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Semtech Corporation JANTX1N5619
- Part No.:
- JANTX1N5619
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JANTX1N5619.pdf
- Description:
- DIODE GEN PURP 600V 2A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,608
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Product details
Overview
JANTX1N5619 from Microsemi (now Microchip) is a military-grade, hermetically sealed, silicon transient voltage suppression diode designed for high-reliability aerospace and defense systems. It provides unidirectional clamping at 22 V working voltage, delivers 40 A peak pulse current (8/20 µs), and maintains stable clamping voltage (27.5–28 V) across temperature (−55 °C to +125 °C) and surge current range - critical for protecting MIL-STD-461E/RS-103 compliant power bus interfaces.
For engineers reviewing the JANTX1N5619 datasheet, pinout, applications, or equivalent options, key selection considerations include its hermetic TO-204AA (DO-4) metal can package, ±30 kV IEC 61000-4-2 ESD rating, 1120 W peak pulse power capability, low dynamic resistance (20 mΩ), and qualification per MIL-PRF-19500/505.
Technical Context
The JANTX1N5619 operates as a unidirectional TVS diode with avalanche breakdown mechanism, optimized for fast-rising transients in avionics power distribution networks. Its electrical behavior is defined by a precise reverse stand-off voltage (22 V), tight breakdown voltage tolerance (25–27.9 V at 1 mA), and sub-0.5 V forward voltage - enabling reliable crowbar-like clamping without forward conduction during normal operation.
Unlike standard commercial TVS devices, JANTX1N5619 is fully screened to JANTX level per MIL-PRF-19500, including burn-in, temperature cycling, and hermeticity testing. Its thermal design supports continuous operation from −55 °C to +125 °C junction temperature, with junction-to-case thermal resistance of 10 °C/W - essential for sustained surge handling in sealed chassis environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 22 V - defines maximum continuous DC or RMS operating voltage before clamping initiates; matches 24 V nominal aircraft bus systems. |
| Breakdown Voltage (VBR) | 25–27.9 V at 1 mA - ensures reliable avalanche turn-on margin above VRWM while avoiding false triggering during load dump transients. |
| Clamping Voltage (VC) | 27.5–28 V at 40 A (8/20 µs) - limits protected circuit voltage to safe levels during lightning-induced surges per DO-160 Section 22 Level 3. |
| Peak Pulse Power (PPK) | 1120 W - enables single-device compliance with MIL-STD-461E RS-103 conducted susceptibility requirements up to 100 kHz. |
| Dynamic Resistance (RDYN) | 20 mΩ - minimizes voltage overshoot during fast-rising transients (<1 ns rise time), critical for protecting sensitive FET gate drivers. |
| Junction Capacitance (CJ) | 175 pF at 22 V - low enough to avoid signal integrity degradation on 28 V DC power rails, but not suitable for high-speed data lines. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds MIL-STD-883 Method 3015.8 for electrostatic discharge immunity in ground-handling equipment. |
Pinout & Package
Package: Hermetic TO-204AA (DO-4) metal can, axial leaded, with cathode band marking. Dimensions: 5.59 mm diameter × 9.53 mm length; weight ≤ 1.2 g; qualified per MIL-STD-750 Method 2074 for hermeticity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input return path | Connected to system ground or chassis; must be low-inductance path to handle 40 A surge return current without voltage bounce. |
| Cathode (Lead 2) | Protected line interface | Connected to 28 V bus or avionics subsystem input; clamps transients to anode when voltage exceeds 22 V. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic metal-can construction | Prevents moisture ingress and corrosion in high-humidity, salt-fog, or vacuum environments - required for space-qualified and naval aviation applications. |
| MIL-PRF-19500/505 screening | Includes 168-hour burn-in, 500-cycle temperature cycling (−65 °C to +150 °C), and fine-leak helium testing - ensures zero latent defects in mission-critical platforms. |
| Stable clamping over temperature | Clamping voltage variation <0.5 V from −55 °C to +125 °C - eliminates derating calculations for airborne electronics operating at altitude or under engine bay heat. |
| Low dynamic resistance | 20 mΩ enables <100 ns response to 1 kV/µs transients - protects downstream DC-DC converters and microcontrollers against latch-up. |
| High surge current endurance | Rated for ≥1000 surges at 40 A (8/20 µs) without parameter shift - supports long-service-life requirements in radar power supplies and flight control actuators. |
Applications
| Aerospace Power Bus Protection | Avionics Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 28 V DC power inputs of inertial measurement units (IMUs) and GPS receivers mounted on aircraft wings subject to lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed directly at connector entry point to clamp transients before they reach LDO regulators and ADC front-ends. Use Value: Maintains 27.5 V clamping at full 40 A surge even at −55 °C ambient, preventing brownout resets and sensor data corruption during flight. |
Use Scenario: Shielding analog output lines (0–5 V) of pressure transducers in engine control units exposed to ESD during maintenance and electromagnetic interference from ignition systems. IC Role / Device Role / Timing Role: Standoff protection device on supply rail feeding op-amp signal conditioning circuits - suppresses common-mode surges coupled onto sensor harnesses. Use Value: 175 pF capacitance avoids phase shift in 10 kHz bandwidth sensor signals, while ±30 kV ESD rating prevents field failures during ground crew handling. |
| Military Vehicle Power Distribution | Tactical Radio DC Input Protection |
Use Scenario: Securing 24 V battery-fed power inputs of vehicle-mounted electronic warfare modules subjected to load dump and alternator ripple per MIL-STD-1275B. IC Role / Device Role / Timing Role: Primary transient suppressor upstream of DC-DC converters and FPGA power sequencing ICs in armored vehicle computing systems. Use Value: 1120 W peak power rating handles 100 ms load dump events without degradation, ensuring uninterrupted operation during battlefield mobility. |
