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Microchip Technology 1N5369BE3/TR13
- Part No.:
- 1N5369BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5369BE3/TR13.pdf
- Description:
- DIODE ZENER 51V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:3,638
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Product details
Overview
1N5369BE3/TR13 from Microsemi is a 51 V, ±5% tolerance, 5 W axial-leaded silicon Zener diode designed for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation. It operates from -65°C to +150°C, supports 25 mA test current (IZT), exhibits 27 Ω dynamic impedance (ZZ), and delivers up to 98 mA maximum Zener current (IZM) with adequate heat sinking.
For engineers reviewing the 1N5369BE3/TR13 datasheet, 1N5369BE3/TR13 pinout, 1N5369BE3/TR13 application, or 1N5369BE3/TR13 equivalent, key selection criteria include its 51 V nominal Zener voltage, ±5% tolerance (B suffix), RoHS-compliant e3 plating, tape-and-reel TR13 packaging, and thermal resistance of 25 °C/W junction-to-lead at 10 mm lead length.
Technical Context
This discrete Zener diode functions as a two-terminal voltage reference device operating in reverse breakdown. Its regulation performance is defined by measured Zener voltage (VZ = 51 V) at 25 mA (IZT), dynamic impedance (ZZ = 27 Ω), and voltage regulation (ΔVZ = 2.5 V) between 10% and 50% of IZM.
The device uses a void-free thermosetting epoxy T-18 package with tin-plated leads, rated for 5.0 W steady-state dissipation at 25°C lead temperature (TL), derating linearly above 25°C per Figure 1. It meets MIL-STD-750 Method 1020 for ESD insensitivity and IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 51 V ±5% - precise regulation point for feedback or clamping at nominal 51 V |
| Test Current (IZT) | 25 mA - standardized DC current at which VZ is specified and measured |
| Dynamic Impedance (ZZ) | 27 Ω - low AC resistance ensures stable voltage under varying load currents |
| Max Zener Current (IZM) | 98 mA - maximum continuous reverse current before exceeding 5 W power limit |
| Power Dissipation (Pd) | 5.0 W at TL = 25°C - requires thermal management beyond 25°C per derating curve |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design using 10 mm lead length as heatsink path |
| Reverse Leakage (IR) | 0.5 μA max at VR = 40.8 V - minimal off-state current below knee voltage |
Pinout & Package
T-18 axial-leaded plastic package with cathode band marking; void-free UL94V-0 epoxy body, matte-tin RoHS-compliant plating per MIL-STD-750 Method 2026; weight 0.7 g; lead length 10 mm standard for thermal rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-voltage side in reverse-bias operation | Connected to circuit ground or lower potential node when used as shunt regulator |
| Cathode | Reverse breakdown terminal / high-voltage side in regulation mode | Banded end; connected to unregulated input or voltage rail requiring stabilization at 51 V |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures industry-standard electrical behavior and interchangeability across suppliers |
| ±5% voltage tolerance (B suffix) | Enables tighter regulation than ±10% (A) or ±20% (no suffix) variants in feedback paths |
| RoHS-compliant e3 marking | Confirms lead-free annealed matte-tin plating meeting environmental compliance requirements |
| Tape-and-reel TR13 packaging | Supports automated SMT placement despite axial-leaded form factor via carrier tape |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and bake-out prior to assembly |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter secondary-side feedback loop using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Precision 51 V Zener reference providing stable threshold for error signal generation. Use Value: Maintains ±1.5% output regulation across line/load/temperature with low ΔVZ (2.5 V) and stable ZZ (27 Ω). | Use Scenario: Clamps transient overvoltage on 48 V DC bus in industrial control systems during load dump or inductive kick events. IC Role / Device Role / Timing Role: Shunt protection element conducting surge current above 40.8 V (VR) to prevent downstream IC damage. Use Value: Withstands 98 mA continuous and 230 A peak surge (8.3 ms half-sine) without degradation. |
| Voltage Reference Generator | Linear Regulator Pre-regulation |
Use Scenario: Provides stable 51 V reference for analog-to-digital converter (ADC) calibration or sensor excitation circuitry in test equipment. IC Role / Device Role / Timing Role: Two-terminal passive reference source with low temperature coefficient and minimal IR drift. Use Value: Delivers <0.5 μA leakage at 40.8 V and maintains regulation over -65°C to +150°C ambient range. | Use Scenario: Reduces input-to-output differential in high-input-voltage linear regulators (e.g., 78xx series) to minimize power dissipation and thermal stress. IC Role / Device Role / Timing Role: Pre-regulator dropping excess voltage before LDO input, improving efficiency and thermal margin. Use Value: Handles 5 W continuous dissipation with 25 °C/W RθJL, enabling compact heatsink design at 10 mm lead length. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5369BRLG | Same 51 V ±5%, 5 W rating; surface-mount SMB package instead of axial T-18 | Requires PCB layout change; suitable for space-constrained or fully SMT designs | Select when board real estate or automated assembly mandates SMT over through-hole |
