My Inquiry
My Account
Microchip Technology 1N5359CE3/TR8
- Part No.:
- 1N5359CE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5359CE3/TR8.pdf
- Description:
- DIODE ZENER 24V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:8,355
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5359CE3/TR8 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 24 V, ±2% tolerance (C 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 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 1N5359CE3/TR8 datasheet, 1N5359CE3/TR8 pinout, 1N5359CE3/TR8 application, or 1N5359CE3/TR8 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 in reverse-biased mode, maintaining stable output voltage under varying load and line conditions. Its low dynamic impedance (3.5 Ω) and tight ±2% tolerance ensure minimal voltage drift across operating current (10–50% IZM) and temperature (–65 °C to +150 °C).
The 1N5359CE3/TR8 uses a void-free thermosetting epoxy T-18 package with cathode band marking and is rated for 5.0 W steady-state dissipation at 25 °C lead temperature (3/8″ from body). Thermal resistance is 25 °C/W junction-to-lead and 85 °C/W junction-to-ambient on FR4 with defined copper pad geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±2% - precise regulation point for feedback networks requiring high stability |
| Test Current (IZT) | 50 mA - operating point at which VZ and ZZ are specified; defines biasing requirement |
| Dynamic Impedance (ZZ) | 3.5 Ω - low AC resistance ensures minimal output voltage variation under dynamic load changes |
| Max Reverse Current (IR) | 0.5 μA at VR = 19.4 V - confirms sharp knee and low leakage below regulation threshold |
| Max Regulator Current (IZM) | 100 mA - maximum DC current before exceeding 5 W power limit at 25 °C lead temp |
| Surge Current (IZSM) | 100 A (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Voltage Regulation (ΔVZ) | 0.55 V - difference between VZ measured at 10% and 50% of IZM; quantifies regulation linearity |
Pinout & Package
T-18 axial-leaded plastic package with cathode indicated by colored band; leads are annealed matte-tin plated (RoHS compliant), solderable per MIL-STD-750 Method 2026; weight: 0.7 g; moisture sensitivity level: IPC/JEDEC J-STD-020B Level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to system ground or lower-potential rail; carries full load current when regulating |
| Cathode | Zener breakdown terminal / Regulated output node | Banded end; connected to voltage node being stabilized; sinks current to maintain VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without external trimming in industrial power supplies |
| 25 °C/W junction-to-lead thermal resistance | Supports 5 W continuous operation with simple 3/8″ lead heatsinking-no PCB copper pour needed |
| 100 A non-repetitive surge rating (8.3 ms) | Clamps lightning-induced transients and inductive switch-off spikes in DC power rails |
| Moisture sensitivity Level 1 | Eliminates baking requirements prior to reflow; compatible with standard SMT assembly lines |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces handling precautions and ESD protection circuitry in final assembly |
Applications
| Industrial Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or forward converter feedback paths using optocoupler-coupled TL431 alternatives. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 24 V reference to error amplifier input. Use Value: ±2% tolerance and 0.55 V ΔVZ ensure <±0.6% total output variation across line/load/temperature. |
Use Scenario: Protecting 24 V DC input rails against load dump or inductive kick in factory automation controllers. IC Role / Device Role / Timing Role: Passive clamp absorbing transient energy above 24 V threshold. Use Value: 100 A surge rating and low ZZ enable clamping within 100 ns while limiting peak voltage to ≤24.6 V. |
| Programmable Logic Controller I/O Protection | Test Equipment Voltage Reference |
Use Scenario: Safeguarding digital input circuits from field-wiring faults and induced surges in PLC backplanes. IC Role / Device Role / Timing Role: Bidirectional transient suppressor (with series resistor) referenced to 24 V supply rail. Use Value: 0.5 μA IR at 19.4 V ensures negligible standby current draw and no false triggering during normal operation. |
Use Scenario: Providing stable 24 V reference for calibration circuits in portable multimeters and bench power supplies. IC Role / Device Role / Timing Role: Precision shunt reference replacing active ICs where ultra-low noise and zero quiescent current are critical. Use Value: 3.5 Ω ZZ and <10 ppm/°C TC (inferred from ΔVZ = 0.55 V over 4× IZM range) support <0.01% reference stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5359B | Same 24 V nominal VZ but ±5% tolerance (B suffix); higher IR (0.5 μA vs same VR), identical ZZ and IZM | Acceptable where tighter tolerance not required; lower cost; wider VZ spread increases calibration uncertainty | Select 1N5359B for cost-sensitive industrial controls where ±5% regulation is sufficient |
| MMSZ5242B-TP | Surface-mount SOD-123 package; 24 V ±5%; 500 mW rating; 22 Ω ZZ; 100 nA IR at 19.2 V | Not suitable for 5 W continuous dissipation; limited to low-power bias/reference use; requires PCB layout change | Choose MMSZ5242B-TP only for space-constrained, low-current (<10 mA) reference designs-not as drop-in replacement |
Compared with 1N5359B and MMSZ5242B-TP, the 1N5359CE3/TR8 delivers superior thermal performance (25 °C/W vs >200 °C/W for SOD-123), higher surge robustness (100 A vs ~10 A), and tighter tolerance-making it optimal for high-reliability 24 V power rail stabilization where leaded mounting and 5 W capability are design requirements.
