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Microchip Technology 1N5359AE3/TR13
- Part No.:
- 1N5359AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5359AE3/TR13.pdf
- Description:
- DIODE ZENER 24V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,560
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Product details
Overview
1N5359AE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 24 V, ±10% tolerance (A suffix), 50 mA test current (IZT), 3.5 Ω dynamic impedance (ZZ), and maximum reverse current of 0.5 μA at 19.4 V (VR). It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5359AE3/TR13 datasheet, 1N5359AE3/TR13 pinout, 1N5359AE3/TR13 application, or 1N5359AE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (100 A), voltage regulation (ΔVZ = 0.55 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown. Its Zener voltage is specified at 24 V ±10% under 50 mA DC test current, with dynamic impedance measured at 1 kHz AC superimposed on IZT. Voltage regulation (ΔVZ) is defined as the difference between voltages measured at 10% and 50% of IZM (100 mA).
Thermal design requires attention to lead temperature (TL): rated 5 W dissipation applies only when TL ≤ 25 °C at 3/8″ (10 mm) from body; derating begins above that point. Mounting on FR4 PCB yields 1.47 W steady-state power at TA = 25 °C with defined copper pad geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±10% - defines stable regulation point across operating current range |
| Test Current (IZT) | 50 mA - DC current at which VZ is measured; sets baseline operating point |
| Dynamic Impedance (ZZ) | 3.5 Ω - low impedance ensures minimal voltage shift under load variation |
| Max Reverse Current (IR) | 0.5 μA @ 19.4 V - confirms sharp knee and low leakage below regulation threshold |
| Max Regulator Current (IZM) | 100 mA - maximum continuous DC current before thermal limit at TL = 25 °C |
| Surge Current (IZSM) | 100 A - peak non-repetitive half-sine (8.3 ms) withstand capability |
| Voltage Regulation (ΔVZ) | 0.55 V - difference between VZ at 10% and 50% of IZM; quantifies regulation linearity |
Pinout & Package
Package: T-18 axial-leaded plastic case (void-free UL94V-0 epoxy), cathode indicated by band; leads are annealed matte-tin plated (RoHS compliant, solderable per MIL-STD-750 Method 2026); weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias operation | Connected to lower-potential side of regulated circuit; forward voltage ≤1.2 V @ 1 A |
| Cathode | Zener output terminal | Banded end; connected to higher-potential side; maintains 24 V reference relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with industry-standard 1N53xxB series mechanical and electrical definitions |
| Moisture Sensitivity Level 1 | No dry pack required; safe for standard SMT reflow and manual assembly |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - no special handling needed |
| High surge current rating | 100 A peak (8.3 ms half-sine) supports transient overvoltage suppression |
| Low thermal resistance | 25 °C/W junction-to-lead enables 5 W operation with minimal heatsinking |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener reference providing precise 24 V threshold to error amplifier input. Use Value: Maintains ±10% output regulation despite line/load transients due to low ΔVZ (0.55 V) and stable VZ over temperature. | Use Scenario: Providing excitation voltage and reference for 4–20 mA current-loop pressure sensors. IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing stable 24 V rail independent of sensor current draw. Use Value: Enables accurate sensor scaling with <0.5 μA leakage at 19.4 V, minimizing reference error contribution. |
| Overvoltage Protection Clamp | Programmable Logic Controller Input Conditioning |
Use Scenario: Clamping induced surges on 24 V DC control lines in factory automation systems. IC Role / Device Role / Timing Role: Shunt protector diverting transient energy above 24 V to ground during ESD or inductive kick events. Use Value: Withstands 100 A surge (8.3 ms) without degradation, preserving downstream logic integrity. | Use Scenario: Level-shifting and noise filtering for 24 V digital inputs in PLC backplanes. IC Role / Device Role / Timing Role: Voltage limiter ensuring input stays within 24 V ±10% window for Schmitt-trigger interface ICs. Use Value: Low ZZ (3.5 Ω) prevents overshoot during fast edge transitions while maintaining tight regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5359B | Same 24 V nominal VZ but ±5% tolerance (B suffix) vs. ±10% (A suffix); identical IZT, ZZ, IZM, and package | Higher precision regulation required where tighter voltage stability is critical | Select 1N5359B when system-level tolerance budget demands <±5% reference accuracy |
| MMBZ5242B | Surface-mount SOT-23 package; 24 V ±5%, 20 mA IZT, 30 Ω ZZ, 0.5 μA IR @ 19.4 V; max power 0.5 W | Space-constrained PCB layouts requiring SMT assembly instead of axial through-hole | Choose MMBZ5242B only for low-power (<0.5 W), high-density designs - not a drop-in replacement |
Compared with 1N5359AE3/TR13, the 1N5359B offers tighter voltage tolerance without changing thermal or surge performance, while the MMBZ5242B trades 10× lower power rating and different package for SMT compatibility - neither is pin-compatible, and both require layout or thermal redesign.
