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Microchip Technology JANTXV1N4963DUS/TR
- Part No.:
- JANTXV1N4963DUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4963DUS/TR.pdf
- Description:
- DIODE ZENER 16V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:4,754
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Product details
Overview
JANTXV1N4963DUS/TR from Microsemi is a military-grade, hermetically sealed surface-mount Zener diode rated for 5 W power dissipation at 140 °C end-cap temperature, with a nominal Zener voltage of 16 V ±5%, dynamic impedance of 3.5 Ω at 75 mA test current, and operating junction temperature range from –65 °C to +175 °C. It serves as a precision voltage reference and overvoltage clamp in high-reliability aerospace power conditioning circuits.
For engineers reviewing the JANTXV1N4963DUS/TR datasheet, JANTXV1N4963DUS/TR pinout, JANTXV1N4963DUS/TR application, or JANTXV1N4963DUS/TR equivalent, key selection criteria include its voidless-glass hermetic construction, Category I metallurgical bond, MIL-PRF-19500/356 qualification, and suitability for radiation-hardened, high-temperature, low-leakage analog regulation tasks.
Technical Context
This device belongs to the 1N4954US–1N4996US family of surface-mount Zener regulators qualified to MIL-PRF-19500/356. Its voidless-glass package uses internal tungsten slugs and copper end caps with Sn/Pb finish, enabling stable operation across –65 °C to +175 °C with no derating until 140 °C end-cap temperature.
It exhibits 3.5 Ω dynamic impedance at 75 mA (IZT), 5 μA maximum reverse leakage at 12.2 V (VR), and a temperature coefficient of +0.08 %/°C - confirming positive VZ drift with temperature, critical for thermal stability analysis in regulated supply feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±5% at 75 mA - defines stable regulation point for biasing or reference generation |
| Power Dissipation | 5 W @ TEC = 140 °C - sets maximum continuous thermal load without derating |
| Dynamic Impedance (ZZ) | 3.5 Ω @ IZT = 75 mA - determines output voltage variation under load transients |
| Reverse Leakage (IR) | 5 μA max @ VR = 12.2 V - ensures minimal quiescent current in standby regulation |
| Temp Coefficient (αVZ) | +0.08 %/°C @ IZT - quantifies VZ drift magnitude per degree Celsius rise |
| Max Surge Current | 10 A @ 8.3 ms - supports transient overvoltage clamping in MIL-STD-1275 compliant systems |
| Junction Temp Range | –65 °C to +175 °C - enables deployment in engine bay, avionics bays, and space-qualified enclosures |
Pinout & Package
Package: Hermetically sealed voidless glass "E" package (also designated D-5B), with copper end caps and Sn/Pb finish; cathode indicated by band; polarity-critical for correct biasing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node; must be held ≤0.7 V below cathode for forward conduction |
| Cathode | Zener breakdown terminal | Connected to higher-potential node; regulates voltage referenced to anode when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic voidless-glass seal | Prevents moisture ingress and long-term parameter drift in humid or vacuum environments |
| Category I metallurgical bond | Ensures mechanical integrity and thermal cycling reliability up to 1000 cycles between –65 °C and +175 °C |
| MIL-PRF-19500/356 qualification | Validates performance against screening, testing, and traceability requirements for Class V (space-level) applications |
| Nonsensitive to ESD | Withstands ≥4 kV HBM per MIL-STD-750 Method 1020 without parameter shift or failure |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per MicroNote 050 - suitable for low-earth orbit missions |
Applications
| Aerospace Power Bus Regulation | Avionics Reference Voltage Source |
|---|---|
|
Use Scenario: Stabilizing 28 V DC bus in satellite power distribution units during solar array transients. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and overvoltage clamp. Use Value: Maintains bus voltage within ±0.5 V tolerance using 16 V Zener with 3.5 Ω dynamic impedance and 10 A surge rating. |
Use Scenario: Providing stable 16 V reference for ADC biasing and op-amp offset trimming in flight control computers. IC Role / Device Role / Timing Role: Precision voltage reference element in analog signal conditioning chains. Use Value: Delivers <5 μA leakage at 12.2 V and +0.08 %/°C tempco - minimizing reference drift across –55 °C to +125 °C operational range. |
| Tactical Radio RF Stage Biasing | Military Vehicle ECU Protection |
|
Use Scenario: Setting gate bias voltage for GaN PA stages in manpack radios exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Temperature-stable DC bias source for RF amplifier bias networks. Use Value: Leverages +0.08 %/°C coefficient and 175 °C max junction rating to maintain consistent gain across environmental extremes. |
Use Scenario: Clamping induced transients on 24 V CAN bus lines in armored vehicle electronic control units per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting microcontroller I/O pins. Use Value: Absorbs 10 A surges at 8.3 ms with <20 ns response time and zero degradation after repeated events due to hermetic construction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4963US | No tape-and-reel packaging; bulk or ammo-pack only; identical electrical specs and hermetic construction | Lacks TR suffix - unsuitable for automated SMT placement; requires manual or pick-and-place adapter | Select JANTXV1N4963DUS/TR for production line compatibility with EIA-481-B feeders |
| 1N4963US (non-JANTXV) | Commercial-grade screening; no MIL-PRF-19500/356 qualification; same Zener voltage and package | Not approved for Class H/V aerospace or defense programs requiring QML listing | Choose JANTXV1N4963DUS/TR where radiation tolerance, extended temperature validation, or lot traceability is mandated |
Compared with JANTXV1N4963US and 1N4963US, JANTXV1N4963DUS/TR uniquely combines tape-and-reel automation support, full MIL-PRF-19500/356 Class V screening, and guaranteed voidless-glass hermeticity - making it the only option qualified for flight-critical voltage regulation in DoD platforms.
