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Microchip Technology 1N5352AE3/TR8
- Part No.:
- 1N5352AE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5352AE3/TR8.pdf
- Description:
- DIODE ZENER 15V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,620
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Product details
Overview
1N5352AE3/TR8 from Microsemi is a silicon 5 W axial-leaded Zener diode with nominal regulation voltage of 15 V, ±10% tolerance (A suffix), 2.5 Ω maximum dynamic impedance at 75 mA test current, and 6.3 A maximum surge current. It operates from –65 °C to +150 °C and is used for voltage reference and overvoltage protection in power supply feedback loops, DC-DC converter regulation, and industrial sensor biasing.
For engineers reviewing the 1N5352AE3/TR8 datasheet, 1N5352AE3/TR8 pinout, 1N5352AE3/TR8 application, or 1N5352AE3/TR8 equivalent, this page delivers verified electrical specs, thermal derating behavior, RoHS-compliant packaging (e3), tape-and-reel delivery (TR8), and real-world design implications for stable 15 V regulation under varying load and temperature conditions.
Technical Context
This device functions as a two-terminal voltage reference operating in reverse breakdown. Its 15 V nominal Zener voltage is specified at 75 mA test current (IZT) with 2.5 Ω dynamic impedance (ZZ), ensuring low voltage drift across operating current range. The ±10% tolerance (A suffix) defines its initial accuracy band without trimming.
Thermal performance is defined by 25 °C/W junction-to-lead resistance at 10 mm lead length and 85 °C/W junction-to-ambient on FR4 PCB - critical for determining safe continuous current under heatsink-limited conditions. Surge capability is rated at 6.3 A peak for 8.3 ms half-sine waveform per JEDEC standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V nominal at IZT = 75 mA; defines stable regulation point for feedback networks. |
| Tolerance | ±10% (A suffix); sets initial accuracy window for untrimmed reference applications. |
| Power Dissipation | 5.0 W at TL = 25 °C; requires thermal management beyond 25 °C ambient or lead temperature. |
| Dynamic Impedance (ZZ) | 2.5 Ω max at IZT = 75 mA; determines output voltage variation under load current changes. |
| Max Reverse Current (IR) | 1.0 µA at VR = 10.8 V; ensures minimal leakage in high-impedance bias circuits. |
| Surge Current (IZSM) | 6.3 A peak (8.3 ms half-sine); supports transient overvoltage clamping without failure. |
| Operating Temp Range | –65 °C to +150 °C; suitable for automotive under-hood and industrial control environments. |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by band; leads are RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased reference terminal | Connected to lower-potential node; forms regulated reference when cathode is biased positive. |
| Cathode | Zener breakdown terminal | Banded end; must be held at higher potential than anode to enter regulation mode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 5 W Zener | Industry-standard reliability and interchangeability in legacy and new designs. |
| Moisture Sensitivity Level 1 | No dry pack required; simplifies handling and eliminates bake-out before assembly. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Robust handling during manual and automated assembly without special precautions. |
| RoHS-compliant (e3 suffix) | Meets EU Directive 2011/65/EU; tin-lead-free plating compatible with Pb-free reflow. |
| Tape-and-reel packaging (TR8) | Standard EIA-296 format for automated pick-and-place; 8 mm carrier tape, 1000 pcs/reel. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Biasing |
|---|---|
Use Scenario: Provides precise 15 V reference for optocoupler-based feedback in isolated AC-DC adapters. IC Role / Device Role / Timing Role: Zener reference element in TL431-like shunt regulator configuration. Use Value: Maintains ±10% output regulation across line/load transients due to low 2.5 Ω dynamic impedance and 6.3 A surge rating. |
Use Scenario: Supplies stable bias voltage to analog pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Voltage reference source for ratiometric sensor excitation. Use Value: Delivers consistent 15 V across –40 °C to +85 °C ambient thanks to wide –65 °C to +150 °C operating range and low tempco. |
| Overvoltage Protection Clamp | DC-DC Converter Reference |
Use Scenario: Clamps 24 V rail surges in PLC I/O modules during inductive load switching. IC Role / Device Role / Timing Role: Transient voltage suppressor in parallel with load. Use Value: Absorbs 6.3 A peak surge (8.3 ms) without degradation, protecting downstream logic and ADCs. |
Use Scenario: Sets output voltage in non-isolated buck converter using external resistor divider. IC Role / Device Role / Timing Role: Precision reference for error amplifier feedback network. Use Value: Enables accurate 15 V output with minimal drift under 75 mA load due to tight 2.5 Ω ZZ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352B | Same 15 V nominal VZ, but ±5% tolerance (B suffix) and 75 mA IZT; no e3/RoHS marking. | Used where tighter initial accuracy is required and RoHS compliance is not mandated. | Select 1N5352B if ±5% tolerance is needed and lead-free plating is unnecessary. |
| MMBZ5245BS-7-F | Surface-mount SOD-123 package, 15 V, ±5%, 200 mW; not a direct power replacement. | Only suitable for low-power signal-level references, not 5 W regulation or surge clamping. | Choose MMBZ5245BS-7-F only for space-constrained PCBs with sub-100 mA loads and no surge stress. |
Compared with 1N5352B and MMBZ5245BS-7-F, the 1N5352AE3/TR8 uniquely combines 5 W power handling, ±10% tolerance, RoHS compliance, and axial-leaded tape-and-reel delivery - making it optimal for industrial power supplies requiring robust, through-hole, compliant components.
