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Microchip Technology JANTX1N4626D-1
- Part No.:
- JANTX1N4626D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4626D-1.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,041
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Product details
Overview
JANTX1N4626D-1 from Microsemi is a 5.6 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANTX level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4626D-1 datasheet, JANTX1N4626D-1 pinout, JANTX1N4626D-1 application, or JANTX1N4626D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (1400 Ω @ 250 mA), noise density (4 µV/√Hz), temperature coefficient (+0.04%/°C upper bound), and JANTX-level qualification for extended temperature operation.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 5.6 V at 250 mA test current, exhibiting low dynamic impedance (1400 Ω) and tightly controlled temperature coefficient (–0.020 to +0.040 %/°C). Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling.
Designed for high-reliability environments, JANTX1N4626D-1 supports operation from –65 °C to +175 °C junction temperature, with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length, enabling robust performance in conduction-cooled military avionics and space-grade power conditioning circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.6 V ±1% at 250 mA - enables precise reference generation in analog monitoring and feedback loops |
| Power Rating | 500 mW at 25 °C - supports stable regulation in low-power bias networks without forced cooling |
| Dynamic Impedance ZZT | 1400 Ω max @ 250 mA - ensures minimal output voltage variation under load transients |
| Noise Density | 4 µV/√Hz @ 250 mA - critical for low-noise voltage references in precision instrumentation |
| Temp Coefficient αVZ | –0.020 to +0.040 %/°C - guarantees predictable drift across military temperature range |
| Max Reverse Current IR | 5.0 µA @ 4.0 V - confirms sharp knee and low leakage in standby regulation |
| Junction Temp Range | –65 to +175 °C - validated for operation in harsh environmental enclosures and sealed modules |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by band; leads are tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; must be held at lower potential than cathode during regulation |
| Cathode | Zener regulation terminal | Banded end; connected to unregulated input rail; maintains 5.6 V relative to anode when reverse-biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock, ensuring long-term parameter stability in flight-critical systems |
| JANTX qualification per MIL-PRF-19500/435 | Validated screening including burn-in, temperature cycling, and hermeticity testing for mission-critical reliability |
| 1% Zener voltage tolerance | Reduces need for post-calibration trimming in analog sensor signal chains and ADC reference buffers |
| Low noise density (4 µV/√Hz) | Enables use in high-resolution data acquisition front-ends where reference noise directly limits SNR |
| Non-ESD-sensitive design | Withstands handling without special precautions per MIL-STD-750 method 1020, simplifying assembly in Class 1000 cleanrooms |
Applications
| Avionics Power Monitoring | Satellite DC-DC Reference |
|---|---|
Use Scenario: Real-time bus voltage supervision in airborne power distribution units with wide ambient temperature swings. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 5.6 V threshold for comparator-based overvoltage detection. Use Value: Tight 1% tolerance and –65 to +175 °C operation ensure consistent trip points across flight envelope without recalibration. | Use Scenario: Precision reference for isolated error amplifiers in radiation-hardened DC-DC converters on LEO satellites. IC Role / Device Role / Timing Role: Primary Zener reference establishing regulated feedback voltage for PWM controller ICs. Use Value: Metallurgical bond and JANTX qualification guarantee parametric stability after total ionizing dose exposure up to 100 krad(Si). |
| Military Radio Bias Supply | Tactical Sensor Signal Conditioning |
Use Scenario: Low-noise bias network for RF power amplifier stages in manpack radios operating in desert and arctic conditions. IC Role / Device Role / Timing Role: Zener-regulated gate bias source maintaining constant quiescent current despite battery voltage sag. Use Value: 4 µV/√Hz noise density prevents AM sideband degradation in transmit paths; DO-35 axial leads simplify through-hole mounting on ruggedized PCBs. | Use Scenario: Analog front-end reference for thermocouple amplifiers in battlefield environmental sensors exposed to vibration and humidity. IC Role / Device Role / Timing Role: Stable 5.6 V reference for instrumentation op-amps converting millivolt-level sensor outputs. Use Value: Hermetic glass package prevents moisture-induced parameter shift; 1400 Ω dynamic impedance minimizes gain error from reference loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4626D-1 | Higher screening level (JANTXV vs JANTX); tighter lot acceptance testing and extended life test requirements | Required for programs specifying JANTXV-level reliability (e.g., missile guidance subsystems) | Select JANTXV1N4626D-1 only when JANTXV qualification is mandated by system specification |
| 1N4626US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads | Used where board space constraints prohibit axial-leaded components or automated SMT assembly is required | Choose 1N4626US-1 for compact, reflow-soldered designs; JANTX1N4626D-1 remains preferred for manual repair and high-vibration mechanical retention |
Compared with JANTX1N4626D-1, JANTXV1N4626D-1 adds enhanced screening for mission-critical timing margins, while 1N4626US-1 trades axial mechanical robustness for SMT footprint reduction-neither is pin-compatible due to differing packages and reliability grades.
Availability
JANTX1N4626D-1 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite DC-DC reference, and military radio bias supply requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTX1N4626D-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.
JANTX1N4626D-1 belongs to the 1N4614–1N4627 family of MIL-qualified Zener diodes designed specifically for precision voltage regulation in safety-critical power systems where parameter stability under extreme thermal and radiation stress is mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4626D-1?
JANTX1N4626D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its nomenclature. This tight tolerance is achieved through post-process binning and verified during JANTX-level qualification testing per MIL-PRF-19500/435, making JANTX1N4626D-1 suitable for applications demanding high initial accuracy without calibration.
Does JANTX1N4626D-1 require derating above 25 °C ambient temperature?
Yes, JANTX1N4626D-1 must be linearly derated from 500 mW starting at 25 °C ambient temperature, reaching zero power dissipation at 175 °C. Derating follows a slope of approximately 3.57 mW/°C, based on its thermal resistance junction-to-ambient of 300 °C/W on a standard FR4 board with specified copper layout.
Is JANTX1N4626D-1 RoHS compliant?
No, JANTX1N4626D-1 is not RoHS compliant. The "e3" RoHS designation applies only to commercial-grade versions (e.g., 1N4626D-1e3); JANTX-level parts retain traditional tin-lead plating to meet MIL-STD-750 solderability requirements and avoid reliability risks associated with pure matte-tin finishes in high-reliability assemblies.
What is the maximum reverse leakage current for JANTX1N4626D-1?
The maximum reverse leakage current (IR) for JANTX1N4626D-1 is 5.0 µA measured at 4.0 V reverse voltage and 25 °C. This value is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet and reflects the sharp knee behavior essential for reliable low-current regulation in standby circuits.
Can JANTX1N4626D-1 be used in radiation-exposed environments?
Yes, JANTX1N4626D-1 is inherently radiation hard, as documented in Microsemi MicroNote 050. Its metallurgically bonded structure and glass hermetic package provide proven resilience to total ionizing dose (TID) effects, supporting use in low-earth orbit satellite power systems where cumulative radiation exposure exceeds 50 krad(Si).
JANTX1N4626D-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):
- 5.6 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1400 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4626D-1 FAQ
1.How can I place an order for JANTX1N4626D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4626D-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 JANTX1N4626D-1 reliable?
The price and inventory of JANTX1N4626D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4626D-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4626D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4626D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4626D-1?
JANTX1N4626D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4626D-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 JANTX1N4626D-1?
For technical support, including JANTX1N4626D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4626D-1 requirements.
6.How does Aetrix verify that JANTX1N4626D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4626D-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 JANTX1N4626D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4626D-1?
All JANTX1N4626D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4626D-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 JANTX1N4626D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4626D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4626D-1 Tags
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