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Microchip Technology JAN1N4624D-1
- Part No.:
- JAN1N4624D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4624D-1.pdf
- Description:
- DIODE ZENER 4.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,783
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Product details
Overview
JAN1N4624D-1 from Microsemi is a 500 mW, 4.7 V ±1% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4624D-1 datasheet, JAN1N4624D-1 pinout, JAN1N4624D-1 application, or JAN1N4624D-1 equivalent, key selection factors include its 1% Zener voltage tolerance, -0.050/+0.020 %/°C temperature coefficient, 1550 Ω dynamic impedance at 250 mA, 5.0 µA max reverse leakage at 3.0 V, and radiation-hardened hermetic DO-35 construction.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 4.7 V at 250 mA test current, exhibiting low noise density (1 µV/√Hz typical), minimal capacitance (~85 pF), and stable regulation across -65 °C to +175 °C junction temperature range.
Its metallurgical bond construction ensures mechanical robustness and long-term stability under thermal cycling and radiation exposure, while the axial-leaded DO-35 package supports through-hole mounting with tin-lead or RoHS-compliant matte-tin plating per MIL-STD-750 method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.7 V ±1% at 250 mA - enables precise reference generation in analog circuits requiring tight voltage stability. |
| Dynamic Impedance ZZT | 1550 Ω at 250 mA - determines regulation accuracy under varying load currents; lower values improve line/load regulation. |
| Max Reverse Current IR | 5.0 µA at 3.0 V - defines leakage-limited minimum operating current for reliable breakdown conduction. |
| Temp Coefficient αVZ | -0.050/+0.020 %/°C - indicates near-zero drift around room temperature, critical for temperature-sensitive references. |
| Noise Density ND | 1 µV/√Hz - supports low-noise analog signal conditioning where reference integrity affects ADC/DAC performance. |
| Power Dissipation PM(AV) | 500 mW - sets maximum continuous power handling before thermal derating begins at 50 °C ambient. |
| Junction Temp Range | -65 °C to +175 °C - qualifies use in extreme environments including space-grade and military avionics systems. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Hermetically sealed, weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during forward bias; reference ground node in shunt regulator configuration | Connected to system ground or lowest potential point; must handle full load current when regulating. |
| Cathode | Regulated output node; Zener breakdown occurs between cathode and anode | Banded end connects to unregulated input rail; provides stable 4.7 V reference relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and radiation, ensuring long-term parameter stability in mission-critical systems. |
| JANS-level qualification | Fulfills MIL-PRF-19500/435 requirements for spaceflight and nuclear-hardened applications with full lot traceability and screening. |
| 1% Zener voltage tolerance | Reduces need for post-production trimming in precision reference designs, lowering BOM cost and assembly complexity. |
| Low noise density (1 µV/√Hz) | Minimizes added noise in sensor front-ends and high-resolution data acquisition systems where reference noise couples into signal path. |
| Hermetic DO-35 packaging | Prevents moisture ingress and corrosion over decades of operation in humid or chemically aggressive environments. |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 4.7 V reference for error amplifiers in triple-redundant 28 V to ±15 V DC-DC converters on flight computers. IC Role / Device Role / Timing Role: Shunt voltage reference establishing feedback setpoint for isolated flyback controller ICs. Use Value: 1% tolerance and JANS qualification ensure consistent loop gain across temperature and radiation exposure, preventing converter instability. | Use Scenario: Biasing op-amps and setting thresholds in radiation-tolerant telemetry interface boards aboard LEO satellites. IC Role / Device Role / Timing Role: Precision voltage clamp protecting analog inputs from overvoltage transients while maintaining reference integrity. Use Value: Low noise density and hermetic sealing preserve signal fidelity in low-power telemetry chains exposed to vacuum and particle flux. |
| Nuclear Instrumentation Calibration | Tactical Radio RF Front-End Biasing |
Use Scenario: Calibrating gamma spectrometer ADC reference rails in field-deployable radiation detection units operating from -40 °C to +70 °C. IC Role / Device Role / Timing Role: Primary voltage standard for 16-bit SAR ADC reference buffers in portable spectroscopy modules. Use Value: -0.050/+0.020 %/°C tempco minimizes calibration drift across operational temperature range without active compensation. | Use Scenario: Establishing bias points for GaAs FET LNAs and mixer diodes in handheld HF/VHF transceivers subjected to vibration and thermal cycling. IC Role / Device Role / Timing Role: Stable DC bias source for RF semiconductor devices requiring repeatable gain and noise figure. Use Value: Metallurgical bond and DO-35 mechanical robustness prevent parameter shift during mechanical shock events common in mobile radio platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N4624US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical retention | Select when board space is constrained and automated assembly is used. |
| JANTXV1N4624D-1 | Identical Zener parameters and 1% tolerance, but qualified only to JANTXV level (not JANS); lower screening rigor | Approved for airborne but not spaceflight missions; excluded from Class S or Class K programs | Select when JANS qualification is not mandated and cost sensitivity is higher. |
Compared with JAN1N4624D-1, JAN1N4624US-1 trades axial-mount reliability for PCB area savings, while JANTXV1N4624D-1 reduces qualification cost and lead time at the expense of radiation hardness and extended temperature screening coverage.
