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Microchip Technology JANTXV1N4958DUS/TR
- Part No.:
- JANTXV1N4958DUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4958DUS/TR.pdf
- Description:
- DIODE ZENER 10V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:7,325
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Product details
Overview
JANTXV1N4958DUS/TR from Microsemi is a military-grade, hermetically sealed surface-mount Zener diode rated for 5 W power dissipation, with nominal Zener voltage of 10.0 V at 125 mA test current, ±5% tolerance, and maximum dynamic impedance of 2.0 Ω at IZT - used in precision voltage regulation for avionics power supplies and radiation-hardened instrumentation.
For engineers reviewing the JANTXV1N4958DUS/TR datasheet, JANTXV1N4958DUS/TR pinout, JANTXV1N4958DUS/TR application, or JANTXV1N4958DUS/TR equivalent, this part delivers verified high-reliability voltage clamping across -65°C to +175°C, meets MIL-PRF-19500/356 Class V requirements, and supports stable operation under ESD stress per MIL-STD-750 Method 1020.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation over wide current (10%–50% of IZM) and temperature ranges. Its voidless-glass hermetic package uses internal Category I metallurgical bonds and triple-layer passivation for long-term stability in harsh environments.
It exhibits low dynamic impedance (2.0 Ω @ 125 mA), low temperature coefficient (+0.07%/°C), and robust surge capability (20 A @ 8.3 ms), enabling use in transient suppression and reference circuits where parameter drift must remain below ±1% over life.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.0 V at 125 mA test current - defines precise regulation point for feedback loops in DC-DC converters. |
| Power Dissipation | 5 W @ TEC = 140°C - enables continuous operation in high-temperature chassis without derating until 175°C junction limit. |
| Dynamic Impedance (ZZ) | 2.0 Ω @ IZT - ensures minimal output voltage variation under load transients in regulated power rails. |
| Max Reverse Leakage (IR) | 25 μA @ 7.6 V - guarantees negligible quiescent current draw in standby-mode systems. |
| Temp Coefficient (αVZ) | +0.07%/°C - limits voltage drift to <±0.8% over full -65°C to +175°C operating range. |
| Surge Current (IZSM) | 20 A @ 8.3 ms - withstands lightning-induced surges in aerospace power entry stages. |
| Forward Voltage (VF) | 1.50 V @ 1.0 A - supports bidirectional clamping when paired with series diode in protection networks. |
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 | Current sink in forward bias; reference node in reverse-bias regulation | Connected to system ground or lower-potential rail to establish stable reference voltage at cathode. |
| Cathode | Regulated output node in reverse breakdown | Provides 10.0 V reference to error amplifiers or overvoltage monitors; marked by visible band on glass body. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass construction | Eliminates moisture ingress and internal delamination, ensuring >20-year shelf life and zero parametric shift in vacuum or high-humidity environments. |
| Category I metallurgical bond | Guarantees mechanical integrity under 20,000 g shock and 20 g RMS vibration per MIL-STD-883, critical for launch vehicle electronics. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands ≥8 kV HBM without degradation - removes need for external ESD protection in board-level design. |
| Radiation hardness (MicroNote 050) | Qualified to 100 krad(Si) TID with no functional failure - suitable for low-earth orbit satellite power conditioning. |
| Triple-layer passivation | Prevents surface conduction paths and leakage growth under ionizing radiation or thermal cycling. |
Applications
| Aerospace Power Regulation | Avionics Reference Supply |
|---|---|
Use Scenario: Primary voltage reference in triple-redundant flight control power modules. IC Role / Device Role / Timing Role: Zener regulator providing 10.0 V reference to analog-to-digital converters and op-amp comparators. Use Value: Maintains ±0.5% reference accuracy over -55°C to +125°C ambient with no calibration drift across 15-year service life. |
Use Scenario: Biasing network for high-side current sense amplifiers in engine monitoring units. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing amplifier supply rails against bus ripple. Use Value: Limits voltage deviation to <±15 mV under 500 mA load step, enabling sub-0.1% current measurement fidelity. |
| Military Radar Signal Conditioning | Satellite Power Sequencing |
Use Scenario: Clamping element in RF front-end protection circuits exposed to EMP pulses. IC Role / Device Role / Timing Role: Fast-response transient suppressor diverting surge energy away from GaAs MMICs. Use Value: Absorbs 20 A 8.3 ms surges without parameter shift, preserving signal chain linearity after repeated events. |
Use Scenario: Reset threshold generator in onboard computer power-on sequencing logic. IC Role / Device Role / Timing Role: Voltage monitor triggering POR (power-on reset) when main bus reaches 10.0 V. Use Value: Delivers deterministic 10.0 V trip point with <100 ns response time and immunity to supply noise up to 200 mVpp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4958US | No TR suffix; bulk packaging instead of tape-and-reel; identical electrical specs and hermetic construction. | Preferred for manual prototyping or low-volume hand-soldered assemblies where reel handling is unnecessary. | Select JANTXV1N4958US only when automated pick-and-place is not required and inventory management favors bulk stock. |
| 1N4958US | Commercial-grade version; lacks JAN/JANTXV qualification, radiation hardness data, and MIL-PRF-19500/356 compliance. | Suitable for non-critical industrial controls but excluded from flight hardware, defense systems, or space-rated designs. | Choose 1N4958US only for cost-sensitive terrestrial applications where extended temperature range and radiation tolerance are not required. |
Compared with JANTXV1N4958US and 1N4958US, JANTXV1N4958DUS/TR provides guaranteed tape-and-reel delivery for SMT production, full military screening (including burn-in and lot acceptance testing), and documented radiation performance - making it the sole option for DO-254-compliant avionics BOMs.
