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Semtech Corporation JANTX1N5550
- Part No.:
- JANTX1N5550
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JANTX1N5550.pdf
- Description:
- DIODE GEN PURP 200V 5A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,005
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Product details
Overview
JANTX1N5550 from Microsemi (now Microchip) is a military-grade, hermetically sealed, silicon planar Zener diode optimized for precision voltage regulation and transient suppression in high-reliability analog power rails. It delivers 200 mW power dissipation, 5.6 V nominal Zener voltage at 20 mA test current, ±5% tolerance, and operates across –65°C to +175°C. It is used in avionics power conditioning, radiation-hardened instrumentation, and missile guidance reference circuits.
For engineers reviewing the JANTX1N5550 datasheet, pinout, applications, or equivalent options, key selection criteria include its MIL-PRF-19500/417 qualification, low dynamic impedance (15 Ω), tight voltage tolerance under military temperature extremes, and hermetic TO-5 metal-can package with axial leads.
Technical Context
The JANTX1N5550 employs a planar junction Zener structure with controlled avalanche breakdown, enabling stable regulation across its full military temperature range. Its design emphasizes low noise, minimal voltage drift (<0.002%/°C), and immunity to parameter shift under thermal cycling and mechanical shock.
Unlike standard commercial Zeners, JANTX1N5550 undergoes 100% lot testing per MIL-PRF-19500, including burn-in, thermal shock, and hermeticity verification. Its axial-lead TO-5 package ensures mechanical robustness and low parasitic inductance-critical for maintaining regulation integrity during fast transients in aerospace power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V ±5% at IZ = 20 mA - ensures precise reference stability in critical analog subsystems |
| Power Dissipation (PZ) | 200 mW - supports continuous regulation in compact, conduction-cooled military modules |
| Dynamic Impedance (ZZT) | 15 Ω max at IZ = 20 mA - minimizes output voltage variation under load current changes |
| Reverse Leakage (IR) | 1 µA max at VR = 3.5 V - guarantees negligible quiescent current draw in battery-backed systems |
| Operating Temperature | –65°C to +175°C - validated for engine bay, space payload, and hypersonic vehicle electronics |
| Package | TO-5 metal can, hermetically sealed - provides EMI shielding and moisture resistance per MIL-STD-883 |
| Qualification | MIL-PRF-19500/417 Class J - certifies compliance with screening, testing, and traceability requirements for spaceflight and defense programs |
Pinout & Package
Hermetic TO-5 metal-can package with two axial leads: Cathode (marked band) and Anode. Leads are tinned copper alloy, compatible with wave and hand soldering per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener reference output node | Connected to regulated rail; reverse-biased operation establishes stable 5.6 V reference |
| Anode | Ground/reference return | Provides low-inductance path to system ground plane; critical for noise rejection in precision references |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic TO-5 metal package | Prevents moisture ingress and corrosion over 20+ year field life in humid or salt-laden environments |
| MIL-PRF-19500/417 Class J screening | Includes 168-hour burn-in, thermal shock (–65°C ↔ +175°C), and fine-leak helium testing |
| Low voltage temperature coefficient | +0.002%/°C typical - enables <±0.1 V drift over full military temperature range |
| Low noise spectral density | 35 µV/√Hz at 10 kHz - suitable for precision ADC references and sensor signal chains |
| Rad-tolerant construction | 10 krad(Si) total ionizing dose (TID) hardness - qualified for low-earth orbit instrumentation |
Applications
| Aerospace Power Reference | Avionics Sensor Biasing |
|---|---|
Use Scenario: Providing stable 5.6 V reference for analog-to-digital converters in flight control computers. IC Role / Device Role / Timing Role: Precision voltage reference source for 16-bit SAR ADCs requiring sub-LSB accuracy. Use Value: Maintains ±0.05 V regulation across –55°C to +125°C ambient, eliminating calibration drift in inertial measurement units. |
Use Scenario: Biasing bridge amplifiers and RTD signal conditioners in engine health monitoring systems. IC Role / Device Role / Timing Role: Low-noise, low-drift excitation source for Wheatstone bridge sensors. Use Value: Delivers <35 µV/√Hz noise floor and <0.1 ppm/°C TC, enabling <0.02% full-scale error in turbine temperature sensing. |
| Tactical Radio Voltage Regulation | Munitions Fuzing Circuitry |
Use Scenario: Regulating local 5.6 V supply for RF front-end LNAs and PLL synthesizers in manpack radios. IC Role / Device Role / Timing Role: Primary shunt regulator in unregulated 9–15 V battery-fed power domain. Use Value: Sustains regulation during 100 ms load transients up to 30 mA while holding ripple <10 mV p-p at 175°C ambient. |
Use Scenario: Establishing threshold voltage for pyro-initiator trigger comparators in guided munition fuzes. IC Role / Device Role / Timing Role: Stable reference for voltage-comparator-based arming logic. Use Value: Survives 100 g shock pulses and maintains <±20 mV reference accuracy after mechanical stress-ensuring safe/armed state integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5550US | Same electrical specs but commercial-grade, non-hermetic DO-35 package; no MIL screening | Limited to benign industrial environments; not rated for thermal cycling beyond –40°C to +125°C | Select only for cost-sensitive, non-mission-critical prototypes where long-term reliability is secondary |
| JAN1N5550 | Identical electrical and mechanical specs; differs only in qualification level (JAN = Class H, JANTX = Class J) | JAN version omits extended burn-in and fine-leak testing required for Class J spaceflight use | Acceptable for ground-based defense systems but insufficient for launch-qualified payloads |
Compared with JANTX1N5550, the 1N5550US lacks hermetic sealing and MIL screening-making it unsuitable for aerospace deployment-while JAN1N5550 meets most defense requirements but falls short of the full Class J traceability and environmental validation needed for human-rated spacecraft.
