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Microchip Technology 1N5353CE3/TR12
- Part No.:
- 1N5353CE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5353CE3/TR12.pdf
- Description:
- DIODE ZENER 16V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,849
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Product details
Overview
1N5353CE3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 16 V, ±2% tolerance (C suffix), 75 mA test current (IZT), 2.5 Ω maximum dynamic impedance (ZZ), and 75 mA maximum Zener current (IZM) at 25°C lead temperature. 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 1N5353CE3/TR12 datasheet, 1N5353CE3/TR12 pinout, 1N5353CE3/TR12 application, or 1N5353CE3/TR12 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (6.0 A), voltage regulation (ΔVZ = 0.30 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 mode. Its Zener voltage is specified at 16.0 V ±2% under 75 mA DC test current (IZT), with low dynamic impedance (≤2.5 Ω) ensuring stable regulation across load variations.
It exhibits minimal voltage drift versus current-ΔVZ = 0.30 V between 10% and 50% of IZM-and withstands non-repetitive 8.3 ms half-sine surge currents up to 6.0 A. The T-18 package provides 25 °C/W junction-to-lead thermal resistance with 3/8″ (10 mm) lead length from body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.0 V ±2% - precise regulation point for feedback networks requiring tight voltage reference stability |
| Test Current (IZT) | 75 mA - defined operating point where VZ and ZZ are guaranteed; sets minimum bias requirement |
| Dynamic Impedance (ZZ) | 2.5 Ω max - low AC impedance ensures minimal output voltage variation under changing load current |
| Max Zener Current (IZM) | 75 mA at TL = 25°C - maximum continuous DC current before thermal derating begins |
| Surge Current (IZSM) | 6.0 A (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Voltage Regulation (ΔVZ) | 0.30 V - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables thermal design with standard axial-lead mounting and heat sinking |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-204AL. Void-free UL94V-0 epoxy body; cathode indicated by band; leads plated with RoHS-compliant matte tin per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to circuit ground or lower potential node; reverse-biased operation requires cathode at higher potential |
| Cathode | Zener breakdown terminal | Banded end; connected to regulated voltage node; carries full Zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without external trimming in feedback circuits |
| RoHS-compliant e3 suffix | Meets environmental compliance requirements without sacrificing electrical performance or reliability |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints for SMT assembly compatibility |
| Nonsensitive to ESD per MIL-STD-750 Method 1020 | Reduces handling precautions and eliminates need for special ESD controls in production |
| Steady-state power: 5 W at TL < 25°C | Supports robust operation in high-current linear regulator or clamp applications with adequate heatsinking |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Precision voltage reference establishing error amplifier setpoint. Use Value: ±2% tolerance ensures output regulation within ±1% over line/load/temperature, reducing need for post-production calibration. | Use Scenario: Provides stable excitation voltage for bridge-based pressure or temperature transducers in PLC analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-noise reference source for ratiometric sensor signal conditioning. Use Value: 2.5 Ω dynamic impedance minimizes reference voltage shift under varying sensor bridge current, improving measurement repeatability. |
| Overvoltage Clamp Protection | Programmable Voltage Monitor Threshold |
Use Scenario: Placed across MOSFET gate-source or IC supply rail to limit transient overvoltage during switching events. IC Role / Device Role / Timing Role: Fast-acting shunt protection element absorbing surge energy. Use Value: 6.0 A 8.3 ms surge rating allows reliable clamping of IEC 61000-4-5 level 4 surges without degradation. | Use Scenario: Sets threshold for comparator-based brown-out detection or battery undervoltage lockout in embedded systems. IC Role / Device Role / Timing Role: Stable, temperature-compensated trip point generator. Use Value: ΔVZ = 0.30 V ensures consistent trigger point across operating current range, minimizing false trips during supply ripple. |
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 |
|---|---|---|---|
| 1N5353B | Same 16 V nominal VZ but ±5% tolerance (B suffix); identical package, IZT = 75 mA, ZZ = 2.5 Ω | Lower accuracy suitable for non-critical biasing or coarse regulation where cost is prioritized over precision | Select when ±5% tolerance meets system spec and RoHS compliance is not required |
| MMSZ5245B-TP | Surface-mount SOD-123 package; 16 V ±5%; 20 mA IZT; 17 Ω ZZ; 500 mW power rating | Not interchangeable due to 5× lower power rating and different thermal path; limited to low-power signal-level clamping | Choose only for space-constrained PCBs where 5 W dissipation is unnecessary and thermal design permits SMT mounting |
Compared with 1N5353B and MMSZ5245B-TP, the 1N5353CE3/TR12 delivers tighter voltage accuracy and higher surge capability in an axial-leaded through-hole package ideal for industrial power supplies requiring long-term stability and ruggedness.
Availability
1N5353CE3/TR12 is available at Aetrix Electronics and suitable for switch-mode power supply feedback, industrial sensor reference, and overvoltage clamp protection requiring stable component supply, extended temperature operation, and RoHS compliance.
Supply support for 1N5353CE3/TR12 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial applications.
The 1N53xx series was developed for high-stability, high-power Zener regulation in harsh environments, emphasizing wide temperature range (−65°C to +150°C), low thermal resistance, and MIL-qualified screening options.
FAQ
What is the Zener voltage tolerance of the 1N5353CE3/TR12?
The 1N5353CE3/TR12 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its nominal 16.0 V regulation voltage falls within 15.68 V to 16.32 V at 75 mA test current and 25°C lead temperature, enabling high-accuracy voltage references in feedback circuits.
Does the 1N5353CE3/TR12 require dry packing for moisture sensitivity?
No, the 1N5353CE3/TR12 has IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it is not moisture-sensitive and does not require dry packing or floor-life controls prior to soldering-simplifying handling and storage logistics for production use.
What is the maximum surge current rating for the 1N5353CE3/TR12?
The 1N5353CE3/TR12 is rated for a non-repetitive peak surge current (IZSM) of 6.0 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating supports robust overvoltage clamping in power supply and motor drive applications subject to transient surges.
How does the thermal resistance of the 1N5353CE3/TR12 affect its power handling?
The 1N5353CE3/TR12 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W at 3/8″ (10 mm) lead length. This allows it to safely dissipate its full 5 W rating when leads are adequately heat-sunk; without heat sinking, power must be derated per Figure 1 in the datasheet to avoid exceeding 150°C junction temperature.
Is the 1N5353CE3/TR12 compatible with lead-free reflow soldering processes?
Yes, the 1N5353CE3/TR12 features RoHS-compliant matte-tin plating qualified for soldering at 260°C for 10 seconds maximum, making it compatible with standard lead-free reflow profiles while maintaining solderability and intermetallic integrity per MIL-STD-750 Method 2026.
1N5353CE3/TR12 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):
- 16 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 11.5 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
1N5353CE3/TR12 FAQ
1.How can I place an order for 1N5353CE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5353CE3/TR12 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 1N5353CE3/TR12 reliable?
The price and inventory of 1N5353CE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5353CE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5353CE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5353CE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5353CE3/TR12?
1N5353CE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5353CE3/TR12 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 1N5353CE3/TR12?
For technical support, including 1N5353CE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5353CE3/TR12 requirements.
6.How does Aetrix verify that 1N5353CE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5353CE3/TR12 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 1N5353CE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5353CE3/TR12?
All 1N5353CE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5353CE3/TR12, 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 1N5353CE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5353CE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5353CE3/TR12 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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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAZ12-13-F
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