Availability
1N5359CE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, programmable logic controller I/O protection, and test equipment voltage reference designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N5359CE3/TR8 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 axial Zener regulation in harsh-environment power systems-emphasizing thermal robustness, surge immunity, and extended temperature operation.
FAQ
What is the Zener voltage tolerance of the 1N5359CE3/TR8?
The 1N5359CE3/TR8 has a Zener voltage tolerance of ±2%, indicated by the "C" suffix in the part number. This means its actual regulation voltage falls within 23.52 V to 24.48 V at 50 mA test current and 25 °C lead temperature. The tighter tolerance enables higher accuracy in feedback and reference applications compared to ±5% (B suffix) or ±10% (A suffix) variants of the same 1N5359 family.
Does the 1N5359CE3/TR8 require derating at elevated temperatures?
Yes, the 1N5359CE3/TR8 must be derated above 25 °C lead temperature. Its power dissipation decreases linearly at 20 mW/°C beyond 25 °C, reaching zero at 125 °C lead temperature. For ambient-mounted operation on FR4, steady-state power drops to 1.47 W at 25 °C ambient due to higher junction-to-ambient thermal resistance (85 °C/W). Full 5 W operation requires direct lead heatsinking per Figure 1 in the datasheet.
What does the "TR8" suffix indicate in 1N5359CE3/TR8?
The "TR8" suffix denotes tape-and-reel packaging per EIA-296 standard, with 8 mm tape width and component orientation optimized for automated pick-and-place assembly. The "e3" portion confirms RoHS compliance with matte-tin lead plating. Together, "CE3/TR8" specifies a ±2% tolerance, RoHS-compliant, tape-and-reel version of the 24 V 5 W Zener diode.
Can the 1N5359CE3/TR8 be used in place of the 1N5359B in existing designs?
The 1N5359CE3/TR8 is mechanically and electrically pin-compatible with the 1N5359B, sharing identical T-18 package, pinout, thermal characteristics, and 24 V nominal Zener voltage. The primary difference is tighter ±2% tolerance versus ±5%, which improves regulation accuracy without requiring layout or bill-of-material changes-making it a direct upgrade where enhanced voltage stability is needed.
What is the maximum surge current rating for the 1N5359CE3/TR8?
The 1N5359CE3/TR8 is rated for a maximum non-repetitive surge current (IZSM) of 100 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy-such as from inductive load switching or ESD events-without degradation, provided the surge interval allows full thermal recovery between events.
1N5359CE3/TR8 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:
- ±2%
- 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
1N5359CE3/TR8 FAQ
1.How can I place an order for 1N5359CE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5359CE3/TR8 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 1N5359CE3/TR8 reliable?
The price and inventory of 1N5359CE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5359CE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N5359CE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5359CE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5359CE3/TR8?
1N5359CE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5359CE3/TR8 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 1N5359CE3/TR8?
For technical support, including 1N5359CE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5359CE3/TR8 requirements.
6.How does Aetrix verify that 1N5359CE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N5359CE3/TR8 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 1N5359CE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N5359CE3/TR8?
All 1N5359CE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5359CE3/TR8, 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 1N5359CE3/TR8 part is unused and in its original packaging.
Return procedure for 1N5359CE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5359CE3/TR8 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…