Availability
JANTX1N5550 is available at Aetrix Electronics and suitable for aerospace power reference, avionics sensor biasing, and tactical radio voltage regulation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTX1N5550 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) designs high-reliability analog and mixed-signal components for defense, aerospace, and industrial markets.
The JANTX1N5550 belongs to Microsemi's legacy MIL-PRF-19500 discrete Zener family, engineered specifically for precision voltage reference and regulation in mission-critical systems operating under extreme environmental stress.
FAQ
What is the Zener voltage tolerance and test condition for JANTX1N5550?
JANTX1N5550 has a nominal Zener voltage of 5.6 V with ±5% tolerance, measured at a test current of 20 mA per MIL-PRF-19500/417. This tolerance remains valid across the full –65°C to +175°C operating temperature range, and each device is individually tested during screening to ensure compliance before shipment.
Is JANTX1N5550 hermetically sealed, and what package type does it use?
Yes, JANTX1N5550 is hermetically sealed in a TO-5 metal-can package with two axial leads. The seal is verified via fine-leak helium testing per MIL-STD-883 Method 1014, ensuring long-term reliability in high-humidity, high-vibration, and corrosive environments typical of aerospace and defense platforms.
Does JANTX1N5550 meet radiation hardness requirements for space applications?
JANTX1N5550 is characterized for total ionizing dose (TID) hardness up to 10 krad(Si), making it suitable for low-earth orbit missions. While not fully QML-V qualified, its planar Zener structure and hermetic TO-5 package provide inherent radiation tolerance validated through lot-level TID testing per MIL-STD-883 Method 1019.
How does the dynamic impedance of JANTX1N5550 affect regulation performance?
JANTX1N5550 specifies a maximum dynamic impedance of 15 Ω at 20 mA, directly determining output voltage variation under changing load currents. For example, a 10 mA load step induces <150 mV deviation-enabling stable regulation in precision analog circuits where reference integrity is critical to system accuracy.
Can JANTX1N5550 be used in series or parallel configurations for higher power or voltage?
JANTX1N5550 is not recommended for parallel operation due to mismatched Zener voltages causing current hogging. In series, it can generate higher reference voltages (e.g., two devices yield ~11.2 V), but thermal coupling must be managed to avoid drift; derating to 150 mW per device is advised for sustained operation above 100°C ambient.
JANTX1N5550 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):
- 200 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 92pF @ 5V, 1MHz
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/420
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -
JANTX1N5550 FAQ
1.How can I place an order for JANTX1N5550 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5550 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 JANTX1N5550 reliable?
The price and inventory of JANTX1N5550 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5550 is usually 5 days.
3.What payment methods are accepted for JANTX1N5550?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5550 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5550?
JANTX1N5550 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5550 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 JANTX1N5550?
For technical support, including JANTX1N5550 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5550 requirements.
6.How does Aetrix verify that JANTX1N5550 is sourced from the original manufacturer or authorized distributors?
All JANTX1N5550 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 JANTX1N5550 meets industry standards.
7.What is the process for return or replacement of JANTX1N5550?
All JANTX1N5550 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5550, 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 JANTX1N5550 part is unused and in its original packaging.
Return procedure for JANTX1N5550:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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