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Microchip Technology JAN1N5194UR/TR
- Part No.:
- JAN1N5194UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- DO-213AA
- Datasheet:
-
JAN1N5194UR/TR.pdf
- Description:
- SIGNAL OR COMPUTER DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:3,840
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Product details
Overview
JAN1N5194UR/TR from Microsemi is a hermetically sealed, metallurgically bonded switching diode qualified to MIL-PRF-19500/118, with 70 V DC reverse voltage rating, 200 mA maximum operating current, and 500 mW power dissipation at 25°C - used in high-reliability military power supply clamping and transient suppression circuits.
For engineers reviewing the JAN1N5194UR/TR datasheet, JAN1N5194UR/TR pinout, JAN1N5194UR/TR application, or JAN1N5194UR/TR equivalent, key selection factors include its MIL-qualified DO-213AA glass package, 1.0 V max forward voltage at 100 mA, 0.025 µA max reverse leakage at 70 V, -65°C to +175°C operating temperature range, and surge current capability of 2 A (8.3 ms sine).
Technical Context
This diode employs double-plug construction and metallurgical bonding for enhanced thermal stability and reliability under extreme environmental stress. Its hermetic glass package (DO-213AA) ensures long-term moisture and gas barrier integrity required for aerospace and defense electronics.
Designed for fast switching in high-temperature environments, it maintains specified VF and IR across -55°C to +150°C ambient, with thermal impedance ≤70°C/W enabling operation up to +175°C junction temperature when properly heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DC Reverse Voltage (VRWM) | 70 V - defines maximum continuous reverse-bias voltage before significant leakage or breakdown |
| Max Operating Current (IF) | 200 mA - steady-state forward current limit for reliable conduction without thermal runaway |
| Forward Voltage (VF) | 1.0 V max at 100 mA, 25°C - determines conduction loss and self-heating in series-switching paths |
| Reverse Leakage (IR) | 0.025 µA max at 70 V, 25°C - critical for low-power standby and precision bias networks |
| Surge Current (IFSM) | 2 A, 8.3 ms sine - supports short-duration overcurrent events like ESD or inductive kickback |
| Operating Temp Range | -65°C to +175°C - enables deployment in engine bays, avionics bays, and space-grade systems |
Pinout & Package
Package: Hermetically sealed glass DO-213AA per MIL-PRF-19500/118, with cathode indicated by band; dimensions: 3.30–3.70 mm length, 1.60–1.70 mm diameter, 0.41–0.55 mm lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side in rectifier/clamp configuration; must be routed with low-inductance path for fast switching |
| Cathode | Forward current exit / reverse-blocking terminal | Banded end; ties to higher-potential node; reverse voltage applied between cathode and anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/118 Qualified | Meets screening, testing, and traceability requirements for Class J, JANTX, and JANTXV military applications |
| Hermetic Glass Package | Prevents moisture ingress and internal corrosion over 20+ year field life in harsh environments |
| Double Plug Construction | Improves mechanical bond strength and thermal cycling endurance vs. single-weld designs |
| Metallurgical Bonding | Eliminates wire bonds, reducing failure modes in vibration-prone and high-G applications |
Applications
| Aerospace Power Conditioning | Military Radar Bias Networks |
|---|---|
Use Scenario: Clamping transient spikes on +28 V DC distribution buses in satellite power management units. IC Role / Device Role / Timing Role: Fast-switching protection diode placed across bus rails to shunt inductive kickback from relay coils and motor drivers. Use Value: Withstands 2 A surge and operates reliably at +125°C ambient, preventing latch-up in downstream regulators. | Use Scenario: Providing stable reverse-biased isolation in high-frequency T/R module bias control lines. IC Role / Device Role / Timing Role: Blocking DC bias leakage while maintaining RF signal path integrity via low capacitance and minimal IR drift. Use Value: 0.025 µA max IR at 70 V ensures <1 nW leakage power, preserving low-noise amplifier bias stability. |
| Avionics Engine Control Units | Tactical Radio Transmitter Protection |
Use Scenario: Snubbing flyback voltage from solenoid drivers in FADEC systems exposed to wide thermal excursions. IC Role / Device Role / Timing Role: Freewheeling diode across inductive loads, conducting during turn-off to limit voltage overshoot. Use Value: Operates continuously from -55°C to +175°C with no parameter derating, eliminating cold-start failures. | Use Scenario: Protecting final-stage PA transistors from reflected RF energy during antenna mismatch events. IC Role / Device Role / Timing Role: Reverse-biased clamp limiting peak reverse voltage seen by GaAs FET drains during SWR faults. Use Value: 70 V VRWM and 2 A IFSM provide margin against 50 V nominal rail transients exceeding 100 V peak. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N5193UR/TR | Lower VRWM (50 V), identical DO-213AA package and thermal specs | Restricted to ≤50 V systems; unsuitable for 70 V bus clamping | Select only if system reverse voltage remains ≤45 V with safety margin |
| JANTXV1N5194UR | Same electrical specs but screened to higher JANTXV level with extended burn-in and radiation testing | Required for spaceflight and nuclear-hardened platforms where total ionizing dose tolerance is mandated | Choose when compliance with MIL-PRF-19500/118 Appendix A (JANTXV) is contractually required |
Compared with JAN1N5194UR/TR, JAN1N5193UR/TR offers cost savings in lower-voltage systems but lacks 70 V margin, while JANTXV1N5194UR adds radiation hardness and extended screening at higher procurement cost and longer lead time.
