Microchip Technology 1N5352AE3/TR13
- Part No.:
- 1N5352AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5352AE3/TR13.pdf
- Description:
- DIODE ZENER 15V 5W T18
- Quantity:
- Payment:

- Shipping:

Inventory:8,979
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Product details
Overview
1N5352AE3/TR13 from Microsemi is a 15 V, ±10% tolerance, 5 W axial-leaded silicon Zener diode optimized for voltage regulation in power supply reference and overvoltage protection circuits. It delivers stable regulation at 75 mA test current (IZT), with 2.5 Ω dynamic impedance (ZZ), 1.0 μA reverse leakage at 10.8 V (VR), and operates across –65°C to +150°C.
For engineers reviewing the 1N5352AE3/TR13 datasheet, 1N5352AE3/TR13 pinout, 1N5352AE3/TR13 application, or 1N5352AE3/TR13 equivalent, key selection criteria include its ±10% tolerance (A 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 Zener operates in reverse breakdown mode with cathode-banded polarity, requiring the banded end to be held positive relative to the anode. Its regulation performance is specified at TL = 25°C with 40 ms DC current application, and voltage regulation (ΔVZ) is defined as the difference between measurements at 10% and 50% of IZM.
The device exhibits low dynamic impedance (2.5 Ω) at 75 mA IZT and maintains tight voltage stability under surge conditions-rated for 6.3 A non-recurrent half-sine surge (IZSM, 8.3 ms). Its 25 °C/W junction-to-lead thermal resistance enables high steady-state current (6.3 A) when adequately heat sunk at 3/8″ lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±10% - nominal regulation point with 1.5 V total tolerance band (13.5–16.5 V) at 75 mA |
| Power Dissipation | 5.0 W at TL < 25°C - supports continuous operation up to 6.3 A IZM with proper heatsinking |
| Dynamic Impedance (ZZ) | 2.5 Ω at IZT = 75 mA - ensures minimal output voltage shift under load current variation |
| Reverse Leakage (IR) | 1.0 μA max at VR = 10.8 V - guarantees low standby power loss in reference circuits |
| Thermal Resistance | 25 °C/W junction-to-lead (3/8″ lead length) - enables predictable thermal design without PCB copper area dependency |
| Surge Current (IZSM) | 6.3 A peak (8.3 ms half-sine) - withstands transient overvoltage events in industrial power rails |
| Operating Temperature | –65°C to +150°C - qualified for automotive under-hood and military-grade environmental stress |
Pinout & Package
Package: Axial-leaded T-18 plastic case (Void-free UL94V-0 epoxy), cathode indicated by color band. Leads are RoHS-compliant matte-tin plated per MIL-STD-750 Method 2026. Weight: 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to system ground or lower-potential rail; defines reverse-bias orientation |
| Cathode (banded end) | Regulated output node | Held at stable 15 V relative to anode; supplies reference voltage to error amplifiers or clamps |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures standardized mechanical dimensions and electrical behavior across global supply chain |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints during SMT assembly prep |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-protected workstations |
| RoHS-compliant e3 marking | Confirms lead-free termination and compliance with EU Directive 2011/65/EU Annex II |
| Tape-and-reel TR13 packaging | Enables automated pick-and-place placement with standard EIA-296 carrier tape specifications |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates feedback voltage in isolated flyback converter secondary-side TL431 replacement circuits. IC Role / Device Role / Timing Role: Zener reference element providing stable 15 V threshold to optocoupler input. Use Value: Maintains ±10% output regulation accuracy across line/load transients and temperature extremes (–65°C to +150°C). |
Use Scenario: Clamps transient spikes on 12 V automotive battery rail during load dump events. IC Role / Device Role / Timing Role: Shunt protection device diverting surge current above 15 V to ground. Use Value: Withstands 6.3 A 8.3 ms surges without degradation, preserving downstream DC-DC converters. |
| Industrial Sensor Reference | Programmable Logic Controller Input Conditioning |
Use Scenario: Provides excitation voltage reference for 4–20 mA current-loop pressure transducers. IC Role / Device Role / Timing Role: Precision voltage source stabilizing bridge excitation in analog front-end circuitry. Use Value: Delivers 15 V ±10% with only 0.25 V regulation deviation (ΔVZ) across operating current range. |
