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Microchip Technology JANTX1N914UR-1/TR
- Part No.:
- JANTX1N914UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- DO-213AA
- Datasheet:
-
JANTX1N914UR-1/TR.pdf
- Description:
- SIGNAL OR COMPUTER DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:2,770
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Product details
Overview
JANTX1N914UR-1/TR from Microsemi is a hermetically sealed glass MELF surface-mount switching diode qualified to MIL-PRF-19500/116 JANTX level, with 75 V working peak reverse voltage, 5 ns reverse recovery time, and 0.8 V forward voltage at 10 mA - used in high-speed RS-232 interfaces, Ethernet 10 Base-T steering paths, and transient OR'ing circuits.
For engineers reviewing the JANTX1N914UR-1/TR datasheet, JANTX1N914UR-1/TR pinout, JANTX1N914UR-1/TR application, or JANTX1N914UR-1/TR equivalent, key selection criteria include reverse recovery time, junction temperature range (–65°C to +175°C), low capacitance (4.0 pF at 0 V), DO-213AA package compatibility, and military-grade reliability qualification.
Technical Context
This diode employs metallurgically bonded construction inside a hermetically sealed DO-213AA glass MELF case, enabling stable operation across –65°C to +175°C. Its double-plug terminal design ensures mechanical robustness and thermal performance with RθJEC = 100°C/W.
It delivers fast switching via minimal charge storage: trr = 5 ns (IF = IR = 10 mA, RL = 100 Ω), VF1 = 0.8 V @ 10 mA, and C = 4.0 pF @ 0 V / 1 MHz - making it suitable for sub-10 ns signal path isolation and high-frequency data line clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Package | DO-213AA glass MELF - surface-mount, hermetic, axial symmetry, 0.2 g mass |
| VRWM | 75 V - maximum continuous reverse voltage before breakdown in normal operation |
| trr | 5 ns - enables reliable operation in >20 MHz digital switching and pulse steering |
| VF @ 10 mA | 0.8 V - low forward drop preserves signal swing in logic-level clamping |
| C @ 0 V | 4.0 pF - minimizes capacitive loading on high-speed data lines (e.g., RS-422) |
| TJ Range | –65°C to +175°C - supports extended-temperature avionics and downhole industrial systems |
Pinout & Package
DO-213AA glass MELF package: cylindrical hermetic body with two axial metal endcaps; cathode identified by black band on one endcap; no discrete pins - terminals are solderable endcaps per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode Endcap | Forward current entry point | Solderable copper-clad steel surface; requires COE-matched PCB (≈6 ppm/°C) to prevent thermal stress fracture |
| Cathode Endcap (banded) | Reverse-biased terminal / clamping reference | Marked with black band; serves as common return node in OR'ing and steering configurations |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/116 JANTX qualification | Validated reliability for defense/aerospace programs requiring lot traceability and screening per MIL-STD-750 |
| Metallurgical bonding | Eliminates wire bonds - improves vibration resistance and thermal cycling endurance vs. epoxy-packaged diodes |
| Double-plug construction | Enables symmetric thermal dissipation and consistent solder joint formation on both ends |
| Low C and fast trr | 4.0 pF capacitance + 5 ns recovery supports clean edge integrity in 10–50 Mbps serial links |
Applications
| RS-232 Interface Protection | Ethernet 10 Base-T Steering |
|---|---|
Use Scenario: Bidirectional ESD and overvoltage protection on RS-232 driver/receiver lines in industrial PLCs. IC Role / Device Role / Timing Role: Low-capacitance steering diode routing transients away from UART transceivers. Use Value: 4.0 pF capacitance avoids signal rise-time degradation; 75 V VRWM withstands ±15 V RS-232 rail excursions. | Use Scenario: Signal path isolation between PHY and magnetics in 10 Base-T Ethernet ports. IC Role / Device Role / Timing Role: High-speed blocking diode preventing backfeed during link negotiation pulses. Use Value: 5 ns trr ensures <1% distortion on 10 Mbps Manchester-encoded signals; DO-213AA footprint saves board space. |
| Transient OR'ing Circuit | Logic Array Clamp Diode |
Use Scenario: Redundant power rail selection in avionics subsystems where failure of primary supply must not disrupt secondary. IC Role / Device Role / Timing Role: Fast-recovery diode enabling seamless switchover without output droop or latch-up. Use Value: 200 mA average current rating and 2 A surge capability handle brief load transients; –65°C to +175°C range matches aircraft environmental specs. | Use Scenario: Input clamping on TTL/CMOS logic gates exposed to external signal lines in test equipment. IC Role / Device Role / Timing Role: Low-VF signal limiter preventing input stage damage while minimizing propagation delay. Use Value: 0.8 V VF at 10 mA limits clamp voltage below 1.2 V, preserving noise margin; 25 nA IR at 20 V ensures negligible leakage in high-impedance nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4148WS-7-F | Commercial-grade SOD-323 package; trr = 4 ns, VF = 0.72 V @ 10 mA, C = 4 pF - but only rated to +150°C TJ and unqualified to MIL-PRF-19500 | Not suitable for JANTX-requiring programs; acceptable for commercial Ethernet PHY designs with tighter layout constraints | Select when cost and size outweigh military qualification needs |
| JANTXV1N914UR-1 | Same DO-213AA package and electrical specs, but qualified to higher JANTXV reliability level (including 100% burn-in and extended life testing) | Required for flight-critical avionics where failure rate must meet MIL-HDBK-217F predictions | Select when system FMEA mandates JANTXV screening and enhanced lot acceptance testing |
Compared with JANTX1N914UR-1/TR, the 1N4148WS-7-F offers slightly faster trr but lacks military qualification and extended temperature support, while JANTXV1N914UR-1 provides identical performance with stricter reliability screening - making the original JANTX grade optimal for cost-sensitive defense subsystems needing MIL-PRF-19500 compliance without JANTXV overhead.
