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Microchip Technology 1N5524CUR-1/TR
- Part No.:
- 1N5524CUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5524CUR-1/TR.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:160
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Product details
Overview
1N5524CUR-1/TR from Microsemi is a 5.6 V, ±5% tolerance, 500 mW glass MELF (DO-213AA) Zener diode with metallurgical bond construction, qualified to MIL-PRF-19500/437 JANTX level, and used for precision voltage regulation in aerospace power conditioning and analog reference circuits.
For engineers reviewing the 1N5524CUR-1/TR datasheet, 1N5524CUR-1/TR pinout, 1N5524CUR-1/TR application, or 1N5524CUR-1/TR equivalent, key selection criteria include Zener voltage tolerance (±5%), low dynamic impedance (30 Ω @ 3 mA), radiation hardness, hermetic MELF packaging, and military-grade reliability qualification.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 5.6 V at 3.0 mA test current (IZT), exhibiting 30 Ω dynamic impedance (ZZT) and 0.65 V regulation factor (∆VZ) over its operating current range. Its junction temperature range spans −65 °C to +175 °C, supporting operation in extreme thermal environments.
The DO-213AA MELF package provides hermetic sealing and low parasitic capacitance (<1.5 pF typical), while internal metallurgical bonding ensures mechanical robustness and long-term stability under thermal cycling and vibration-critical for avionics and space-qualified systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V ±5% at IZT = 3.0 mA - defines stable regulation point for biasing and reference circuits |
| Power Dissipation (PD) | 0.5 W - supports continuous operation up to 50 °C ambient on FR4 board with derating above |
| Dynamic Impedance (ZZT) | 30 Ω @ IZT = 3.0 mA - ensures minimal output voltage variation under load current changes |
| Regulation Factor (∆VZ) | 0.65 V - maximum voltage deviation between IZT and IZL = 0.25 mA, indicating tight regulation near knee |
| Reverse Leakage (IR) | 2.0 µA @ VR = 3.0 V - low leakage preserves accuracy in high-impedance reference nodes |
| Junction Temp Range | −65 °C to +175 °C - enables deployment in engine-mounted or space-grade electronics without thermal derating loss |
| Package | DO-213AA (MELF) - hermetically sealed glass body with end-cap terminations, RoHS-compliant matte-tin plating |
Pinout & Package
DO-213AA (MELF) glass package with two end-cap terminals; cathode identified by black band. No discrete pins-device mounts axially with solderable metallized end caps per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener anode connection in reverse-bias configuration | Must be held at higher potential than anode to enable breakdown regulation; polarity critical for correct operation |
| Anode (unbanded end) | Zener cathode connection in reverse-bias configuration | Reference ground or return node; connects to system common or regulated rail return path |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/437 JANTX qualification | Validated reliability for aerospace and defense programs requiring screened lots, lot traceability, and extended life testing |
| Metallurgical bond construction | Eliminates die attach voids and interfacial delamination, improving thermal transfer and shock/vibe survivability |
| Hermetic DO-213AA MELF package | Prevents moisture ingress and corrosion, enabling >20-year shelf life and stable parametric drift in humid environments |
| Radiation hardness (per MicroNote 050) | Tolerates total ionizing dose (TID) ≥100 krad(Si) without parameter shift-suitable for low-earth orbit applications |
| Low noise density (ND) | 1.0 µV/√Hz @ IZ = 250 µA - minimizes contribution to analog signal chain noise floor in precision references |
Applications
| Aerospace Power Conditioning | Avionics Reference Voltage |
|---|---|
Use Scenario: Regulating auxiliary 5.6 V supply rails in flight control computers where input voltage varies widely during battery/switchover transients. IC Role / Device Role / Timing Role: Primary shunt voltage reference providing stable bias for op-amps and ADC drivers. Use Value: Maintains <±10 mV output deviation across −55 °C to +125 °C and 1–10 mA load range due to low ∆VZ and RθJA = 300 °C/W. |
Use Scenario: Generating precision 5.6 V reference for analog-to-digital conversion in inertial measurement units (IMUs). IC Role / Device Role / Timing Role: Low-noise, radiation-hardened voltage reference source for 16-bit SAR ADC front-end. Use Value: Delivers 1.0 µV/√Hz noise density and <0.05% long-term drift, meeting MIL-STD-883 Class B requirements. |
| Satellite Power Management | Defense Radar Bias Supply |
Use Scenario: Providing regulated bias to GaAs FET amplifiers in L-band satellite transponders exposed to vacuum and thermal cycling. IC Role / Device Role / Timing Role: Hermetically sealed Zener reference maintaining regulation despite outgassing and zero-gravity thermal gradients. Use Value: DO-213AA package withstands 1000+ thermal cycles (−65 °C/+175 °C) without seal failure or VZ shift >0.1%. |
Use Scenario: Stabilizing gate bias voltage for pulsed T/R module driver stages in ground-based radar systems. IC Role / Device Role / Timing Role: Fast-recovery shunt regulator absorbing transient energy during RF pulse turn-on/off events. Use Value: Withstands 200 A surge current (per MIL-STD-750 Method 3011) and maintains VZ stability within ±0.2% after 10⁶ pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5524US-1 | Same 5.6 V ±5%, but in DO-35 axial package; no MIL qualification; commercial-only RoHS option | Lacks JANTX screening, hermeticity, and radiation hardness; suitable only for non-critical industrial prototypes | Select when cost and lead time outweigh reliability requirements and PCB layout permits axial mounting |
| SMF5.6A | 5.6 V ±5%, SOD-123 package, 1 W rating, AEC-Q200 qualified; no military spec or radiation data | Higher power handling but plastic encapsulation limits humidity resistance and long-term stability vs. glass MELF | Choose for automotive ECUs needing higher surge immunity but not requiring space-grade longevity or TID tolerance |
Compared with 1N5524CUR-1/TR, the 1N5524US-1 offers lower cost and faster availability but sacrifices hermeticity and radiation performance, while SMF5.6A trades military reliability for automotive qualification and higher power-neither is a drop-in replacement due to package and qualification mismatch.
