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Microchip Technology JAN1N4129C-1
- Part No.:
- JAN1N4129C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4129C-1.pdf
- Description:
- DIODE ZENER 62V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,577
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Product details
Overview
JAN1N4129C-1 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 0.01 µA max reverse leakage at 47.1 V. It serves as a precision voltage reference in high-reliability military power regulation circuits.
For engineers reviewing the JAN1N4129C-1 datasheet, JAN1N4129C-1 pinout, JAN1N4129C-1 application, or JAN1N4129C-1 equivalent, key selection criteria include Zener voltage tolerance (±2%), JANS qualification status, DO-35 axial-leaded hermetic packaging, noise density (≤1 µV/√Hz), and thermal resistance (250 °C/W junction-to-lead).
Technical Context
This device operates in reverse breakdown mode with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its metallurgical bond construction ensures stable voltage regulation across -65 °C to +175 °C junction temperature range and inherent radiation hardness per MicroNote 050.
It delivers 62 V nominal regulation at 250 mA test current (IZT), with dynamic impedance measured at 10% AC modulation superimposed on IZT, and exhibits minimal capacitance (<1.5 pF typical) and low noise density - critical for low-noise analog references and precision biasing in avionics and space-grade systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±2% at 250 mA - enables precise mid-range voltage reference with tight tolerance for calibration-critical circuits. |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact, conduction-cooled military PCB layouts with linear derating to zero at 175 °C. |
| Dynamic Impedance (ZZT) | 500 Ω max at 250 mA - ensures minimal output voltage variation under load transients in regulated supply feedback paths. |
| Reverse Leakage (IR) | 0.01 µA max at 47.1 V - guarantees negligible standby current in high-impedance sensing and reference divider networks. |
| Noise Density (ND) | ≤1 µV/√Hz - provides ultra-low noise performance essential for precision instrumentation and ADC reference buffers. |
| Temp Coefficient (αVZ) | +0.100 %/°C - allows predictable, monotonic drift compensation in temperature-stable reference designs. |
| Junction Temp Range | -65 °C to +175 °C - meets extended environmental requirements for aerospace, missile, and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead or RoHS-compliant matte-tin plating; cathode indicated by black band; weight ≈0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink in reverse bias | Connected to system ground or lower-potential node; carries full Zener current during regulation. |
| Cathode (banded end) | Regulated output terminal | Held positive relative to anode; supplies stable 62 V reference to load or feedback network. |
Key Features
| Feature | Design Value |
|---|---|
| Internal metallurgical bond | Eliminates interfacial delamination risk under thermal cycling and mechanical shock - critical for mission-critical reliability. |
| JANS qualification per MIL-PRF-19500/435 | Validated screening for radiation hardness, burn-in, and life testing - required for Class S space applications. |
| Low noise density (≤1 µV/√Hz) | Enables use in high-resolution analog front-ends without additional filtering or post-regulation conditioning. |
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift - maintains ±2% tolerance stability over 20+ year service life. |
| Non-ESD-sensitive (MIL-STD-750 Method 1020) | Allows handling and assembly without special ESD controls - reduces manufacturing overhead in defense production lines. |
Applications
| Avionics Power Reference | Missile Guidance Bias Supply |
|---|---|
Use Scenario: Provides stable 62 V reference for analog-to-digital converters monitoring engine parameters in fighter jet flight control systems. IC Role / Device Role / Timing Role: Zener diode acting as primary voltage reference in isolated DC-DC converter feedback loop. Use Value: ±2% tolerance and <1 µV/√Hz noise ensure sub-LSB ADC accuracy across -55 °C to +125 °C operational envelope. | Use Scenario: Supplies precision bias voltage to op-amps in inertial measurement unit (IMU) signal conditioning circuitry. IC Role / Device Role / Timing Role: High-reliability Zener regulator maintaining stable operating point for low-drift amplifiers. Use Value: JANS qualification and -65 °C to +175 °C junction rating guarantee uninterrupted function during rapid thermal transients in launch phase. |
| Satellite Payload Voltage Calibration | Nuclear Instrumentation Reference |
Use Scenario: Calibrates photodiode amplifier gain in Earth observation satellite optical sensors before orbital deployment. IC Role / Device Role / Timing Role: Primary reference source for factory-trimmed analog signal chains requiring traceable metrology. Use Value: Metallurgical bond and hermetic seal preserve calibration integrity over 15-year mission lifetime with no parameter shift. | Use Scenario: Sets threshold voltage for radiation detector pulse-height analyzers in nuclear reactor monitoring systems. IC Role / Device Role / Timing Role: Radiation-hardened Zener providing invariant reference despite neutron flux exposure. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating - reduces system mass and complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N4129-1 | Same 62 V nominal, but ±5% tolerance (vs. ±2% for JAN1N4129C-1) | Acceptable where tighter tolerance not required; lower cost for non-critical biasing | Select when budget constraints outweigh precision needs and JANS qualification remains mandatory |
| 1N4129UR-1 | Same electrical specs, but DO-213AA surface-mount package (vs. DO-35 axial) | Required for automated SMT assembly; unsuitable for through-hole or high-vibration mechanical mounting | Choose only when board-level automation and space constraints justify trade-off in mechanical robustness |
Compared with JAN1N4129-1 and 1N4129UR-1, the JAN1N4129C-1 uniquely combines JANS qualification, ±2% tolerance, and DO-35 axial packaging - making it the sole option for legacy-replacement, high-precision, vibration-resistant military power references.
