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Microchip Technology JANTX1N4625D-1/TR
- Part No.:
- JANTX1N4625D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4625D-1/TR.pdf
- Description:
- DIODE ZENER 5.1V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,828
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Product details
Overview
JANTX1N4625D-1/TR from Microsemi is a 5.1 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4625D-1/TR datasheet, JANTX1N4625D-1/TR pinout, JANTX1N4625D-1/TR application, or JANTX1N4625D-1/TR equivalent, key selection factors include its 1% Zener voltage tolerance, 1500 Ω dynamic impedance at 250 mA, 70 mA maximum Zener current, -0.045/+0.030 %/°C temperature coefficient, and hermetically sealed axial-leaded construction.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 5.1 V at 250 mA test current, exhibiting low noise density (2 µV/√Hz) and minimal capacitance per Figure 3. Its metallurgical bond ensures stable breakdown characteristics under thermal cycling and radiation exposure.
The JANTX qualification confirms compliance with MIL-PRF-19500/435 requirements for screening, testing, and traceability. It is rated for junction temperatures from -65 °C to +175 °C and features a thermal resistance of 250 °C/W junction-to-lead when mounted with 10 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.1 V ±1% at 250 mA - enables precise reference generation in analog circuits requiring tight voltage stability. |
| Power Dissipation | 500 mW at 25 °C - supports continuous regulation in low-power bias networks without forced cooling. |
| Dynamic Impedance ZZT | 1500 Ω max at 250 mA - limits output voltage variation under load transients in feedback references. |
| Temperature Coefficient αVZ | -0.045/+0.030 %/°C - ensures predictable drift over military temperature range (-65 to +175 °C). |
| Noise Density ND | 2 µV/√Hz at 250 mA - minimizes added noise in precision analog signal chains and sensor excitation circuits. |
| Max Reverse Current IR | 3.0 µA at 3.0 V - guarantees low leakage in high-impedance reference nodes and standby power rails. |
| Junction Temp Range | -65 to +175 °C - validated for operation in extreme environments including space-grade and 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. Weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference Ground Node | Connected to system ground or common return path; establishes reference potential for regulated output. |
| Cathode | Zener Output Terminal | Provides stabilized 5.1 V output when reverse-biased; must be connected to higher-potential supply rail via current-limiting resistor. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Full military screening including burn-in, temperature cycling, and lot traceability for mission-critical applications. |
| 1% Zener voltage tolerance | Reduces calibration overhead in precision instrumentation and ADC reference designs. |
| Metallurgical bond construction | Ensures long-term parameter stability and resistance to parametric shift under thermal stress. |
| Hermetic glass sealing | Prevents moisture ingress and corrosion in high-humidity or sealed enclosure environments. |
| Low noise density (2 µV/√Hz) | Supports use in low-noise analog front-ends where reference noise directly impacts SNR. |
Applications
| Avionics Power Reference | Satellite Onboard Computer Bias |
|---|---|
Use Scenario: Providing stable 5.1 V reference for analog-to-digital converters in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision DC reference for data acquisition subsystems. Use Value: 1% tolerance and -0.045/+0.030 %/°C TC ensure <±10 mV drift across -55 to +125 °C operating range. | Use Scenario: Biasing op-amps and comparators in satellite telemetry conditioning circuits exposed to radiation. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference source for analog signal processing in LEO missions. Use Value: Inherent radiation hardness per MicroNote 050 and JANTX-level screening enable >100 krad(Si) TID tolerance. |
| Ground Vehicle Engine Control Unit | Tactical Radio RF Front-End Bias |
Use Scenario: Regulating microcontroller I/O voltage references in diesel engine ECU modules subjected to wide ambient swings. IC Role / Device Role / Timing Role: Temperature-stable shunt regulator maintaining reference integrity during cold cranking and hot soak cycles. Use Value: Junction temp rating up to +175 °C allows direct mounting on high-temp PCB zones near power stages. | Use Scenario: Supplying clean bias voltage to GaAs FET amplifiers in portable HF/VHF transceivers. IC Role / Device Role / Timing Role: Low-noise Zener source replacing bulkier IC references where board space is constrained. Use Value: 2 µV/√Hz noise density preserves receiver sensitivity without requiring additional filtering components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4625US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads. | Required for automated SMT assembly; unsuitable for through-hole prototyping or manual repair. | Select when board layout mandates surface-mount footprint and reflow compatibility is needed. |
| JANTXV1N4625D-1 | Identical electrical parameters but qualified to JANTXV level with enhanced screening (e.g., 100% life test, extended temperature cycling). | Used in higher-tier defense programs requiring extended reliability validation beyond JANTX. | Select when program specifications mandate JANTXV-level documentation and test records. |
Compared with JANTX1N4625D-1/TR, the 1N4625US-1 offers identical regulation performance in a compact SMT form factor, while JANTXV1N4625D-1 provides stricter screening for ultra-high-reliability deployments-neither is pin-compatible due to differing packages or qualification scope.
Availability
JANTX1N4625D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite onboard computer bias, and ground vehicle engine control unit applications requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4625D-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 1N46xx series was designed specifically for military-grade voltage regulation where long-term stability, radiation tolerance, and hermetic sealing are mandatory-not general-purpose commercial Zeners.
FAQ
What is the Zener voltage tolerance of JANTX1N4625D-1/TR?
JANTX1N4625D-1/TR has a nominal Zener voltage of 5.1 V with ±1% tolerance, as indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tolerance is verified at 250 mA test current and 25 °C ambient, and applies across the full military temperature range when derated per the power curve in Figure 2 of the datasheet.
Is JANTX1N4625D-1/TR RoHS compliant?
No, JANTX1N4625D-1/TR is not RoHS compliant. The "e3" RoHS designation appears only on commercial-grade versions (e.g., 1N4625D-1e3); JANTX-level parts retain tin-lead plating per MIL-STD-750 method 2026 and are exempt from RoHS under defense procurement waivers.
What is the maximum Zener current rating for JANTX1N4625D-1/TR?
The maximum Zener current (IZM) for JANTX1N4625D-1/TR is 70 mA, derived from its 500 mW power rating and 5.1 V nominal voltage. This value assumes operation at 25 °C lead temperature; current must be linearly derated above 50 °C per the curve in Figure 2 of the datasheet.
Does JANTX1N4625D-1/TR have radiation hardness certification?
Yes, JANTX1N4625D-1/TR is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction and JANTX qualification provide proven tolerance to total ionizing dose (TID) and single-event effects (SEE), making it suitable for low-earth orbit and avionics applications.
What does the "TR" suffix indicate in JANTX1N4625D-1/TR?
"TR" indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. The base part JANTX1N4625D-1 is identical electrically and mechanically; only the packaging format differs-bulk or ammo pack variants omit the "TR" suffix.
JANTX1N4625D-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):
- 5.1 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1500 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 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)
JANTX1N4625D-1/TR FAQ
1.How can I place an order for JANTX1N4625D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4625D-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 JANTX1N4625D-1/TR reliable?
The price and inventory of JANTX1N4625D-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 JANTX1N4625D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4625D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4625D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4625D-1/TR?
JANTX1N4625D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4625D-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 JANTX1N4625D-1/TR?
For technical support, including JANTX1N4625D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4625D-1/TR requirements.
6.How does Aetrix verify that JANTX1N4625D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4625D-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 JANTX1N4625D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4625D-1/TR?
All JANTX1N4625D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4625D-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 JANTX1N4625D-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4625D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4625D-1/TR Tags
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