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Microchip Technology JANHCA1N5819
- Part No.:
- JANHCA1N5819
- Manufacturer:
- Microchip Technology
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
JANHCA1N5819.pdf
- Description:
- DIODE SCHOTTKY 45V 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:2,541
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Product details
Overview
JANHCA1N5819 from Microsemi is a 1 A, 45 V Schottky barrier rectifier die optimized for high-efficiency DC/DC conversion in military-grade power supplies, with 0.49 V forward voltage at 1.0 A, 5.0 mA reverse leakage at 100°C, and qualified per MIL-PRF-19500/586 for harsh-environment aerospace and defense applications.
For engineers reviewing the JANHCA1N5819 datasheet, JANHCA1N5819 pinout, JANHCA1N5819 application, or JANHCA1N5819 equivalent, key selection criteria include its 45 V PIV rating, low 0.49 V VF at full rated current, compatibility with wire bonding and die attach (excluding solder reflow), and operation across –55°C to +110°C ambient.
Technical Context
This Schottky rectifier die uses a planar silicon structure with aluminum anode and gold cathode metallization, enabling low forward conduction loss and fast switching recovery without minority-carrier storage delay. Its 37 mil square chip geometry supports high-current density while maintaining thermal stability under pulsed load conditions.
The device is specified for average forward current of 1.0 A at lead temperature TL = +55°C, with reverse leakage tightly controlled to 0.050 mA at 25°C and 5.0 mA at 100°C - critical for low-power-loss standby and high-temperature operation in sealed avionics enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage | 45 V - maximum blocking voltage before breakdown; defines safe operating range in 28 V and 40 V DC input stages. |
| Forward Voltage @ 1.0 A | 0.49 V - directly reduces conduction loss by ~50% vs. standard PN rectifiers, improving efficiency in high-frequency SMPS. |
| Reverse Leakage @ 100°C | 5.0 mA - limits standby power dissipation in high-temp environments such as engine bay electronics. |
| Average Forward Current | 1.0 A @ TL +55°C - thermal limit defined at lead temperature, not case or junction; requires proper heatsinking design. |
| Operating Temperature Range | –55°C to +110°C - validated for extended life in military airborne and ground vehicle systems per MIL-PRF-19500. |
| Die Size | 37 mil square (0.89 × 0.89 mm) - compact footprint enables high-density hybrid module integration. |
Pinout & Package
Package: Unpackaged silicon die (37 mil square), Al-metallized anode on top surface, Au-metallized cathode on back surface. Not housed in molded plastic or TO-style package; intended for hybrid assembly or custom substrate mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Top Surface) | Forward current entry point | Aluminum metallization; must be wire-bonded or conductively attached - no solder reflow allowed. |
| Cathode (Back Surface) | Forward current exit / reverse blocking terminal | Gold metallization; provides low-resistance thermal and electrical path to substrate or heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/586 qualification | Validated reliability for Class H (–55°C to +125°C) screening and lot acceptance testing in defense programs. |
| No solder reflow compatibility | Enables use in high-reliability hybrid circuits where Pb-free solder thermal cycling would degrade Schottky junction integrity. |
| Low 0.34 V VF @ 0.1 A | Minimizes light-load losses in battery-powered subsystems, extending operational time in portable mission equipment. |
| Gold back metallization | Ensures robust adhesion and low contact resistance when mounted to copper or Kovar substrates in hermetic modules. |
Applications
| Avionics Power Conversion | Tactical Radio DC/DC Stages |
|---|---|
Use Scenario: Input rectification in 28 V aircraft bus-fed DC/DC converters powering flight control sensors. IC Role / Device Role / Timing Role: Schottky rectifier die providing unidirectional current flow with minimal forward drop and zero reverse recovery loss. Use Value: Enables >92% converter efficiency at 1 MHz switching frequency while meeting DO-160E environmental stress requirements. | Use Scenario: Output rectification in compact, conduction-cooled 5 W DC/DC modules for handheld tactical radios. IC Role / Device Role / Timing Role: High-current-density die-level rectifier integrated into multilayer ceramic substrate with embedded magnetics. Use Value: Reduces thermal footprint by 40% vs. packaged 1N5819, allowing full derating at +85°C ambient without forced air. |
| Missile Seeker Power Supplies | Ground Vehicle ECU Protection |
Use Scenario: Input stage rectification in radiation-tolerant, shock-mounted DC/DC converters inside infrared seeker assemblies. IC Role / Device Role / Timing Role: Bare die rectifier bonded directly to AlN substrate for ultra-low thermal resistance and mechanical survivability. Use Value: Sustains 1 A output under 100 g shock pulses and –55°C cold start without parametric shift. | Use Scenario: Reverse polarity protection and load dump clamping in 24 V engine control unit power inputs. IC Role / Device Role / Timing Role: Anode-connected Schottky die used in series with main power rail to block reverse battery connection. Use Value: Limits forward drop to 0.49 V at full load, reducing heat generation compared to MOSFET-based solutions in space-constrained ECUs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier die applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5819 | Same die, but qualified to higher MIL-PRF-19500/586 Class K (screened to 100% burn-in and parametric test). | Required for spaceflight and nuclear-hardened systems where zero latent defects are mandated. | Select JANTXV1N5819 only if full Class K screening is contractually required; JANHCA1N5819 satisfies standard Class H programs. |
| 1N5819TR | Commercial-grade plastic-packaged version; not qualified to MIL-PRF-19500; VF and IR specs identical at 25°C but not guaranteed over full temp range. | Suitable for non-military industrial prototypes or cost-sensitive ground-test hardware. | Use 1N5819TR only for bench validation; JANHCA1N5819 is mandatory for flight hardware due to process traceability and screening documentation. |
Compared with JANTXV1N5819 and 1N5819TR, the JANHCA1N5819 delivers verified Class H reliability at lower cost than Class K, while offering superior thermal performance and qualification rigor versus commercial packaging - making it the optimal choice for production avionics and defense electronics requiring bare-die integration.