Availability
1N5352AE3/TR8 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and overvoltage protection circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant procurement.
Supply support for 1N5352AE3/TR8 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 for ruggedized voltage regulation in harsh-environment power systems, emphasizing thermal stability, surge resilience, and JEDEC-standard interchangeability across military and commercial applications.
FAQ
What is the Zener voltage tolerance of the 1N5352AE3/TR8?
The 1N5352AE3/TR8 has a ±10% Zener voltage tolerance, indicated by the "A" suffix in its part number. This means its actual regulation voltage falls between 13.5 V and 16.5 V at 75 mA test current and 25 °C lead temperature. This tolerance is wider than the ±5% offered by the "B" suffix variant but remains suitable for non-critical reference and clamping roles where cost and availability are prioritized.
Does the 1N5352AE3/TR8 require dry packing before PCB assembly?
No, the 1N5352AE3/TR8 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it does not absorb sufficient moisture during storage to require dry packing or baking prior to reflow soldering. This simplifies manufacturing logistics and reduces process risk compared to higher-MSL components.
What is the maximum continuous current the 1N5352AE3/TR8 can handle at 70 °C ambient?
At 70 °C ambient on an FR4 board (1 oz Cu, 4 mm² pads), the 1N5352AE3/TR8's power derating reduces its usable dissipation to approximately 2.9 W. Using P = VZ × IZ, the corresponding max continuous current is ~193 mA - assuming full 15 V regulation and adequate copper area. Actual current must be validated against thermal resistance (85 °C/W) and layout-specific cooling.
Is the 1N5352AE3/TR8 suitable for surge protection in 24 V automotive systems?
Yes, the 1N5352AE3/TR8 supports 6.3 A peak surge current for 8.3 ms half-sine wave, making it viable for clamping load-dump transients in 24 V systems - provided external series impedance limits energy and duty cycle remains non-repetitive. Its –65 °C to +150 °C rating also meets automotive under-hood temperature requirements.
How does the "e3" and "TR8" suffix affect the 1N5352AE3/TR8?
The "e3" suffix confirms RoHS-compliant matte-tin lead plating, while "TR8" indicates EIA-296 standard tape-and-reel packaging: 8 mm carrier tape, 1000 units per reel. Together, they define a fully compliant, machine-ready version of the 1N5352AE3/TR8 optimized for automated SMT lines and environmental regulatory compliance.
1N5352AE3/TR8 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):
- 15 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10.8 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
1N5352AE3/TR8 FAQ
1.How can I place an order for 1N5352AE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5352AE3/TR8 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 1N5352AE3/TR8 reliable?
The price and inventory of 1N5352AE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5352AE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5352AE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5352AE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5352AE3/TR8?
1N5352AE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5352AE3/TR8 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 1N5352AE3/TR8?
For technical support, including 1N5352AE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5352AE3/TR8 requirements.
6.How does Aetrix verify that 1N5352AE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5352AE3/TR8 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 1N5352AE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5352AE3/TR8?
All 1N5352AE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5352AE3/TR8, 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 1N5352AE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5352AE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5352AE3/TR8 Tags
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