My Inquiry
My Account
Microchip Technology JANTX1N4624D-1/TR
- Part No.:
- JANTX1N4624D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4624D-1/TR.pdf
- Description:
- DIODE ZENER 4.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,139
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N4624D-1/TR from Microsemi is a 4.7 V, 1% tolerance, 500 mW axial-leaded Zener diode in DO-35 glass package, qualified to JANTX level per MIL-PRF-19500/435 for high-reliability voltage regulation in military and aerospace power conditioning circuits.
For engineers reviewing the JANTX1N4624D-1/TR datasheet, JANTX1N4624D-1/TR pinout, JANTX1N4624D-1/TR application, or JANTX1N4624D-1/TR equivalent, key selection criteria include Zener voltage accuracy (±1%), low noise density (1 µV/√Hz), metallurgically bonded construction, and MIL-spec thermal derating behavior up to +175 °C junction temperature.
Technical Context
This device operates as a precision shunt regulator with a nominal Zener voltage of 4.7 V at 250 mA test current (IZT), exhibiting dynamic impedance of 1550 Ω and reverse leakage ≤3.0 µA at 3.0 V (VR). Its metallurgical bond ensures stable breakdown characteristics under thermal cycling and radiation exposure.
Designed for operation in the sharp knee region of the Zener curve, it delivers regulated output across wide current ranges (IZK to IZM = 75 mA) while maintaining ±1% voltage tolerance and temperature coefficient of –0.050,+0.020 %/°C - critical for reference stability in analog signal chains and power supply feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.7 V ±1% at 250 mA - enables precise 4.7 V reference generation with minimal calibration drift. |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - supports operation in high-temperature avionics enclosures without forced cooling. |
| Zener Impedance ZZT | 1550 Ω at 250 mA - ensures stable regulation under varying load currents in feedback networks. |
| Noise Density ND | 1 µV/√Hz at 250 mA - minimizes voltage reference noise in precision ADC/DAC biasing and sensor excitation circuits. |
| Reverse Leakage IR | ≤3.0 µA at VR = 3.0 V - guarantees low quiescent current draw in battery-backed or low-power standby modes. |
| Temp Coefficient αVZ | –0.050,+0.020 %/°C - provides predictable, bounded voltage shift over –65 to +175 °C operating range. |
| Junction Temp Range | –65 to +175 °C - validated for extended-temperature deployment in space-grade and defense electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-glass package with cathode band marking; leads are tin-lead plated and solderable per MIL-STD-750 Method 2026. Weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-bias testing or clamping. |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; reverse-biased to maintain 4.7 V reference across load. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for mission-critical systems including airborne radar power supplies and satellite telemetry regulators. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and mechanical vibration - essential for launch environments. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision voltage references and analog front-end biasing. |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for low-dose-rate space applications without shielding overhead. |
| Low capacitance | Typical <2 pF (per Figure 3) - preserves high-frequency response in RF detector biasing and fast-switching protection circuits. |
Applications
| Avionics Power Reference | Satellite Telemetry Regulator |
|---|---|
Use Scenario: Providing stable 4.7 V reference for analog-to-digital converters in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage reference in precision measurement subsystems. Use Value: ±1% tolerance and –0.050,+0.020 %/°C TC ensure <±3 mV drift over –55 to +125 °C operational range. | Use Scenario: Regulating bias voltage for radiation-hardened transceivers in LEO satellite command receivers. IC Role / Device Role / Timing Role: Primary Zener shunt regulator in unregulated bus conditioning. Use Value: Metallurgical bond and JANTX qualification guarantee >10⁶ hours MTBF under thermal cycling and proton irradiation. |
| Tactical Radio Bias Supply | Missile Guidance Sensor Excitation |
Use Scenario: Generating clean 4.7 V excitation for MEMS accelerometers in handheld battlefield radios. IC Role / Device Role / Timing Role: Low-noise voltage source for sensor bridge biasing. Use Value: 1 µV/√Hz noise density prevents degradation of sub-milligal resolution in inertial sensing. | Use Scenario: Stabilizing reference voltage for analog signal conditioning in seeker head temperature-compensated amplifiers. IC Role / Device Role / Timing Role: Precision shunt regulator in closed-loop thermal compensation circuitry. Use Value: Stable 4.7 V output across –65 to +175 °C enables accurate gain calibration without software correction. |
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/TR | JANTXV qualification (higher screening, tighter parametric limits) vs. JANTX; same VZ, tolerance, package. | Required for programs specifying JANTXV-level reliability (e.g., missile guidance, nuclear C4I). | Select when full MIL-PRF-19500/435 JANTXV screening and extended life test data are mandated. |
| 1N4624US-1/TR | Surface-mount DO-213AA package; identical electrical specs but no axial leads or MIL qualification. | Suitable only for commercial or industrial PCBs where reflow compatibility and board space are prioritized over military reliability. | Choose for cost-sensitive, non-military designs requiring same 4.7 V/1% performance in SMT format. |
Compared with JANTX1N4624D-1/TR, JANTXV1N4624D-1/TR offers enhanced screening for extreme environments, while 1N4624US-1/TR trades MIL qualification for surface-mount convenience - neither is pin-compatible due to differing packages and reliability grades.
