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Microchip Technology JAN1N4129-1/TR
- Part No.:
- JAN1N4129-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4129-1/TR.pdf
- Description:
- DIODE ZENER 62V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,801
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Product details
Overview
JAN1N4129-1/TR from Microsemi is a 500 mW, 62 V, ±5% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JAN level per MIL-PRF-19500/435. It delivers stable voltage regulation with 500 Ω dynamic impedance at 250 mA test current, 40 µV/√Hz noise density, and operates across –65 °C to +175 °C for high-reliability power supply reference and overvoltage protection in aerospace avionics.
For engineers reviewing the JAN1N4129-1/TR datasheet, JAN1N4129-1/TR pinout, JAN1N4129-1/TR application, or JAN1N4129-1/TR equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (250 °C/W junction-to-lead), MIL-qualified reliability level, low-noise performance above 6.8 V, and DO-35 mechanical compatibility with legacy through-hole designs.
Technical Context
This device functions as a precision shunt voltage regulator in reverse-biased operation, where the banded cathode terminal is held positive relative to the anode. Its metallurgical bond ensures low leakage (<10 nA at 0.75×VZ) and radiation hardness per MicroNote 050, supporting operation in harsh environments without parameter drift.
The 62 V nominal Zener voltage exhibits a +0.100 %/°C temperature coefficient, enabling predictable drift compensation in temperature-stable references. Power dissipation is linearly derated from 500 mW at 25 °C ambient to zero at 175 °C, with thermal resistance junction-to-lead specified at 250 °C/W for 10 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 62 V ±5% at 250 mA - defines regulated output voltage under nominal bias, critical for reference stability in feedback loops. |
| Power Dissipation PM(AV) | 500 mW @ TC = 25 °C - sets maximum continuous DC power handling before thermal shutdown or degradation. |
| Zener Impedance ZZT | 500 Ω @ IZT = 250 mA - determines AC regulation error and ripple rejection capability in analog references. |
| Noise Density ND | 40 µV/√Hz @ IZT = 250 mA - quantifies broadband voltage noise floor, essential for low-noise instrumentation references. |
| Temp Coefficient αVZ | +0.100 %/°C - enables predictable voltage drift vs. temperature, allowing passive compensation in precision circuits. |
| Reverse Leakage IR | 10 nA @ VR = 47.5 V - ensures minimal parasitic current in high-impedance bias networks and sensing paths. |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extended environmental conditions typical of military and space-grade systems. |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead plating; cathode indicated by black band; weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference Ground Node | Connected to system ground or lowest potential point; establishes return path for Zener current. |
| Cathode (banded end) | Regulated Output Terminal | Held at precise 62 V relative to anode during reverse conduction; supplies stable voltage to load or feedback network. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical Bond Construction | Eliminates interfacial voids and delamination risk, ensuring long-term parameter stability under thermal cycling and vibration. |
| MIL-PRF-19500/435 JAN Qualification | Validated screening for burn-in, temperature cycling, and hermeticity per military standard-required for flight-critical subsystems. |
| Low Capacitance (Typ. 2 pF) | Minimizes high-frequency coupling and phase shift in RF bias networks and fast-switching protection circuits. |
| Radiation Hardness | Inherent tolerance to total ionizing dose (TID) per Microsemi MicroNote 050-enables use in satellite power regulation without shielding. |
| ESD Immunity | Non-sensitive per MIL-STD-750 Method 1020-reduces handling risk during manual assembly and field repair. |
Applications
| Avionics Power Reference | Satellite Bus Voltage Monitor |
|---|---|
Use Scenario: Provides stable 62 V reference for ADC input scaling in aircraft engine control units operating across –55 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Shunt voltage reference regulating feedback node of isolated DC/DC converter output stage. Use Value: ±5% initial tolerance and +0.100 %/°C TC enable <±1.2% total error over full temperature range without calibration. | Use Scenario: Monitors 60 V bus voltage in LEO satellite power distribution unit with radiation exposure up to 100 krad(Si). IC Role / Device Role / Timing Role: Overvoltage clamp protecting downstream FET gate drivers and telemetry interface ICs. Use Value: Hermetic DO-35 package and inherent radiation hardness eliminate need for redundant clamping or shielding mass. |
| Ground-Based Radar Bias Supply | Tactical Radio Transmitter Regulator |
Use Scenario: Supplies fixed 62 V bias to GaN PA driver stages in mobile radar transmitters subject to shock/vibration per MIL-STD-810G. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining constant voltage despite 10–90% load step transients. Use Value: 500 Ω dynamic impedance limits output deviation to <310 mV during 100 mA transient steps, preserving amplifier linearity. | Use Scenario: Regulates local 62 V rail for SAW filter bias in handheld HF radios deployed in desert environments (–40 °C to +71 °C). IC Role / Device Role / Timing Role: Temperature-compensated voltage reference for analog front-end gain control loop. Use Value: Predictable +0.100 %/°C drift allows single-point factory calibration to hold accuracy across full operational envelope. |
