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Microchip Technology JANTX1N4962CUS/TR
- Part No.:
- JANTX1N4962CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTX1N4962CUS/TR.pdf
- Description:
- DIODE ZENER 15V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:8,950
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Product details
Overview
JANTX1N4962CUS/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 nominal Zener voltage of 15 V ±2% (C suffix), dynamic impedance of 3.5 Ω at 75 mA test current, and operating junction temperature range of −65 °C to +175 °C. It serves as a precision voltage reference and regulation element in high-reliability power conditioning circuits.
For engineers reviewing the JANTX1N4962CUS/TR datasheet, JANTX1N4962CUS/TR pinout, JANTX1N4962CUS/TR application, or JANTX1N4962CUS/TR equivalent, this part is selected for critical voltage stabilization where long-term parametric stability, radiation hardness, ESD immunity, and MIL-PRF-19500/356 qualification are mandatory design requirements.
Technical Context
This device belongs to the JANTX-classified 1N4954US–1N4996US series, featuring voidless hermetically sealed glass construction with internal Category I metallurgical bonds and triple-layer passivation. Its Zener regulation operates over a broad continuous current range (5 mA to 315 mA) and maintains stable voltage output across −65 °C to +175 °C ambient extremes.
The JANTX1N4962CUS/TR exhibits low dynamic impedance (3.5 Ω @ 75 mA), tight voltage tolerance (±2%), and negligible temperature coefficient (+0.08 %/°C), enabling accurate voltage referencing in analog signal chains and regulated power supplies under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±2% at 75 mA - ensures precise regulation within 0.3 V tolerance for reference-sensitive circuits |
| Power Dissipation | 5 W @ TEC = 140 °C - supports sustained operation in high-power density, conduction-cooled designs |
| Dynamic Impedance (ZZ) | 3.5 Ω @ IZT = 75 mA - minimizes output voltage variation under load transients |
| Max Reverse Leakage (IR) | 5 μA @ VR = 11.4 V - guarantees low quiescent current in standby or low-power modes |
| Operating Temperature | −65 °C to +175 °C - enables deployment in aerospace, downhole, and military vehicle environments |
| Thermal Resistance (RθJC) | 7 °C/W junction-to-end-cap - allows predictable thermal management using standard PCB copper pads |
| Surge Current (IZSM) | 12 A @ 8.3 ms - withstands short-duration line transients without degradation |
Pinout & Package
Package: Hermetically sealed voidless glass "E" package (also designated D-5B), with copper end caps finished in Sn/Pb, cathode indicated by band, weight 539 mg, tape-and-reel compliant per EIA-481-B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration; carries full regulator current during breakdown |
| Cathode | Zener breakdown terminal | Marked with band; connected to higher-potential node; defines regulated output voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/356 Qualified (JANTX) | Meets military screening, testing, and traceability requirements for Class H reliability applications |
| Voidless Hermetic Glass Construction | Eliminates internal delamination risk and moisture ingress, ensuring >20-year parametric stability in harsh environments |
| Category I Metallurgical Bond | Provides robust interfacial integrity between silicon die and tungsten slug, preventing bond lift under thermal cycling |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands human-body-model discharges ≥15 kV without parameter shift or failure |
| Inherent Radiation Hardness | Validated per Microsemi MicroNote 050 for total ionizing dose (TID) up to 100 krad(Si), suitable for space electronics |
Applications
| Aerospace Power Conditioning | Downhole Instrumentation Reference |
|---|---|
Use Scenario: Regulating bias voltages for op-amps and ADCs in satellite power distribution units exposed to wide thermal swings and radiation. IC Role / Device Role / Timing Role: Precision voltage reference and shunt regulator maintaining stable 15 V rail despite input ripple and temperature drift. Use Value: Delivers ±2% accuracy and <0.1%/°C TC over −65 °C to +125 °C, eliminating need for external trimming or compensation circuitry. |
Use Scenario: Providing stable reference for pressure sensor excitation and signal conditioning in oil/gas well logging tools operating at 175 °C. IC Role / Device Role / Timing Role: High-temperature Zener shunt regulator establishing fixed 15 V reference for analog front-end circuitry. Use Value: Maintains regulation integrity at +175 °C junction temperature with only 0.08 %/°C TC, avoiding calibration drift in deep-well deployments. |
| Military Avionics Voltage Clamping | Radiation-Hardened Test Equipment |
Use Scenario: Protecting sensitive analog inputs in flight control computers from transient overvoltage events on 28 V DC bus lines. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting voltage spikes to ≤15.5 V while absorbing 12 A surge currents. Use Value: Survives repeated 8.3 ms surges per MIL-STD-461 without parameter shift, due to robust glass-metal hermetic seal and tungsten slug thermal path. |
Use Scenario: Serving as primary voltage reference in ground-based radiation test chambers where gamma/x-ray exposure degrades conventional references. IC Role / Device Role / Timing Role: Radiation-tolerant Zener reference generating stable 15 V for calibration standards and metrology subsystems. Use Value: Exhibits no measurable TID-induced VZ shift up to 100 krad(Si), certified per MicroNote 050, enabling traceable measurements in irradiated environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4962CUS/TR | Higher screening level (JANTXV vs JANTX); tighter lot acceptance testing, extended burn-in, and enhanced radiation assurance documentation | Required for Class K or space-qualified programs demanding zero defects and full radiation test reports | Select JANTXV version when mission-critical systems require documented radiation test data and extended life testing beyond JANTX baseline |
| 1N4962CUS/TR (non-JANTX) | No military screening; commercial-grade reliability, no MIL-PRF-19500 qualification, wider temp range not guaranteed | Suitable for industrial prototypes or non-mission-critical avionics where cost sensitivity outweighs long-term reliability demands | Choose commercial variant only for bench validation or non-flight hardware where MIL-spec compliance is not contractually mandated |
Compared with JANTX1N4962CUS/TR, the JANTXV variant adds verified radiation test reports and extended screening but shares identical electrical specs and package; the commercial 1N4962CUS/TR omits military qualification and thermal/radiation guarantees, making it unsuitable for deployed high-reliability systems.
