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Microchip Technology JANTXV1N4962DUS/TR
- Part No.:
- JANTXV1N4962DUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4962DUS/TR.pdf
- Description:
- DIODE ZENER 15V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:4,569
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Product details
Overview
JANTXV1N4962DUS/TR from Microsemi is a military-qualified, voidless 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 ±5%, 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 supply rails for aerospace avionics and radiation-hardened instrumentation.
For engineers reviewing the JANTXV1N4962DUS/TR datasheet, JANTXV1N4962DUS/TR pinout, JANTXV1N4962DUS/TR application, or JANTXV1N4962DUS/TR equivalent, key selection criteria include its MIL-PRF-19500/356 qualification, hermetic glass package, −65 °C to +175 °C operation, 15 V Zener voltage tolerance, and 5 W thermal derating profile - all critical for mission-critical analog voltage stabilization.
Technical Context
This device belongs to the JANTXV-grade 1N49xxUS series, featuring triple-layer passivation and Category I internal metallurgical bonds per MIL-PRF-19500/356. Its Zener breakdown mechanism delivers stable regulation across 10%–50% of IZM (315 mA), with voltage change ΔVZ ≤ 1.0 V under that current range.
The "DUS" suffix confirms surface-mount "E" (D-5B) package with copper end caps and Sn/Pb finish; the "TR" denotes tape-and-reel packaging per EIA-481-B. Polarity is marked by cathode band; no marking appears on the body per specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15 V ±5% at IZT = 75 mA - defines regulated output voltage under nominal bias, used for reference stability in feedback loops. |
| Power Dissipation | 5 W @ TEC = 140 °C - maximum continuous power before thermal derating begins; zero at 175 °C junction. |
| Dynamic Impedance ZZ | 3.5 Ω @ IZT = 75 mA - low AC impedance ensures minimal output voltage variation under load transients. |
| Max Reverse Leakage IR | 5 μA @ VR = 11.4 V - confirms tight leakage control below regulation threshold, critical for low-power standby circuits. |
| Thermal Resistance θJC | 7 °C/W junction-to-end-cap - enables accurate thermal modeling when mounted to heat-spreading PCB copper or chassis. |
| Operating Temperature | −65 °C to +175 °C - supports deployment in extreme environments including space vacuum and jet engine bays. |
| Surge Current IZSM | 12 A @ 8.3 ms - withstands short-duration overvoltage events without degradation, e.g., lightning-induced transients. |
Pinout & Package
Package: Hermetically sealed voidless hard glass "E" package (also designated D-5B), with tungsten slugs and copper end caps finished in Sn/Pb. Weight: 539 mg. Cathode indicated by band; no part marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to circuit ground or lower potential node during Zener operation; carries full regulator current. |
| Cathode | Zener breakdown terminal / high-side connection | Connected to unregulated input; maintains stable 15 V relative to anode under reverse bias above VZ. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass construction | Eliminates internal delamination risk and moisture ingress, ensuring long-term parameter stability in humid or vacuum environments. |
| Category I metallurgical bond | Guarantees mechanical integrity of internal junction under shock, vibration, and thermal cycling per MIL-PRF-19500/356. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Enables safe handling and assembly without special grounding protocols, reducing manufacturing yield loss. |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 - suitable for low-dose-rate space applications without additional shielding. |
| Tape-and-reel packaging (EIA-481-B) | Supports automated SMT placement with verified alignment and feed reliability for high-volume production. |
Applications
| Aerospace Power Conditioning | Defense Radar Bias Supply |
|---|---|
Use Scenario: Regulating auxiliary 15 V rail in satellite power management units exposed to thermal cycling and total ionizing dose. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp for DC-DC converter feedback networks. Use Value: Maintains ±5% regulation across −65 °C to +175 °C while surviving 100 krad(Si) TID without parameter shift. |
Use Scenario: Providing stable bias voltage to GaN RF amplifier stages in airborne active electronically scanned array (AESA) radar transceivers. IC Role / Device Role / Timing Role: Precision shunt regulator for gate driver supply rails requiring low noise and transient immunity. Use Value: 3.5 Ω dynamic impedance minimizes ripple coupling into sensitive RF bias paths during pulsed operation. |
| Nuclear Instrumentation | Downhole Oilfield Sensors |
Use Scenario: Reference voltage source in gamma spectroscopy front-end amplifiers deployed inside reactor containment vessels. IC Role / Device Role / Timing Role: High-stability Zener reference for ADC biasing and gain calibration circuits. Use Value: Radiation-hardened construction prevents parametric drift under neutron flux, preserving energy resolution accuracy. |
Use Scenario: Overvoltage protection and voltage clamping in high-temperature (175 °C) pressure/temperature sensor modules deployed at 20,000 ft depth. IC Role / Device Role / Timing Role: Transient voltage suppressor and precision clamp in 24 V industrial bus interface circuits. Use Value: 12 A surge rating handles induced surges from motor switching; 175 °C max operating temperature matches downhole electronics envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4962US | Commercial-grade version; same 15 V/5 W specs but not MIL-PRF-19500 qualified; no JANTXV screening. | Lacks radiation hardness validation and extended temperature screening; unsuitable for flight or nuclear use. | Select only for non-mission-critical terrestrial industrial systems where cost outweighs reliability requirements. |
| JANTX1N4962DUS/TR | Same die and package, but screened to JANTX (not JANTXV) level - lower burn-in and environmental test severity. | Meets MIL-PRF-19500/356 but with reduced life test duration and fewer thermal cycles than JANTXV grade. | Appropriate for ground-based defense systems where full JANTXV qualification is unnecessary but military traceability is required. |
Compared with 1N4962US and JANTX1N4962DUS/TR, JANTXV1N4962DUS/TR provides the highest confidence in long-term parametric stability under combined thermal, radiation, and mechanical stress - essential for systems where field failure is unacceptable.
