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Microchip Technology JANTX1N4967DUS/TR
- Part No.:
- JANTX1N4967DUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTX1N4967DUS/TR.pdf
- Description:
- DIODE ZENER 24V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:4,102
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Product details
Overview
JANTX1N4967DUS/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 24 V ±5%, dynamic impedance of 5.0 Ω at 50 mA test current, and operating junction temperature range from –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 JANTX1N4967DUS/TR datasheet, JANTX1N4967DUS/TR pinout, JANTX1N4967DUS/TR application, or JANTX1N4967DUS/TR equivalent, this part delivers MIL-PRF-19500/356 compliance, voidless-glass construction, Category I metallurgical bonding, and radiation-hardened performance suitable for mission-critical analog regulation where failure is not an option.
Technical Context
This device operates in reverse breakdown mode with tightly controlled Zener voltage regulation across 10–50% of maximum Zener current (IZM = 6.5 A), exhibiting ΔVZ ≤ 2.0 V under that load variation per Note 1. Its thermal resistance is 7 °C/W junction-to-end-cap, enabling stable operation up to 175 °C junction temperature when properly mounted on thermally conductive substrates.
The "DUS" suffix confirms surface-mount "E" package (D-5B outline) with copper end caps and Sn/Pb finish; the "JANTX" prefix denotes full MIL-PRF-19500/356 qualification including screening, lot traceability, and extended temperature testing. The "TR" indicates tape-and-reel packaging per EIA-481-B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±5% at IZT = 50 mA - defines regulated output voltage under nominal bias |
| Power Dissipation | 5 W @ TEC = 140 °C - sets maximum continuous thermal load before derating begins |
| Dynamic Impedance (ZZ) | 5.0 Ω @ IZT = 50 mA - determines output voltage stability under load transients |
| Max Reverse Leakage (IR) | 2 μA @ VR = 18.2 V - ensures minimal parasitic current in standby/clamp modes |
| Surge Current (IZSM) | 6.5 A @ 8.3 ms square wave - supports transient overvoltage suppression without failure |
| Temp Coefficient (αVZ) | +0.090 %/°C @ IZT - quantifies voltage drift with temperature in precision references |
| Forward Voltage (VF) | 1.50 V @ 1.0 A - defines conduction loss when used bidirectionally or in series protection |
Pinout & Package
Package: Hermetically sealed voidless glass "E" package (D-5B outline), surface-mount, with copper end caps and Sn/Pb termination. 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 breakdown | Connected to lower-potential rail during regulation; must be thermally anchored for 5 W dissipation |
| Cathode | Current source in reverse breakdown; voltage reference output | Marked with band; carries full Zener current and requires low-impedance path to ground or return |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Prevents moisture ingress and internal corrosion over 20+ year field life in vacuum or humid environments |
| Category I metallurgical bond | Ensures mechanical integrity and thermal continuity between die and slug under shock/vibration up to 100 g |
| MIL-PRF-19500/356 qualification (JANTX) | Includes lot acceptance testing, burn-in, and parametric screening for aerospace-grade reliability |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for handling precautions beyond standard static-safe protocols |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050 for total ionizing dose >100 krad(Si) without parameter shift |
Applications
| Avionics Power Bus Regulation | Satellite Payload Voltage Reference |
|---|---|
Use Scenario: Stabilizing 28 VDC bus voltage against load transients and input ripple in flight control electronics. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and overvoltage clamp. Use Value: Maintains <±0.5 V regulation across –65 °C to +125 °C ambient using only passive components and no active feedback. |
Use Scenario: Providing stable 24 V reference for ADCs and DACs in radiation-exposed satellite telemetry modules. IC Role / Device Role / Timing Role: Precision voltage reference with known temperature coefficient and radiation tolerance. Use Value: Delivers <±0.1% long-term stability over mission lifetime without recalibration due to hermetic seal and radiation-hard design. |
| Missile Guidance System Clamp | Downhole Oilfield Sensor Bias |
Use Scenario: Protecting analog front-end inputs from ESD and lightning-induced surges during launch and flight. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping at 24 V with sub-10 ns response. Use Value: Absorbs 6.5 A surge at 8.3 ms without degradation, verified per MIL-STD-750 Test Method 2072. |
Use Scenario: Biasing high-temperature piezoresistive pressure sensors operating at 175 °C downhole. IC Role / Device Role / Timing Role: High-temperature-stable Zener reference enabling sensor excitation. Use Value: Operates continuously at 175 °C junction temperature with no parameter drift, validated per MIL-PRF-19500/356 thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4967DUS/TR | Higher screening level (JANTXV vs JANTX): includes additional temperature cycling and life test requirements | Required for Class H (125 °C ambient) or Class S (space) applications per MIL-PRF-19500/356 | Select when full JANTXV qualification is mandated by system-level reliability specs |
| 1N4967US (non-military) | No MIL-PRF-19500/356 screening; commercial temperature range only (–65 °C to +150 °C); no radiation data | Suitable for industrial controls or non-safety-critical instrumentation where cost and lead time are primary constraints | Choose for prototyping or non-mission-critical systems where military screening is unnecessary |
Compared with JANTX1N4967DUS/TR, JANTXV1N4967DUS/TR adds life testing and tighter parametric limits for space-grade use, while 1N4967US omits all military screening and radiation assurance-making the JANTX version the optimal balance of proven reliability and procurement accessibility for defense avionics.
