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Microchip Technology JAN1N4129C-1/TR
- Part No.:
- JAN1N4129C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4129C-1/TR.pdf
- Description:
- DIODE ZENER 62V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,189
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Product details
Overview
JAN1N4129C-1/TR from Microsemi is a 500 mW, 62 V metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435, with ±2% voltage tolerance, 500 Ω max dynamic impedance at 250 mA, and 1 μV/√Hz noise density - used for precision voltage regulation in radiation-hardened aerospace power supplies.
For engineers reviewing the JAN1N4129C-1/TR datasheet, JAN1N4129C-1/TR pinout, JAN1N4129C-1/TR application, or JAN1N4129C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), JANS qualification status, DO-35 axial-leaded hermetic packaging, thermal resistance (250 °C/W junction-to-lead), and low-noise performance below 1 μV/√Hz at 62 V.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 62 V at 250 mA test current, exhibiting a positive temperature coefficient of +0.100 %/°C and maximum reverse leakage of 10 nA at 47.1 V. Its metallurgical bond construction ensures stable regulation across -65 °C to +175 °C junction temperature range.
The JAN1N4129C-1/TR delivers 500 mW average power dissipation with linear derating from 500 mW at 25 °C ambient to zero at 175 °C, and features minimal capacitance (<1.5 pF typical) and RoHS-compliant matte-tin plating on commercial-grade variants - though this JAN-level part uses tin-lead plating per MIL-STD-750.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 62 V ±2% at 250 mA - defines precise regulation point for high-voltage reference circuits |
| Power Dissipation | 500 mW @ 25 °C, derated linearly to zero at 175 °C - sets maximum continuous thermal load in lead-mounted designs |
| Dynamic Impedance ZZT | 500 Ω max at 250 mA - determines output voltage stability under varying load current |
| Noise Density | 1 μV/√Hz @ 62 V - enables low-noise analog references in sensitive instrumentation |
| Reverse Leakage IR | 10 nA @ 47.1 V - ensures minimal quiescent current in high-impedance bias networks |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over temperature for system-level compensation |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extreme environments including space and military platforms |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by 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 during Zener operation; carries full regulator current in reverse bias |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; maintains 62 V reference relative to anode when reverse biased |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated reliability for spaceflight and nuclear-hardened systems with full lot traceability |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| 1 μV/√Hz noise density | Enables use in low-phase-noise oscillator biasing and precision ADC reference buffers |
| Hermetic DO-35 glass package | Prevents moisture ingress and parameter shift over 20+ year operational lifetimes |
| ±2% Zener tolerance (C grade) | Reduces need for post-calibration trimming in high-reliability power supply feedback loops |
Applications
| Avionics Power Regulation | Satellite Bus Voltage Reference |
|---|---|
Use Scenario: Regulating 62 V bus voltage in airborne radar transmitter power supplies under wide temperature swings. IC Role / Device Role / Timing Role: Zener diode providing stable shunt reference for error amplifier feedback network. Use Value: JANS qualification and -65 °C to +175 °C operation ensure uninterrupted regulation during rapid altitude-induced thermal transients. | Use Scenario: Establishing primary voltage reference for telemetry conditioning circuitry in LEO satellite payloads. IC Role / Device Role / Timing Role: Precision shunt regulator defining ADC input scaling and sensor excitation levels. Use Value: Radiation hardness per MicroNote 050 and 1 μV/√Hz noise enable accurate 16-bit data acquisition in high-radiation orbits. |
| Nuclear Instrumentation | Military Test Equipment |
Use Scenario: Biasing photomultiplier tube high-voltage supplies in radiation detection spectrometers. IC Role / Device Role / Timing Role: Stable 62 V reference setting gain in ultra-low-current charge amplifiers. Use Value: <10 nA reverse leakage prevents signal corruption in femtoampere-level current measurement paths. | Use Scenario: Calibrating portable RF power meters requiring traceable, long-term stable voltage references. IC Role / Device Role / Timing Role: Primary Zener standard in metrology-grade calibration subsystems. Use Value: ±2% tolerance and hermetic DO-35 packaging maintain calibration integrity over 10-year field service intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4129US-1 | Same 62 V Zener voltage and ±2% tolerance, but in surface-mount DO-213AA package | Requires PCB re-layout for SMT assembly; lacks axial-leaded mounting flexibility | Select when automated assembly and board space constraints outweigh need for through-hole serviceability |
| JANTXV1N4129C-1 | Identical electrical specs and DO-35 package, but qualified to JANTXV level (not JANS); lower screening rigor | Approved for high-reliability ground systems but not certified for flight hardware per MIL-PRF-19500/435 Table I | Select for cost-sensitive defense electronics where full JANS testing is not mandated |
Compared with JAN1N4129C-1/TR, the 1N4129US-1 offers SMT compatibility at the expense of axial mounting and JANS qualification, while JANTXV1N4129C-1 reduces cost and test burden but excludes spaceflight use - making JAN1N4129C-1/TR the sole choice for mission-critical radiation-hardened applications.
