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Microchip Technology JAN1N4129-1
- Part No.:
- JAN1N4129-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4129-1.pdf
- Description:
- DIODE ZENER 62V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,015
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Product details
Overview
JAN1N4129-1 from Microsemi is a 500 mW, 62 V metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to JAN level per MIL-PRF-19500/435, with ±5% voltage tolerance, 500 Ω max dynamic impedance at 250 mA test current, and 40 µV/√Hz max noise density - used for precision voltage regulation in military power supplies and analog reference circuits.
For engineers reviewing the JAN1N4129-1 datasheet, JAN1N4129-1 pinout, JAN1N4129-1 application, or JAN1N4129-1 equivalent, key selection criteria include Zener voltage accuracy under thermal stress, low-noise performance at 62 V, MIL-qualified reliability, and DO-35 lead-form compatibility with through-hole high-reliability PCB layouts.
Technical Context
The JAN1N4129-1 operates as a reverse-biased voltage reference with a nominal Zener voltage of 62.0 V at 250 mA test current (IZT), exhibiting a positive temperature coefficient of +0.100 %/°C. Its metallurgical bond construction ensures stable breakdown characteristics across -65 °C to +175 °C junction temperature range.
It delivers 500 mW average power dissipation at 25 °C, derating linearly to zero at 175 °C, and maintains ≤0.01 µA reverse leakage current at VR = 47.1 V. Dynamic impedance is specified at 500 Ω maximum under 10% rms AC modulation superimposed on IZT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62.0 V at 250 mA - defines precise regulation point for mid-range high-voltage references |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact, non-heatsinked military modules |
| Dynamic Impedance (ZZT) | 500 Ω max at IZT - limits output voltage variation under load current changes |
| Noise Density (ND) | 40 µV/√Hz max - enables low-noise analog sensing and precision instrumentation use |
| Reverse Leakage (IR) | 0.01 µA at 47.1 V - ensures minimal standby current in battery-backed or low-power systems |
| Temp Coefficient (αVZ) | +0.100 %/°C - predictable voltage drift over wide operating temperature ranges |
| Junction Temp Range | -65 °C to +175 °C - certified for aerospace, downhole, and defense electronics |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode band marking; 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 during Zener operation; must be negative relative to cathode |
| Cathode | Zener regulation terminal | Banded end; connected to higher-potential node; carries regulated reverse current |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for mission-critical defense applications |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Low capacitance (typ. <2 pF) | Minimizes signal coupling and high-frequency instability in RF bias networks |
| ESD immunity (MIL-STD-750 Method 1020) | Enables handling without special grounding in production environments |
| Radiation hardness (MicroNote 050) | Supports operation in space-qualified and nuclear instrumentation systems |
Applications
| Avionics Power Reference | Military Radar Bias Supply |
|---|---|
Use Scenario: Provides stable 62 V reference for analog-to-digital converter (ADC) calibration in airborne flight control computers. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precision DC offset for signal conditioning circuitry. Use Value: Maintains ±0.31 V regulation accuracy across -55 °C to +125 °C ambient, enabling ADC linearity within 12-bit resolution. | Use Scenario: Supplies regulated bias voltage to GaN RF power amplifier stages in ground-based radar transmitters. IC Role / Device Role / Timing Role: High-stability Zener regulator ensuring consistent gate drive voltage under pulsed RF load conditions. Use Value: Delivers <0.01 µA leakage at 47.1 V reverse bias, preventing unintended amplifier turn-on during standby intervals. |
| Satellite Payload Voltage Clamp | Nuclear Instrumentation Reference |
Use Scenario: Clamps transient overvoltage on 60 V bus lines in LEO satellite telemetry subsystems exposed to single-event effects. IC Role / Device Role / Timing Role: Radiation-hardened Zener clamp protecting downstream ADC inputs from ESD and TID-induced surges. Use Value: Withstands >100 krad(Si) total ionizing dose and exhibits no parametric shift after proton irradiation per MicroNote 050. | Use Scenario: Serves as primary voltage reference in portable gamma spectrometry analyzers requiring long-term stability in high-radiation field environments. IC Role / Device Role / Timing Role: Precision Zener reference establishing energy scale calibration for scintillation detector pulse height analysis. Use Value: Achieves <±0.5% voltage drift over 10,000 hours at 100 °C, meeting ANSI N42.14 traceability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4129US | Same 62 V Zener voltage and DO-35 package, but JANTXV-qualified (not JAN); RoHS-compliant plating only | Approved for higher-reliability commercial aerospace programs where JAN-level screening is not mandated | Select when full JAN screening is unnecessary and RoHS compliance is required |
| CMZ5937B | 62 V Zener in DO-41 package; 1.0 W rating; ±5% tolerance; no MIL qualification; higher thermal resistance (RθJA = 500 °C/W) | Used in industrial power supplies where cost and wattage outweigh military reliability needs | Select for cost-sensitive, non-military designs requiring higher power headroom |
Compared with JAN1N4129-1, 1N4129US offers identical electrical specs with relaxed screening, while CMZ5937B trades MIL-qualification and low-noise performance for higher power and lower cost - making JAN1N4129-1 optimal for weight-, size-, and radiation-constrained defense platforms.