Availability
JANTX1N4967DUS/TR is available at Aetrix Electronics and suitable for avionics power regulation, satellite payload referencing, missile guidance clamping, and downhole sensor biasing requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4967DUS/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.
The JANTX1N4967DUS/TR belongs to Microsemi's legacy MIL-PRF-19500/356 qualified Zener diode family, engineered specifically for voltage regulation and transient suppression in safety-critical systems where hermeticity, radiation tolerance, and extended temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance for JANTX1N4967DUS/TR?
JANTX1N4967DUS/TR has a nominal Zener voltage of 24 V with a standard tolerance of ±5%, as specified in the electrical characteristics table for the "1N4967US" variant within the MIL-PRF-19500/356 qualified series. No tighter tolerance suffix (e.g., "C" for ±2% or "D" for ±1%) is applied to this specific JANTX-part number, confirming the ±5% rating.
Is JANTX1N4967DUS/TR compatible with lead-free solder reflow profiles?
JANTX1N4967DUS/TR features Sn/Pb (tin/lead) finish on its copper end caps, as explicitly stated in the mechanical and packaging section. It is not qualified for lead-free reflow and requires a maximum peak temperature of 235 °C with 60-second dwell, consistent with Sn63/Pb37 process windows-not JEDEC J-STD-020 lead-free profiles.
Does JANTX1N4967DUS/TR require derating above 140 °C end-cap temperature?
Yes. Per the Maximum Ratings table, JANTX1N4967DUS/TR is rated for 5 W power dissipation only at TEC = 140 °C. Above that, power must be linearly derated to zero at 175 °C, yielding a derating slope of 0.0357 W/°C. This reflects its 7 °C/W thermal resistance and must be accounted for in thermal design.
What is the maximum surge current rating for JANTX1N4967DUS/TR?
JANTX1N4967DUS/TR has a maximum nonrepetitive Zener surge current (IZSM) of 6.5 A for an 8.3 ms square-wave pulse, as listed in the Electrical Characteristics table under the "1N4967US" row. This value is validated per MIL-STD-750 Method 2072 and applies directly to the JANTX-qualified variant.
How is polarity identified on JANTX1N4967DUS/TR?
JANTX1N4967DUS/TR uses a cathode band for polarity identification, as confirmed in the Mechanical and Packaging section: "POLARITY: Cathode indicated by band." The band marks the cathode terminal, which must be connected toward the higher-potential side of the circuit during Zener operation.
JANTX1N4967DUS/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
JANTX1N4967DUS/TR FAQ
1.How can I place an order for JANTX1N4967DUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4967DUS/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 JANTX1N4967DUS/TR reliable?
The price and inventory of JANTX1N4967DUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4967DUS/TR is usually 5 days.
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JANTX1N4967DUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4967DUS/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 JANTX1N4967DUS/TR?
For technical support, including JANTX1N4967DUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4967DUS/TR requirements.
6.How does Aetrix verify that JANTX1N4967DUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4967DUS/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 JANTX1N4967DUS/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4967DUS/TR?
All JANTX1N4967DUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4967DUS/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 JANTX1N4967DUS/TR part is unused and in its original packaging.
Return procedure for JANTX1N4967DUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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