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Microchip Technology JANTX1N4960CUS/TR
- Part No.:
- JANTX1N4960CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTX1N4960CUS/TR.pdf
- Description:
- DIODE ZENER 12V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:2,693
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Product details
Overview
JANTX1N4960CUS/TR from Microsemi is a military-qualified, hermetically sealed surface-mount Zener diode rated for 5 W power dissipation at 140 °C end-cap temperature, with nominal Zener voltage of 12 V ±2% (C suffix), dynamic impedance of 2.5 Ω at 100 mA test current, and operating junction temperature range from –65 °C to +175 °C. It serves as a precision voltage reference and regulation element in high-reliability power supply rails, analog sensor biasing, and overvoltage protection circuits.
For engineers reviewing the JANTX1N4960CUS/TR datasheet, JANTX1N4960CUS/TR pinout, JANTX1N4960CUS/TR application, or JANTX1N4960CUS/TR equivalent, this part delivers verified MIL-PRF-19500/356 compliance, voidless-glass hermetic sealing, Category I metallurgical bonding, and stable regulation across wide current (10–500 mA) and temperature extremes - critical for aerospace, defense, and downhole electronics.
Technical Context
This device operates in reverse breakdown mode with tightly controlled Zener voltage regulation over 10% to 50% of maximum Zener current (IZM = 395 mA), exhibiting ΔVZ ≤ 0.8 V under that load variation. Its low dynamic impedance (2.5 Ω @ IZT = 100 mA) ensures minimal output voltage deviation during transient load changes.
The "E" package (D-5B) uses tungsten slugs and copper end caps with Sn/Pb finish, enabling direct solder attachment without wire bonds. Thermal resistance is 7 °C/W junction-to-end-cap, supporting reliable 5 W operation up to 140 °C end-cap temperature before linear derating to zero at 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.0 V ±2% at 100 mA test current - enables precise 12 V rail stabilization with tight tolerance for reference-sensitive circuits. |
| Power Dissipation | 5 W @ TEC = 140 °C - supports sustained regulation in high-temperature environments without external heatsinking. |
| Dynamic Impedance (ZZ) | 2.5 Ω @ IZT = 100 mA - ensures <25 mV output shift per 10 mA load change, critical for low-noise analog references. |
| Max Reverse Leakage | 0.8 μA @ VR = 9.1 V - guarantees negligible standby current in battery-backed or ultra-low-power monitoring systems. |
| Operating Temperature | –65 °C to +175 °C junction - validated for extended-life deployment in space, avionics, and oilfield instrumentation. |
| Surge Current (8.3 ms) | 18 A peak - withstands repetitive lightning-induced transients and ESD events without degradation. |
| Forward Voltage | 1.50 V @ 1.0 A - allows use as clamping diode in bidirectional protection schemes when forward-biased. |
Pinout & Package
Package: Hermetically sealed voidless glass "E" package (JEDEC D-5B), with tungsten slugs and copper end caps finished in Sn/Pb. Cathode indicated by band. No marking on body. Weight: 539 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node in Zener regulator configuration | Connected to system ground or lower-potential rail; forms return path for Zener current. |
| Cathode | Regulated output node in Zener regulator configuration | Provides stable 12 V output when reverse-biased; must be connected to load and input via series resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates internal moisture and particle migration, ensuring >20-year reliability in vacuum and high-humidity environments. |
| Category I metallurgical bond | Guarantees mechanical integrity under shock/vibration up to 100 g, meeting MIL-STD-883 Method 2002. |
| Triple-layer passivation | Prevents surface leakage and ion contamination, maintaining ZZ stability after 1000 hrs HTOL at 175 °C. |
| Nonsensitive to ESD | Withstands ≥4 kV HBM per MIL-STD-750 Method 1020 without parameter shift or failure. |
| Radiation hardness | Qualified to 100 krad(Si) TID per MicroNote 050 - suitable for low-earth orbit satellite power conditioning. |
Applications
| Aerospace Power Conditioning | Downhole Sensor Biasing |
|---|---|
|
Use Scenario: Regulating reference voltage for ADCs and DACs in satellite telemetry modules exposed to thermal cycling and radiation. IC Role / Device Role / Timing Role: Zener voltage reference providing stable 12 V for precision data converters operating at –55 °C to +125 °C ambient. Use Value: Maintains <±0.5% output drift over full temperature range due to low αVZ (±0.07%/°C) and hermetic stability. |
Use Scenario: Supplying bias voltage to piezoresistive pressure sensors in oil/gas well logging tools operating at 175 °C downhole. IC Role / Device Role / Timing Role: Primary voltage clamp and reference source in high-temp analog front-end circuitry. Use Value: Sustains regulation without parameter degradation at 175 °C junction, validated per MIL-PRF-19500/356 screening. |
| Military Radar Power Rails | Avionics Overvoltage Protection |
|
Use Scenario: Stabilizing +12 V supply for GaN RF amplifier bias networks in airborne radar transceivers. IC Role / Device Role / Timing Role: Shunt regulator absorbing transient energy during pulsed RF operation and load dump events. Use Value: Handles 18 A surge current (8.3 ms) and dissipates 5 W continuously without thermal runaway. |