Availability
JANTX1N4624D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite telemetry regulator, and tactical radio bias supply applications requiring stable component supply, long-term obsolescence management, and traceable MIL-spec sourcing.
Supply support for JANTX1N4624D-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 to meet stringent MIL-PRF-19500/435 requirements for Zener regulation in mission-critical power and reference circuits where long-term stability and radiation tolerance are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4624D-1/TR?
JANTX1N4624D-1/TR has a nominal Zener voltage of 4.7 V with ±1% tolerance, indicated by the "D" suffix in its nomenclature per MIL-PRF-19500/435. This tight tolerance is verified during JANTX-level screening and ensures consistent regulation across production lots without post-manufacture calibration.
Is JANTX1N4624D-1/TR RoHS compliant?
No, JANTX1N4624D-1/TR is not RoHS compliant. The "e3" RoHS suffix is only available on commercial-grade versions (e.g., 1N4624D-1e3); JANTX-level parts retain tin-lead plating per MIL-STD-750 to ensure solderability and reliability under military thermal cycling requirements.
What is the maximum Zener current IZM for JANTX1N4624D-1/TR?
The maximum Zener current IZM for JANTX1N4624D-1/TR is 75 mA, calculated from its 500 mW power rating and 4.7 V Zener voltage (P = V × I → I = 0.5 W / 4.7 V ≈ 106 mA), then conservatively limited by thermal resistance and derating curves to 75 mA at 25 °C ambient.
Does JANTX1N4624D-1/TR require heatsinking in standard operation?
No, JANTX1N4624D-1/TR does not require external heatsinking under typical conditions. Its thermal resistance junction-to-ambient is 300 °C/W on FR4 board, and with 500 mW dissipation, temperature rise is ~150 °C - acceptable within its –65 to +175 °C junction range when lead length and copper area meet specified layout guidelines.
How is polarity marked on JANTX1N4624D-1/TR?
JANTX1N4624D-1/TR uses a cathode band marking on the glass body to indicate polarity. The banded end is the cathode and must be connected to the higher-potential node during Zener regulation; the opposite (unbanded) end is the anode. This marking complies with JEDEC DO-35 standards and MIL-STD-750 visual inspection requirements.
JANTX1N4624D-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:
- ±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/TR FAQ
1.How can I place an order for JANTX1N4624D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4624D-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 JANTX1N4624D-1/TR reliable?
The price and inventory of JANTX1N4624D-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 JANTX1N4624D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4624D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4624D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4624D-1/TR?
JANTX1N4624D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4624D-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 JANTX1N4624D-1/TR?
For technical support, including JANTX1N4624D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4624D-1/TR requirements.
6.How does Aetrix verify that JANTX1N4624D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4624D-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 JANTX1N4624D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4624D-1/TR?
All JANTX1N4624D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4624D-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 JANTX1N4624D-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N4624D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4624D-1/TR Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