Availability
JAN1N4129C-1/TR is available at Aetrix Electronics and suitable for avionics power regulation, satellite bus voltage reference, and nuclear instrumentation requiring stable component supply with full MIL-PRF-19500/435 traceability.
Supply support for JAN1N4129C-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 analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4129C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for precision voltage regulation in radiation-intensive, thermally extreme, and long-lifecycle systems.
FAQ
What is the Zener voltage tolerance of JAN1N4129C-1/TR?
JAN1N4129C-1/TR has a Zener voltage tolerance of ±2%, denoted by the "C" in its part number per Microsemi's nomenclature. This tolerance applies to its nominal 62 V Zener voltage measured at 250 mA test current and 25 °C ambient temperature, and is verified under MIL-PRF-19500/435 screening for JAN-level devices.
Is JAN1N4129C-1/TR qualified to JANS level?
Yes, JAN1N4129C-1/TR is qualified to JANS level per MIL-PRF-19500/435, the highest reliability tier for military and space applications. This includes full lot traceability, radiation hardness validation per MicroNote 050, and extended environmental stress screening - distinguishing it from JANTX or JANTXV variants of the same base part.
What is the maximum reverse leakage current for JAN1N4129C-1/TR?
The maximum reverse leakage current (IR) for JAN1N4129C-1/TR is 10 nA at 47.1 V (75% of nominal 62 V Zener voltage), as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This low leakage supports high-impedance bias networks in precision analog circuits using JAN1N4129C-1/TR.
Does JAN1N4129C-1/TR have RoHS compliance?
No, JAN1N4129C-1/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (suffix "e3") are available only for commercial-grade parts; JAN-level devices like JAN1N4129C-1/TR use tin-lead plating per MIL-STD-750 and are exempt from RoHS requirements due to their high-reliability military/space application scope.
What is the thermal resistance junction-to-lead for JAN1N4129C-1/TR?
The thermal resistance junction-to-lead (RθJL) for JAN1N4129C-1/TR is 250 °C/W when measured with 3/8 inch (10 mm) lead length from the body, as stated in the Maximum Ratings table. This value governs heat transfer efficiency in lead-mounted configurations and informs derating calculations for sustained 500 mW operation.
JAN1N4129C-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):
- 62 V
- Tolerance:
- ±2%
- 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)
JAN1N4129C-1/TR FAQ
1.How can I place an order for JAN1N4129C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4129C-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 JAN1N4129C-1/TR reliable?
The price and inventory of JAN1N4129C-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 JAN1N4129C-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4129C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4129C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4129C-1/TR?
JAN1N4129C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4129C-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 JAN1N4129C-1/TR?
For technical support, including JAN1N4129C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4129C-1/TR requirements.
6.How does Aetrix verify that JAN1N4129C-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4129C-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 JAN1N4129C-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4129C-1/TR?
All JAN1N4129C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4129C-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 JAN1N4129C-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4129C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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