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 electrical specs but in surface-mount DO-213AA package; no axial leads. | Requires PCB redesign for SMT placement; eliminates through-hole assembly but increases rework complexity. | Select when board space is constrained and automated SMT assembly is available. |
| JANTXV1N4129-1 | Identical DO-35 package and electrical parameters, but qualified to JANTXV level with enhanced screening (e.g., 100% lot testing, longer burn-in). | Required for Class H/V mission-critical systems where failure modes demand higher confidence than JAN level. | Select when program specification mandates JANTXV qualification for launch vehicle or strategic platform use. |
Compared with JAN1N4129-1/TR, 1N4129US-1 trades axial-mount compatibility for SMT footprint efficiency, while JANTXV1N4129-1 retains identical form/fit/function but adds verified reliability margin for life-critical deployments-neither is pin-compatible replacement without qualification review.
Availability
JAN1N4129-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite bus voltage monitor, and ground-based radar bias supply requiring stable component supply with full traceability and MIL-qualified documentation.
Supply support for JAN1N4129-1/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 JAN1N4129-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, designed specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term reliability outweigh cost sensitivity.
FAQ
What is the Zener voltage tolerance and test current for JAN1N4129-1/TR?
The JAN1N4129-1/TR has a nominal Zener voltage of 62 V with ±5% tolerance, measured at a Zener test current (IZT) of 250 mA. This tolerance reflects initial calibration accuracy under thermal equilibrium at 25 °C, and is consistent with JEDEC registration for the 1N4099–1N4135 series. The device maintains this specification across its qualified JAN reliability level.
Is JAN1N4129-1/TR RoHS compliant?
No, JAN1N4129-1/TR is not RoHS compliant. Per the Microsemi datasheet T4-LDS-0245-2, RoHS-compliant versions (suffix "e3") are available only for commercial-grade parts-not for JAN, JANTX, JANTXV, or JANS reliability levels. The JAN1N4129-1/TR uses traditional tin-lead plating to meet MIL-STD-750 solderability requirements and ensure long-term intermetallic stability.
What is the maximum power derating behavior of JAN1N4129-1/TR?
JAN1N4129-1/TR linearly derates from 500 mW starting at 25 °C ambient temperature, reaching zero dissipation at 175 °C. Derating follows a slope of –3.57 mW/°C. For example, at 100 °C ambient, maximum allowable power drops to 236 mW. This curve assumes mounting on FR4 with 4 mm² copper pads and 1 mm track width, per datasheet Figure 2.
Does JAN1N4129-1/TR have radiation hardness certification?
Yes, JAN1N4129-1/TR exhibits inherent radiation hardness as documented in Microsemi MicroNote 050. While not individually tested per MIL-STD-883 method 1019, its metallurgically bonded glass construction and process flow provide proven tolerance to total ionizing dose (TID) up to 100 krad(Si), making it suitable for low-earth orbit satellite power regulation without additional shielding.
What is the meaning of the "TR" suffix in JAN1N4129-1/TR?
"TR" denotes tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. JAN1N4129-1/TR contains the same die, package, and qualification as JAN1N4129-1 but is supplied in reel format. Microsemi specifies that tape-and-reel option requires factory consultation for minimum order quantities and carrier specifications.
JAN1N4129-1/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:
- ±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/TR FAQ
1.How can I place an order for JAN1N4129-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4129-1/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 JAN1N4129-1/TR reliable?
The price and inventory of JAN1N4129-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4129-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4129-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4129-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4129-1/TR?
JAN1N4129-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4129-1/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 JAN1N4129-1/TR?
For technical support, including JAN1N4129-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4129-1/TR requirements.
6.How does Aetrix verify that JAN1N4129-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4129-1/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 JAN1N4129-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4129-1/TR?
All JAN1N4129-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4129-1/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 JAN1N4129-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4129-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4129-1/TR Tags
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