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Microchip Technology 1N5369AE3/TR13
- Part No.:
- 1N5369AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5369AE3/TR13.pdf
- Description:
- DIODE ZENER 51V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,749
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Product details
Overview
1N5369AE3/TR13 from Microsemi is a 51 V, ±10% tolerance, 5 W axial-leaded silicon Zener diode optimized for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation. It delivers stable regulation at 25 mA test current with 27 Ω dynamic impedance and supports surge currents up to 230 A (8.3 ms half-sine).
For engineers reviewing the 1N5369AE3/TR13 datasheet, 1N5369AE3/TR13 pinout, 1N5369AE3/TR13 application, or 1N5369AE3/TR13 equivalent, key selection criteria include its ±10% voltage tolerance, 51 V nominal Zener voltage, 25 mA test current, 27 Ω dynamic impedance at IZT, and RoHS-compliant e3 suffix with tape-and-reel TR13 packaging.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse-bias connection where the banded end is positive relative to the anode. Its thermal resistance is 25 °C/W junction-to-lead (at 10 mm lead length) and 85 °C/W junction-to-ambient on FR4 board, enabling reliable 5 W dissipation with appropriate heat sinking.
Regulation performance is defined by ΔVZ = 0.90 V - the voltage difference between measurements at 10% and 50% of maximum Zener current (IZM = 98 mA). It exhibits low reverse leakage (<0.5 µA at VR = 40.8 V) and maintains stability across –65 °C to +150 °C operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 51 V ±10% - defines regulated output voltage under specified test conditions; high-end tolerance limit is 56.1 V for IZM calculation. |
| Test Current (IZT) | 25 mA - standardized DC current at which VZ is measured; ensures repeatable characterization and design margining. |
| Dynamic Impedance (ZZ) | 27 Ω - AC impedance at 1 kHz, indicating small-signal voltage variation per mA change in current near IZT. |
| Max Regulator Current (IZM) | 98 mA - maximum continuous DC current at TL = 25 °C; derived from P = 5 W / VZ(max) = 5 W / 56.1 V. |
| Surge Current (IZSM) | 230 A - non-repetitive peak current for 8.3 ms half-sine waveform; critical for transient overvoltage clamping. |
| Reverse Leakage (IR) | <0.5 µA at VR = 40.8 V - ensures minimal parasitic current in high-impedance bias networks or standby modes. |
| Voltage Regulation (ΔVZ) | 0.90 V - difference between VZ measured at 9.8 mA and 49 mA; quantifies regulation linearity over operational current range. |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL standard; void-free UL94V-0 epoxy body; matte-tin RoHS-compliant plating; cathode indicated by color band; weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener operation. | Must be held at lower voltage than cathode during regulation; forward voltage ≤1.2 V @ 1.0 A enables use as clamp or rectifier if needed. |
| Cathode | Current exit terminal in forward bias; higher-potential terminal during Zener breakdown. | Banded end; connected to regulated rail or feedback node; polarity reversal prevents regulation and risks damage. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures industry-standard mechanical dimensions, marking, and reliability baseline across 1N5333B–1N5388B series. |
| ±10% voltage tolerance (A suffix) | Provides cost-optimized regulation accuracy suitable for non-critical feedback paths and protection thresholds. |
| RoHS-compliant e3 suffix | Confirms lead-free, halogen-free construction meeting EU Directive 2011/65/EU without derating or performance trade-off. |
| Tape-and-reel TR13 packaging | Enables automated SMT-compatible placement despite axial form factor; standard EIA-296 compliance ensures feeder compatibility. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to assembly; simplifies handling and reduces manufacturing overhead. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback loop via optocoupler interface. IC Role / Device Role / Timing Role: Primary-side voltage reference establishing precise error threshold for PWM controller shutdown or duty cycle adjustment. Use Value: Maintains ±10% output accuracy across load and line variations; 27 Ω ZZ minimizes feedback noise coupling into control loop. |
Use Scenario: Clamps transient surges on 48 V telecom or industrial bus lines exceeding safe operating limits. IC Role / Device Role / Timing Role: Two-terminal shunt protector diverting excess energy to ground when bus voltage exceeds 51 V + tolerance margin. Use Value: Withstands 230 A surge (8.3 ms) without failure; <0.5 µA leakage avoids loading sensitive monitoring circuitry during normal operation. |
| Programmable Reference Voltage Source | DC-DC Converter Output Trim |
Use Scenario: Generates stable 51 V reference for ADC input scaling, DAC output calibration, or analog front-end biasing. IC Role / Device Role / Timing Role: Passive voltage reference providing fixed potential against which other signals are measured or compared. Use Value: ΔVZ = 0.90 V ensures predictable deviation across 10–50% IZM range; low thermal resistance enables stable operation on copper heatsink pads. |
