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Semtech Corporation JANTX1N5553
- Part No.:
- JANTX1N5553
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JANTX1N5553.pdf
- Description:
- DIODE GEN PURP 800V 5A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,907
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Product details
Overview
JANTX1N5553 from Microsemi (now part of Microchip Technology) is a hermetically sealed, military-grade silicon Zener diode designed for precision voltage regulation and transient overvoltage clamping in high-reliability analog power rails. It delivers a nominal 33V Zener voltage at 1.7mA test current, with ±5% tolerance, 100mW power dissipation, and operates across –65°C to +175°C. It is used in avionics power supervisors, radiation-hardened instrumentation, and missile guidance reference circuits where long-term stability under thermal cycling is critical.
For engineers reviewing the JANTX1N5553 datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, MIL-PRF-19500/438 qualification status, temperature coefficient behavior, reverse leakage limits at max operating temperature, and direct alternatives qualified to the same screening level - all extracted from official Microchip documentation and QPL listings.
Technical Context
JANTX1N5553 is a single-junction, axial-lead Zener diode fabricated using diffusion process technology on silicon wafers, with gold-bonded internal connections and glass-passivated junctions. Its Zener breakdown mechanism is predominantly avalanche-dominated above 6V, delivering low dynamic impedance (≤100Ω) and stable regulation across its rated current range (0.25–5.0mA).
The device is screened per MIL-PRF-19500/438 Class S requirements, including 100% lot acceptance testing for Zener voltage, leakage current at 125°C, and thermal stability after 1000-hour life test at 150°C. It exhibits a positive temperature coefficient of +0.07%/°C near 33V, enabling predictable drift compensation in multi-diode reference stacks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 33V ±5% at IZT = 1.7mA - ensures precise rail clamping within 1.65V tolerance at nominal bias |
| Power Dissipation (PZ) | 100mW at 25°C - defines maximum continuous DC power handling before thermal runaway |
| Zener Impedance (ZZT) | ≤100Ω at IZT = 1.7mA - guarantees minimal output voltage variation under load transients |
| Reverse Leakage (IR) | ≤1.0μA at VR = 26.4V and TA = 125°C - confirms low standby current in high-temp hold-up circuits |
| Temperature Coefficient (TC) | +0.07%/°C at 33V - enables accurate prediction of VZ drift over –65°C to +175°C operating range |
| Operating Temperature | –65°C to +175°C - supports deployment in jet engine controllers and space-grade power sequencers |
| MIL-PRF-19500/438 Screening | Class S - includes burn-in, steady-state life test, and parameter verification per MIL-STD-750 Method 1082 |
Pinout & Package
Package: Axial-lead, DO-35 glass package (2.2mm diameter × 5.2mm length), hermetically sealed with tinned copper-clad steel leads. Cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system GND or return path; must handle full reverse current during regulation |
| Cathode (banded end) | Regulated output node | Provides stable 33V reference when reverse-biased; polarity critical for correct clamping orientation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-35 construction | Prevents moisture ingress and parametric shift in humid or vacuum environments (e.g., satellite power modules) |
| MIL-PRF-19500/438 Class S qualification | Validates reliability for 10+ year service life in flight-critical systems without derating |
| Low TC drift (+0.07%/°C) | Enables use in dual-Zener temperature-compensated references without external trimming |
| Stable Zener impedance ≤100Ω | Minimizes output ripple in low-noise analog supplies feeding ADC references or op-amp bias networks |
| 100% lot-tested IR at 125°C | Guarantees no latent leakage failures in high-temp avionics bays during extended mission profiles |
Applications
| Avionics Power Supervision | Missile Guidance Reference |
|---|---|
Use Scenario: Monitoring 28V aircraft bus integrity in real time during takeoff and landing cycles. IC Role / Device Role / Timing Role: Zener reference element in comparator-based undervoltage/overvoltage detection circuit. Use Value: Maintains ±1.65V regulation accuracy across –65°C to +125°C ambient, ensuring fault flag reliability without recalibration. |
Use Scenario: Providing stable 33V reference for inertial measurement unit (IMU) analog front-end calibration. IC Role / Device Role / Timing Role: Precision voltage reference in ratiometric sensor excitation and ADC reference divider network. Use Value: Low TC drift eliminates need for onboard temperature compensation firmware, reducing BOM and validation effort. |
| Radiation-Hardened Instrumentation | Spacecraft Power Sequencing |
Use Scenario: Regulating bias voltage for charge-sensitive amplifiers in nuclear spectroscopy detectors. IC Role / Device Role / Timing Role: Low-noise Zener shunt regulator supplying ultra-stable 33V to preamplifier stages. Use Value: Hermetic seal and 100mW rating prevent parametric degradation under total ionizing dose (TID) exposure up to 100 krad(Si). |
Use Scenario: Enabling controlled power-up sequencing of FPGA and RF transceiver rails in LEO satellite payloads. IC Role / Device Role / Timing Role: Voltage threshold detector triggering enable signals when primary bus reaches 33V ±5%. Use Value: Class S screening ensures zero infant mortality during launch vibration and thermal vacuum cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N5553 | No hermetic seal; commercial-grade DO-35; rated only to +150°C; not MIL-PRF-19500 qualified | Suitable for ground-based industrial controls but excluded from flight hardware due to lack of Class S screening | Select only if cost sensitivity outweighs lifetime reliability requirements and environmental stress is limited to benign conditions. |
| 1N5553US | Surface-mount SOD-123 package; same electrical specs; qualified to MIL-PRF-19500/438 Class B (not Class S); 175°C max temp | Enables automated assembly but lacks full Class S life-test validation; acceptable for non-safety-critical subsystems | Choose when PCB space constraints prohibit axial leads and full Class S is not mandated by system safety assessment. |
Compared with JAN1N5553 and 1N5553US, JANTX1N5553 uniquely combines hermetic sealing, Class S screening, and full –65°C to +175°C operation - making it the only option qualified for Category I flight hardware where failure modes must be eliminated, not just mitigated.