Availability
JANTX1N914UR-1/TR is available at Aetrix Electronics and suitable for RS-232 interface protection, Ethernet 10 Base-T steering, and transient OR'ing applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANTX1N914UR-1/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 Corporation (now part of Microchip Technology) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The 1N914UR family was developed to deliver MIL-qualified, hermetic, fast-switching diodes in compact MELF packages - specifically targeting high-density, high-reliability signal routing in harsh-environment electronics.
FAQ
What is the maximum operating junction temperature for JANTX1N914UR-1/TR?
JANTX1N914UR-1/TR has a specified junction temperature range of –65°C to +175°C. This allows deployment in extreme environments such as avionics bays and downhole oilfield tools. The device maintains electrical stability across this full range, with derating applied above +75°C ambient per Figure 1 in the T4-LDS-0279-1 datasheet. Thermal resistance junction-to-endcap is 100°C/W, supporting effective heat transfer through both endcaps.
Is JANTX1N914UR-1/TR RoHS compliant?
JANTX1N914UR-1/TR is not RoHS compliant - the JANTX-level qualification uses tin/lead plating per MIL-STD-750 Method 2026. RoHS-compliant versions (e3 suffix) are available only in commercial-grade variants (e.g., 1N914UR-1/TR e3), not in JANTX or JANTXV reliability levels. For JANTX1N914UR-1/TR, lead content is intentional and exempt under RoHS Annex III for military applications.
What does the "UR" suffix indicate in JANTX1N914UR-1/TR?
The "UR" suffix in JANTX1N914UR-1/TR denotes the DO-213AA glass MELF package configuration - distinguishing it from axial-leaded DO-35 variants (e.g., JANTX1N914). It confirms hermetic sealing, metallurgical bonding, and double-plug construction per MIL-PRF-19500/116. The "-1/TR" indicates tape-and-reel packaging per EIA-296 standard, optimized for automated SMT placement.
How does JANTX1N914UR-1/TR compare to standard 1N4148 in switching performance?
JANTX1N914UR-1/TR matches or exceeds 1N4148 in key switching parameters: trr = 5 ns (vs. typical 4 ns for 1N4148), VF = 0.8 V @ 10 mA (vs. 0.72 V), and C = 4.0 pF (vs. ~4 pF). Its critical advantage is MIL-PRF-19500/116 JANTX qualification, extended temperature range (–65°C to +175°C vs. –65°C to +150°C), and hermetic DO-213AA construction - making JANTX1N914UR-1/TR suitable for mission-critical systems where 1N4148 is not approved.
Can JANTX1N914UR-1/TR be used in place of JANTXV1N914UR-1?
JANTX1N914UR-1/TR shares identical electrical specs, package, and DO-213AA mechanical form with JANTXV1N914UR-1, but lacks the JANTXV-level screening (e.g., 100% burn-in, extended life testing, and tighter parametric limits). It is acceptable for non-flight-critical subsystems where JANTX qualification suffices. Substitution requires review of system-level reliability requirements - JANTXV is mandatory for applications governed by MIL-STD-883 Class B or NASA EEE-INST-002.
JANTX1N914UR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 75 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 20 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 75 V
- Capacitance @ Vr, F:
- 4pF @ 0V, 1MHz
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/116
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
- Operating Temperature - Junction:
- -65°C ~ 200°C
JANTX1N914UR-1/TR FAQ
1.How can I place an order for JANTX1N914UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N914UR-1/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 JANTX1N914UR-1/TR reliable?
The price and inventory of JANTX1N914UR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N914UR-1/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N914UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N914UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N914UR-1/TR?
JANTX1N914UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N914UR-1/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 JANTX1N914UR-1/TR?
For technical support, including JANTX1N914UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N914UR-1/TR requirements.
6.How does Aetrix verify that JANTX1N914UR-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N914UR-1/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 JANTX1N914UR-1/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N914UR-1/TR?
All JANTX1N914UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N914UR-1/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 JANTX1N914UR-1/TR part is unused and in its original packaging.
Return procedure for JANTX1N914UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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