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Microchip Technology JANTXV1N4968CUS/TR
- Part No.:
- JANTXV1N4968CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4968CUS/TR.pdf
- Description:
- DIODE ZENER 27V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:7,894
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Product details
Overview
JANTXV1N4968CUS/TR from Microsemi is a military-grade, hermetically sealed surface-mount Zener diode rated for 5 W power dissipation, with a nominal Zener voltage of 27 V at 50 mA test current, ±2% tolerance (C suffix), and operating junction temperature range of –65 °C to +175 °C. It serves as a precision voltage reference or regulator in high-reliability aerospace, defense, and downhole instrumentation systems where failure is unacceptable.
For engineers reviewing the JANTXV1N4968CUS/TR datasheet, JANTXV1N4968CUS/TR pinout, JANTXV1N4968CUS/TR application, or JANTXV1N4968CUS/TR equivalent, this part delivers verified radiation-hardened performance, voidless-glass construction, Category III metallurgical bonding, and MIL-PRF-19500/356 qualification - critical for mission-critical analog biasing, overvoltage clamping, and reference stabilization under extreme thermal and radiation stress.
Technical Context
This device operates in reverse breakdown with tightly controlled dynamic impedance (ZZT = 6.0 Ω at IZT = 50 mA) and low temperature coefficient (αVZ = +0.090 %/°C), enabling stable regulation across wide current (10–50% IZM) and temperature excursions. Its triple-layer passivation and nonsensitive ESD design (per MIL-STD-750 Method 1020) ensure robustness in harsh environments.
The JANTXV1N4968CUS/TR uses a hermetically sealed "E" package (D-5B outline) with tungsten slugs and copper end caps finished in Sn/Pb, supporting reflow soldering per EIA-481-B tape-and-reel. Thermal resistance is 10 °C/W junction-to-end-cap, with surge capability of 6.0 A (8.3 ms square wave).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±2% at 50 mA - enables precise 27 V reference generation with minimal drift under load variation |
| Power Dissipation | 5 W @ TEC = 125 °C - supports continuous operation in high-temperature PCB layouts without derating below 125 °C |
| Dynamic Impedance (ZZT) | 6.0 Ω at IZT = 50 mA - ensures low output impedance for stable regulation against ripple and transient load changes |
| Max Reverse Leakage (IR) | 2 μA at VR = 20.6 V - guarantees negligible standby current in high-impedance bias networks |
| Temp Coefficient (αVZ) | +0.090 %/°C - provides predictable, low-drift voltage reference behavior over –65 °C to +175 °C |
| Surge Current (IZSM) | 6.0 A (8.3 ms square wave) - withstands transient overvoltage events without degradation |
| Forward Voltage (VF) | 1.50 V at 1.0 A - defines forward conduction threshold for bidirectional protection configurations |
Pinout & Package
Package: Hermetically sealed voidless glass "E" package (JEDEC D-5B outline), 539 mg weight, cathode indicated by band, Sn/Pb-finished copper end caps.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to ground or lower potential node in shunt regulator configuration |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input supply via series resistor; delivers stable 27 V to load when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates internal moisture and particle migration - ensures >20-year reliability in vacuum and high-humidity environments |
| Category III metallurgical bond | Validated interfacial strength for MIL-PRF-19500/356 Class V applications - prevents delamination under thermal shock |
| Triple-layer passivation | Blocks surface contamination and ion migration - maintains leakage spec stability after 1000 hrs HAST testing |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per MicroNote 050 - suitable for space-grade analog circuits |
| Nonsensitive to ESD | Qualified to MIL-STD-750 Method 1020 - survives ≥4 kV HBM without parameter shift or catastrophic failure |
Applications
| Aerospace Power Conditioning | Downhole Sensor Biasing |
|---|---|
Use Scenario: Regulating reference voltage for ADC front-ends in satellite telemetry modules exposed to thermal cycling and radiation. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 27 V to precision op-amps and voltage references. Use Value: Maintains <±0.5% output stability over –65 °C to +125 °C due to low αVZ and hermetic sealing - prevents data corruption during orbital eclipse phases. |
Use Scenario: Supplying bias voltage to piezoresistive pressure transducers in oil/gas well logging tools operating at 175 °C ambient. IC Role / Device Role / Timing Role: High-temperature Zener clamp protecting downstream signal conditioning circuitry from supply transients. Use Value: Sustains regulation integrity at +175 °C junction temperature with no parametric shift - eliminates recalibration needs during extended downhole runs. |
| Military Avionics Reference | Nuclear Instrumentation |
Use Scenario: Generating calibrated 27 V reference for flight control system sensor interfaces requiring MIL-STD-883 compliance. IC Role / Device Role / Timing Role: Primary voltage standard in redundant analog monitoring chains. Use Value: JANTXV screening ensures zero infant mortality and full lot traceability - meets DO-160 Section 22 lightning-induced transient immunity requirements. |
Use Scenario: Stabilizing detector bias in radiation monitoring equipment deployed in reactor containment zones. IC Role / Device Role / Timing Role: Radiation-hardened voltage reference maintaining accuracy amid neutron flux exposure. Use Value: Inherent TID tolerance per MicroNote 050 avoids post-irradiation calibration drift - sustains measurement fidelity over multi-year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4968CUS | No TR suffix - bulk packaging instead of tape-and-reel; identical electrical specs and screening | Preferred for manual prototyping or low-volume hand-soldered assemblies | Select JANTXV1N4968CUS/TR for automated SMT production; choose JANTXV1N4968CUS for bench evaluation or small-batch builds |
| JANS1N4968CUS/TR | Higher screening level (JANS vs JANTXV): includes burn-in, 100% parametric testing, and extended environmental stress screening | Required for Class S spaceflight hardware per MIL-PRF-19500/356 Appendix A | Choose JANS1N4968CUS/TR only when full space-qualified assurance is mandated; JANTXV1N4968CUS/TR satisfies most defense-grade requirements |
Compared with JANTXV1N4968CUS/TR, the JANTXV1N4968CUS offers identical performance in bulk form but lacks tape-and-reel logistics for pick-and-place, while the JANS1N4968CUS/TR adds cost and lead time for ultra-high-reliability validation beyond typical JANTXV use cases.
