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Microchip Technology JAN1N4148UBD/TR
- Part No.:
- JAN1N4148UBD/TR
- Manufacturer:
- Microchip Technology
- Category:
- Diode Arrays
- Package:
- 3-SMD, No Lead
- Datasheet:
-
JAN1N4148UBD/TR.pdf
- Description:
- DIODE ARRAY GP 75V 200MA UB
- Quantity:
- Payment:
- Shipping:
Inventory:8,365
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Product details
Overview
JAN1N4148UBD/TR from Microsemi is a military-qualified surface-mount silicon switching diode in the UB package, featuring 75 V peak reverse voltage, 200 mA average forward current, 5 ns reverse recovery time, and 4.0 pF capacitance at 0 V - used in high-frequency data line protection and RS-232 interface circuits.
For engineers reviewing the JAN1N4148UBD/TR datasheet, JAN1N4148UBD/TR pinout, JAN1N4148UBD/TR application, or JAN1N4148UBD/TR equivalent, key selection criteria include MIL-PRF-19500/116 JAN-level qualification, ceramic-body thermal robustness (–65 °C to +200 °C), low-leakage performance at 75 V, and compatibility with automated SMT assembly for space-constrained avionics and defense systems.
Technical Context
This diode implements a planar-diffused silicon PN junction optimized for fast transient response and minimal charge storage. Its ceramic UB package provides hermetic sealing and superior thermal resistance (120 °C/W junction-to-solder pad), enabling reliable operation in extended temperature environments without derating below 75 °C ambient.
The device supports unidirectional polarity per standard nomenclature (no CA/CC/D suffix), and its electrical behavior is defined under strict MIL-PRF-19500/116 test conditions - including IR ≤ 25 nA at 20 V, VF ≤ 0.8 V at 10 mA, and trr ≤ 5 ns with IF = IR = 10 mA and RL = 100 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage (VRWM) | 75 V - maximum continuous DC reverse bias before significant leakage or breakdown in signal routing paths |
| Reverse Recovery Time (trr) | 5 ns - enables clean switching up to ~70 MHz in digital logic clamping and pulse shaping |
| Junction Temperature Range | –65 °C to +200 °C - supports operation in missile guidance, radar, and downhole electronics |
| Capacitance (C, VR = 0 V) | 4.0 pF - minimizes signal distortion on high-speed data lines like RS-422 and Ethernet 10Base-T |
| Forward Voltage (VF @ 10 mA) | ≤ 0.8 V - reduces power loss and self-heating in low-voltage, high-density PCB layouts |
| Average Forward Current (IO) | 200 mA @ TA = 75 °C - defines sustained conduction capability in level-shifting and protection circuits |
Pinout & Package
Ceramic surface-mount UB package (2-pin, unidirectional), gold-plated nickel terminals, hermetically sealed, weight < 0.04 g. Dimensions: 3.25 mm × 2.74 mm × 1.42 mm (L × W × H) per MIL-PRF-19500/116 drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pad 1) | Forward current entry point | Connected to higher-potential node in clamping, steering, or logic isolation functions |
| Cathode (Pad 2) | Forward current exit point | Typically tied to reference ground or lower-potential rail for bidirectional ESD suppression |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/116 JAN qualification | Validated reliability for aerospace and defense programs requiring full lot traceability and screening |
| Ceramic UB package | Hermetic seal ensures long-term stability in humid, corrosive, or vacuum environments |
| 5 ns reverse recovery time | Enables use in >50 MHz clock line conditioning and high-speed serial data path protection |
| 4.0 pF junction capacitance | Preserves signal integrity on 100 Ω differential pairs without added impedance discontinuity |
| RoHS-compliant by design | No lead, cadmium, or halogen content - meets DoD Directive 4140.01 and EU RoHS 2011/65/EU |
Applications
| Radar Pulse Clamping | RS-232 Transceiver Protection |
|---|---|
Use Scenario: Protecting receiver front-end amplifiers from high-voltage radar transmit pulses in T/R modules. IC Role / Device Role / Timing Role: Fast-switching clamp diode shunting transient energy to ground during transmit phase. Use Value: 5 ns trr and 100 V breakdown prevent latch-up or burnout while preserving receive-band sensitivity. | Use Scenario: Guarding UART-level RS-232 drivers against ESD and cable-induced surges in field-deployed terminals. IC Role / Device Role / Timing Role: Unidirectional signal-path protector absorbing ±15 kV contact discharge per IEC 61000-4-2. Use Value: 25 nA IR at 20 V ensures negligible loading on ±12 V logic thresholds during idle states. |
| Ethernet 10Base-T Line Filtering | Avionics Data Bus Level Shifting |
Use Scenario: Filtering common-mode noise on twisted-pair Ethernet PHY interfaces in airborne network nodes. IC Role / Device Role / Timing Role: Low-capacitance signal diode in RC snubber networks across transformer-coupled lines. Use Value: 4.0 pF capacitance avoids resonance shift in 10 MHz baseband signaling and maintains IEEE 802.3 compliance. | Use Scenario: Translating logic levels between 3.3 V FPGA I/O and 5 V legacy bus controllers in flight control computers. IC Role / Device Role / Timing Role: Passive level translator using forward-biased conduction with minimal propagation delay. Use Value: 0.8 V VF at 10 mA enables sub-10 ns edge transition times without active buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4148UB | Higher screening grade (JANTXV vs. JAN); tighter IR limit (0.5 µA @ 75 V vs. 25 nA @ 20 V) | Required for mission-critical flight hardware where burn-in and radiation tolerance are mandated | Select when full MIL-PRF-19500/116 JANTXV screening and extended life testing are contractually required |