Availability
JANTXV1N4962DUS/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, defense radar bias supply, and nuclear instrumentation requiring stable component supply with full traceability and extended temperature performance.
Supply support for JANTXV1N4962DUS/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, with emphasis on radiation-hardened and high-temperature operation.
JANTXV1N4962DUS/TR belongs to Microsemi's military-qualified Zener diode family engineered specifically for voltage regulation in mission-critical systems where failure is not an option - including spaceflight, nuclear instrumentation, and tactical radar.
FAQ
What is the Zener voltage tolerance for JANTXV1N4962DUS/TR?
JANTXV1N4962DUS/TR has a nominal Zener voltage of 15 V with a standard tolerance of ±5%, as specified in the Microsemi SD44A datasheet. This tolerance applies at IZT = 75 mA and 25 °C ambient. The "D" suffix in the part number does not indicate tighter tolerance for this variant - only "C" (±2%) and "D" (±1%) suffixes apply to select voltages in other series, not JANTXV1N4962DUS/TR.
Is JANTXV1N4962DUS/TR compatible with lead-free solder reflow profiles?
JANTXV1N4962DUS/TR features Sn/Pb terminations per specification and is not qualified for lead-free reflow. Its copper end caps with tin/lead finish are rated for peak temperatures up to 235 °C. Use of lead-free profiles exceeding 240 °C risks intermetallic formation and bond degradation. For RoHS-compliant alternatives, consult Microchip's current-generation Zener offerings.
Does JANTXV1N4962DUS/TR require derating above 140 °C?
Yes - JANTXV1N4962DUS/TR must be linearly derated above 140 °C end-cap temperature, reaching zero power dissipation at 175 °C. Derating slope is 5 W / 35 °C = 143 mW/°C. This reflects its 7 °C/W thermal resistance and is mandatory for reliability in high-temperature deployments such as downhole or engine-mounted electronics.
What is the forward voltage drop of JANTXV1N4962DUS/TR?
The forward voltage of JANTXV1N4962DUS/TR is specified as 1.50 V at 1.0 A forward current. This value is relevant for reverse-polarity protection or dual-use configurations where the device may conduct forward during fault conditions. It is not used during normal Zener regulation mode.
Can JANTXV1N4962DUS/TR replace axial-leaded 1N4962 in existing designs?
No - JANTXV1N4962DUS/TR uses the surface-mount "E" (D-5B) package and is not a drop-in replacement for axial-leaded 1N4962. The latter requires through-hole mounting and has different thermal and mechanical interfaces. Board redesign and layout changes are required to migrate from axial to surface-mount variants.
JANTXV1N4962DUS/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:
- ±1%
- 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
JANTXV1N4962DUS/TR FAQ
1.How can I place an order for JANTXV1N4962DUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4962DUS/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 JANTXV1N4962DUS/TR reliable?
The price and inventory of JANTXV1N4962DUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4962DUS/TR is usually 5 days.
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Once your JANTXV1N4962DUS/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 JANTXV1N4962DUS/TR?
For technical support, including JANTXV1N4962DUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4962DUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4962DUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4962DUS/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 JANTXV1N4962DUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4962DUS/TR?
All JANTXV1N4962DUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4962DUS/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 JANTXV1N4962DUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4962DUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4962DUS/TR Tags
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