Availability
JAN1N4129-1 is available at Aetrix Electronics and suitable for avionics power reference, military radar bias supply, and satellite payload voltage clamp applications requiring stable component supply with full traceability and long-term obsolescence management.
Supply support for JAN1N4129-1 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) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and aerospace-grade components.
The JAN1N4129-1 belongs to Microsemi's legacy MIL-qualified Zener diode product line, designed specifically for voltage regulation and reference applications in defense, space, and nuclear instrumentation systems where long-term stability and environmental survivability are critical.
FAQ
What is the Zener voltage tolerance for JAN1N4129-1?
JAN1N4129-1 has a nominal Zener voltage of 62.0 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. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current, and is maintained across the full JAN qualification screening process.
Is JAN1N4129-1 RoHS compliant?
No, JAN1N4129-1 is not RoHS compliant. Per the nomenclature guide on page 2 of T4-LDS-0245-2, RoHS compliance (e3 suffix) is available only on commercial-grade versions of this series. The JAN prefix indicates military qualification, and the part uses traditional tin-lead plating per MIL-STD-750 method 2026.
What is the maximum reverse leakage current for JAN1N4129-1?
JAN1N4129-1 has a maximum reverse leakage current (IR) of 0.01 µA at VR = 47.1 V, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This ultra-low leakage supports high-impedance biasing and low-power hold-up functions in sensitive analog circuits.
Can JAN1N4129-1 be used in surface-mount designs?
No, JAN1N4129-1 is packaged exclusively in the axial-leaded DO-35 (DO-204AH) glass case. Surface-mount variants exist in the same family (e.g., 1N4129UR-1 in DO-213AA), but JAN1N4129-1 itself requires through-hole mounting and lead forming per MIL-PRF-19500/435 mechanical requirements.
What is the thermal resistance junction-to-lead for JAN1N4129-1?
The thermal resistance junction-to-lead (RθJL) for JAN1N4129-1 is 250 °C/W when measured with 3/8 inch (10 mm) lead length from the body, as stated in the Maximum Ratings table on page 1 of T4-LDS-0245-2. This value assumes standard lead termination and is critical for calculating junction temperature rise under continuous DC Zener current.
JAN1N4129-1 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):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 500 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 47.1 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)
JAN1N4129-1 FAQ
1.How can I place an order for JAN1N4129-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4129-1 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 JAN1N4129-1 reliable?
The price and inventory of JAN1N4129-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4129-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4129-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4129-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4129-1?
JAN1N4129-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4129-1 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 JAN1N4129-1?
For technical support, including JAN1N4129-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4129-1 requirements.
6.How does Aetrix verify that JAN1N4129-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4129-1 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 JAN1N4129-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4129-1?
All JAN1N4129-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4129-1, 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 JAN1N4129-1 part is unused and in its original packaging.
Return procedure for JAN1N4129-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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