My Inquiry
My Account
Microchip Technology 1N5351CE3/TR13
- Part No.:
- 1N5351CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5351CE3/TR13.pdf
- Description:
- DIODE ZENER 14V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:5,004
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5351CE3/TR13 from Microsemi is a 14 V, ±2% tolerance, 5 W axial-leaded silicon Zener diode with 100 mA maximum regulator current (IZM), 2.5 Ω dynamic impedance (ZZ), and 0.25 V voltage regulation (ΔVZ) - used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5351CE3/TR13 datasheet, 1N5351CE3/TR13 pinout, 1N5351CE3/TR13 application, or 1N5351CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), surge current rating (6.7 A), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device operates as a two-terminal voltage reference with cathode-banded polarity, requiring reverse-bias operation where the banded end is positive relative to the anode. It delivers stable regulation across 10%–50% of IZM (10–50 mA) with minimal ΔVZ drift and maintains performance from –65 °C to +150 °C.
Its T-18 axial package enables through-hole mounting on FR4 PCBs with 1 oz copper; thermal design must account for 85 °C/W junction-to-ambient resistance under standard board conditions and 25 °C/W when lead length is 10 mm from body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.0 V ±2% at 100 mA test current - ensures tight reference accuracy for feedback sensing in regulated DC-DC converters. |
| Power Dissipation | 5.0 W at 25 °C lead temperature - requires heat sinking beyond 25 °C ambient or lead-length derating per Figure 1. |
| Dynamic Impedance (ZZ) | 2.5 Ω at 100 mA - low AC impedance minimizes output voltage ripple under varying load currents. |
| Voltage Regulation (ΔVZ) | 0.25 V between 10% and 50% of IZM - quantifies stability across operating current range for precision references. |
| Surge Current (IZSM) | 6.7 A peak (8.3 ms half-sine) - supports transient overvoltage clamping without failure. |
| Reverse Leakage (IR) | 1.0 μA max at 11.5 V - ensures negligible standby current in high-impedance bias networks. |
| Thermal Resistance | 25 °C/W junction-to-lead (3/8″ lead length) - defines minimum heatsink requirement for continuous 5 W operation. |
Pinout & Package
T-18 axial-leaded plastic package with cathode indicated by colored band; leads are annealed matte-tin plated per MIL-STD-750 Method 2026, RoHS compliant (e3 suffix), weight 0.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal in reverse bias | Connected to lower-potential node (e.g., ground or return path) during Zener operation. |
| Cathode | Current source terminal in reverse bias | Banded end; connected to higher-potential node (e.g., supply rail or feedback divider top) - polarity critical for regulation. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables tighter feedback loop control vs. ±5% (B) or ±10% (A) variants, reducing output voltage error in precision supplies. |
| JEDEC-registered 1N53xxB series | Guarantees standardized electrical behavior, mechanical dimensions, and test methodology across qualified suppliers. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints - simplifies SMT line handling and storage logistics. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces need for special ESD handling during assembly and testing in industrial environments. |
| RoHS-compliant (e3 suffix) | Meets EU Directive 2011/65/EU and China RoHS II requirements without lead content or exemptions. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback circuits using optocoupler-coupled TL431 replacement. IC Role / Device Role / Timing Role: Precision 14 V reference providing stable setpoint for error amplifier comparison. Use Value: ±2% tolerance ensures <±0.28 V output deviation, improving system compliance with tight DC-DC spec limits. | Use Scenario: Clamps transient surges on 12 V automotive or industrial bus lines exceeding 14 V threshold. IC Role / Device Role / Timing Role: Two-terminal shunt protector diverting excess energy to ground before downstream IC damage. Use Value: 6.7 A surge rating handles ISO 7637-2 Pulse 1/2a transients without degradation. |
| Programmable Voltage Reference | Industrial Sensor Excitation |
