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Microchip Technology JANTX1N4148UBCA/TR
- Part No.:
- JANTX1N4148UBCA/TR
- Manufacturer:
- Microchip Technology
- Category:
- Diode Arrays
- Package:
- 3-SMD, No Lead
- Datasheet:
-
JANTX1N4148UBCA/TR.pdf
- Description:
- DIODE ARRAY GP 75V 200MA UB
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
JANTX1N4148UBCA/TR from Microsemi is a military-qualified surface-mount switching diode in UB ceramic package with common-anode polarity, 75 V peak reverse voltage, 200 mA average forward current, and 5 ns reverse recovery time, used in high-frequency RS-232/RS-422 interface networks and Ethernet 10 Base-T data lines.
For engineers reviewing the JANTX1N4148UBCA/TR datasheet, JANTX1N4148UBCA/TR pinout, JANTX1N4148UBCA/TR application, or JANTX1N4148UBCA/TR equivalent, key selection criteria include MIL-PRF-19500/116 JANTX qualification level, ceramic UB package thermal resistance (120 °C/W junction-to-solder pad), low 4.0 pF capacitance at 0 V, and unidirectional/common-anode polarity configuration.
Technical Context
This JANTX1N4148UBCA/TR is a silicon planar epitaxial switching diode optimized for high-speed signal routing in harsh-environment systems. Its ceramic UB package provides hermetic sealing and operation from –65 °C to +200 °C, while gold-plated nickel terminals ensure reliable solderability and corrosion resistance under military storage and operational conditions.
The device exhibits 0.8 V forward voltage at 10 mA and 1.2 V at 100 mA, with reverse leakage limited to 25 nA at 20 V and 0.5 µA at 75 V (25 °C). Reverse recovery time is specified at 5 ns under IF = IR = 10 mA, RL = 100 Ω, making it suitable for >10 MHz digital signal clamping and protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage | 75 V - maximum continuous DC reverse bias before breakdown; defines safe operating margin in RS-232 line termination. |
| Reverse Recovery Time | 5 ns - enables clean switching in >10 MHz digital signal paths without tail current distortion. |
| Capacitance @ 0 V | 4.0 pF - minimizes signal loading on high-speed data lines such as Ethernet 10 Base-T differential pairs. |
| Forward Voltage @ 10 mA | 0.8 V max - ensures low power dissipation and minimal voltage drop in logic-level clamping circuits. |
| Junction Temp Range | –65 °C to +200 °C - supports operation in extended-temperature avionics, downhole, and space-grade electronics. |
| Thermal RθJSP | 120 °C/W - enables direct thermal path to PCB solder pad, critical for sustained 200 mA operation in sealed enclosures. |
Pinout & Package
UB package: ceramic surface-mount case with two gold-plated nickel terminals; hermetically sealed; weight < 0.04 g; dimensions per MIL-PRF-19500/116 drawing (BL = 0.115–0.128", BW = 0.085–0.108", BH = 0.046–0.056").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pad 1 | Anode (Common) | Shared anode connection for dual-diode common-anode configuration; referenced to system ground or supply rail in clamp networks. |
| Pad 2 | Cathode 1 | First cathode output; routed to protected signal node (e.g., RS-232 receiver input) for bidirectional ESD clamping. |
| Pad 3 | Cathode 2 | Second cathode output; enables independent clamping of complementary signals (e.g., RS-422 A/B pair) using single device. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/116 JANTX qualification | Validated reliability for defense/aerospace programs requiring lot traceability, burn-in, and radiation-hardened screening. |
| Ceramic UB hermetic package | Eliminates moisture ingress and outgassing risks in vacuum or high-humidity environments; supports 200 °C storage. |
| Common-anode dual-cathode topology | Reduces component count in differential signal protection by integrating two clamping paths in one footprint. |
| Low 25 nA reverse leakage @ 20 V | Preserves signal integrity in high-impedance sensor interfaces and precision analog front-ends without loading error. |
Applications
| RS-232 Interface Protection | Ethernet 10 Base-T Line Clamping |
|---|---|
Use Scenario: Protecting UART transceivers against ESD and line transients in industrial serial communication modules. IC Role / Device Role / Timing Role: Bidirectional clamping diode placed between TX/RX lines and ±12 V rails to shunt surge energy. Use Value: 5 ns trr prevents data corruption during fast edge transitions; 75 V VRWM accommodates RS-232's ±15 V swing with safety margin. | Use Scenario: Signal integrity preservation on twisted-pair Ethernet PHY outputs in embedded network switches. IC Role / Device Role / Timing Role: Low-capacitance (4.0 pF) clamping element tied to MDI lines to suppress common-mode noise without degrading rise/fall times. Use Value: Ceramic UB package withstands reflow and thermal cycling; dual-cathode layout simplifies layout for differential pair symmetry. |
| Avionics Data Bus Termination | Downhole Sensor Signal Conditioning |
Use Scenario: High-reliability termination and transient suppression on ARINC 429 or MIL-STD-1553B data buses in flight control units. IC Role / Device Role / Timing Role: Common-anode dual-diode configured as back-to-back clamps across data lines to limit voltage excursions during lightning-induced surges. Use Value: JANTX qualification ensures full lot traceability and extended temperature operation (–65 °C to +200 °C) required for cabin and engine-mounted electronics. | Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in oil/gas wellhead controllers exposed to extreme thermal gradients. IC Role / Device Role / Timing Role: Low-leakage (25 nA @ 20 V) clamping diode guarding ADC inputs against cable-coupled transients in 24 V loop-powered systems. Use Value: Hermetic ceramic seal prevents electrolyte migration and parameter drift under 200 °C ambient; gold terminations resist sulfidation in H₂S-rich environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-MR150-01 | DO-213AA MELF package; 100 V V(BR); 1.5 A IFSM; no MIL qualification. | Commercial industrial use only; lacks JANTX screening, hermeticity, and extended temperature range. | Select when cost sensitivity outweighs military reliability requirements and board space allows axial/MELF footprint. |
| ON Semiconductor 1N4148W-TP | SOD-123 plastic package; 100 V V(BR); 300 mA IO; RoHS-compliant but not MIL-qualified. | Consumer/commercial designs requiring high-volume SMT assembly; unsuitable for aerospace or downhole deployment. | Choose for non-critical commercial applications where 200 °C operation and hermetic seal are unnecessary. |
Compared with VS-MR150-01 and 1N4148W-TP, JANTX1N4148UBCA/TR uniquely delivers MIL-PRF-19500/116 JANTX qualification, ceramic hermeticity, –65 °C to +200 °C operation, and common-anode dual-cathode topology-enabling single-device differential protection in mission-critical systems where reliability and environmental resilience are non-negotiable.