Use Scenario: Hardening 28 V DC input of handheld SINCGARS radios used in humid jungle or desert environments where condensation and sand ingress threaten reliability. IC Role / Device Role / Timing Role: Hermetically sealed transient suppressor soldered directly to PCB near power connector, providing first-line defense against ESD and conducted RF. Use Value: TO-204AA metal can withstand 500+ thermal cycles without seal failure - critical for radios undergoing repeated field deployment and depot rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip JANTXV1N5619 | Same die, enhanced screening (JANTXV per MIL-PRF-19500/505 Class V); tighter VBR tolerance (25.5–27.5 V); lower IR (≤100 nA). | Required for Class V programs (e.g., missile guidance, satellite bus); supports tighter voltage margin designs. | Select JANTXV1N5619 when full Class V screening and guaranteed low leakage are mandated by system safety analysis. |
| Vishay 1N5619US | Surface-mount SMC package; same electrical specs but non-hermetic; RoHS-compliant; no MIL-spec screening. | Suitable for commercial avionics upgrades or ground support equipment where cost and board space outweigh hermeticity needs. | Choose 1N5619US only for non-mission-critical applications with controlled environmental conditions and no requirement for MIL-STD-883 testing. |
Compared with JANTX1N5619, JANTXV1N5619 offers higher reliability assurance for life-safety systems, while 1N5619US trades hermeticity and screening for lower cost and smaller footprint - making JANTX1N5619 the optimal balance of ruggedness, availability, and qualification for Tier-1 defense integrators.
Availability
JANTX1N5619 is available at Aetrix Electronics and suitable for aerospace power bus protection, avionics sensor interface hardening, and military vehicle power distribution requiring stable component supply across extended production lifecycles and obsolescence-sensitive programs.
Supply support for JANTX1N5619 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 (acquired by Microchip Technology in 2018) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs for aerospace, defense, and industrial markets.
JANTX1N5619 belongs to Microchip's legacy MIL-PRF-19500 TVS diode product line, engineered specifically for survivability in extreme electromagnetic and thermal environments encountered in flight control, radar, and secure communications systems.
FAQ
What is the primary function of JANTX1N5619 in a circuit?
JANTX1N5619 functions as a unidirectional transient voltage suppressor that clamps voltage spikes on 22–28 V DC power rails to protect downstream components. When transient voltage exceeds 22 V, it avalanches into low-resistance conduction, diverting surge current to ground while holding clamped voltage at 27.5–28 V. This behavior is verified per MIL-PRF-19500/505 and DO-160 Section 22 test profiles.
Is JANTX1N5619 suitable for bidirectional signal line protection?
No, JANTX1N5619 is strictly unidirectional and intended for DC power rail protection only. Its cathode-anode configuration does not support reverse-voltage clamping, making it unsuitable for AC-coupled or differential data lines like RS-485 or CAN. For bidirectional protection, Microchip's JANTX1N6105 or similar dual-diode arrays would be required - JANTX1N5619 must be used with correct polarity orientation on positive-supply rails.
How does JANTX1N5619 differ from commercial-grade 1N5619 variants?
JANTX1N5619 differs from commercial 1N5619 parts through full MIL-PRF-19500/505 screening: hermetic TO-204AA metal packaging, 168-hour burn-in, temperature cycling, and fine-leak testing. Commercial versions lack hermetic sealing, have wider VBR tolerance, and omit radiation hardness or long-term reliability validation - JANTX1N5619 is the only variant qualified for flight-critical hardware.
What is the maximum operating temperature range for JANTX1N5619?
JANTX1N5619 is rated for continuous operation from −55 °C to +125 °C junction temperature, with storage temperature extending to +150 °C. Its clamping voltage remains stable across this full range (<0.5 V variation), and thermal resistance (θJC = 10 °C/W) allows direct mounting on aluminum chassis for passive cooling - validated in Microchip's MIL-STD-750 thermal characterization reports.
Can JANTX1N5619 be used in parallel to increase surge current handling?
No - JANTX1N5619 should never be paralleled due to mismatch in avalanche voltage thresholds, which causes uneven current sharing and premature failure of the lower-VBR unit. System-level surge handling must be increased via external series impedance, staged protection (e.g., gas discharge tube + JANTX1N5619), or selecting a higher-rated part like JANTX1N5621. Parallel use voids MIL-PRF-19500 qualification.
JANTX1N5619 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 600 V
- Capacitance @ Vr, F:
- 27pF @ 5V, 1MHz
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/429
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -65°C ~ 175°C
JANTX1N5619 FAQ
1.How can I place an order for JANTX1N5619 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5619 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 JANTX1N5619 reliable?
The price and inventory of JANTX1N5619 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5619 is usually 5 days.
3.What payment methods are accepted for JANTX1N5619?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5619 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5619?
JANTX1N5619 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5619 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 JANTX1N5619?
For technical support, including JANTX1N5619 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5619 requirements.
6.How does Aetrix verify that JANTX1N5619 is sourced from the original manufacturer or authorized distributors?
All JANTX1N5619 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 JANTX1N5619 meets industry standards.
7.What is the process for return or replacement of JANTX1N5619?
All JANTX1N5619 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5619, 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 JANTX1N5619 part is unused and in its original packaging.
Return procedure for JANTX1N5619:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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