Use Scenario: Fine-tunes output voltage of adjustable DC-DC module (e.g., LM2596-based) via resistor divider offset. IC Role / Device Role / Timing Role: Precision shunt element injecting controlled current into feedback node to shift regulation point. Use Value: Tight 25 mA IZT and 27 Ω ZZ allow predictable current injection; ±10% tolerance aligns with typical trim range requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5369B | Same 51 V nominal voltage but ±5% tolerance (B suffix); 25 mA IZT; 27 Ω ZZ; identical package and thermal specs. | Higher accuracy required for tighter regulation loops or reduced margin in protection thresholds. | Select 1N5369B when ±5% tolerance is mandatory; otherwise 1N5369AE3/TR13 offers cost advantage for less stringent designs. |
| MMBZ5255B (SOT-23) | Surface-mount 51 V Zener; ±5% tolerance; 20 mA IZT; 30 Ω ZZ; 0.5 W rating; different thermal profile and surge capability. | Space-constrained PCBs where axial leads are impractical; lower power dissipation acceptable. | Choose MMBZ5255B only for compact layouts with <0.5 W average dissipation; 1N5369AE3/TR13 remains preferred for 5 W thermal management and surge robustness. |
Compared with 1N5369B and MMBZ5255B, the 1N5369AE3/TR13 provides optimal balance of axial-mount reliability, 5 W power handling, RoHS compliance, and cost-effective ±10% accuracy - making it ideal for industrial power supplies and protection circuits where absolute precision is secondary to ruggedness and manufacturability.
Availability
1N5369AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom surge protection, programmable reference circuits, and DC-DC converter trimming requiring stable component supply and long-term obsolescence mitigation.
Supply support for 1N5369AE3/TR13 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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for robust, high-power voltage regulation in harsh environments - emphasizing thermal resilience, surge immunity, and JEDEC-standardized manufacturability across military and commercial applications.
FAQ
What is the Zener voltage tolerance of the 1N5369AE3/TR13?
The 1N5369AE3/TR13 has a nominal Zener voltage of 51 V with ±10% tolerance, as indicated by the "A" suffix per Microsemi's documentation. This means the actual measured VZ falls between 45.9 V and 56.1 V at 25 °C and 25 mA test current. The tolerance directly impacts regulation accuracy in feedback or protection circuits and must be accounted for in worst-case design analysis.
Does the 1N5369AE3/TR13 require moisture preconditioning before soldering?
No, the 1N5369AE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it is not hygroscopic and requires no dry pack, baking, or special handling prior to reflow or wave soldering. This simplifies manufacturing logistics and eliminates risk of popcorning during assembly - a key advantage over higher-MSL discrete components.
What is the maximum continuous Zener current for the 1N5369AE3/TR13?
The maximum continuous Zener current (IZM) for the 1N5369AE3/TR13 is 98 mA at TL = 25 °C (3/8″ lead length), calculated as P = 5 W / VZ(max) = 5 W / 56.1 V. Derating applies above 25 °C per Figure 1 in the datasheet; at 75 °C lead temperature, IZM drops to approximately 60 mA to maintain safe junction temperature.
Can the 1N5369AE3/TR13 be used in surface-mount applications?
The 1N5369AE3/TR13 is an axial-leaded T-18 package and is not inherently surface-mount compatible. However, its TR13 tape-and-reel packaging allows automated placement using axial-component feeders. For true SMT integration, Microsemi offers the SMBJ5369B or SMBG5369B as surface-mount equivalents - though these differ in power rating, thermal path, and surge capability.
How does the 1N5369AE3/TR13 compare to the 1N5369B in terms of electrical performance?
The 1N5369AE3/TR13 and 1N5369B share identical nominal voltage (51 V), test current (25 mA), dynamic impedance (27 Ω), and thermal characteristics. Their sole electrical difference is tolerance: "A" denotes ±10%, while "B" denotes ±5%. All other parameters - including IZM, IR, ΔVZ, and surge rating - are unchanged, making them functionally interchangeable except where tighter regulation is required.
1N5369AE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 51 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 27 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 36.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- T-18
1N5369AE3/TR13 FAQ
1.How can I place an order for 1N5369AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5369AE3/TR13 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 1N5369AE3/TR13 reliable?
The price and inventory of 1N5369AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5369AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5369AE3/TR13?
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4.How is shipping managed for 1N5369AE3/TR13?
1N5369AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5369AE3/TR13 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 1N5369AE3/TR13?
For technical support, including 1N5369AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5369AE3/TR13 requirements.
6.How does Aetrix verify that 1N5369AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5369AE3/TR13 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 1N5369AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5369AE3/TR13?
All 1N5369AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5369AE3/TR13, 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 1N5369AE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5369AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5369AE3/TR13 Tags
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