Availability
JANTX1N4148UBCA/TR is available at Aetrix Electronics and suitable for RS-232 interface protection, Ethernet 10 Base-T line clamping, and avionics data bus termination requiring stable component supply across long-lifecycle defense and industrial programs.
Supply support for JANTX1N4148UBCA/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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, RF solutions, and discrete components for aerospace, defense, and industrial markets.
The JANTX1N4148UBCA/TR belongs to Microsemi's military-qualified discrete diode product line, engineered specifically for high-speed signal integrity and environmental survivability in mission-critical electronic systems.
FAQ
What does the "CA" suffix mean in JANTX1N4148UBCA/TR?
The "CA" suffix in JANTX1N4148UBCA/TR denotes Common Anode polarity configuration. This means the device integrates two diodes sharing a single anode terminal (Pad 1) and separate cathodes (Pads 2 and 3), enabling compact dual-channel clamping in differential signal paths without requiring two discrete diodes. This configuration is explicitly defined in Microsemi's part nomenclature guide for the 1N4148UB family.
Is JANTX1N4148UBCA/TR RoHS compliant?
Yes, JANTX1N4148UBCA/TR is RoHS compliant by design, as confirmed in the official Microsemi T4-LDS-0281-2 datasheet. Compliance is achieved through lead-free gold-plated nickel terminations and halogen-free ceramic packaging materials, meeting EU Directive 2011/65/EU requirements without exemption waivers.
What is the thermal resistance from junction to solder pad (RθJSP) for JANTX1N4148UBCA/TR?
The thermal resistance from junction to solder pad (RθJSP) for JANTX1N4148UBCA/TR is 120 °C/W, per the Maximum Ratings table in the Microsemi datasheet. This value reflects the dominant thermal path through the ceramic package base into the PCB copper pad, and is critical for calculating steady-state junction temperature under 200 mA average forward current at elevated ambient temperatures.
Can JANTX1N4148UBCA/TR replace standard 1N4148 through-hole diodes in new designs?
JANTX1N4148UBCA/TR is not a direct footprint replacement for axial DO-35 1N4148-1 due to its surface-mount UB ceramic package and common-anode dual-diode structure. It replaces the function-not the form-of two discrete 1N4148s in differential protection schemes, requiring PCB layout revision to accommodate the 3-pad UB footprint and leverage its dual-cathode advantage.
What is the reverse recovery time (trr) test condition for JANTX1N4148UBCA/TR?
The reverse recovery time (trr) of 5 ns for JANTX1N4148UBCA/TR is measured under the specific condition: IF = IR = 10 mA, RL = 100 Ω ±5%, as documented in Note 1 of the Electrical Characteristics table. This standardized test setup ensures consistent comparison across qualified switching diodes and validates performance in fast-switching digital interface applications.
JANTX1N4148UBCA/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 3-SMD, No Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 75 V
- Current - Average Rectified (Io) (per Diode):
- 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
- Operating Temperature - Junction:
- -65°C ~ 200°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/116
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- UB
JANTX1N4148UBCA/TR FAQ
1.How can I place an order for JANTX1N4148UBCA/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4148UBCA/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 JANTX1N4148UBCA/TR reliable?
The price and inventory of JANTX1N4148UBCA/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4148UBCA/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4148UBCA/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4148UBCA/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4148UBCA/TR?
JANTX1N4148UBCA/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4148UBCA/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 JANTX1N4148UBCA/TR?
For technical support, including JANTX1N4148UBCA/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4148UBCA/TR requirements.
6.How does Aetrix verify that JANTX1N4148UBCA/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4148UBCA/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 JANTX1N4148UBCA/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4148UBCA/TR?
All JANTX1N4148UBCA/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4148UBCA/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 JANTX1N4148UBCA/TR part is unused and in its original packaging.
Return procedure for JANTX1N4148UBCA/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4148UBCA/TR Tags
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BAV99-7-F
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BAT54C-7-F
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BAV99,215
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BAV70LT1G
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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MMBD1503-TP
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