Use Scenario: Provides stable excitation voltage for ratiometric bridge sensors (e.g., strain gauges) in data acquisition modules. IC Role / Device Role / Timing Role: Low-drift, low-noise Zener reference replacing higher-cost IC references where 14 V matches sensor full-scale range. Use Value: 0.25 V ΔVZ ensures excitation stability across 10–50 mA load variation, minimizing measurement offset error. | Use Scenario: Supplies constant 14 V bias to analog front-end circuitry in programmable logic controller (PLC) input modules. IC Role / Device Role / Timing Role: Primary voltage reference for ADC reference buffers and op-amp bias networks. Use Value: 2.5 Ω ZZ prevents loading-induced reference droop under dynamic analog signal conditioning loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5351B | Same 14 V nominal VZ, but ±5% tolerance (B suffix) and no e3 RoHS marking | Acceptable where tighter tolerance not required; not suitable for RoHS-mandated designs | Select only if legacy compliance or cost sensitivity outweighs precision and environmental requirements. |
| MMSZ5241ET1G | Surface-mount SOD-123 package, 14 V ±5%, 500 mW rating, 17 Ω ZZ | Limited to low-power applications; unsuitable for 5 W continuous dissipation or surge clamping | Choose only for space-constrained PCBs where power and surge demands are ≤0.5 W and ≤1 A. |
Compared with 1N5351B and MMSZ5241ET1G, the 1N5351CE3/TR13 uniquely combines ±2% tolerance, 5 W power handling, axial through-hole reliability, and RoHS compliance - making it optimal for industrial power supply and protection designs demanding precision and robustness.
Availability
1N5351CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and programmable voltage reference designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5351CE3/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 timing solutions for aerospace, defense, and industrial markets.
The 1N53xxB Zener series was designed for ruggedized voltage regulation in harsh-environment power systems - emphasizing thermal robustness, surge resilience, and JEDEC-standardized interchangeability.
FAQ
What is the Zener voltage tolerance of the 1N5351CE3/TR13?
The 1N5351CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its measured VZ falls within 13.72 V to 14.28 V at 100 mA test current and 25 °C lead temperature - critical for applications requiring tighter regulation than the ±5% 1N5351B variant.
Does the 1N5351CE3/TR13 require dry packing or moisture barrier bags?
No, the 1N5351CE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it is not hygroscopic and does not require dry pack, baking, or floor-life controls before soldering - simplifying inventory handling and reflow processes.
What is the maximum steady-state power dissipation for the 1N5351CE3/TR13 on a standard FR4 PCB?
When mounted on a standard FR4 PCB (1 oz copper, 4 mm² pads, 1 mm track width, 25 mm length), the 1N5351CE3/TR13 is rated for 1.47 W steady-state power at 25 °C ambient - significantly derated from its 5 W lead-temperature rating due to higher junction-to-ambient thermal resistance (85 °C/W).
Can the 1N5351CE3/TR13 be used as a direct replacement for the 1N5351B in existing designs?
The 1N5351CE3/TR13 shares identical electrical characteristics, package (T-18), and pinout with the 1N5351B, differing only in tighter ±2% tolerance and RoHS-compliant plating. It can replace the 1N5351B where enhanced accuracy or environmental compliance is needed - no layout changes required.
What is the surge current rating of the 1N5351CE3/TR13 and how is it defined?
The 1N5351CE3/TR13 has a maximum non-recurrent surge current (IZSM) of 6.7 A, specified as the peak value of an 8.3 ms half-sine waveform - matching common automotive and industrial transient test standards such as ISO 7637-2 Pulse 1 and Pulse 2a.
1N5351CE3/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):
- 14 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10.1 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
1N5351CE3/TR13 FAQ
1.How can I place an order for 1N5351CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5351CE3/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 1N5351CE3/TR13 reliable?
The price and inventory of 1N5351CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5351CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N5351CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5351CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5351CE3/TR13?
1N5351CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5351CE3/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 1N5351CE3/TR13?
For technical support, including 1N5351CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5351CE3/TR13 requirements.
6.How does Aetrix verify that 1N5351CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N5351CE3/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 1N5351CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N5351CE3/TR13?
All 1N5351CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5351CE3/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 1N5351CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N5351CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5351CE3/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…
