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Microchip Technology JANS1N4624C-1/TR
- Part No.:
- JANS1N4624C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4624C-1/TR.pdf
- Description:
- DIODE ZENER 4.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,003
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Product details
Overview
JANS1N4624C-1/TR from Microsemi is a 500 mW, 4.7 V Zener diode in DO-35 glass package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers ±2% voltage tolerance, 1550 Ω dynamic impedance at 250 mA test current, and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4624C-1/TR datasheet, JANS1N4624C-1/TR pinout, JANS1N4624C-1/TR application, or JANS1N4624C-1/TR equivalent, this page provides verified electrical specs, thermal derating behavior, noise density (1 µV/√Hz), radiation-hardened construction, and military-grade qualification details critical for space-qualified power regulation and reference design.
Technical Context
This device functions as a precision voltage reference and shunt regulator in analog signal conditioning, power supply feedback loops, and overvoltage protection circuits. Its metallurgically bonded glass construction ensures hermetic sealing and inherent radiation hardness per Microsemi MicroNote 050, with low capacitance (<1.5 pF typical) and ESD immunity per MIL-STD-750 Method 1020.
The JANS1N4624C-1/TR exhibits a Zener voltage temperature coefficient of –0.050 %/°C (or +0.020 %/°C), enabling stable regulation under wide thermal excursions. Its 250 mA Zener test current (IZT) and 75 mA maximum Zener current (IZM) define its operating envelope within the 500 mW power limit, linearly derated above 50 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.7 V ±2% at 250 mA - defines precise regulation point for feedback or clamping |
| Power Dissipation | 500 mW @ TC = 25 °C - sets maximum continuous thermal load on PCB layout |
| Dynamic Impedance (ZZT) | 1550 Ω @ IZT = 250 mA - determines regulation stability under varying load current |
| Noise Density (ND) | 1 µV/√Hz @ IZT - enables low-noise reference use in precision instrumentation |
| Temp Coefficient (αVZ) | –0.050 %/°C (or +0.020 %/°C) - quantifies drift over temperature for system accuracy budgeting |
| Reverse Leakage (IR) | 3.0 µA @ VR = 3.5 V - specifies minimum bias current needed for reliable conduction onset |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extreme environments without derating loss |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end must be biased positive for Zener regulation. Hermetically sealed, tin-lead or RoHS-compliant matte-tin plating, ~0.2 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground-reference terminal | Connected to circuit common; reverse-biased when cathode is at higher potential |
| Cathode | Zener regulation node | Banded end; connected to regulated voltage rail or error amplifier input |
Key Features
| Feature | Design Value |
|---|---|
| Internal metallurgical bond | Ensures long-term reliability and resistance to thermal cycling in harsh environments |
| JANS-level qualification | Fully compliant with MIL-PRF-19500/435 for spaceflight and mission-critical systems |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - no additional shielding required |
| Low noise density | 1 µV/√Hz at 4.7 V enables use in high-resolution ADC references and sensor front-ends |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - eliminates need for external ESD protection |
Applications
| Avionics Power Monitoring | Satellite Bus Voltage Reference |
|---|---|
Use Scenario: Regulating and monitoring 5 V bus voltage in flight control electronics under thermal vacuum conditions. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 4.7 V reference for comparator-based overvoltage detection. Use Value: ±2% tolerance and –65 °C to +175 °C operation ensure detection threshold remains valid across orbital thermal cycles. | Use Scenario: Providing precision bias for radiation-hardened op-amps in satellite telemetry signal conditioning. IC Role / Device Role / Timing Role: Low-noise (1 µV/√Hz), radiation-hardened Zener reference replacing active regulators where size and power are constrained. Use Value: Eliminates need for external filtering and reduces BOM count while maintaining <10 ppm/°C drift budget. |
| Military Radar Bias Supply | Nuclear Instrumentation Calibration |
