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Microchip Technology JAN1N4129D-1/TR
- Part No.:
- JAN1N4129D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4129D-1/TR.pdf
- Description:
- DIODE ZENER 62V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,250
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Product details
Overview
JAN1N4129D-1/TR from Microsemi is a 62 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace power conditioning and precision reference circuits.
For engineers reviewing the JAN1N4129D-1/TR datasheet, JAN1N4129D-1/TR pinout, JAN1N4129D-1/TR application, or JAN1N4129D-1/TR equivalent, key selection criteria include Zener voltage tolerance (±1%), noise density (≤1 µV/√Hz), junction temperature range (–65 °C to +175 °C), and military qualification level (JANS).
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 low dynamic impedance (500 Ω max) and minimal capacitance (typ. <1 pF at 62 V). Its metallurgical bond construction ensures stable regulation across wide current (1–40 mA) and temperature (–65 °C to +175 °C) ranges.
Designed for high-reliability environments, it meets MIL-PRF-19500/435 requirements for JAN, JANTX, JANTXV, and JANS levels. The DO-35 axial-leaded glass package provides hermetic sealing, radiation hardness per MicroNote 050, and ESD immunity per MIL-STD-750 method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 62 V ±1% at 250 mA - enables precise voltage clamping in regulated power supplies requiring tight tolerance |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation in compact, unheatsinked designs with linear derating to zero at 175 °C |
| Dynamic Impedance ZZT | ≤500 Ω at 250 mA - ensures minimal output voltage variation under load transients |
| Noise Density | ≤1 µV/√Hz - critical for low-noise analog references and instrumentation front-ends |
| Reverse Leakage IR | ≤0.01 µA at 47.1 V - guarantees negligible current draw in standby or high-impedance bias networks |
| Temp. Coefficient αVZ | +0.100 %/°C - allows predictable drift compensation in temperature-stable reference designs |
| Junction Temp. Range | –65 °C to +175 °C - validated for extended operation in space-grade and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end must be biased positive relative to anode for Zener regulation. Hermetically sealed, RoHS-compliant matte-tin plating on commercial versions only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in regulation loop |
| Cathode (banded) | Zener regulation terminal | Biasing this terminal positive relative to anode establishes breakdown conduction and stable 62 V reference |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock in aerospace deployments |
| JANS-level qualification | Fully screened to MIL-PRF-19500/435 for spaceflight and nuclear-hardened systems |
| Low noise density | ≤1 µV/√Hz at 62 V enables use in metrology-grade voltage references without external filtering |
| 1% Zener tolerance | Reduces need for post-assembly trimming in precision power supply feedback networks |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for LEO/MEO satellite power rails |
Applications
| Avionics Power Conditioning | Satellite Voltage Reference |
|---|---|
Use Scenario: Regulating auxiliary 28 V DC bus in flight control computers where input ripple exceeds ±5 V. IC Role / Device Role / Timing Role: Zener diode providing shunt-based overvoltage protection and precision clamp. Use Value: 62 V rating allows safe margin above 28 V nominal rail while 1% tolerance ensures consistent trip threshold across units. | Use Scenario: Generating stable 62 V reference for ADC biasing in star tracker telemetry subsystems. IC Role / Device Role / Timing Role: Primary voltage reference element in low-drift, radiation-tolerant analog signal chain. Use Value: ≤1 µV/√Hz noise density and JANS qualification ensure measurement integrity over 15-year orbital lifetime. |
| Nuclear Instrumentation | Downhole Logging Electronics |
Use Scenario: Biasing photomultiplier tube (PMT) anodes in gamma-ray spectrometers deployed in reactor containment zones. IC Role / Device Role / Timing Role: High-voltage, low-noise Zener regulator maintaining PMT gain stability. Use Value: –65 °C to +175 °C junction range and inherent radiation hardness support operation in high-dose, high-temp environments. | Use Scenario: Providing regulated 62 V supply for piezoelectric sensor excitation in oil/gas well logging tools operating at 175 °C ambient. IC Role / Device Role / Timing Role: Shunt regulator maintaining excitation voltage despite battery voltage decay and thermal stress. Use Value: Linear derating from 500 mW at 25 °C to full-rated operation at 175 °C enables uninterrupted function without heatsinking. |
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, 1% spec but in DO-213AA surface-mount package; no axial leads | Requires PCB re-layout for SMT assembly; unsuitable for through-hole prototyping or wire-wrap | Select when automated assembly and board space constraints outweigh manual serviceability needs |
| JANS1N4129D-1 | Identical electrical specs and DO-35 package; differs only in screening level (JANS vs JAN) | Higher screening cost and longer lead time; required only for Class S or NASA Class B missions | Choose JAN1N4129D-1/TR for Class K or MIL-STD-883-compliant programs where JANS is not mandated |
Compared with 1N4129US-1 and JANS1N4129D-1, the JAN1N4129D-1/TR delivers identical regulation performance in a tape-and-reel–ready axial package optimized for high-mix defense production and repair logistics, balancing qualification rigor with procurement flexibility.
