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Microchip Technology JAN1N1124A
- Part No.:
- JAN1N1124A
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- DO-203AA, DO-4, Stud
- Datasheet:
-
JAN1N1124A.pdf
- Description:
- DIODE GEN PURP 200V DO203AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,647
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Product details
Overview
JAN1N1124A from Microsemi is a high-reliability glass-passivated power rectifier diode rated for 200 V peak repetitive reverse voltage, 3.3 A average forward current at 150°C case temperature, and 25 A surge current (8.3 ms half-sine), used in military-grade DC power supplies and avionics power conditioning circuits.
For engineers reviewing the JAN1N1124A datasheet, JAN1N1124A pinout, JAN1N1124A application, or JAN1N1124A equivalent, key selection criteria include its MIL-PRF-19500/260 qualification, DO-203AA stud-mount package, 2.0°C/W junction-to-case thermal resistance, and low 5 µA reverse leakage at 200 V / 25°C.
Technical Context
The JAN1N1124A is a single-junction, axial-leaded, stud-mounted silicon power rectifier with glass-to-metal hermetic seal and glass-passivated die-designed for high-temperature, high-reliability operation in harsh environments. Its construction enables stable performance across -65°C to +150°C case temperature range and up to +200°C storage.
It operates as a unidirectional current-conducting device with forward voltage drop of 2.2 V at 10 A / 25°C and exhibits only 5 µA reverse current at VR = 200 V / 25°C, rising to 200 µA at 150°C-supporting robust blocking integrity in regulated DC bus applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 200 V - Maximum repetitive reverse voltage the device blocks reliably in circuit |
| IF(AVG) | 3.3 A at TC = 150°C - Continuous forward current capability under worst-case thermal conditions |
| IFSM | 25 A (8.3 ms half-sine) - Surge withstand capacity for line transients and inrush events |
| Rθjc | 2.0°C/W - Thermal resistance enabling efficient heat transfer to heatsink or chassis mount |
| VF | 2.2 V at IF = 10 A, Tj = 25°C - Forward conduction loss impacting efficiency and thermal design |
| IR | 5 µA at VR = 200 V, Tj = 25°C - Low leakage ensures minimal standby power loss and signal integrity |
Pinout & Package
Package: DO-203AA (formerly DO-4), hermetically sealed glass-to-metal stud-mount package with threaded anode terminal (10-32UNF2A) and cathode stud base. Mounting requires torque ≤15 in-lb on nut; unthreaded portion diameter 0.163–0.189 inch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Threaded Stud) | Forward current entry point | Designed for direct mechanical and thermal attachment to heatsink; carries full load current |
| Cathode (Base Stud) | Forward current exit point | Provides low-inductance return path and secondary thermal interface to mounting surface |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/260 Qualified | Meets U.S. military screening, testing, and traceability requirements for Class H reliability |
| Glass-Passivated Die | Protects PN junction from moisture, contamination, and mechanical stress during thermal cycling |
| Glass-to-Metal Seal | Hermetic enclosure prevents internal oxidation and ensures long-term parameter stability |
| DO-203AA Stud Mount | Enables high-current conduction and direct thermal coupling to chassis without PCB routing |
Applications
| Aerospace Power Supplies | Avionics DC-DC Converters |
|---|---|
Use Scenario: Input rectification stage in 28 V DC aircraft power distribution units handling engine-driven generator output. IC Role / Device Role / Timing Role: High-reliability power rectifier converting AC generator output to regulated DC bus. Use Value: 25 A surge rating handles generator fault currents; MIL-spec qualification ensures flight-critical continuity. | Use Scenario: Output stage rectifier in isolated forward converters supplying 5 V/12 V logic rails in mission computers. IC Role / Device Role / Timing Role: Secondary-side power rectifier delivering clean, low-noise DC to sensitive digital subsystems. Use Value: 5 µA reverse leakage at 25°C minimizes standby loss; 2.0°C/W Rθjc supports compact thermal design. |
| Tactical Vehicle Power Systems | Military Radar Transmitter Supplies |
Use Scenario: Battery-charging rectifier in 24 V vehicle electrical systems exposed to wide ambient temperature swings (-40°C to +70°C). IC Role / Device Role / Timing Role: Main AC/DC rectifier interfacing alternator output with battery bank and auxiliary loads. Use Value: -65°C to +150°C operating range accommodates under-hood thermal extremes without derating. | Use Scenario: High-voltage DC supply rectification for magnetron or klystron bias in ground-based radar transmitters. IC Role / Device Role / Timing Role: High-VRRM rectifier in multi-kilovolt modulator supplies requiring stable blocking under pulse loading. Use Value: 200 V VRWM with 200 µA IR at 150°C ensures reliable hold-off during high-duty-cycle RF bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N1124A | Commercial-grade version; not MIL-qualified, same electrical specs and DO-203AA package | Lacks MIL-PRF-19500 screening; unsuitable for flight-critical or defense prime BOMs | Select when cost sensitivity outweighs formal reliability certification requirements |
| JAN1N1126A | Same construction and qualification, but rated for 400 V VRWM and higher thermal resistance (2.5°C/W) | Used where higher reverse voltage margin is required, e.g., 400 V DC bus designs | Choose for upgraded voltage headroom while retaining identical mechanical fit and reliability pedigree |
Compared with 1N1124A and JAN1N1126A, the JAN1N1124A provides optimal balance of 200 V blocking, 3.3 A continuous rating, and MIL-qualified robustness for 28 V aerospace and tactical vehicle power systems-without over-specifying voltage or compromising thermal performance.