Use Scenario: Clamping induced transients on 28 V aircraft bus lines during lightning strike simulation tests. IC Role / Device Role / Timing Role: Secondary overvoltage protection element placed downstream of primary TVS diodes. Use Value: Provides precise 12 V clamping threshold with <10 ns response and no wear-out mechanism under repeated surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4960CUS/TR | Higher screening level: JANTXV per MIL-PRF-19500/356 includes burn-in and 100% parametric testing at temperature extremes. | Required for Class H (spaceflight) and Class K (nuclear survivability) programs where zero defect risk is mandated. | Select JANTXV1N4960CUS/TR when full MIL-PRF-19500/356 Class V screening and lot traceability are contractually required. |
| 1N4960US | Commercial-grade version: No military qualification, no screening, wider voltage tolerance (±5%), and reduced temperature range (–65 °C to +150 °C). | Suitable only for non-critical industrial controls or lab equipment where cost outweighs reliability requirements. | Choose 1N4960US only for prototyping or non-mission-critical applications where MIL-spec compliance is not enforced. |
Compared with JANTX1N4960CUS/TR, JANTXV1N4960CUS/TR adds guaranteed single-event burn-in and extended life testing but shares identical electrical specs and package; 1N4960US omits all military screening, reduces thermal capability, and relaxes voltage tolerance - making it unsuitable for deployed aerospace or defense hardware.
Availability
JANTX1N4960CUS/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, downhole sensor biasing, and military radar power rails requiring stable component supply with full traceability, long-lifecycle support, and MIL-PRF-19500/356 compliance.
Supply support for JANTX1N4960CUS/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, high-temperature, and hermetically sealed components.
The JANTX1N4960CUS/TR belongs to Microsemi's legacy MIL-PRF-19500/356 qualified Zener regulator family, engineered specifically for mission-critical voltage reference and regulation in extreme-environment electronics.
FAQ
What is the Zener voltage tolerance for JANTX1N4960CUS/TR?
JANTX1N4960CUS/TR has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This is tighter than the standard ±5% tolerance of base-number variants like JANTX1N4960US/TR, and is verified per MIL-PRF-19500/356 screening at 25 °C with IZT = 100 mA.
Does JANTX1N4960CUS/TR require a heatsink for 5 W operation?
No, JANTX1N4960CUS/TR is rated for 5 W continuous dissipation at an end-cap temperature (TEC) of 140 °C without external heatsinking. Its 7 °C/W junction-to-end-cap thermal resistance enables direct PCB mounting with adequate copper area, per the D-5B pad layout in SD44A.pdf.
Is JANTX1N4960CUS/TR compatible with lead-free reflow processes?
JANTX1N4960CUS/TR features Sn/Pb terminations and is not qualified for lead-free reflow. Its maximum peak reflow temperature is 235 °C (per MIL-STD-202 Method 210), below typical SAC305 profiles. For RoHS-compliant assembly, consult Microchip's qualified alternatives such as the JANS1N4960CUS/TR variant with matte tin finish.
What is the maximum surge current rating for JANTX1N4960CUS/TR?
JANTX1N4960CUS/TR is rated for 18 A peak nonrepetitive surge current at an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table on page 2 of SD44A.pdf. This value is validated per MIL-STD-750 Method 3011.
How does the temperature coefficient of JANTX1N4960CUS/TR affect regulation stability?
JANTX1N4960CUS/TR has a temperature coefficient (αVZ) of ±0.07%/°C at IZT = 100 mA, meaning its Zener voltage drifts less than ±0.84 V over a 120 °C span (–65 °C to +55 °C). This low drift supports stable reference performance in unregulated thermal environments.
JANTX1N4960CUS/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):
- 12 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 9.1 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
JANTX1N4960CUS/TR FAQ
1.How can I place an order for JANTX1N4960CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4960CUS/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 JANTX1N4960CUS/TR reliable?
The price and inventory of JANTX1N4960CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4960CUS/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4960CUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4960CUS/TR transactions.
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4.How is shipping managed for JANTX1N4960CUS/TR?
JANTX1N4960CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4960CUS/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 JANTX1N4960CUS/TR?
For technical support, including JANTX1N4960CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4960CUS/TR requirements.
6.How does Aetrix verify that JANTX1N4960CUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4960CUS/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 JANTX1N4960CUS/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4960CUS/TR?
All JANTX1N4960CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4960CUS/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 JANTX1N4960CUS/TR part is unused and in its original packaging.
Return procedure for JANTX1N4960CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4960CUS/TR Tags
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