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Microchip Technology JANTXV1N4967DUS/TR
- Part No.:
- JANTXV1N4967DUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4967DUS/TR.pdf
- Description:
- DIODE ZENER 24V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:7,023
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Product details
Overview
JANTXV1N4967DUS/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 24 V ±5%, dynamic impedance of 5.0 Ω at 50 mA test current, and operating junction temperature range of −65 °C to +175 °C. It serves as a precision voltage reference and overvoltage clamp in high-reliability aerospace power conditioning circuits.
For engineers reviewing the JANTXV1N4967DUS/TR datasheet, JANTXV1N4967DUS/TR pinout, JANTXV1N4967DUS/TR application, or JANTXV1N4967DUS/TR equivalent, key selection criteria include its voidless-glass hermetic construction, Category I metallurgical bond, radiation-hardened behavior per MicroNote 050, and compliance with MIL-PRF-19500/356 Class V screening.
Technical Context
This device belongs to the 1N4954US–1N4996US family of surface-mount Zener regulators qualified to MIL-PRF-19500/356. Its Zener breakdown mechanism delivers stable regulation across 10%–50% of IZM (6.5 A), with voltage change ΔVZ ≤ 0.9 V under that current range per Note 1.
The "D" suffix denotes ±1% Zener voltage tolerance; the "US" suffix confirms surface-mount "E" package (D-5B); "JANTXV" indicates full military screening including extended temperature cycling, burn-in, and radiation hardness assurance. Thermal resistance is 7 °C/W junction-to-end-cap.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±1% at IZT = 50 mA - enables precise voltage reference in regulated power supplies requiring tight tolerance. |
| Power Dissipation | 5 W @ TEC = 140 °C - supports continuous operation in high-temperature avionics enclosures without forced cooling. |
| Dynamic Impedance (ZZ) | 5.0 Ω @ IZT = 50 mA - ensures low output impedance for stable regulation under load transients. |
| Max Reverse Leakage (IR) | 2 μA @ VR = 18.2 V - guarantees minimal standby current in battery-backed systems. |
| Junction Temp Range | −65 °C to +175 °C - validated for operation in space-grade thermal environments and jet engine bays. |
| Thermal Resistance | 7 °C/W junction-to-end-cap - allows accurate thermal modeling when mounted to aluminum chassis or heat-spreading pads. |
| Surge Current (8.3 ms) | 6.5 A - withstands lightning-induced transients per MIL-STD-461 CS115 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 rail; must be thermally anchored to minimize junction rise during surge events. |
| Cathode | Zener breakdown terminal | Marked with band; connects to regulated output node; requires low-inductance layout to preserve transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates internal moisture ingress and long-term parameter drift in humid or vacuum environments. |
| Category I metallurgical bond | Ensures mechanical integrity under shock/vibration up to 100 g, critical for launch vehicle electronics. |
| Triple-layer passivation | Prevents surface leakage paths and corrosion on glass-metal interface during salt fog exposure. |
| Nonsensitive to ESD | Withstands ≥4 kV HBM per MIL-STD-750 Method 1020 without parametric shift or failure. |
| Inherent radiation hardness | Qualified per Microsemi MicroNote 050 for total ionizing dose >100 krad(Si) without functional degradation. |
Applications
| Aerospace Power Bus Regulation | Satellite Payload Voltage Reference |
|---|---|
|
Use Scenario: Regulating 28 V DC bus in satellite power distribution units under thermal cycling from −40 °C to +85 °C. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and overvoltage clamp. Use Value: Maintains ±1% output stability across temperature and radiation exposure, eliminating need for active feedback compensation. |
Use Scenario: Providing stable 24 V reference for ADC biasing in star tracker sensor electronics. IC Role / Device Role / Timing Role: Precision voltage reference source with ultra-low leakage (<2 μA). Use Value: Enables <1 LSB error in 16-bit analog measurements despite orbital thermal gradients. |
| Tactical Radio Transceiver Protection | Missile Guidance System Clamp |
|
Use Scenario: Clamping RF amplifier supply rails against ESD and EMP-induced transients in handheld radios. IC Role / Device Role / Timing Role: Transient voltage suppressor with 6.5 A 8.3 ms surge rating. Use Value: Absorbs MIL-STD-461 CS115 pulses without latch-up or parameter shift, preserving RF linearity. |
Use Scenario: Protecting inertial measurement unit (IMU) analog front-end from ignition-induced surges. IC Role / Device Role / Timing Role: High-reliability shunt regulator clamping supply to 24 V during pyro-event transients. Use Value: Survives 100+ shock cycles at 500 g while maintaining Zener voltage within ±1% spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4967US/TR | Same 24 V nominal voltage but ±5% tolerance (no "D" suffix); identical package, screening, and thermal specs. | Acceptable where ±5% regulation is sufficient; lower cost due to relaxed tolerance screening. | Select JANTXV1N4967US/TR if system-level calibration compensates for initial voltage variation. |
| CDLL2400 | Commercial-grade 24 V Zener (±5%), plastic SOD-123 package, 1 W rating, −65 °C to +150 °C rating. | Limited to non-military ground systems; lacks radiation hardness, hermetic seal, and MIL-PRF-19500 qualification. | Use CDLL2400 only in cost-sensitive, non-safety-critical prototypes where full military reliability is not required. |
Compared with JANTXV1N4967US/TR, the JANTXV1N4967DUS/TR provides tighter initial tolerance for reduced calibration overhead; compared with CDLL2400, it delivers hermetic reliability, radiation immunity, and 5× higher power handling for mission-critical deployment.
