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Microchip Technology JANTX1N4500
- Part No.:
- JANTX1N4500
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4500.pdf
- Description:
- DIODE GEN PURP 80V DO35
- Quantity:
- Payment:
- Shipping:
Inventory:1,226
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Product details
Overview
JANTX1N4500 from Microsemi is a hermetically sealed, metallurgically bonded switching diode in DO-35 glass package, rated for 75 V reverse voltage, 0.5 A surge current (1 s sine), and operating up to +175°C ambient. It delivers fast 6.0 ns recovery time with low 0.56 V forward voltage at 250 mA, and is qualified to MIL-PRF-19500/403 for high-reliability aerospace power supply clamping.
For engineers reviewing the JANTX1N4500 datasheet, JANTX1N4500 pinout, JANTX1N4500 application, or JANTX1N4500 equivalent, key selection criteria include its 100 nA leakage at 75 V, 4.0 pF junction capacitance, DO-35 mechanical compliance, and qualification for military-grade thermal cycling and hermeticity testing.
Technical Context
This diode employs double-plug construction with copper-clad steel leads and tin/lead finish, enabling stable performance under thermal shock and vibration. Its metallurgical bond ensures low series resistance and repeatable switching behavior across -65°C to +175°C operation.
Designed for transient suppression and signal routing in harsh-environment analog front-ends, the JANTX1N4500 exhibits tightly specified VF drift (derated 2.0 mA/°C above 25°C) and guaranteed VBR minimum of 80 V at 100 μA IR - critical for precision clamp threshold stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 75 V DC - maximum continuous blocking voltage before breakdown at +25°C |
| Forward Voltage (VF) | 0.56 V max at IF = 250 mA - enables low-loss rectification in compact power stages |
| Reverse Leakage (IR) | 100 nA max at VR = 75 V - ensures minimal standby current in high-impedance bias networks |
| Recovery Time (trr) | 6.0 ns max - supports >100 MHz switching in RF detector and pulse shaping circuits |
| Junction Capacitance (Cj) | 4.0 pF max at 0 V - maintains signal integrity in HF coupling and sampling applications |
| Surge Current (IFSM) | 4 A peak (1 µs sine) - withstands ESD and inductive kick events without degradation |
| Operating Temp Range | -65°C to +175°C - validated for engine bay, downhole, and avionics mounting locations |
Pinout & Package
Hermetically sealed DO-35 glass package per MIL-PRF-19500/403, with cathode indicated by axial band; lead material is copper-clad steel, finished with tin/lead plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node in clamp or rectifier path; unmarked end of DO-35 body |
| Cathode | Current exit terminal during forward conduction; reverse-blocking terminal | Marked with axial color band; ties to higher-potential rail in flyback snubbers and polarity protection |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic Glass Seal | Prevents moisture ingress and long-term parameter drift in humid or corrosive atmospheres |
| MIL-PRF-19500/403 Qualification | Validated for screening including thermal shock (-65°C/+175°C, 5 cycles), hermeticity leak test, and life test at rated conditions |
| Double Plug Construction | Minimizes interfacial resistance between semiconductor die and lead frame, improving thermal transfer and surge robustness |
| Metallurgical Bonding | Eliminates wire bonds susceptible to vibration fatigue, ensuring reliability in high-G aerospace environments |
| Cathode Band Polarity Mark | Enables rapid visual verification during manual assembly and automated optical inspection (AOI) |
Applications
| Avionics Power Sequencing | Satellite Solar Array Regulation |
|---|---|
Use Scenario: Isolating auxiliary bus during cold-start sequencing to prevent backfeed into main regulator. IC Role / Device Role / Timing Role: Fast-switching clamp diode preventing reverse current flow during power-up transitions. Use Value: 6.0 ns recovery ensures no shoot-through during <100 ns timing windows; 100 nA leakage avoids loading sensitive reference nodes. | Use Scenario: Bypassing failed solar cell strings in orbital array harnesses under partial shading. IC Role / Device Role / Timing Role: String-level blocking diode handling intermittent 4 A surge currents during eclipse re-entry. Use Value: 4 A 1 µs surge rating sustains repeated fault clearing without parametric shift; DO-35 hermeticity prevents outgassing in vacuum. |
| Downhole Telemetry Front-End | Tactical Radio Transmitter Protection |
Use Scenario: Protecting ADC input stages from induced transients in oil/gas logging tools operating at 175°C. IC Role / Device Role / Timing Role: High-temp transient voltage suppressor clamping EMI spikes on sensor lines. Use Value: Stable 75 V VR and 100 nA IR maintained at full temperature range ensure consistent overvoltage threshold. | Use Scenario: RF output stage isolation to prevent reflected power damage during antenna mismatch events. IC Role / Device Role / Timing Role: Fast-recovery series switch interrupting 100+ MHz carrier bursts within nanoseconds. Use Value: 4.0 pF Cj minimizes insertion loss; 0.56 V VF reduces insertion heating in pulsed PA bias paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4500 | Higher screening level (JANTXV vs JANTX); tighter VF and VBR limits; 100% lot acceptance test per MIL-PRF-19500 | Required for Class H/V spaceflight missions where zero defect tolerance applies | Select JANTXV1N4500 when mission-critical radiation-hardened assurance is mandated |
| 1N4500 (commercial) | No MIL qualification; wider VF and IR tolerances; not subjected to hermeticity or thermal shock screening | Suitable only for non-safety-critical industrial prototypes or ground-test fixtures | Use 1N4500 only for cost-sensitive development boards where MIL spec is not enforced |
Compared with JANTX1N4500, JANTXV1N4500 adds statistical process control and extended environmental screening but shares identical DO-35 footprint and electrical baseline; the commercial 1N4500 omits all military test documentation and may exhibit parametric spread beyond JANTX limits.
