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Microchip Technology 1N5355CE3/TR13
- Part No.:
- 1N5355CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5355CE3/TR13.pdf
- Description:
- DIODE ZENER 18V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:7,007
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Product details
Overview
1N5355CE3/TR13 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 18 V, ±2% tolerance (C suffix), 65 mA test current (IZT), 2.5 Ω maximum dynamic impedance (ZZ), and 75 mA maximum regulator current (IZM). 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 1N5355CE3/TR13 datasheet, 1N5355CE3/TR13 pinout, 1N5355CE3/TR13 application, or 1N5355CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (75 A), reverse leakage at VR = 14.4 V, and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a two-terminal voltage reference operating in reverse breakdown. Its regulation performance is defined at 65 mA test current with 2.5 Ω dynamic impedance, and it maintains stable output across 10–50% of IZM (7.5–37.5 mA) with ≤0.40 V voltage regulation (ΔVZ).
The 1N5355CE3/TR13 uses a void-free thermosetting epoxy T-18 package rated for 5 W at TL < 25°C (3/8″ lead length), with thermal resistance of 25 °C/W junction-to-lead and 85 °C/W junction-to-ambient on FR4. Cathode polarity is marked by a band; operation requires cathode positive relative to anode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18 V ±2% - precise reference for feedback networks requiring tight regulation |
| Test Current (IZT) | 65 mA - defines nominal operating point where VZ and ZZ are specified |
| Dynamic Impedance (ZZ) | 2.5 Ω max - low AC impedance ensures minimal voltage shift under load transients |
| Max Regulator Current (IZM) | 75 mA - maximum DC current at which 5 W dissipation is maintained with adequate heatsinking |
| Voltage Regulation (ΔVZ) | 0.40 V max - difference between VZ measured at 10% and 50% of IZM, indicating regulation linearity |
| Surge Current (IZSM) | 75 A - peak non-repetitive half-sine (8.3 ms) capability for transient suppression |
| Reverse Leakage (IR) | 0.5 μA max @ VR = 14.4 V - ensures minimal quiescent current in high-impedance bias networks |
Pinout & Package
The 1N5355CE3/TR13 is a two-terminal axial-leaded diode in JEDEC T-18 package (plastic encapsulated, void-free epoxy, UL94V-0 rated), with cathode identified by a colored band. Leads are annealed matte-tin plated (RoHS compliant) and solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; reverse-biased operation requires this terminal negative relative to cathode |
| Cathode | Regulated output node | Banded end; connected to feedback point or voltage rail; supplies stable 18 V when reverse-biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables use in precision references without post-calibration in industrial power supplies |
| Moisture sensitivity Level 1 (IPC/JEDEC J-STD-020B) | Eliminates dry-pack requirement and bake-out prior to assembly, reducing manufacturing cost |
| 25 °C/W junction-to-lead thermal resistance | Supports full 5 W dissipation with minimal heatsinking when leads are trimmed to 10 mm from body |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and eliminates need for ESD-safe workstations during manual assembly |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU and China RoHS II without lead or hazardous substance exemptions |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Excitation |
|---|---|
Use Scenario: Used in TL431-based or discrete op-amp feedback circuits to regulate +18 V output rails in 50–200 W AC/DC converters. IC Role / Device Role / Timing Role: Zener reference element providing stable 18 V threshold for error amplifier comparison. Use Value: ±2% tolerance ensures output accuracy within ±0.36 V over temperature, meeting EN 62368-1 ripple and regulation requirements. | Use Scenario: Supplies excitation voltage to bridge-based pressure transducers in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Precision voltage source for ratiometric sensor biasing, referenced to ADC VREF. Use Value: Low ΔVZ (0.40 V) and 2.5 Ω ZZ minimize excitation drift under varying load, improving measurement repeatability to ±0.1% FS. |
| Overvoltage Clamp Protection | Programmable Reference Generator |
Use Scenario: Placed across MOSFET gate-source terminals in motor drive inverters to clamp transient spikes during IGBT switching. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting VGS to 18 V ±2%, preventing gate oxide rupture. Use Value: 75 A surge rating handles repetitive 600 V/100 ns spikes without degradation, extending MOSFET lifetime per IEC 61800-3. | Use Scenario: Paired with DAC outputs in programmable power supplies to generate adjustable 18 V reference points for digital control loops. IC Role / Device Role / Timing Role: Stable anchor point for DAC output scaling and calibration offset correction. Use Value: 0.5 μA IR at 14.4 V minimizes loading error on high-impedance DAC buffers, preserving 16-bit monotonicity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5355B | Same 18 V nominal VZ but ±5% tolerance (B suffix); otherwise identical electrical specs and package | Acceptable where tighter tolerance not required; lower cost for non-critical biasing | Select 1N5355B when system-level calibration compensates for initial VZ variation |
| MMSZ5245E | Surface-mount SOD-123 package; 18 V ±5%; 500 mW rating; 15 Ω ZZ; 20 mA IZM | Not suitable for 5 W continuous dissipation; limited to low-power signal conditioning | Choose MMSZ5245E only for space-constrained PCBs where power < 0.5 W and thermal management is passive |
Compared with 1N5355B and MMSZ5245E, the 1N5355CE3/TR13 delivers superior thermal performance (25 °C/W vs. >200 °C/W for SOD-123), higher surge robustness (75 A vs. ~1 A), and tighter initial accuracy-making it optimal for industrial-grade 5 W reference and clamping roles where reliability under thermal stress is critical.
