My Inquiry
My Account
Microchip Technology 1N5352AE3/TR12
- Part No.:
- 1N5352AE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5352AE3/TR12.pdf
- Description:
- DIODE ZENER 15V 5W T18
- Quantity:
- Payment:
- Shipping:
Inventory:4,902
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5352AE3/TR12 from Microsemi is a 5 W axial-leaded silicon Zener diode with nominal regulation voltage of 15 V, ±10% tolerance (A suffix), 2.5 Ω maximum dynamic impedance at 75 mA test current, and 6.3 A maximum surge current. It operates from −65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the 1N5352AE3/TR12 datasheet, 1N5352AE3/TR12 pinout, 1N5352AE3/TR12 application, or 1N5352AE3/TR12 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (25 °C/W junction-to-lead), steady-state power rating (5 W at TL < 25 °C), reverse leakage current (1.0 μA at 10.8 V), and RoHS-compliant matte-tin plating.
Technical Context
This device functions as a two-terminal voltage regulator operating in reverse breakdown mode. Its Zener voltage is specified at 75 mA test current (IZT) with ΔVZ ≤ 0.25 V between 10% and 50% of IZM, and it exhibits low dynamic impedance (2.5 Ω) ensuring stable regulation under varying load currents.
The 1N5352AE3/TR12 uses a void-free thermosetting epoxy T-18 package with cathode band polarity marking, rated for 260 °C soldering (10 s max), and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±10% - defines nominal regulation point under 75 mA DC bias; high-end limit is 16.5 V for IZM calculation. |
| Test Current (IZT) | 75 mA - standardized bias condition for VZ measurement; ensures repeatable specification across production lots. |
| Dynamic Impedance (ZZ) | 2.5 Ω max - low AC impedance enables tight voltage regulation during transient load changes. |
| Max Reverse Leakage (IR) | 1.0 μA at 10.8 V - confirms minimal off-state conduction below knee voltage, critical for low-power standby circuits. |
| Surge Current (IZSM) | 6.3 A peak (8.3 ms half-sine) - supports transient overvoltage clamping without failure in surge-prone environments. |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - requires ≥10 mm lead length from body for full 5 W dissipation; derates linearly above 25 °C. |
| Forward Voltage (VF) | 1.2 V max at 1.0 A - defines forward conduction loss when used in bidirectional clamp configurations or reverse-polarity protection. |
Pinout & Package
Package: T-18 axial-leaded plastic encapsulated case per JEDEC DO-41 outline; void-free UL94V-0 epoxy body; cathode indicated by color band; leads plated with RoHS-compliant matte tin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias operation | Connected to lower potential side; must be held negative relative to cathode to enter Zener breakdown. |
| Cathode | Regulated output node | Banded end; connected to higher potential side; delivers stable 15 V (±10%) when reverse-biased above knee voltage. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener family | Ensures mechanical and electrical interchangeability across manufacturers using DO-41/T-18 footprint and standard test conditions. |
| RoHS-compliant e3 suffix | Meets EU Directive 2011/65/EU with annealed matte-tin plating-no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE. |
| Tape-and-reel TR12 packaging | Standard EIA-296 compliant carrier tape (12 mm width) enabling automated SMT placement despite axial-leaded form factor. |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020-no special handling required during assembly or field service. |
| Level 1 moisture sensitivity | No dry pack or baking needed before reflow; safe for standard PCB assembly processes without popcorn risk. |
Applications
| Industrial Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Provides precise 15 V reference to optocoupler input, enabling accurate output voltage regulation within ±1%. Use Value: Low ΔVZ (0.25 V) and 2.5 Ω ZZ minimize output drift across line/load/temperature variations. | Use Scenario: Clamping induced transients on 12 V automotive control bus lines exposed to load-dump events. IC Role / Device Role / Timing Role: Shunts excess energy to ground when bus voltage exceeds 16.5 V (VZ + tolerance), protecting downstream CAN transceivers. Use Value: 6.3 A surge rating absorbs 8.3 ms half-sine pulses without degradation, meeting ISO 7637-2 Pulse 5a requirements. |
| Programmable Current Source Bias | Temperature-Stable Sensor Excitation |
Use Scenario: Setting bias current for high-precision op-amp based current sources in calibration equipment. IC Role / Device Role / Timing Role: Delivers constant 75 mA through series resistor to establish fixed emitter current in transistor-based current mirrors. Use Value: Tight thermal resistance (25 °C/W) and wide operating range (−65 to +150 °C) maintain current stability across environmental chambers. | Use Scenario: Providing excitation voltage to platinum RTD sensors in HVAC control panels. IC Role / Device Role / Timing Role: Supplies regulated 15 V to Wheatstone bridge, minimizing self-heating errors and improving resistance measurement resolution. Use Value: 1.0 μA reverse leakage at 10.8 V prevents bridge imbalance errors; low ZZ suppresses noise coupling into analog front-end. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352B | Same 15 V nominal VZ, but ±5% tolerance (B suffix) and 2.5 Ω ZZ; no e3/RoHS designation. | Non-RoHS version suitable for legacy military or aerospace programs requiring tin-lead plating. | Select when compliance with MIL-STD-704 or legacy procurement specs mandates non-RoHS finish. |
| MMSZ5245B-TP | Surface-mount SOD-123 package; 15 V ±5%, 16 Ω ZZ at 20 mA; 500 mW rating-not directly power-scalable. | Limited to low-power signal-level regulation; cannot replace 5 W dissipation capability of 1N5352AE3/TR12. | Choose only for space-constrained PCBs where thermal management allows derated operation below 1 W. |
Compared with 1N5352B and MMSZ5245B-TP, the 1N5352AE3/TR12 uniquely combines RoHS compliance, 5 W power handling, axial-leaded manufacturability, and ±10% tolerance-making it optimal for cost-sensitive industrial power designs requiring robust surge immunity and tape-and-reel automation support.