Use Scenario: Stabilizing gate bias for GaN RF power amplifiers in ground-based radar transmitters exposed to shock/vibration. IC Role / Device Role / Timing Role: High-reliability shunt regulator maintaining fixed bias point despite input ripple and transient load changes. Use Value: 1550 Ω dynamic impedance and 500 mW rating sustain regulation during pulsed RF operation without thermal runaway. | Use Scenario: Calibrating high-precision charge-integration circuits in neutron detection systems requiring traceable voltage standards. IC Role / Device Role / Timing Role: Primary voltage standard referenced against NIST-traceable sources in field-deployable calibration kits. Use Value: JANS qualification and hermetic DO-35 packaging guarantee metrological stability over 15+ year service life in uncontrolled environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4624US-1/TR | Same 4.7 V ±2%, 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. |
| JANTXV1N4624C-1/TR | Identical electrical specs and DO-35 package, but qualified only to JANTXV level (not JANS); lower screening rigor | Approved for high-reliability ground systems but not certified for spaceflight or nuclear-hardened platforms | Select for cost-sensitive defense programs where full JANS testing is not mandated. |
Compared with JANS1N4624C-1/TR, the 1N4624US-1/TR offers footprint reduction at the expense of mechanical robustness, while JANTXV1N4624C-1/TR trades qualification depth for procurement speed and lower unit cost-both require explicit validation for radiation or thermal vacuum use cases.
Availability
JANS1N4624C-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite bus voltage reference, and military radar bias supply requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANS1N4624C-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 1N46xx series was engineered specifically for military and space applications demanding radiation tolerance, hermetic sealing, and extended temperature operation-JANS1N4624C-1/TR embodies that legacy in a qualified 4.7 V Zener reference.
FAQ
What is the Zener voltage tolerance of JANS1N4624C-1/TR?
JANS1N4624C-1/TR has a nominal Zener voltage of 4.7 V with a ±2% tolerance, as indicated by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is guaranteed over the full operating temperature range and qualifies the device for precision regulation tasks in mission-critical systems where voltage stability is essential.
Is JANS1N4624C-1/TR radiation hardened?
Yes, JANS1N4624C-1/TR is inherently radiation hard per Microsemi MicroNote 050 due to its metallurgically bonded glass construction and JANS-level qualification per MIL-PRF-19500/435. It does not require external shielding or derating for total ionizing dose (TID) in low-earth orbit or terrestrial nuclear environments.
What is the maximum Zener current (IZM) for JANS1N4624C-1/TR?
The maximum Zener current (IZM) for JANS1N4624C-1/TR is 75 mA at 25 °C ambient, derived from its 500 mW power rating and 4.7 V Zener voltage. Above 50 °C lead temperature, power must be linearly derated to zero at 175 °C, limiting usable IZM in high-temperature deployments.
Does JANS1N4624C-1/TR have RoHS compliance?
No, JANS1N4624C-1/TR is not RoHS compliant. The "e3" RoHS suffix is only available on commercial-grade versions (e.g., 1N4624C-1e3). JANS-level devices retain tin-lead plating per MIL-STD-750 to ensure solderability and reliability under thermal cycling in aerospace applications.
What package type is used for JANS1N4624C-1/TR?
JANS1N4624C-1/TR uses the DO-35 (also designated DO-204AH) axial-leaded, hermetically sealed glass package. Its dimensions conform to MIL-PRF-19500 requirements, with banded cathode marking and ~0.2 g mass-optimized for through-hole mounting in high-reliability PCB assemblies.
JANS1N4624C-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):
- 4.7 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.55 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 (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4624C-1/TR FAQ
1.How can I place an order for JANS1N4624C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4624C-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 JANS1N4624C-1/TR reliable?
The price and inventory of JANS1N4624C-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 JANS1N4624C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4624C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4624C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4624C-1/TR?
JANS1N4624C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4624C-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 JANS1N4624C-1/TR?
For technical support, including JANS1N4624C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4624C-1/TR requirements.
6.How does Aetrix verify that JANS1N4624C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4624C-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 JANS1N4624C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4624C-1/TR?
All JANS1N4624C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4624C-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 JANS1N4624C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4624C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N4624C-1/TR Tags
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