Availability
JAN1N4129D-1/TR is available at Aetrix Electronics and suitable for avionics power conditioning, satellite voltage reference, and nuclear instrumentation requiring stable component supply with guaranteed long-term continuity.
Supply support for JAN1N4129D-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JAN1N4129D-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parametric stability, radiation tolerance, and extended temperature operation are non-negotiable.
FAQ
What is the Zener voltage tolerance of JAN1N4129D-1/TR?
JAN1N4129D-1/TR has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its nomenclature. This tight tolerance is achieved through post-process screening and is specified at 250 mA test current and 25 °C ambient. The 62 V nominal value remains stable across its full operating temperature range (–65 °C to +175 °C) with a temperature coefficient of +0.100 %/°C.
Is JAN1N4129D-1/TR qualified to JANS level?
No, JAN1N4129D-1/TR is qualified to JAN level per MIL-PRF-19500/435. The "JAN" prefix indicates compliance with baseline military screening requirements. For JANS qualification, the part number would be JANS1N4129D-1 - which undergoes additional lot acceptance testing including burn-in, life test, and radiation exposure per MIL-STD-883.
What does the "TR" suffix mean in JAN1N4129D-1/TR?
"TR" indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JAN1N4129D-1/TR contains 2,000 units per reel and features RoHS-compliant matte-tin plating on leads. This format supports high-volume production while preserving the device's hermetic DO-35 glass package integrity and military qualification status.
Can JAN1N4129D-1/TR replace JAN1N4129C-1 in existing designs?
Yes, JAN1N4129D-1/TR can directly replace JAN1N4129C-1, as both share identical Zener voltage (62 V), package (DO-35), and power rating (500 mW). The only difference is tolerance: "C" denotes ±2%, while "D" denotes ±1%. Substituting the D-version improves reference accuracy without layout or thermal changes, provided the tighter tolerance aligns with system specification.
What is the maximum reverse leakage current for JAN1N4129D-1/TR?
The maximum reverse leakage current (IR) for JAN1N4129D-1/TR is 0.01 µA at 47.1 V (75% of VZ). This ultra-low leakage ensures minimal power loss in high-impedance bias networks and preserves accuracy in precision reference circuits where even nanoamp-level currents affect stability.
JAN1N4129D-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:
- ±1%
- 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)
JAN1N4129D-1/TR FAQ
1.How can I place an order for JAN1N4129D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4129D-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 JAN1N4129D-1/TR reliable?
The price and inventory of JAN1N4129D-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 JAN1N4129D-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4129D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4129D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4129D-1/TR?
JAN1N4129D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4129D-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 JAN1N4129D-1/TR?
For technical support, including JAN1N4129D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4129D-1/TR requirements.
6.How does Aetrix verify that JAN1N4129D-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4129D-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 JAN1N4129D-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4129D-1/TR?
All JAN1N4129D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4129D-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 JAN1N4129D-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4129D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4129D-1/TR Tags
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