Availability
1N5359AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, overvoltage clamping, and programmable controller input circuits requiring stable component supply and long-term obsolescence management.
Supply support for 1N5359AE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xx series was designed specifically for robust, high-power voltage regulation in harsh environments - emphasizing wide temperature range (–65 °C to +150 °C), surge resilience, and JEDEC-standardized mechanical form factor.
FAQ
What is the Zener voltage tolerance for 1N5359AE3/TR13?
The 1N5359AE3/TR13 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its actual regulation voltage falls between 21.6 V and 26.4 V at 50 mA test current and 25 °C lead temperature. The "e3" suffix confirms RoHS compliance, and "TR13" denotes tape-and-reel packaging per EIA-296 standard.
What is the maximum continuous current rating for 1N5359AE3/TR13?
The maximum continuous Zener current (IZM) for 1N5359AE3/TR13 is 100 mA when lead temperature (TL) is maintained at or below 25 °C - achieved using ≥10 mm lead length from the body. At ambient temperature on FR4 board (1 oz Cu, 4 mm² pads), steady-state power drops to 1.47 W, limiting usable current to approximately 61 mA at 24 V.
Does 1N5359AE3/TR13 require moisture-sensitive handling?
No, the 1N5359AE3/TR13 has IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1, meaning it does not absorb significant moisture during storage and requires no dry pack or baking prior to soldering. It is compatible with standard wave, selective, and hand-soldering processes at up to 260 °C for 10 seconds.
How is polarity marked on 1N5359AE3/TR13?
The cathode of 1N5359AE3/TR13 is marked by a distinct color band on the plastic T-18 body. During operation, the banded (cathode) end must be held at a higher potential than the anode to maintain reverse-bias Zener conduction. Forward voltage is guaranteed ≤1.2 V at 1.0 A, confirming standard silicon diode behavior in forward conduction.
What is the thermal resistance specification for 1N5359AE3/TR13?
The 1N5359AE3/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W when measured at 3/8″ (10 mm) lead length from the body. When mounted on FR4 PCB (1 oz Cu, 4 mm² copper pads, 1 mm track width, 25 mm length), junction-to-ambient resistance rises to 85 °C/W - directly impacting allowable power dissipation at elevated ambient temperatures.
1N5359AE3/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):
- 24 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 17.3 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
1N5359AE3/TR13 FAQ
1.How can I place an order for 1N5359AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5359AE3/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 1N5359AE3/TR13 reliable?
The price and inventory of 1N5359AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5359AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5359AE3/TR13?
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1N5359AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5359AE3/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 1N5359AE3/TR13?
For technical support, including 1N5359AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5359AE3/TR13 requirements.
6.How does Aetrix verify that 1N5359AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5359AE3/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 1N5359AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5359AE3/TR13?
All 1N5359AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5359AE3/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 1N5359AE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5359AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5359AE3/TR13 Tags
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