Availability
JANTXV1N4967DUS/TR is available at Aetrix Electronics and suitable for aerospace power regulation, satellite payload referencing, tactical radio protection, and missile guidance clamping requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4967DUS/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 defense, aerospace, and industrial markets.
The JANTXV1N4967DUS/TR belongs to Microsemi's military-qualified Zener diode product line, engineered specifically for voltage regulation and transient suppression in safety-critical systems operating under extreme environmental stress.
FAQ
What does the "D" suffix mean in JANTXV1N4967DUS/TR?
The "D" suffix in JANTXV1N4967DUS/TR specifies ±1% Zener voltage tolerance at 25 °C, verified per MIL-PRF-19500/356 screening. This tighter tolerance reduces system-level calibration effort compared to the standard ±5% version (JANTXV1N4967US/TR). The JANTXV1N4967DUS/TR maintains identical thermal, mechanical, and reliability specifications as its ±5% counterpart.
Is JANTXV1N4967DUS/TR compatible with lead-free reflow processes?
JANTXV1N4967DUS/TR features Sn/Pb-finished copper end caps and is qualified for soldering using standard tin-lead reflow profiles. It is not characterized for lead-free (Pb-free) reflow; Microsemi documentation explicitly states prior inventory used solid silver end caps with Sn/Pb finish, and no Pb-free qualification data exists for this part. Use JANTXV1N4967DUS/TR only with Sn/Pb assembly processes.
What is the maximum continuous Zener current for JANTXV1N4967DUS/TR?
The maximum continuous Zener current (IZM) for JANTXV1N4967DUS/TR is 6.5 A, derived from its 5 W power rating and 24 V nominal Zener voltage (IZM = PZ/VZ). This value assumes operation at TEC = 140 °C; derating is linear to zero at 175 °C. The JANTXV1N4967DUS/TR sustains this current without parameter shift when properly heatsinked.
Does JANTXV1N4967DUS/TR require external heat sinking?
JANTXV1N4967DUS/TR relies on end-cap conduction for thermal transfer and achieves 7 °C/W junction-to-end-cap thermal resistance. While not requiring discrete heat sinks, optimal performance demands direct metal contact between its copper end caps and a thermally conductive chassis or PCB copper pour. Without such mounting, sustained 5 W operation will exceed the +175 °C junction limit. The JANTXV1N4967DUS/TR datasheet specifies thermal design based on end-cap interface quality.
How is radiation hardness documented for JANTXV1N4967DUS/TR?
Radiation hardness for JANTXV1N4967DUS/TR is documented in Microsemi MicroNote 050, which reports total ionizing dose (TID) survivability exceeding 100 krad(Si) with no functional degradation or Zener voltage shift beyond specification limits. This behavior is inherent to its voidless-glass hermetic construction and Category I metallurgical bond-not an add-on qualification. The JANTXV1N4967DUS/TR leverages this intrinsic property for space and nuclear applications.
JANTXV1N4967DUS/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):
- 24 V
- Tolerance:
- ±1%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 5 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 18.2 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
JANTXV1N4967DUS/TR FAQ
1.How can I place an order for JANTXV1N4967DUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4967DUS/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 JANTXV1N4967DUS/TR reliable?
The price and inventory of JANTXV1N4967DUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4967DUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4967DUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4967DUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4967DUS/TR?
JANTXV1N4967DUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4967DUS/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 JANTXV1N4967DUS/TR?
For technical support, including JANTXV1N4967DUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4967DUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4967DUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4967DUS/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 JANTXV1N4967DUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4967DUS/TR?
All JANTXV1N4967DUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4967DUS/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 JANTXV1N4967DUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4967DUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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