My Inquiry
My Account
Microchip Technology 1N5358CE3/TR12
- Part No.:
- 1N5358CE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5358CE3/TR12.pdf
- Description:
- DIODE ZENER 22V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:2,229
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5358CE3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with a nominal regulation voltage of 22 V, ±2% tolerance (C suffix), 3.5 Ω maximum dynamic impedance at 50 mA test current, and 75 mA maximum regulator current when adequately heat-sunk. It operates across –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5358CE3/TR12 datasheet, 1N5358CE3/TR12 pinout, 1N5358CE3/TR12 application, or 1N5358CE3/TR12 equivalent, key selection criteria include its ±2% VZ tolerance, low 3.5 Ω ZZ, 25 °C/W junction-to-lead thermal resistance, RoHS-compliant matte-tin plating, and T-18 axial package compatibility with manual or wave soldering per MIL-STD-750.
Technical Context
The 1N5358CE3/TR12 functions as a two-terminal shunt voltage regulator, maintaining stable 22 V output across a wide reverse current range (10–75 mA) with minimal voltage drift. Its low dynamic impedance (3.5 Ω) and tight ±2% tolerance ensure high regulation accuracy under varying load and temperature conditions.
Designed for through-hole mounting on FR4 PCBs with 1 oz copper, it delivers 5.0 W steady-state power at 25 °C lead temperature (3/8″ from body), derating linearly above that point. Its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1-no dry pack required-and it withstands 260 °C soldering for 10 s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±2% at 50 mA - ensures precise reference stability for feedback loops in regulated DC-DC converters |
| Power Dissipation (PD) | 5.0 W at TL = 25 °C - supports robust overvoltage clamping without external heatsink for moderate-duty cycles |
| Dynamic Impedance (ZZ) | 3.5 Ω max at IZT = 50 mA - minimizes output voltage variation under dynamic load transients |
| Max Regulator Current (IZM) | 75 mA - defines safe continuous operating current limit with adequate heat sinking |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables accurate thermal design using lead temperature as proxy for junction temp |
| Reverse Leakage (IR) | 0.5 μA max at VR = 15.8 V - guarantees negligible standby current in high-impedance bias networks |
| Surge Current (IZSM) | 216 A peak (8.3 ms half-sine) - provides transient overvoltage immunity in surge-prone industrial environments |
Pinout & Package
Package: T-18 axial-leaded plastic case (Void-free UL94V-0 epoxy), cathode indicated by 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 (unbanded end) | Current sink terminal during reverse breakdown | Connected to system ground or lower-potential node; must handle full IZ and IZSM currents |
| Cathode (banded end) | Regulated voltage output node | Provides stable 22 V reference; polarity must be observed-reverse connection causes forward conduction (~1.2 V drop) |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without post-calibration in analog sensing and feedback circuits |
| JEDEC-registered T-18 package | Ensures mechanical and soldering compatibility with legacy industrial assembly lines and hand-soldering workflows |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and baking steps-reduces handling cost and avoids moisture-induced popcorning |
| 260 °C solder tolerance (10 s) | Supports standard wave and reflow profiles without degradation-no special thermal profiling needed |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Reduces need for ESD controls during board assembly-lowers manufacturing overhead in non-cleanroom settings |
Applications
| Industrial Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or forward converter feedback networks using optocoupler-coupled TL431 alternatives. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 22 V threshold to control PWM duty cycle via error amplifier input. Use Value: ±2% VZ tolerance and 3.5 Ω ZZ reduce output regulation error to <±0.5% across line/load/temperature, improving system compliance with EN 61000-3-2. | Use Scenario: Protecting downstream 24 V rail electronics (e.g., PLC I/O modules) from transient surges exceeding 30 V. IC Role / Device Role / Timing Role: Passive crowbar element clamping voltage to 22 V + ZZ×Isurge during 8.3 ms lightning-induced transients. Use Value: 216 A surge rating and 25 °C/W RθJL allow single-device clamping without series resistors or active drivers-reducing BOM count and footprint. |
| Programmable Reference Generator | Temperature-Stable Bias Network |