Availability
1N5524CUR-1/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, avionics reference voltage generation, and satellite power management requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N5524CUR-1/TR 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 Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and military-qualified analog and mixed-signal components.
The 1N55xxBUR-1 series was designed specifically for mission-critical voltage reference applications in aerospace, defense, and space systems where parametric stability, hermetic packaging, and MIL-spec compliance are mandatory.
FAQ
What is the Zener voltage tolerance and test current for the 1N5524CUR-1/TR?
The 1N5524CUR-1/TR has a nominal Zener voltage of 5.6 V with a guaranteed tolerance of ±5% (B suffix), measured at a test current (IZT) of 3.0 mA. This tolerance is fully specified across the full operating temperature range per MIL-PRF-19500/437, ensuring consistent regulation in demanding environments where the 1N5524CUR-1/TR is deployed.
Is the 1N5524CUR-1/TR suitable for space applications?
Yes-the 1N5524CUR-1/TR is radiation-hardened per Microsemi MicroNote 050 (≥100 krad(Si) TID tolerance) and qualified to MIL-PRF-19500/437 JANTX level, making it suitable for low-earth orbit missions. Its hermetic DO-213AA package and metallurgical bond construction further ensure reliability under vacuum, thermal cycling, and launch vibration-key requirements for space-grade use of the 1N5524CUR-1/TR.
Does the 1N5524CUR-1/TR have RoHS compliance?
The 1N5524CUR-1/TR is available in RoHS-compliant versions (e3 suffix) for commercial-grade orders only; military-qualified (JANTX) units retain tin-lead plating per MIL-STD-750. The "TR" suffix indicates tape-and-reel packaging per EIA-481-1-A, and RoHS status must be confirmed at order entry-RoHS compliance applies strictly to the end-cap plating, not the glass body, of the 1N5524CUR-1/TR.
What is the maximum reverse leakage current for the 1N5524CUR-1/TR?
The 1N5524CUR-1/TR guarantees a maximum reverse leakage current (IR) of 2.0 µA at VR = 3.0 V, measured at 25 °C. This low leakage preserves accuracy in high-impedance reference networks and ensures minimal error contribution in precision analog circuits where the 1N5524CUR-1/TR serves as a primary voltage standard.
How does the DO-213AA package affect PCB layout for the 1N5524CUR-1/TR?
The DO-213AA (MELF) package requires axial surface-mount footprint with pad dimensions A = 5.08 mm, B = 1.40 mm, C = 2.03 mm per the datasheet. Its cylindrical geometry demands symmetric solder fillets and COE-matched substrates (target ~6 ppm/°C) to prevent stress-induced parameter shift-layout deviations directly impact long-term VZ stability of the 1N5524CUR-1/TR.
1N5524CUR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 3.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N5524CUR-1/TR FAQ
1.How can I place an order for 1N5524CUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5524CUR-1/TR 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 1N5524CUR-1/TR reliable?
The price and inventory of 1N5524CUR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5524CUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N5524CUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5524CUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5524CUR-1/TR?
1N5524CUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5524CUR-1/TR 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 1N5524CUR-1/TR?
For technical support, including 1N5524CUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5524CUR-1/TR requirements.
6.How does Aetrix verify that 1N5524CUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N5524CUR-1/TR 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 1N5524CUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N5524CUR-1/TR?
All 1N5524CUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5524CUR-1/TR, 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 1N5524CUR-1/TR part is unused and in its original packaging.
Return procedure for 1N5524CUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5524CUR-1/TR Tags
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