Availability
JAN1N4624D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC converter feedback, and nuclear instrumentation calibration requiring stable component supply under extended temperature and radiation stress conditions.
Supply support for JAN1N4624D-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N46xx-1 series was designed specifically for military and space-grade voltage regulation, emphasizing radiation hardness, hermeticity, and parametric stability across extreme environmental profiles.
FAQ
What is the Zener voltage tolerance of JAN1N4624D-1?
JAN1N4624D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number per Microsemi's nomenclature. This means its actual VZ at 250 mA test current falls within 4.653 V to 4.747 V at 25 °C. The tighter tolerance eliminates need for external trimming in precision reference circuits and supports compliance with MIL-PRF-19500/435 screening requirements for JANS-level devices.
Is JAN1N4624D-1 suitable for space applications?
Yes, JAN1N4624D-1 is qualified to JANS level per MIL-PRF-19500/435, making it suitable for space applications. It undergoes full lot acceptance testing including radiation hardness assurance (RHA), burn-in, and extended temperature life testing. Its metallurgically bonded structure and hermetic DO-35 package provide inherent resistance to total ionizing dose (TID) and displacement damage, as documented in Microsemi MicroNote 050.
What is the maximum reverse leakage current for JAN1N4624D-1?
The maximum reverse leakage current (IR) for JAN1N4624D-1 is 5.0 µA at 3.0 V reverse voltage, per the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This low leakage ensures stable regulation onset and prevents excessive quiescent current draw in battery-powered or low-power systems where JAN1N4624D-1 serves as a reference or clamp.
Does JAN1N4624D-1 have a specified noise density?
Yes, JAN1N4624D-1 has a specified noise density of 1 µV/√Hz, as stated in the Electrical Characteristics table for the 1N4624-1 variant (which shares identical electrical specs with JAN1N4624D-1). This value is measured at 25 °C using a 1 kHz–3 kHz bandpass filter and reflects the device's suitability for low-noise analog reference applications such as precision ADCs and sensor signal conditioning.
What package type does JAN1N4624D-1 use?
JAN1N4624D-1 uses the DO-35 (also designated DO-204AH) axial-leaded hermetically sealed glass package. Per the Mechanical and Packaging section, it features tin-lead or RoHS-compliant matte-tin plating, cathode identification via a band, and weighs approximately 0.2 grams. Dimensions comply with JEDEC standards, with body diameter 1.42–2.29 mm and overall length 3.56–5.08 mm.
JAN1N4624D-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):
- 4.7 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1550 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 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)
JAN1N4624D-1 FAQ
1.How can I place an order for JAN1N4624D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4624D-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 JAN1N4624D-1 reliable?
The price and inventory of JAN1N4624D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4624D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4624D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4624D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4624D-1?
JAN1N4624D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4624D-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 JAN1N4624D-1?
For technical support, including JAN1N4624D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4624D-1 requirements.
6.How does Aetrix verify that JAN1N4624D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4624D-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 JAN1N4624D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4624D-1?
All JAN1N4624D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4624D-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 JAN1N4624D-1 part is unused and in its original packaging.
Return procedure for JAN1N4624D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4624D-1 Tags
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