Availability
JANTXV1N4968CUS/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, downhole sensor biasing, and military avionics reference applications requiring stable component supply, long-term obsolescence management, and full MIL-PRF-19500 traceability.
Supply support for JANTXV1N4968CUS/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 components for aerospace, defense, and industrial markets, with emphasis on radiation-hardened, high-temperature, and hermetically sealed solutions.
The JANTXV1N4968CUS/TR belongs to Microsemi's military-qualified Zener diode family engineered for fail-safe voltage regulation in mission-critical systems where parameter stability under extreme thermal, mechanical, and radiation stress is non-negotiable.
FAQ
What is the Zener voltage tolerance of JANTXV1N4968CUS/TR?
The JANTXV1N4968CUS/TR has a nominal Zener voltage of 27 V with ±2% tolerance, indicated by the "C" suffix in the part number. This tolerance is guaranteed over the full operating temperature range (–65 °C to +175 °C) and at the specified test current of 50 mA, as validated per MIL-PRF-19500/356 screening requirements.
Is JANTXV1N4968CUS/TR compatible with lead-free reflow processes?
No - JANTXV1N4968CUS/TR features Sn/Pb-finished copper end caps and is qualified for tin-lead soldering only. Its maximum peak reflow temperature is limited to 235 °C per MIL-STD-202 Method 210, and exposure to lead-free reflow profiles (>260 °C) risks metallurgical degradation and hermetic seal compromise.
What does the "TR" suffix signify in JANTXV1N4968CUS/TR?
The "TR" suffix denotes tape-and-reel packaging per EIA-481-B standard, enabling automated surface-mount assembly. Each reel contains 500 units, with carrier tape pitch of 12 mm and pocket depth optimized for the D-5B package outline. The "TR" version shares identical electrical and screening specifications with the bulk-packaged JANTXV1N4968CUS.
How does JANTXV1N4968CUS/TR achieve radiation hardness?
JANTXV1N4968CUS/TR achieves inherent radiation hardness through its voidless hermetic glass construction and silicon die processing optimized for total ionizing dose (TID) resilience. Microsemi documents this behavior in MicroNote 050, confirming no functional degradation up to 100 krad(Si) - a property derived from material selection and process control, not external shielding.
What is the maximum continuous Zener current for JANTXV1N4968CUS/TR?
The maximum continuous Zener current (IZM) for JANTXV1N4968CUS/TR is 6.0 A, calculated from its 5 W power rating and 27 V Zener voltage (IZM = PZ / VZ ≈ 5 W / 27 V). This value assumes operation at TEC = 125 °C; derating is linear to zero at +175 °C per the datasheet's thermal curve.
JANTXV1N4968CUS/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):
- 27 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 20.6 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
JANTXV1N4968CUS/TR FAQ
1.How can I place an order for JANTXV1N4968CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4968CUS/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 JANTXV1N4968CUS/TR reliable?
The price and inventory of JANTXV1N4968CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4968CUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4968CUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4968CUS/TR transactions.
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4.How is shipping managed for JANTXV1N4968CUS/TR?
JANTXV1N4968CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4968CUS/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 JANTXV1N4968CUS/TR?
For technical support, including JANTXV1N4968CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4968CUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4968CUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4968CUS/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 JANTXV1N4968CUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4968CUS/TR?
All JANTXV1N4968CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4968CUS/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 JANTXV1N4968CUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4968CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4968CUS/TR Tags
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