Availability
JAN1N1124A is available at Aetrix Electronics and suitable for aerospace power supplies, avionics DC-DC converters, and tactical vehicle power systems requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for JAN1N1124A 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 ICs, discretes, and radiation-hardened components for defense, aerospace, and industrial markets.
The JAN1N1124A belongs to Microsemi's high-reliability power rectifier product line, engineered specifically for mission-critical power conversion where MIL-qualified performance, hermetic sealing, and extreme temperature resilience are mandatory.
FAQ
What is the maximum junction temperature rating for the JAN1N1124A?
The JAN1N1124A does not specify a maximum junction temperature (Tj) directly, but its absolute maximum ratings define a case temperature (TC) limit of -65°C to +150°C. With a thermal resistance Rθjc of 2.0°C/W, the achievable Tj depends on power dissipation and heatsink design. For example, at 3.3 A average current and VF ≈ 2.2 V, power dissipation is ~7.3 W, resulting in ΔT = 14.6°C above TC-keeping Tj safely below 165°C under nominal conditions. The JAN1N1124A is built to sustain this thermal profile in MIL-qualified operation.
Is the JAN1N1124A RoHS compliant?
The JAN1N1124A predates RoHS requirements and is not RoHS compliant per standard EU Directive 2011/65/EU. It contains lead in the solder and metallization system, consistent with MIL-PRF-19500/260 Class H processing. Microsemi documents it as exempt under RoHS Annex III for high-reliability military applications. Customers requiring RoHS compliance should evaluate commercial alternatives like 1N1124A-but note that those lack MIL qualification and hermetic sealing. The JAN1N1124A remains specified for legacy and defense-critical platforms where reliability supersedes RoHS.
How is polarity identified on the JAN1N1124A package?
Polarity is defined mechanically: the threaded stud is the anode, and the flat base (cathode stud) is the cathode. There is no color coding or marking on the JAN1N1124A body-its DO-203AA package relies on physical orientation for identification. When mounted, the anode stud screws into the heatsink or chassis, while the cathode base contacts the return plane. This configuration is confirmed in Microsemi's T4-LDS-0135 datasheet and aligns with MIL-PRF-19500/260 mechanical drawings. Reversed units (anode-to-stud) are marked with an "R" suffix (e.g., JAN1N1124RA), which the JAN1N1124A does not carry.
What is the difference between JAN1N1124A and JAN1N1124RA?
The JAN1N1124RA is the reversed-polarity variant of the JAN1N1124A: its anode is connected to the base stud and cathode to the threaded stud-opposite of the standard JAN1N1124A. Per Microsemi's datasheet note #10, reversed units are marked with "R" after the digit. Both share identical electrical specs (200 V VRWM, 3.3 A IF, 25 A IFSM) and MIL-PRF-19500/260 qualification. The choice depends entirely on circuit layout and mechanical mounting constraints. The JAN1N1124A is the standard configuration; JAN1N1124RA is selected only when cathode-up mounting is required.
Can the JAN1N1124A be used in surface-mount designs?
No-the JAN1N1124A uses a DO-203AA (DO-4) stud-mount package with threaded anode and metal base, designed exclusively for through-chassis or bolt-down mechanical installation. It has no surface-mount footprint, solder pads, or compatible carrier tape/reel packaging. Attempting SMT assembly would damage the hermetic seal and violate MIL-PRF-19500/260 construction requirements. For surface-mount alternatives, engineers must select commercial SMD rectifiers (e.g., SMC-type packages), but those lack the JAN1N1124A's hermeticity, surge rating, and military qualification.
JAN1N1124A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-203AA, DO-4, Stud
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- 2.2 V @ 10 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/260
- Mounting Type:
- Stud Mount
- Supplier Device Package:
- DO-203AA (DO-4)
- Operating Temperature - Junction:
- -65°C ~ 150°C
JAN1N1124A FAQ
1.How can I place an order for JAN1N1124A through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N1124A 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 JAN1N1124A reliable?
The price and inventory of JAN1N1124A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N1124A is usually 5 days.
3.What payment methods are accepted for JAN1N1124A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N1124A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N1124A?
JAN1N1124A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N1124A 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 JAN1N1124A?
For technical support, including JAN1N1124A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N1124A requirements.
6.How does Aetrix verify that JAN1N1124A is sourced from the original manufacturer or authorized distributors?
All JAN1N1124A 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 JAN1N1124A meets industry standards.
7.What is the process for return or replacement of JAN1N1124A?
All JAN1N1124A units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N1124A, 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 JAN1N1124A part is unused and in its original packaging.
Return procedure for JAN1N1124A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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