Availability
1N5352AE3/TR12 is available at Aetrix Electronics and suitable for industrial power supply reference, overvoltage protection clamp, and programmable current source bias applications requiring stable component supply and long-term obsolescence management.
Supply support for 1N5352AE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N53xxB series was designed for ruggedized voltage regulation in harsh-environment power systems-emphasizing surge resilience, wide temperature operation, and JEDEC-standardized mechanical compatibility.
FAQ
What is the Zener voltage tolerance for 1N5352AE3/TR12?
The 1N5352AE3/TR12 has a ±10% Zener voltage tolerance, indicated by the "A" suffix per Microsemi documentation. This means its measured VZ falls between 13.5 V and 16.5 V at 75 mA test current and 25 °C lead temperature. The "e3" denotes RoHS compliance, and "TR12" specifies EIA-296 tape-and-reel packaging in 12 mm width.
Can 1N5352AE3/TR12 be used in surface-mount designs?
No-1N5352AE3/TR12 is an axial-leaded T-18 (DO-41) package and requires through-hole mounting. While it ships in tape-and-reel (TR12) format for automated handling, it is not a surface-mount device. For SMT equivalents, Microsemi offers SMBJ5352B or SMBG5352B, which share the same 15 V rating but use SMB/SMBG packages.
What is the maximum power dissipation of 1N5352AE3/TR12 at 70°C ambient?
At 70 °C ambient on an FR4 board with 1 oz copper, the 1N5352AE3/TR12 is derated to approximately 2.7 W. This derives from its 85 °C/W junction-to-ambient thermal resistance and 150 °C max junction temperature: PD = (150 − 70) / 85 ≈ 0.94 W-but the datasheet specifies 1.47 W at 25 °C ambient with defined copper pad layout, so linear derating yields ~1.47 × (1 − (70 − 25)/125) = ~1.1 W. However, with adequate heat sinking (junction-to-lead path), full 5 W is usable up to 25 °C lead temperature.
Does 1N5352AE3/TR12 require baking before reflow soldering?
No-1N5352AE3/TR12 has IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. Its void-free epoxy body eliminates popcorn risk during standard reflow profiles, including peak temperatures up to 260 °C for 10 seconds.
How does the 1N5352AE3/TR12 compare to the 1N4744A in terms of power handling?
The 1N5352AE3/TR12 is rated for 5 W continuous dissipation with proper heat sinking, while the 1N4744A is a 1 W Zener. Both regulate at 15 V, but the 1N5352AE3/TR12 supports 75 mA test current versus 1N4744A's 17 mA, and delivers 6.3 A surge current versus 1N4744A's ~1.5 A-making it suitable for high-energy clamping and industrial-grade references where thermal robustness is critical.
1N5352AE3/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):
- 15 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10.8 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
1N5352AE3/TR12 FAQ
1.How can I place an order for 1N5352AE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5352AE3/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 1N5352AE3/TR12 reliable?
The price and inventory of 1N5352AE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5352AE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N5352AE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5352AE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5352AE3/TR12?
1N5352AE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5352AE3/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 1N5352AE3/TR12?
For technical support, including 1N5352AE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5352AE3/TR12 requirements.
6.How does Aetrix verify that 1N5352AE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N5352AE3/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 1N5352AE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N5352AE3/TR12?
All 1N5352AE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5352AE3/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 1N5352AE3/TR12 part is unused and in its original packaging.
Return procedure for 1N5352AE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5352AE3/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…
