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Semtech Corporation JANTX1N5552
- Part No.:
- JANTX1N5552
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JANTX1N5552.pdf
- Description:
- DIODE GEN PURP 600V 5A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,117
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Product details
Overview
JANTX1N5552 from Microsemi (now Microchip) is a hermetically sealed, military-grade silicon Zener diode rated for 22V nominal breakdown voltage, ±5% tolerance, and 500mW power dissipation in DO-35 package. It provides precise voltage regulation and transient overvoltage clamping in high-reliability analog power rails, reference circuits, and radiation-tolerant instrumentation.
For engineers reviewing the JANTX1N5552 datasheet, pinout, applications, or equivalent options, this part serves as a stable, low-noise, temperature-compensated voltage reference in aerospace avionics, defense electronics, and space-qualified power management where long-term parametric stability and MIL-PRF-19500/437 compliance are mandatory.
Technical Context
JANTX1N5552 operates as a two-terminal, avalanche-mode Zener diode with a nominal VZ of 22V at IZ = 10mA, exhibiting tight ±5% initial tolerance and low dynamic impedance (ZZT ≤ 40Ω). Its hermetic glass-metal DO-35 package ensures immunity to humidity-induced parameter drift and supports operation across –65°C to +175°C junction temperature range.
The device meets MIL-PRF-19500/437 Class S requirements, including 100% screening for burn-in, thermal shock, and steady-state life test. Its Zener voltage exhibits minimal temperature coefficient (TC ≈ +0.05%/°C above 10V), enabling predictable regulation under wide ambient variations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 22V ±5% at IZ = 10mA - ensures accurate, repeatable voltage reference within tight production lot limits |
| Power Dissipation (PZ) | 500mW at TA = 25°C - defines maximum continuous DC or low-duty-cycle pulse power handling before thermal runaway |
| Zener Impedance (ZZT) | ≤40Ω at IZ = 10mA - guarantees low AC output impedance for stable regulation under varying load current |
| Reverse Leakage (IR) | ≤1μA at VR = 17.6V - confirms sharp knee and minimal quiescent current in pre-breakdown region |
| Operating Temperature | –65°C to +175°C - enables deployment in extreme environments without derating or thermal protection circuitry |
| Package | DO-35 (hermetic glass-metal) - provides moisture-free, long-lifetime reliability required for 20+ year mission-critical systems |
Pinout & Package
DO-35 hermetic axial-leaded package: cathode indicated by band; anode and cathode terminals only - no internal connections beyond the two leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal during forward bias; reference ground node in Zener regulator configuration | Must be connected to system ground or lowest potential point to establish stable reference baseline |
| Cathode | Current source terminal during reverse breakdown; regulated output node | Provides stable 22V output relative to anode; requires series current-limiting resistor for proper biasing |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/437 Class S screening | 100% tested for burn-in, thermal shock, and life test - eliminates infant mortality and ensures field reliability in deployed systems |
| Hermetic DO-35 package | Zero moisture ingress over lifetime - prevents parameter shift and catastrophic failure in humid or vacuum environments |
| ±5% VZ tolerance at 10mA | Reduces need for post-assembly trimming or binning - lowers manufacturing cost in precision analog assemblies |
| Low ZZT (≤40Ω) | Minimizes output voltage variation under ±2mA load change - critical for stable feedback references in LDOs and SMPS controllers |
| –65°C to +175°C operation | Supports direct mounting on high-temp PCBs or near power devices without thermal isolation - simplifies thermal design |
Applications
| Avionics Power Monitoring | Satellite DC-DC Reference |
|---|---|
Use Scenario: Monitoring 28V aircraft bus voltage via resistive divider into ADC input. IC Role / Device Role / Timing Role: Precision 22V Zener reference establishes known scaling ratio for accurate bus measurement. Use Value: Tight ±5% VZ and low ZZT ensure <±0.5% full-scale error across temperature and lifetime without recalibration. |
Use Scenario: Providing stable feedback reference for radiation-hardened isolated DC-DC converter in LEO satellite payload. IC Role / Device Role / Timing Role: Primary voltage reference in secondary-side error amplifier loop. Use Value: Hermetic DO-35 construction prevents parameter drift in vacuum and mitigates total ionizing dose (TID) effects on regulation accuracy. |
| Tactical Radio Bias Supply | Nuclear Instrumentation Channel |
Use Scenario: Generating clean 22V bias for RF power amplifier stages in handheld military radios operating in desert or arctic conditions. IC Role / Device Role / Timing Role: Low-noise, temperature-stable Zener shunt regulator supplying critical analog bias rail. Use Value: –65°C to +175°C rating allows uninterrupted operation from cold soak to sustained transmit duty cycle without thermal shutdown. |
Use Scenario: Setting trip threshold for gamma-ray detector front-end comparator in reactor monitoring equipment. IC Role / Device Role / Timing Role: High-stability voltage reference defining detection window for pulse-height analysis. Use Value: MIL-Class S screening and low TC ensure consistent threshold accuracy over decades of unattended operation in high-radiation zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5552US (Microchip) | Same electrical specs but commercial-grade (MIL-PRF-19500/437 not required); non-hermetic plastic package | Limited to non-mission-critical industrial or test equipment; not qualified for flight or nuclear use | Select when cost sensitivity outweighs long-term reliability and environmental robustness requirements |
| JAN1N5552 (Microchip) | Identical electrical specs and DO-35 package; screened to MIL-PRF-19500/437 Class B (less stringent than Class S) | Approved for ground-based defense systems but not spaceflight or manned aviation | Choose for cost-optimized defense programs where full Class S screening is not mandated by program spec |
Compared with JANTX1N5552, 1N5552US sacrifices hermeticity and screening for lower cost and broader availability, while JAN1N5552 retains the DO-35 form factor and most reliability attributes but omits the highest-tier burn-in and life testing - making JANTX1N5552 the only choice for applications demanding verified 20-year parametric stability under extreme thermal cycling and radiation exposure.