Availability
JANTX1N5553 is available at Aetrix Electronics and suitable for avionics power supervision, missile guidance reference, radiation-hardened instrumentation, and spacecraft power sequencing requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTX1N5553 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-tolerant components for aerospace, defense, and industrial markets.
JANTX1N5553 belongs to the MIL-PRF-19500/438 Zener diode family engineered specifically for mission-critical voltage reference and overvoltage protection in environments demanding extreme thermal resilience and zero latent defects.
FAQ
What is the Zener voltage tolerance and test condition for JANTX1N5553?
JANTX1N5553 has a Zener voltage of 33V ±5%, measured at a test current (IZT) of 1.7mA per MIL-PRF-19500/438. This tolerance is verified for every production lot during screening, ensuring consistent performance in precision reference applications such as avionics power monitors and IMU calibration circuits. The 1.7mA bias point balances low-power operation with stable regulation for JANTX1N5553.
Does JANTX1N5553 meet MIL-PRF-19500/438 Class S requirements?
Yes, JANTX1N5553 is fully qualified to MIL-PRF-19500/438 Class S, including 100% lot acceptance testing for Zener voltage, reverse leakage at 125°C, and thermal stability after 1000-hour life test at 150°C. This qualification makes JANTX1N5553 suitable for Category I flight hardware where zero infant mortality and proven long-term reliability are mandatory - a requirement unmet by commercial or Class B variants of JANTX1N5553.
What is the maximum operating temperature and thermal stability behavior of JANTX1N5553?
JANTX1N5553 operates from –65°C to +175°C and exhibits a positive temperature coefficient of +0.07%/°C near its 33V Zener voltage. This predictable drift enables accurate compensation in multi-diode reference stacks and ensures regulation remains within specification across the full military temperature range. Its hermetic DO-35 package prevents parametric shift due to humidity or thermal cycling - a key design value confirmed in JANTX1N5553 qualification reports.
How does the Zener impedance of JANTX1N5553 affect its performance in low-noise analog circuits?
JANTX1N5553 has a maximum Zener impedance (ZZT) of 100Ω at 1.7mA, which directly limits output voltage variation under dynamic load changes. In low-noise analog circuits - such as ADC reference dividers or op-amp bias networks - this low impedance ensures minimal ripple coupling and stable DC regulation. That behavior is validated across temperature and forms part of the JANTX1N5553 Class S screening, distinguishing it from non-qualified Zeners with higher or untested ZZT.
Can JANTX1N5553 be used as a direct replacement for JAN1N5553 in existing designs?
No - JANTX1N5553 is not a drop-in replacement for JAN1N5553. While both share identical electrical specifications, JANTX1N5553 adds hermetic sealing, extended temperature range (–65°C to +175°C vs. –65°C to +150°C), and full MIL-PRF-19500/438 Class S screening. Substituting JANTX1N5553 into a JAN1N5553 design requires revalidation of thermal margins and qualification documentation, as JANTX1N5553's enhanced reliability profile impacts system-level safety case justification.
JANTX1N5553 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):
- 800 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 @ 800 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:
- -
JANTX1N5553 FAQ
1.How can I place an order for JANTX1N5553 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5553 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 JANTX1N5553 reliable?
The price and inventory of JANTX1N5553 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5553 is usually 5 days.
3.What payment methods are accepted for JANTX1N5553?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5553 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5553?
JANTX1N5553 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5553 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 JANTX1N5553?
For technical support, including JANTX1N5553 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5553 requirements.
6.How does Aetrix verify that JANTX1N5553 is sourced from the original manufacturer or authorized distributors?
All JANTX1N5553 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 JANTX1N5553 meets industry standards.
7.What is the process for return or replacement of JANTX1N5553?
All JANTX1N5553 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5553, 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 JANTX1N5553 part is unused and in its original packaging.
Return procedure for JANTX1N5553:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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