Availability
JANTX1N4500 is available at Aetrix Electronics and suitable for avionics power sequencing, satellite solar array regulation, and downhole telemetry front-end designs requiring stable component supply under extended temperature and reliability constraints.
Supply support for JANTX1N4500 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 manufacturer specializing in high-reliability, radiation-tolerant, and defense-qualified components.
The JANTX1N4500 belongs to Microsemi's legacy MIL-PRF-19500/403 qualified discrete diode family, engineered for mission-critical analog signal conditioning and power control in aerospace, defense, and energy exploration systems.
FAQ
What is the maximum reverse voltage rating for JANTX1N4500?
The JANTX1N4500 has a maximum DC reverse voltage rating of 75 V at +25°C ambient, with a guaranteed minimum breakdown voltage of 80 V at 100 μA leakage current. This rating is maintained across its full -65°C to +175°C operating range, though derating applies above +25°C per MIL-PRF-19500/403 requirements.
Is JANTX1N4500 suitable for high-frequency switching applications?
Yes, the JANTX1N4500 supports high-frequency operation with a maximum reverse recovery time of 6.0 ns and junction capacitance of 4.0 pF at 0 V. These parameters enable reliable use in RF detector circuits, pulse shapers, and clock distribution networks up to 150 MHz, provided layout parasitics are minimized.
Does JANTX1N4500 require derating of forward current above 25°C?
Yes, the JANTX1N4500 requires forward current derating at 2.0 mA/°C for ambient temperatures ≥25°C, as specified in Note (1) of its datasheet. At +125°C, the allowable DC forward current drops to approximately 250 mA - a critical constraint for sustained conduction in high-temp enclosures.
How is polarity identified on the JANTX1N4500 package?
The JANTX1N4500 uses an axial cathode band marking on its DO-35 glass body to indicate polarity. The banded end is the cathode; the unmarked end is the anode. This marking complies with MIL-PRF-19500/403 and is verified during visual inspection per screening requirements.
What packaging and lead finish does JANTX1N4500 use?
The JANTX1N4500 is supplied in a hermetically sealed DO-35 glass package with copper-clad steel leads finished in tin/lead (Sn/Pb). Lead diameter is controlled between 0.018–0.022 inches within 0.050–1.000 inches from the body, per MIL-PRF-19500/403 dimensional specifications.
JANTX1N4500 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 300 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 6 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 75 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/403
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
- Operating Temperature - Junction:
- -65°C ~ 175°C
JANTX1N4500 FAQ
1.How can I place an order for JANTX1N4500 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4500 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 JANTX1N4500 reliable?
The price and inventory of JANTX1N4500 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4500 is usually 5 days.
3.What payment methods are accepted for JANTX1N4500?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4500 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4500?
JANTX1N4500 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4500 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 JANTX1N4500?
For technical support, including JANTX1N4500 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4500 requirements.
6.How does Aetrix verify that JANTX1N4500 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4500 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 JANTX1N4500 meets industry standards.
7.What is the process for return or replacement of JANTX1N4500?
All JANTX1N4500 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4500, 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 JANTX1N4500 part is unused and in its original packaging.
Return procedure for JANTX1N4500:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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