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Microchip Technology JANTX1N4624D-1
- Part No.:
- JANTX1N4624D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4624D-1.pdf
- Description:
- DIODE ZENER 4.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,792
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Product details
Overview
JANTX1N4624D-1 from Microsemi is a 500 mW, 4.7 V ±1% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense systems.
For engineers reviewing the JANTX1N4624D-1 datasheet, JANTX1N4624D-1 pinout, JANTX1N4624D-1 application, or JANTX1N4624D-1 equivalent, key selection criteria include its 4.7 V nominal Zener voltage at 250 mA test current, 1550 Ω dynamic impedance, 5.0 µA max reverse leakage at 3.0 V, 75 mA maximum Zener current, and -0.050,+0.020 %/°C temperature coefficient.
Technical Context
This device operates as a precision shunt voltage regulator with a sharp breakdown knee at IZK = 250 mA, leveraging internal metallurgical bonding for stable thermal performance across -65 °C to +175 °C junction temperature range. Its low noise density of 1 µV/√Hz below 6.8 V supports low-noise analog references.
The DO-35 package provides hermetic glass sealing and axial-leaded mounting compatible with through-hole PCB assembly. Thermal resistance is 250 °C/W junction-to-lead (at 10 mm lead length), enabling reliable power dissipation up to 500 mW at 25 °C ambient before linear derating begins at 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.7 V ±1% at 250 mA - ensures tight regulation tolerance for precision reference circuits. |
| Power Dissipation | 500 mW @ 25 °C - supports stable operation in compact, unheatsinked designs with linear derating above 50 °C. |
| Dynamic Impedance ZZT | 1550 Ω @ 250 mA - defines output impedance in regulation region; critical for load regulation error calculation. |
| Reverse Leakage IR | 5.0 µA max @ 3.0 V - guarantees minimal quiescent current draw in standby or low-power bias networks. |
| Temp Coefficient αVZ | -0.050,+0.020 %/°C - enables predictable drift compensation in temperature-critical voltage references. |
| Noise Density ND | 1 µV/√Hz - specifies broadband RMS noise floor; essential for low-noise analog supply and sensor excitation. |
| Max Zener Current IZM | 75 mA - sets absolute upper current limit before thermal runaway risk under sustained regulation. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener regulation. Hermetically sealed, RoHS-compliant tin-lead plating per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point; establishes return path for Zener current. |
| Cathode | Regulated output node | Banded terminal; supplies stable 4.7 V when reverse-biased; must be held >4.7 V relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense applications requiring extended lifetime and radiation hardness. |
| Metallurgical bond construction | Eliminates interfacial delamination under thermal cycling, ensuring long-term parameter stability. |
| 1% Zener voltage tolerance | Reduces need for post-production trimming in precision reference designs, lowering BOM and test cost. |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency loading on sensitive oscillator or RF bias nodes where Zener is used as clamp. |
| Non-ESD-sensitive per MIL-STD-750 | Enables handling without special ESD controls during manual assembly or rework in production environments. |
Applications
| Reference Voltage Source | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 4.7 V reference for ADC voltage reference input in avionics data acquisition modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise scaling for analog-to-digital conversion. Use Value: ±1% tolerance and -0.050,+0.020 %/°C TC enable <±0.5% total error over -55 °C to +125 °C operating range. | Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events in vehicle control units. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to 4.7 V during ESD or load dump surges. Use Value: 1 µV/√Hz noise and 1550 Ω dynamic impedance ensure clamping action does not inject noise into signal paths. |
| Current Source Bias | Temperature-Stable Oscillator Bias |
Use Scenario: Generating constant bias current for op-amp input stages in satellite telemetry amplifiers. IC Role / Device Role / Timing Role: Zener-based current source using series resistor to set regulated current. Use Value: 500 mW rating and 250 °C/W RθJL allow continuous 250 mA operation with minimal thermal rise on standard FR4 board. | Use Scenario: Supplying temperature-compensated bias to crystal oscillator sustaining amplifiers in navigation timing modules. IC Role / Device Role / Timing Role: Low-noise, thermally stable voltage source for oscillator core biasing. Use Value: Low 1 µV/√Hz noise prevents phase jitter degradation; metallurgical bond ensures TC stability over mission lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4624D-1 | Higher qualification level (JANTXV vs JANTX); tighter screening, lower failure rate, extended temperature validation. | Required for mission-critical flight hardware where single-point failure must be minimized. | Select JANTXV1N4624D-1 only when full JANTXV screening and extended burn-in are mandated by system spec. |
| 1N4624UR-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads. | Suitable for space-constrained PCBs requiring automated SMT assembly instead of through-hole mounting. | Choose 1N4624UR-1 when layout demands surface-mount compatibility and thermal profile permits SMT reflow. |
Compared with JANTX1N4624D-1, JANTXV1N4624D-1 offers enhanced reliability assurance for flight-critical functions, while 1N4624UR-1 trades axial mounting for SMT compatibility-neither is pin-compatible due to differing packages, and both require layout revision.
Availability
JANTX1N4624D-1 is available at Aetrix Electronics and suitable for aerospace power management, defense-grade sensor conditioning, and avionics voltage reference applications requiring stable component supply across extended product lifecycles.
Supply support for JANTX1N4624D-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-grade voltage regulation where long-term stability, radiation tolerance, and extreme temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4624D-1?
JANTX1N4624D-1 has a nominal Zener voltage of 4.7 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 qualified temperature range of -65 °C to +175 °C junction temperature.
Is JANTX1N4624D-1 RoHS compliant?
No, JANTX1N4624D-1 is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade variants-not for JAN, JANTX, JANTXV, or JANS qualified parts like JANTX1N4624D-1, which retain traditional tin-lead plating for solderability and reliability in harsh environments.
What is the maximum Zener current for JANTX1N4624D-1?
The maximum Zener current IZM for JANTX1N4624D-1 is 75 mA, derived from its 500 mW power rating and 4.7 V Zener voltage (P = V × I → I = 0.5 W / 4.7 V ≈ 106 mA, reduced to 75 mA to maintain safe thermal margin and ensure long-term reliability under MIL-qualified conditions).
Does JANTX1N4624D-1 have a specified noise density?
Yes, JANTX1N4624D-1 has a maximum noise density of 1 µV/√Hz, consistent with the 1N4614–1N4627 family's specification for devices below 6.8 V. This value is measured at 250 mA Zener test current within a 1 kHz–3 kHz bandpass filter at 25 °C ambient, and supports low-noise analog reference design.
What packaging options exist for JANTX1N4624D-1?
JANTX1N4624D-1 is supplied exclusively in the DO-35 (DO-204AH) axial-leaded glass package. Surface-mount alternatives such as DO-213AA (1N4624UR-1) or DO-216 (1PMT4624) exist but carry different part numbers and qualification levels; JANTX1N4624D-1 itself is not offered in SMT form.
JANTX1N4624D-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:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTX1N4624D-1 FAQ
1.How can I place an order for JANTX1N4624D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4624D-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 JANTX1N4624D-1 reliable?
The price and inventory of JANTX1N4624D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4624D-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4624D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4624D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4624D-1?
JANTX1N4624D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4624D-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 JANTX1N4624D-1?
For technical support, including JANTX1N4624D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4624D-1 requirements.
6.How does Aetrix verify that JANTX1N4624D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4624D-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 JANTX1N4624D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4624D-1?
All JANTX1N4624D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4624D-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 JANTX1N4624D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4624D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4624D-1 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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