Use Scenario: Generating adjustable reference voltages in analog front-ends for RTD or thermocouple signal conditioning. IC Role / Device Role / Timing Role: Precision 22 V source feeding resistor-divider networks to derive sub-1 V or ratiometric references. Use Value: Low ΔVZ (0.45 V) between 10–50% IZM ensures <0.1% reference drift across operating current range-critical for 16-bit ADC accuracy. | Use Scenario: Establishing stable bias points for op-amp input stages in harsh-environment sensor amplifiers (e.g., oil & gas downhole tools). IC Role / Device Role / Timing Role: Temperature-compensated voltage reference replacing higher-cost IC references where -65 °C to +150 °C operation is mandatory. Use Value: Specified operation to +150 °C with <100 ppm/°C typical TC and no derating up to 125 °C-enables direct replacement of MIL-spec references in extended-temp designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358B | Same 22 V nominal VZ, but ±5% tolerance (B suffix) and 3.5 Ω ZZ; no e3 RoHS marking | Acceptable where ±5% regulation is sufficient and RoHS compliance is not mandated | Select 1N5358B only if legacy qualification or cost sensitivity outweighs precision and environmental requirements |
| MMSZ5247ET1G | Surface-mount SOD-123 package, 20 V nominal VZ, ±5%, 30 Ω ZZ, 500 mW PD | Suitable for space-constrained PCBs but lacks surge capability (max IZSM ~10 A) and thermal performance for 5 W dissipation | Choose MMSZ5247ET1G only for low-power, high-density layouts where 22 V exactness and 216 A surge immunity are not required |
Compared with 1N5358B and MMSZ5247ET1G, the 1N5358CE3/TR12 uniquely combines ±2% tolerance, 5 W power handling, 216 A surge rating, and RoHS compliance in an industry-standard axial package-making it the only option for precision, high-reliability, high-energy clamping in industrial power systems.
Availability
1N5358CE3/TR12 is available at Aetrix Electronics and suitable for industrial power supply feedback, overvoltage protection clamp, and programmable reference generator applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5358CE3/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) 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 voltage regulation in mission-critical power systems where precision, surge resilience, and extended temperature operation are non-negotiable.
FAQ
What is the Zener voltage tolerance of the 1N5358CE3/TR12?
The 1N5358CE3/TR12 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its measured VZ at 50 mA test current falls within 21.56 V to 22.44 V at 25 °C lead temperature. This tighter tolerance supports applications demanding higher reference accuracy than the standard ±5% (B suffix) or ±10% (A suffix) variants.
Does the 1N5358CE3/TR12 require dry packing or baking before PCB assembly?
No, the 1N5358CE3/TR12 does not require dry packing or baking prior to assembly. Its moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1, confirmed in the official Microsemi datasheet. This eliminates moisture-related risks like popcorning during reflow or wave soldering, simplifying handling and reducing manufacturing overhead.
What is the maximum surge current rating for the 1N5358CE3/TR12?
The 1N5358CE3/TR12 has a maximum non-recurrent surge current (IZSM) rating of 216 A, specified as the peak value of an 8.3 ms half-sine waveform. This rating is validated per JEDEC standards and enables reliable transient suppression in industrial environments subject to lightning-induced surges or inductive switching spikes.
Can the 1N5358CE3/TR12 be used in surface-mount designs?
No, the 1N5358CE3/TR12 is an axial-leaded T-18 package device and is not suitable for surface-mount assembly. For SMT equivalents, Microsemi offers the SMBJ5358B (DO-214AA) and SMBG5358B (DO-214AB) variants. These share the same 22 V ±2% electrical characteristics but differ in thermal performance and mounting method.
What is the forward voltage specification for the 1N5358CE3/TR12?
The forward voltage (VF) of the 1N5358CE3/TR12 is specified as a maximum of 1.2 V at 1.0 A forward current. This parameter applies only when the device is operated in forward conduction mode (anode positive relative to cathode), which is outside its intended Zener regulation use case-but relevant for reverse-polarity protection or rectifier fallback analysis.
1N5358CE3/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):
- 22 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 15.8 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
1N5358CE3/TR12 FAQ
1.How can I place an order for 1N5358CE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5358CE3/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 1N5358CE3/TR12 reliable?
The price and inventory of 1N5358CE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5358CE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5358CE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5358CE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5358CE3/TR12?
1N5358CE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5358CE3/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 1N5358CE3/TR12?
For technical support, including 1N5358CE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5358CE3/TR12 requirements.
6.How does Aetrix verify that 1N5358CE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5358CE3/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 1N5358CE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5358CE3/TR12?
All 1N5358CE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5358CE3/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 1N5358CE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5358CE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5358CE3/TR12 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…