Availability
JANTXV1N4963DUS/TR is available at Aetrix Electronics and suitable for aerospace power regulation, avionics reference design, and military vehicle ECU protection requiring stable component supply under extended temperature and radiation constraints.
Supply support for JANTXV1N4963DUS/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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for defense, aerospace, and industrial markets.
The JANTXV1N4963DUS/TR belongs to Microsemi's legacy MIL-PRF-19500/356-qualified Zener diode product line, engineered specifically for mission-critical voltage regulation in harsh-environment electronics.
FAQ
What is the Zener voltage tolerance for JANTXV1N4963DUS/TR?
JANTXV1N4963DUS/TR has a nominal Zener voltage of 16 V with a standard tolerance of ±5%, as defined in MIL-PRF-19500/356. This tolerance applies at 25 °C and 75 mA test current (IZT), and is verified during military screening. Tighter tolerances (e.g., ±2% or ±1%) require different suffixes (C or D) not present in this part number.
Does JANTXV1N4963DUS/TR meet MIL-PRF-19500/356 requirements?
Yes, JANTXV1N4963DUS/TR is fully qualified to MIL-PRF-19500/356 as a JANTXV-grade device. It undergoes rigorous screening including burn-in, temperature cycling, and parametric verification per the specification, and is listed on the Qualified Manufacturers List (QML) for Class V (space-level) applications.
What is the maximum continuous power dissipation for JANTXV1N4963DUS/TR?
JANTXV1N4963DUS/TR is rated for 5 W continuous power dissipation at an end-cap temperature (TEC) of 140 °C. Power must be linearly derated above 140 °C, reaching zero at 175 °C. This rating assumes proper PCB copper area and thermal interface per the D-5B pad layout in the SD44A datasheet.
Is JANTXV1N4963DUS/TR suitable for radiation-hardened applications?
Yes, JANTXV1N4963DUS/TR is inherently radiation-hardened per Microsemi MicroNote 050, exhibiting tolerance to total ionizing dose (TID) without functional degradation. Its voidless-glass hermetic seal and Category I metallurgical bond further ensure reliability in low-earth orbit and nuclear-hardened environments.
What does the "DUS/TR" suffix indicate in JANTXV1N4963DUS/TR?
The "DUS/TR" suffix denotes two features: "DUS" specifies the D-5B (E) package with voidless-glass hermetic construction and Sn/Pb terminations; "TR" indicates tape-and-reel packaging per EIA-481-B standard, enabling automated SMT assembly. This distinguishes it from bulk-packaged variants like JANTXV1N4963US.
JANTXV1N4963DUS/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SQ-MELF, E
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±1%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 12.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 1 A
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/356
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- E-MELF
JANTXV1N4963DUS/TR FAQ
1.How can I place an order for JANTXV1N4963DUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4963DUS/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 JANTXV1N4963DUS/TR reliable?
The price and inventory of JANTXV1N4963DUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4963DUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4963DUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4963DUS/TR transactions.
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4.How is shipping managed for JANTXV1N4963DUS/TR?
JANTXV1N4963DUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4963DUS/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 JANTXV1N4963DUS/TR?
For technical support, including JANTXV1N4963DUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4963DUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4963DUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4963DUS/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 JANTXV1N4963DUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4963DUS/TR?
All JANTXV1N4963DUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4963DUS/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 JANTXV1N4963DUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4963DUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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