Availability
1N5355CE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, motor drive protection circuits, and programmable reference generators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 1N5355CE3/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, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N53xxB series was designed specifically for ruggedized 5 W voltage regulation in harsh-environment power systems, emphasizing thermal stability, surge resilience, and moisture-insensitive packaging for unattended operation.
FAQ
What is the Zener voltage tolerance of the 1N5355CE3/TR13?
The 1N5355CE3/TR13 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in its part number. This means its actual regulation voltage falls between 17.64 V and 18.36 V at 65 mA test current and 25°C lead temperature. This tight tolerance supports precision feedback and reference applications without external trimming, unlike the ±5% 1N5355B variant.
Can the 1N5355CE3/TR13 be used without a heatsink?
Yes-the 1N5355CE3/TR13 can dissipate its full 5 W rating without an external heatsink when leads are trimmed to 10 mm (3/8″) from the body, leveraging its 25 °C/W junction-to-lead thermal resistance. However, at ambient temperatures above 25°C or with PCB-mounted operation (85 °C/W junction-to-ambient), derating is required per Figure 1 in the datasheet to avoid exceeding 150°C junction temperature.
What does the "e3" and "TR13" suffix mean in 1N5355CE3/TR13?
The "e3" suffix indicates RoHS-compliant matte-tin plating per JEDEC standards, while "TR13" specifies tape-and-reel packaging per EIA-296 with 13-inch reels. The full 1N5355CE3/TR13 designation confirms compliance with environmental regulations and automated assembly compatibility-critical for high-volume industrial manufacturing lines using pick-and-place equipment.
How does the 1N5355CE3/TR13 perform under surge conditions?
The 1N5355CE3/TR13 is rated for 75 A peak non-repetitive surge current (IZSM) in an 8.3 ms half-sine waveform, verified per Microsemi's test methodology. This enables reliable clamping of switching transients in motor drives and power converters. Its robust T-18 epoxy package and low thermal resistance prevent thermal runaway during such events, distinguishing it from lower-power Zeners like the MMSZ5245E.
Is the 1N5355CE3/TR13 suitable for automotive applications?
The 1N5355CE3/TR13 operates across –65°C to +150°C and meets MIL-PRF-19500 screening levels when ordered with MQ/MX/MV prefixes-but the base 1N5355CE3/TR13 is not AEC-Q200 qualified. For automotive use, it may serve in under-hood auxiliary circuits if validated per vehicle-specific stress testing; however, Aetrix recommends certified alternatives like the 1N5355B-MV for mission-critical ECUs.
1N5355CE3/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:
- ±2%
- 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
1N5355CE3/TR13 FAQ
1.How can I place an order for 1N5355CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5355CE3/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 1N5355CE3/TR13 reliable?
The price and inventory of 1N5355CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5355CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5355CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5355CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5355CE3/TR13?
1N5355CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5355CE3/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 1N5355CE3/TR13?
For technical support, including 1N5355CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5355CE3/TR13 requirements.
6.How does Aetrix verify that 1N5355CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5355CE3/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 1N5355CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5355CE3/TR13?
All 1N5355CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5355CE3/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 1N5355CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5355CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5355CE3/TR13 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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