| 1N4148UR-1 (MELF) | DO-213AA glass MELF package; same electrical specs but higher RθJA (350 °C/W) and no hermetic seal | Suitable for commercial industrial controls but not for humidity-prone or vacuum environments | Choose for cost-sensitive, non-military applications where ceramic hermeticity is unnecessary |
Compared with JAN1N4148UBD/TR, JANTXV1N4148UB offers enhanced reliability screening for flight-critical subsystems, while 1N4148UR-1 trades hermeticity and thermal performance for lower cost and broader commercial availability - both require layout review due to differing footprints and thermal management needs.
Availability
JAN1N4148UBD/TR is available at Aetrix Electronics and suitable for radar pulse clamping, RS-232 transceiver protection, and Ethernet 10Base-T line filtering requiring stable component supply across extended temperature and high-reliability programs.
Supply support for JAN1N4148UBD/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 RF semiconductors for aerospace, defense, and industrial markets.
The JAN1N4148UBD/TR belongs to Microsemi's military-grade switching diode product line, engineered specifically to meet MIL-PRF-19500/116 requirements for ruggedized, hermetically sealed signal routing in harsh-environment electronics.
FAQ
What does the "JAN" prefix signify for JAN1N4148UBD/TR?
The "JAN" prefix indicates that JAN1N4148UBD/TR is qualified to the lowest military reliability level under MIL-PRF-19500/116 - including lot traceability, temperature cycling, and hermeticity testing. It is distinct from commercial 1N4148 variants and certifies suitability for defense and aerospace applications where baseline screening is mandatory.
Is JAN1N4148UBD/TR RoHS compliant?
Yes, JAN1N4148UBD/TR is RoHS compliant by design, containing no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE per EU Directive 2011/65/EU and DoD Directive 4140.01. This compliance is maintained without compromising the ceramic package's hermetic integrity or thermal performance.
What is the thermal resistance of JAN1N4148UBD/TR, and how does it affect PCB layout?
JAN1N4148UBD/TR has a junction-to-solder-pad thermal resistance (RθJSP) of 120 °C/W. This value requires direct thermal connection of Pad 2 (cathode) to a minimum 10 mm² copper pour for sustained 200 mA operation at 75 °C ambient - unlike plastic SMD diodes, its ceramic body limits heat spreading, making localized copper area critical.
Can JAN1N4148UBD/TR replace commercial 1N4148 in existing designs?
JAN1N4148UBD/TR is electrically compatible with JEDEC 1N4148 but requires verification of solder profile compatibility (ceramic vs. plastic CTE), board-level screening requirements, and procurement chain traceability. Its higher cost and longer lead times make it appropriate only where MIL-PRF-19500/116 compliance is contractually enforced.
What polarity configuration does JAN1N4148UBD/TR use?
JAN1N4148UBD/TR uses unidirectional polarity, as indicated by the absence of CA, CC, or D suffixes in its nomenclature. It contains a single anode-cathode junction and is intended for standard forward-biased rectification, clamping, and steering - not for common-anode/cathode arrays or doubler configurations.
JAN1N4148UBD/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 Series Connection
- 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
JAN1N4148UBD/TR FAQ
1.How can I place an order for JAN1N4148UBD/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4148UBD/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 JAN1N4148UBD/TR reliable?
The price and inventory of JAN1N4148UBD/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4148UBD/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4148UBD/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4148UBD/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4148UBD/TR?
JAN1N4148UBD/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4148UBD/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 JAN1N4148UBD/TR?
For technical support, including JAN1N4148UBD/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4148UBD/TR requirements.
6.How does Aetrix verify that JAN1N4148UBD/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4148UBD/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 JAN1N4148UBD/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4148UBD/TR?
All JAN1N4148UBD/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4148UBD/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 JAN1N4148UBD/TR part is unused and in its original packaging.
Return procedure for JAN1N4148UBD/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4148UBD/TR Tags
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