My Inquiry
My Account
Microchip Technology 1N5355AE3/TR13
- Part No.:
- 1N5355AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5355AE3/TR13.pdf
- Description:
- DIODE ZENER 18V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,266
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5355AE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 18 V, ±10% tolerance (A suffix), 65 mA maximum Zener test current (IZT), 2.5 Ω maximum dynamic impedance (ZZ), and 75 mA maximum Zener current (IZM) at 25 °C. It operates across –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5355AE3/TR13 datasheet, 1N5355AE3/TR13 pinout, 1N5355AE3/TR13 application, or 1N5355AE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (75 A), voltage regulation (ΔVZ = 0.40 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-bias breakdown mode. Its 18 V nominal Zener voltage is specified at 65 mA test current with ±10% tolerance, and it maintains stable regulation across 10–50% of IZM (7.5–37.5 mA) with ΔVZ ≤ 0.40 V.
The 1N5355AE3/TR13 features low thermal resistance (25 °C/W junction-to-lead at 10 mm lead length), enabling high steady-state power dissipation (5 W at TL < 25 °C) when adequately heat-sunk. Its moisture sensitivity level is IPC/JEDEC Level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18 V ±10% - defines regulated output voltage under 65 mA test current; usable range 16.2–19.8 V |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires minimum 10 mm lead length from body for full rating |
| Dynamic Impedance (ZZ) | 2.5 Ω max - ensures minimal voltage shift under varying load current near IZT |
| Max Reverse Current (IR) | 0.5 μA @ 14.4 V - guarantees low leakage below knee voltage, critical for standby power integrity |
| Surge Current (IZSM) | 75 A (8.3 ms half-sine) - withstands transient overvoltage events without degradation |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables direct thermal path to PCB copper or heatsink via leads |
| Voltage Regulation (ΔVZ) | 0.40 V - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
Pinout & Package
Package: Axial-leaded T-18 plastic case (void-free UL94V-0 epoxy), cathode indicated by band; RoHS-compliant matte-tin plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse bias applied to cathode |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to unregulated input; delivers stable 18 V to load when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener series | Ensures standardized electrical behavior and interchangeability across qualified suppliers |
| Moisture Sensitivity Level 1 | No dry pack or baking required before SMT/reflow - reduces manufacturing overhead |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for special ESD handling during assembly and testing |
| High surge current capability (75 A) | Provides robust transient immunity in industrial power rails without external TVS stacking |
| e3 RoHS-compliant plating | Meets global environmental compliance requirements without sacrificing solderability or reliability |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback or forward converter feedback loop. IC Role / Device Role / Timing Role: Zener reference diode providing stable 18 V reference to optocoupler input or TL431 cathode. Use Value: Maintains ±10% output voltage accuracy across line/load/temperature with ΔVZ ≤ 0.40 V and low ZZ (2.5 Ω). |
Use Scenario: Clamps transient spikes on 24 V DC bus in motor drive or PLC I/O module. IC Role / Device Role / Timing Role: Two-terminal shunt protector diverting excess energy to ground above 19.8 V threshold. Use Value: Withstands 75 A surge (8.3 ms) without failure, eliminating need for parallel devices or derating. |
| Programmable Voltage Reference | Industrial Sensor Excitation |
Use Scenario: Sets precise bias point for analog front-end op-amp circuits in data acquisition systems. IC Role / Device Role / Timing Role: Stable 18 V reference source for DAC output buffering or ADC reference scaling. Use Value: Low 0.5 μA leakage at 14.4 V ensures minimal loading error in high-impedance reference networks. |
Use Scenario: Supplies regulated excitation voltage to 4–20 mA current-loop pressure transducers. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant 18 V across sensor bridge despite supply ripple. Use Value: Thermal resistance of 25 °C/W allows direct mounting to chassis for stable long-term drift performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5355B | ±5% tolerance (vs. ±10% for 1N5355AE3/TR13); same VZ, IZT, PD, package | Higher precision required in feedback loops where tighter output regulation is mandated | Select 1N5355B when system-level voltage accuracy demands ≤ ±5% variation over temperature and life |
| 1N5355CE3/TR13 | ±2% tolerance (C suffix); identical RoHS-compliant tape-and-reel packaging and thermal specs | Suitable for metrology-grade references or calibration equipment requiring traceable stability | Choose 1N5355CE3/TR13 only if design validation confirms benefit of ±2% tolerance justifies cost premium |
Compared with 1N5355B and 1N5355CE3/TR13, the 1N5355AE3/TR13 offers optimal cost-performance balance for general-purpose 18 V regulation where ±10% tolerance meets system margin requirements without over-specifying.
Availability
1N5355AE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage clamping circuits, programmable voltage references, and industrial sensor excitation requiring stable component supply with consistent parametric performance and RoHS compliance.
Supply support for 1N5355AE3/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 ruggedized 5 W Zener regulation in harsh-environment power systems, emphasizing thermal robustness, surge resilience, and long-term parametric stability under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N5355AE3/TR13?
The 1N5355AE3/TR13 has a ±10% Zener voltage tolerance, as indicated by the "A" suffix per Microsemi's documentation. This means its actual breakdown voltage falls between 16.2 V and 19.8 V when measured at 65 mA test current and 25 °C lead temperature. The tolerance is fixed by process control and cannot be adjusted in-circuit.
Can the 1N5355AE3/TR13 be used without a heatsink?
Yes - the 1N5355AE3/TR13 can operate at full 5 W power dissipation without an external heatsink when mounted with ≥10 mm lead length from the epoxy body, leveraging its 25 °C/W junction-to-lead thermal resistance. On FR4 PCB with standard copper pads, derating applies: max 1.47 W at 25 °C ambient.
What does the "e3" and "TR13" suffix mean in 1N5355AE3/TR13?
The "e3" suffix denotes RoHS-compliant matte-tin plating per MIL-STD-750 Method 2026; "TR13" indicates tape-and-reel packaging per EIA-296 standard, with 13-inch reels. Both suffixes are integral to the official Microsemi orderable part number and define material compliance and logistics format for the 1N5355AE3/TR13.
How does the 1N5355AE3/TR13 handle surge conditions?
The 1N5355AE3/TR13 is rated for 75 A peak non-recurrent surge current (IZSM) in an 8.3 ms half-sine waveform. This capability is validated per JEDEC standards and enables direct use in 24 V industrial bus clamping without series resistors or additional TVS devices - provided layout minimizes parasitic inductance.
Is the 1N5355AE3/TR13 suitable for precision reference applications?
The 1N5355AE3/TR13 is not intended for high-precision references due to its ±10% tolerance and 0.40 V voltage regulation (ΔVZ). For precision use, consider the 1N5355CE3/TR13 (±2%) or dedicated reference ICs. However, the 1N5355AE3/TR13 remains appropriate for cost-sensitive regulation where system-level tolerances accommodate ±10% variation.
1N5355AE3/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):
- 18 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 13 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
1N5355AE3/TR13 FAQ
1.How can I place an order for 1N5355AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5355AE3/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 1N5355AE3/TR13 reliable?
The price and inventory of 1N5355AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5355AE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5355AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5355AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5355AE3/TR13?
1N5355AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5355AE3/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 1N5355AE3/TR13?
For technical support, including 1N5355AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5355AE3/TR13 requirements.
6.How does Aetrix verify that 1N5355AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5355AE3/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 1N5355AE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5355AE3/TR13?
All 1N5355AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5355AE3/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 1N5355AE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5355AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5355AE3/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