Availability
JANTXV1N4958DUS/TR is available at Aetrix Electronics and suitable for aerospace power regulation, avionics reference supply, military radar signal conditioning, and satellite power sequencing requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4958DUS/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 aerospace, defense, and industrial markets.
JANTXV1N4958DUS/TR belongs to Microsemi's military-qualified Zener diode family designed specifically for mission-critical voltage regulation in environments demanding hermetic sealing, radiation tolerance, and extreme temperature resilience.
FAQ
What is the Zener voltage tolerance for JANTXV1N4958DUS/TR?
JANTXV1N4958DUS/TR has a nominal Zener voltage of 10.0 V with a standard tolerance of ±5%, as specified in the Microsemi SD44A datasheet. This tolerance applies at 25°C and under the defined test current of 125 mA. The "D" suffix in the part number does not indicate tighter tolerance for this variant - tighter tolerances (e.g., ±1% or ±2%) require different suffixes such as "C" or "D" on other family members, but JANTXV1N4958DUS/TR retains the base ±5% spec.
Does JANTXV1N4958DUS/TR meet MIL-PRF-19500/356 requirements?
Yes, JANTXV1N4958DUS/TR is fully qualified to MIL-PRF-19500/356 Class V (JANTXV level), including screening for temperature cycling, steady-state life, and hermeticity. It undergoes lot-by-lot testing per the specification and carries full traceability documentation required for defense and aerospace procurement. The "JANTXV" prefix explicitly denotes this qualification level.
What is the maximum continuous Zener current (IZM) for JANTXV1N4958DUS/TR?
The maximum continuous Zener current IZM for JANTXV1N4958DUS/TR is 475 mA, calculated from its 5 W power rating and 10.0 V Zener voltage (P = V × I). This value is confirmed in the "ELECTRICAL CHARACTERISTICS" table on page 2 of the SD44A datasheet, where IZM is listed as 475 mA for the 1N4958US variant, which shares identical electrical characteristics with JANTXV1N4958DUS/TR.
Is JANTXV1N4958DUS/TR radiation hardened?
Yes, JANTXV1N4958DUS/TR is inherently radiation hard, as documented in Microsemi MicroNote 050. It is qualified to withstand total ionizing dose (TID) up to 100 krad(Si) without functional failure or parametric shift beyond specification limits - a key requirement for low-earth orbit satellite power systems and nuclear instrumentation.
What package type and marking does JANTXV1N4958DUS/TR use?
JANTXV1N4958DUS/TR uses the hermetically sealed "E" package (also known as D-5B), featuring voidless hard glass construction with tungsten slugs and copper end caps finished in Sn/Pb. Per the datasheet, it has no surface marking - polarity is indicated solely by a cathode band on the glass body, and it ships in EIA-481-B compliant tape-and-reel format.
JANTXV1N4958DUS/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):
- 10 V
- Tolerance:
- ±1%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 25 µA @ 7.6 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
JANTXV1N4958DUS/TR FAQ
1.How can I place an order for JANTXV1N4958DUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4958DUS/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 JANTXV1N4958DUS/TR reliable?
The price and inventory of JANTXV1N4958DUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4958DUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4958DUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4958DUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4958DUS/TR?
JANTXV1N4958DUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4958DUS/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 JANTXV1N4958DUS/TR?
For technical support, including JANTXV1N4958DUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4958DUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4958DUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4958DUS/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 JANTXV1N4958DUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4958DUS/TR?
All JANTXV1N4958DUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4958DUS/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 JANTXV1N4958DUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4958DUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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