| MMBZ5255BS-7-F | 51 V ±5%, but 200 mW rating (SOD-123); 20× lower power handling than 1N5369BE3/TR13 | Limited to low-current references or signal-level clamping; not suitable for >10 mA loads | Select only for ultra-low-power biasing where thermal mass and surge capability are non-critical |
Compared with 1N5369BRLG and MMBZ5255BS-7-F, the 1N5369BE3/TR13 provides superior thermal robustness (5 W vs. 0.2 W), higher surge current (230 A vs. <1 A), and proven reliability in high-stress industrial power applications-making it the preferred choice for mains-connected or high-energy systems.
Availability
1N5369BE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and precision voltage reference generators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 1N5369BE3/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 1N53xxB series was engineered for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal stability, surge resilience, and long-term parametric consistency under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N5369BE3/TR13?
The 1N5369BE3/TR13 has a Zener voltage tolerance of ±5%, indicated by the "B" suffix in its part number. This means its measured VZ at 25 mA (IZT) falls within 48.45 V to 53.55 V at 25°C lead temperature. The tolerance is guaranteed per JEDEC specification and verified during final test screening.
Does the 1N5369BE3/TR13 require dry packing before PCB assembly?
No, the 1N5369BE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored indefinitely at ≤30°C/60% RH without baking. This eliminates pre-assembly bake cycles and simplifies manufacturing logistics for the 1N5369BE3/TR13.
What is the maximum surge current rating for the 1N5369BE3/TR13?
The 1N5369BE3/TR13 is rated for a maximum non-recurrent surge current (IZSM) of 230 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating applies under specified mounting conditions and enables reliable transient suppression in industrial power rails where the 1N5369BE3/TR13 serves as primary overvoltage clamp.
How does the thermal resistance of the 1N5369BE3/TR13 affect PCB layout?
The 1N5369BE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when measured at 10 mm (3/8 inch) lead length from the body. To achieve full 5 W power rating, PCB traces connected to its leads must act as heatsinks-typically requiring ≥4 mm² copper pads and ≥1 mm wide, 25 mm long traces per lead, as validated in Microsemi's thermal characterization for the 1N5369BE3/TR13.
Is the 1N5369BE3/TR13 compatible with lead-free reflow soldering processes?
Yes, the 1N5369BE3/TR13 features RoHS-compliant matte-tin plating qualified for lead-free soldering at 260°C for 10 seconds maximum, per MIL-STD-750 Method 2026. Its T-18 epoxy body is UL94V-0 rated and withstands repeated thermal excursions typical of modern reflow profiles-ensuring mechanical and electrical integrity of the 1N5369BE3/TR13 after assembly.
1N5369BE3/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:
- ±5%
- 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
1N5369BE3/TR13 FAQ
1.How can I place an order for 1N5369BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5369BE3/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 1N5369BE3/TR13 reliable?
The price and inventory of 1N5369BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5369BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5369BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5369BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5369BE3/TR13?
1N5369BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5369BE3/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 1N5369BE3/TR13?
For technical support, including 1N5369BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5369BE3/TR13 requirements.
6.How does Aetrix verify that 1N5369BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5369BE3/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 1N5369BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5369BE3/TR13?
All 1N5369BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5369BE3/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 1N5369BE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5369BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5369BE3/TR13 Tags
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MM5Z5V1ST1G
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