Use Scenario: Level-shifts and limits field input signals to PLC digital input modules rated for 24 V logic. IC Role / Device Role / Timing Role: Input clamp protecting Schmitt-trigger inputs from >30 V transients. Use Value: Low 2.5 Ω dynamic impedance prevents signal distortion during fast-rising EMI events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352B | Same 15 V nominal, ±5% tolerance (vs. ±10% for 1N5352AE3/TR13); identical package and thermal specs | Higher precision required where tighter regulation band (±0.75 V) is critical for feedback loop stability | Select 1N5352B when reference accuracy outweighs cost sensitivity; same footprint and thermal design apply |
| MMBZ5245BS-7-F | Surface-mount SOD-123 package; 15 V ±5%, 0.5 W rating (vs. 5 W axial); 30 Ω ZZ at 20 mA | Space-constrained PCBs where board area is premium and power dissipation ≤0.5 W suffices | Choose MMBZ5245BS-7-F only for low-power signal-level clamping-not for primary power rail regulation |
Compared with 1N5352B and MMBZ5245BS-7-F, the 1N5352AE3/TR13 uniquely balances high-power capability (5 W), RoHS compliance, tape-and-reel automation support, and cost-effective axial mounting-making it optimal for industrial power supply and ruggedized clamp designs where thermal margin and manufacturability are prioritized over ultra-tight tolerance.
Availability
1N5352AE3/TR13 is available at Aetrix Electronics and suitable for switching power supply feedback, overvoltage protection clamp, and industrial sensor reference applications requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant procurement.
Supply support for 1N5352AE3/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-environment power systems-emphasizing thermal resilience, surge survivability, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5352AE3/TR13?
The 1N5352AE3/TR13 has a ±10% Zener voltage tolerance, confirmed by the "A" suffix per Microsemi's documentation. This means its regulated voltage falls within 13.5 V to 16.5 V at 75 mA test current (IZT), making it suitable for applications where moderate precision is acceptable alongside high power handling.
Does the 1N5352AE3/TR13 require dry packing before PCB assembly?
No, the 1N5352AE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it is not hygroscopic and requires no dry pack or floor-life controls prior to soldering-reducing handling overhead and enabling direct use from sealed TR13 tape reels.
What is the maximum surge current rating for the 1N5352AE3/TR13?
The 1N5352AE3/TR13 is rated for 6.3 A peak non-recurrent surge current (IZSM) under an 8.3 ms half-sine waveform, as specified in Microsemi's datasheet. This enables reliable transient suppression in automotive and industrial power rails without derating or parallel devices.
How does the thermal resistance of the 1N5352AE3/TR13 affect PCB layout?
The 1N5352AE3/TR13 has a junction-to-lead thermal resistance of 25 °C/W at 10 mm lead length, decoupling thermal performance from PCB copper area. Unlike surface-mount Zeners, its cooling relies on lead conduction-not board traces-so minimal copper pour is needed, simplifying layout for high-reliability designs.
Is the 1N5352AE3/TR13 compatible with lead-free reflow processes?
Yes, the 1N5352AE3/TR13 features RoHS-compliant matte-tin plating qualified for soldering at 260 °C for 10 seconds, fully supporting lead-free reflow profiles. Its UL94V-0 epoxy body remains stable under JEDEC-standard thermal cycling, ensuring interconnect integrity.
1N5352AE3/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):
- 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/TR13 FAQ
1.How can I place an order for 1N5352AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5352AE3/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 1N5352AE3/TR13 reliable?
The price and inventory of 1N5352AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5352AE3/TR13 is usually 5 days.
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Once your 1N5352AE3/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 1N5352AE3/TR13?
For technical support, including 1N5352AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5352AE3/TR13 requirements.
6.How does Aetrix verify that 1N5352AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5352AE3/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 1N5352AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5352AE3/TR13?
All 1N5352AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5352AE3/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 1N5352AE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5352AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5352AE3/TR13 Tags

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