Availability
JAN1N4129C-1 is available at Aetrix Electronics and suitable for avionics power reference, missile guidance bias supply, and satellite payload voltage calibration requiring stable component supply under extended temperature, radiation, and reliability constraints.
Supply support for JAN1N4129C-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 JAN1N4129C-1 belongs to Microsemi's MIL-PRF-19500/435-qualified Zener diode family, engineered specifically for precision voltage regulation in defense, space, and nuclear instrumentation systems where long-term stability and environmental survivability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JAN1N4129C-1?
JAN1N4129C-1 has a nominal Zener voltage of 62 V with a tolerance of ±2%, as indicated by the "C" suffix in the part number per Microsemi's nomenclature. This tighter tolerance enables higher-accuracy voltage referencing compared to standard ±5% variants like JAN1N4129-1, and is verified per MIL-PRF-19500/435 test requirements.
Is JAN1N4129C-1 qualified to JANS level?
Yes, JAN1N4129C-1 is fully qualified to JANS level per MIL-PRF-19500/435, including radiation hardness testing, extended burn-in, and lot acceptance testing. This qualification is confirmed in the T4-LDS-0245-2 datasheet and applies specifically to the JAN1N4129C-1 variant, not commercial or lower-reliability grades.
What package type does JAN1N4129C-1 use?
JAN1N4129C-1 uses the DO-35 (DO-204AH) axial-leaded, hermetically sealed glass package. Dimensions comply with JEDEC standards: body diameter 1.42–2.29 mm, body length 3.56–5.08 mm, and lead length 25.4–38.1 mm. The cathode is marked by a black band on the glass envelope.
What is the maximum reverse leakage current for JAN1N4129C-1?
JAN1N4129C-1 specifies a maximum reverse leakage current (IR) of 0.01 µA at VR = 47.1 V (80% of nominal VZ), measured at 25 °C. This ultra-low leakage supports high-impedance reference networks and minimizes error in precision divider circuits used with the JAN1N4129C-1.
Does JAN1N4129C-1 require special ESD handling?
No, JAN1N4129C-1 is non-sensitive to ESD per MIL-STD-750 Method 1020, as confirmed in the official datasheet. Its metallurgically bonded structure and glass encapsulation eliminate gate oxide vulnerability, allowing standard handling without ESD workstations or wrist straps in production environments.
JAN1N4129C-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:
- ±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 FAQ
1.How can I place an order for JAN1N4129C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4129C-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 JAN1N4129C-1 reliable?
The price and inventory of JAN1N4129C-1 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 is usually 5 days.
3.What payment methods are accepted for JAN1N4129C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4129C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4129C-1?
JAN1N4129C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4129C-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 JAN1N4129C-1?
For technical support, including JAN1N4129C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4129C-1 requirements.
6.How does Aetrix verify that JAN1N4129C-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4129C-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 JAN1N4129C-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4129C-1?
All JAN1N4129C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4129C-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 JAN1N4129C-1 part is unused and in its original packaging.
Return procedure for JAN1N4129C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4129C-1 Tags
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