Availability
JAN1N5194UR/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, military radar bias networks, and avionics engine control units requiring stable component supply across extended temperature ranges and long lifecycle commitments.
Supply support for JAN1N5194UR/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 defense, aerospace, and industrial markets.
The JAN1N5194UR/TR belongs to Microsemi's MIL-qualified discrete diode product line, engineered specifically for mission-critical switching, clamping, and protection functions in environments demanding full military specification compliance and hermetic reliability.
FAQ
What is the maximum reverse voltage rating for JAN1N5194UR/TR?
The JAN1N5194UR/TR has a DC reverse voltage (VRWM) rating of 70 V, verified per MIL-PRF-19500/118 test conditions. This value represents the highest continuous reverse-bias voltage the device can withstand without exceeding specified leakage current limits. Exceeding 70 V risks irreversible breakdown. The JAN1N5194UR/TR must be operated within this limit in all design configurations including transient conditions unless protected by additional circuitry.
Does JAN1N5194UR/TR have a defined forward voltage drop?
Yes, the JAN1N5194UR/TR specifies a forward voltage (VF) of 1.0 V maximum at 100 mA forward current and 25°C ambient temperature. At -55°C, VF rises to 1.2 V max, and at +150°C, it drops to 0.8 V min. These values are measured under pulsed conditions to avoid self-heating effects. The JAN1N5194UR/TR's VF directly impacts conduction losses in power paths and must be included in thermal modeling.
Is JAN1N5194UR/TR suitable for high-temperature operation?
Yes, the JAN1N5194UR/TR is rated for continuous operation from -65°C to +175°C, with full electrical specifications guaranteed across -55°C to +150°C ambient. Its hermetic DO-213AA package and metallurgical bonding enable stable performance in engine-mounted ECUs and avionics bays. Derating is not required below 175°C junction temperature when thermal impedance (≤70°C/W) and layout allow adequate heat dissipation. The JAN1N5194UR/TR meets MIL-PRF-19500/118 thermal cycling requirements.
What packaging standard does JAN1N5194UR/TR follow?
JAN1N5194UR/TR uses a hermetically sealed glass DO-213AA package conforming to MIL-PRF-19500/118 outline dimensions and material specifications. It features copper-clad steel leads with tin/lead finish, 3.30–3.70 mm body length, and 1.60–1.70 mm diameter. The cathode is marked by a visible band. This package provides immunity to humidity, salt fog, and outgassing - essential for JAN1N5194UR/TR deployment in sealed military enclosures and vacuum environments.
How does JAN1N5194UR/TR differ from commercial-grade 1N5194 diodes?
The JAN1N5194UR/TR differs from commercial 1N5194 variants through mandatory MIL-PRF-19500/118 qualification, including lot traceability, extended temperature testing, hermeticity validation, and screening for defects. It uses metallurgical bonding instead of wire bonding and double-plug construction for superior mechanical robustness. Commercial versions lack these controls and are not rated beyond +125°C or -65°C. The JAN1N5194UR/TR is the only version approved for use in JANTX-level systems.
JAN1N5194UR/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):
- 70 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 25 nA @ 70 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/118
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
- Operating Temperature - Junction:
- -55°C ~ 200°C
JAN1N5194UR/TR FAQ
1.How can I place an order for JAN1N5194UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N5194UR/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 JAN1N5194UR/TR reliable?
The price and inventory of JAN1N5194UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N5194UR/TR is usually 5 days.
3.What payment methods are accepted for JAN1N5194UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N5194UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N5194UR/TR?
JAN1N5194UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N5194UR/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 JAN1N5194UR/TR?
For technical support, including JAN1N5194UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N5194UR/TR requirements.
6.How does Aetrix verify that JAN1N5194UR/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N5194UR/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 JAN1N5194UR/TR meets industry standards.
7.What is the process for return or replacement of JAN1N5194UR/TR?
All JAN1N5194UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N5194UR/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 JAN1N5194UR/TR part is unused and in its original packaging.
Return procedure for JAN1N5194UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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