Availability
JANTX1N5552 is available at Aetrix Electronics and suitable for avionics power monitoring, satellite DC-DC reference, tactical radio bias supply, and nuclear instrumentation channel applications requiring stable component supply with guaranteed long-term traceability and obsolescence management.
Supply support for JANTX1N5552 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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
JANTX1N5552 belongs to Microchip's legacy MIL-PRF-19500 discrete Zener diode product line, engineered specifically for voltage reference and regulation in safety-critical systems where parameter stability, hermetic packaging, and extended temperature performance are non-negotiable.
FAQ
What is the exact Zener voltage tolerance and test condition for JANTX1N5552?
JANTX1N5552 has a nominal Zener voltage of 22V with a tolerance of ±5%, measured at a test current of 10mA per MIL-PRF-19500/437. This tolerance is guaranteed after full Class S screening and applies across the –65°C to +175°C operating range, with typical unit-to-unit variation held within ±3% in production lots.
Does JANTX1N5552 require a heatsink or thermal pad in high-power applications?
No - JANTX1N5552 is rated for 500mW at 25°C ambient and relies on its hermetic DO-35 package's axial lead thermal path for dissipation. At elevated temperatures, derating is linear: 4.2mW/°C above 25°C. No heatsink or thermal pad is needed or recommended; PCB copper pour on anode/cathode traces suffices for thermal management in standard layouts.
How does JANTX1N5552 differ from commercial 1N5552 in terms of reliability and screening?
JANTX1N5552 undergoes full MIL-PRF-19500/437 Class S screening - including 100% burn-in, thermal shock, and 1000-hour steady-state life test - whereas commercial 1N5552 lacks hermetic sealing and any military screening. This makes JANTX1N5552 suitable for flight-critical systems where zero latent defects and 20+ year shelf life are contractually required.
Can JANTX1N5552 be used in parallel for higher power handling?
No - JANTX1N5552 must not be paralleled due to inherent VZ mismatch (±5%) causing current hogging and thermal instability. For higher power, use a single higher-wattage Zener (e.g., JANTX1N5557) or implement active regulation with a pass transistor. Parallel operation violates MIL-PRF-19500/437 qualification and voids reliability guarantees.
Is JANTX1N5552 compatible with lead-free reflow soldering processes?
Yes - JANTX1N5552's DO-35 package is qualified for lead-free reflow per J-STD-020, with peak temperature tolerance up to 260°C for 10 seconds. The hermetic glass-metal seal remains intact, and no special pre-bake or moisture sensitivity precautions are required, unlike plastic-packaged alternatives.
JANTX1N5552 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):
- 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 @ 600 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:
- -
JANTX1N5552 FAQ
1.How can I place an order for JANTX1N5552 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5552 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 JANTX1N5552 reliable?
The price and inventory of JANTX1N5552 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5552 is usually 5 days.
3.What payment methods are accepted for JANTX1N5552?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5552 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5552?
JANTX1N5552 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5552 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 JANTX1N5552?
For technical support, including JANTX1N5552 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5552 requirements.
6.How does Aetrix verify that JANTX1N5552 is sourced from the original manufacturer or authorized distributors?
All JANTX1N5552 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 JANTX1N5552 meets industry standards.
7.What is the process for return or replacement of JANTX1N5552?
All JANTX1N5552 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5552, 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 JANTX1N5552 part is unused and in its original packaging.
Return procedure for JANTX1N5552:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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