128D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4128D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4128D-1?
JAN1N4128D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4128D-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 JAN1N4128D-1?
For technical support, including JAN1N4128D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4128D-1 requirements.
6.How does Aetrix verify that JAN1N4128D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4128D-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 JAN1N4128D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4128D-1?
All JAN1N4128D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4128D-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 JAN1N4128D-1 part is unused and in its original packaging.
Return procedure for JAN1N4128D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4128D-1 Tags
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