Availability
JANTX1N4962CUS/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, downhole instrumentation reference, and military avionics voltage clamping requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4962CUS/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 manufacturer specializing in high-reliability, radiation-hardened, and defense-qualified components.
The JANTX1N4962CUS/TR belongs to Microsemi's legacy MIL-PRF-19500/356 Zener diode product line, engineered specifically for mission-critical voltage regulation in aerospace, defense, and energy exploration systems.
FAQ
What is the Zener voltage tolerance for JANTX1N4962CUS/TR?
The JANTX1N4962CUS/TR has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its nominal 15 V Zener voltage is guaranteed between 14.7 V and 15.3 V when tested at 75 mA under standard conditions. The tolerance remains valid across the full −65 °C to +175 °C operating temperature range, as confirmed in the SD44A datasheet revision E.
Does JANTX1N4962CUS/TR require derating above 140 °C end-cap temperature?
Yes, JANTX1N4962CUS/TR must be linearly derated above 140 °C end-cap temperature, reaching zero power dissipation at +175 °C. Its specified 5 W rating applies only at TEC = 140 °C; for example, at 155 °C end-cap temperature, maximum allowable power drops to 3.75 W. This derating curve is defined in the Maximum Ratings table of the SD44A datasheet.
Is JANTX1N4962CUS/TR compatible with lead-free solder reflow profiles?
JANTX1N4962CUS/TR features Sn/Pb-finished copper end caps and is qualified for tin-lead soldering per MIL-STD-202. It is not characterized for lead-free reflow (e.g., SAC305 peak at 260 °C); use with lead-free processes requires validation of glass-to-metal seal integrity and thermal shock resistance per MIL-STD-750 Method 2032.
What is the maximum reverse leakage current for JANTX1N4962CUS/TR at 11.4 V?
The maximum reverse leakage current for JANTX1N4962CUS/TR is 5 μA at VR = 11.4 V and 25 °C, as specified in the Electrical Characteristics table. This value remains ≤10 μA across the full −65 °C to +125 °C operating range, supporting ultra-low-power bias networks in battery-backed instrumentation.
How does the radiation hardness of JANTX1N4962CUS/TR compare to commercial Zeners?
JANTX1N4962CUS/TR demonstrates inherent radiation hardness validated per Microsemi MicroNote 050, with no measurable Zener voltage shift up to 100 krad(Si) TID. Commercial Zeners lack this characterization and typically degrade significantly above 10 krad(Si), making JANTX1N4962CUS/TR uniquely suitable for space and nuclear instrumentation where radiation tolerance is non-negotiable.
JANTX1N4962CUS/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):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 11.4 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
JANTX1N4962CUS/TR FAQ
1.How can I place an order for JANTX1N4962CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4962CUS/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 JANTX1N4962CUS/TR reliable?
The price and inventory of JANTX1N4962CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4962CUS/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4962CUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4962CUS/TR transactions.
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JANTX1N4962CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4962CUS/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 JANTX1N4962CUS/TR?
For technical support, including JANTX1N4962CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4962CUS/TR requirements.
6.How does Aetrix verify that JANTX1N4962CUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4962CUS/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 JANTX1N4962CUS/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4962CUS/TR?
All JANTX1N4962CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4962CUS/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 JANTX1N4962CUS/TR part is unused and in its original packaging.
Return procedure for JANTX1N4962CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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