Availability
JANHCA1N5819 is available at Aetrix Electronics and suitable for avionics power conversion, tactical radio DC/DC stages, and missile seeker power supplies requiring stable component supply with full MIL-PRF-19500 compliance and traceable lot history.
Supply support for JANHCA1N5819 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, RF solutions, and radiation-hardened components for defense, aerospace, and industrial markets.
The JANHCA1N5819 belongs to Microsemi's military-qualified Schottky rectifier die family, designed specifically for hybrid microcircuit integration in mission-critical power systems where long-term reliability and extreme environmental tolerance are non-negotiable.
FAQ
What is the maximum average forward current rating for JANHCA1N5819?
The JANHCA1N5819 is rated for 1.0 A average forward current at lead temperature TL = +55°C. This rating assumes proper thermal management via conductive die attach to a substrate capable of maintaining the lead temperature at or below +55°C. Exceeding this condition risks thermal runaway due to the positive temperature coefficient of forward voltage in Schottky diodes.
Is JANHCA1N5819 compatible with solder reflow assembly?
No, JANHCA1N5819 is explicitly incompatible with solder reflow per its datasheet. The device uses aluminum anode and gold cathode metallization that degrades under Pb-free reflow thermal profiles. It must be assembled using wire bonding, conductive epoxy, or thermosonic bonding - processes validated under MIL-PRF-19500/586.
What does the "JANHCA" prefix indicate in JANHCA1N5819?
The "JANHCA" prefix denotes Joint Army-Navy specification level H (–55°C to +125°C operating range), Class A (standard reliability screening), and qualification per MIL-PRF-19500/586. It identifies JANHCA1N5819 as a military-grade Schottky rectifier die with full lot traceability, environmental testing, and failure analysis reporting.
How does the reverse leakage current of JANHCA1N5819 behave at elevated temperatures?
JANHCA1N5819 exhibits 0.050 mA reverse leakage at 25°C and 5.0 mA at 100°C - a 100× increase consistent with Schottky junction physics. This behavior is fully characterized and guaranteed per datasheet, enabling accurate standby power budgeting in high-temperature avionics bays where ambient may exceed 85°C.
Can JANHCA1N5819 be used as a direct replacement for commercial 1N5819 in existing designs?
No - JANHCA1N5819 is an unpackaged die, not a through-hole or surface-mount component. It cannot replace a packaged 1N5819 without redesigning the assembly process, substrate layout, and thermal interface. Its value lies in hybrid integration, not drop-in substitution.
JANHCA1N5819 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 490 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/586
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -55°C ~ 110°C
JANHCA1N5819 FAQ
1.How can I place an order for JANHCA1N5819 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANHCA1N5819 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 JANHCA1N5819 reliable?
The price and inventory of JANHCA1N5819 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANHCA1N5819 is usually 5 days.
3.What payment methods are accepted for JANHCA1N5819?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANHCA1N5819 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANHCA1N5819?
JANHCA1N5819 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANHCA1N5819 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 JANHCA1N5819?
For technical support, including JANHCA1N5819 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANHCA1N5819 requirements.
6.How does Aetrix verify that JANHCA1N5819 is sourced from the original manufacturer or authorized distributors?
All JANHCA1N5819 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 JANHCA1N5819 meets industry standards.
7.What is the process for return or replacement of JANHCA1N5819?
All JANHCA1N5819 units undergo pre-shipment inspection (PSI). If there is an issue with JANHCA1N5819, 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 JANHCA1N5819 part is unused and in its original packaging.
Return procedure for JANHCA1N5819:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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