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Microchip Technology 1N4741CPE3/TR12
- Part No.:
- 1N4741CPE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4741CPE3/TR12.pdf
- Description:
- DIODE ZENER 11V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,188
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Product details
Overview
1N4741CPE3/TR12 from Microsemi is a 11 V, ±2% tolerance, 1 W plastic-encapsulated Zener diode in DO-41 package, rated for 23 mA test current, 8 Ω dynamic impedance at IZT, and reverse leakage ≤5 µA at 8.4 V. It provides precision voltage regulation in power supply reference and overvoltage protection circuits across industrial temperature range.
For engineers reviewing the 1N4741CPE3/TR12 datasheet, 1N4741CPE3/TR12 pinout, 1N4741CPE3/TR12 application, or 1N4741CPE3/TR12 equivalent, key selection criteria include its tight 2% Zener voltage tolerance, low 8 Ω ZZT, RoHS-compliant matte-tin plating, and TR12 tape-and-reel packaging for automated assembly.
Technical Context
This device operates in reverse breakdown to maintain stable 11 V output across regulated current range (1–23 mA), with thermal resistance of 45 °C/W junction-to-lead (3/8″ lead length) and 105 °C/W junction-to-ambient on FR4 board. Its Zener knee is characterized at IZK = 0.25 mA with ZZK ≤ 400 Ω.
Designed for axial-leaded mounting, it features cathode band polarity marking, UL94V-0 epoxy case, and ESD immunity per MIL-STD-750 Method 1020. Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11 V ±2% at 23 mA - ensures precise reference stability for feedback loops and voltage clamping |
| Power Dissipation | 1.0 W at TL < 105 °C - supports continuous operation in compact PCB layouts with adequate lead heatsinking |
| Dynamic Impedance (ZZT) | 8 Ω max at IZT = 23 mA - minimizes output voltage variation under load transients |
| Reverse Leakage (IR) | ≤5 µA at VR = 8.4 V - guarantees low quiescent current in standby regulation circuits |
| Max Regulator Current (IZM) | 414 mA at TA = 50 °C - defines safe peak current limit before thermal runaway |
| Forward Voltage | ≤1.2 V at 200 mA - enables use as forward-biased clamp or protection diode when needed |
| Operating Temp Range | −65 °C to +150 °C - suitable for automotive under-hood and industrial control environments |
Pinout & Package
DO-41 (DO-204AL) plastic axial-lead package with cathode indicated by colored band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower-potential node during Zener operation; forward conduction path when biased positively |
| Cathode | Banded end | Connected to higher-potential node during regulation; defines Zener breakdown direction and polarity-sensitive mounting |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables tighter feedback loop accuracy than standard ±5% (A suffix) parts without requiring external trimming |
| RoHS-compliant "e3" suffix | Meets global environmental compliance requirements with annealed matte-tin plating and lead-free assembly compatibility |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints - simplifies SMT line handling and inventory management |
| Low Zener knee impedance (ZZK ≤ 400 Ω @ 0.25 mA) | Ensures stable regulation even at very low bias currents, critical for ultra-low-power monitoring circuits |
| JEDEC-registered 1N47xxAP series | Guarantees mechanical and electrical interchangeability with legacy designs using same JEDEC outline and ratings |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator ICs or discrete transistor-based regulators. IC Role / Device Role / Timing Role: Zener reference element providing fixed 11 V setpoint for error amplifier input. Use Value: Maintains ±2% output voltage accuracy across temperature and line variations due to tight VZ tolerance and low ZZT. | Use Scenario: Clamping transient surges on 12 V automotive or industrial bus lines. IC Role / Device Role / Timing Role: Shunt protection device diverting excess energy to ground above 11 V threshold. Use Value: Limits peak voltage to 11.22 V (max) with fast response and 414 mA surge capability, preventing downstream IC damage. |
| Voltage Monitor Threshold | Signal Level Translation |
Use Scenario: Detecting undervoltage or overvoltage conditions in battery-powered instrumentation. IC Role / Device Role / Timing Role: Precision threshold detector in comparator input stage with known 11 V reference. Use Value: Enables reliable 11 V trip point with <5 µA leakage, minimizing false triggers in low-current sensing paths. | Use Scenario: Biasing logic-level shifters or interfacing 3.3 V microcontrollers with 12 V peripherals. IC Role / Device Role / Timing Role: Clamp diode establishing defined high-side voltage ceiling for signal integrity. Use Value: Prevents signal overshoot beyond 11 V while maintaining low forward drop (<1.2 V) for bidirectional level adaptation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4741A | Same 11 V nominal, but ±5% tolerance (A suffix) vs. ±2% (C suffix); otherwise identical electrical specs and DO-41 package | Acceptable where reference accuracy is less critical; higher unit cost variability due to wider VZ binning | Select 1N4741CPE3/TR12 when system-level calibration or long-term drift budget requires tighter initial tolerance |
| MMSZ4702T1G | Surface-mount SOD-123 package; 11 V ±5%, 500 mW rating; ZZT = 10 Ω @ 20 mA - slightly higher impedance and lower power | Used in space-constrained PCBs where axial leads are incompatible with layout or automated placement | Choose MMSZ4702T1G only if footprint reduction outweighs need for 1 W dissipation and ±2% precision |
Compared with 1N4741A and MMSZ4702T1G, the 1N4741CPE3/TR12 delivers superior voltage accuracy and thermal robustness for through-hole power regulation, while retaining full JEDEC compatibility and RoHS compliance - making it optimal for industrial and automotive-grade designs demanding reliability and repeatability.
Availability
1N4741CPE3/TR12 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and voltage monitor threshold applications requiring stable component supply, consistent Zener voltage binning, and RoHS-compliant tape-and-reel delivery.
Supply support for 1N4741CPE3/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 1N47xxAP Zener series was engineered for ruggedized voltage regulation in mission-critical systems, emphasizing thermal stability, moisture resilience, and long-term parametric consistency under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N4741CPE3/TR12?
The 1N4741CPE3/TR12 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its nominal 11 V breakdown voltage falls within 10.78 V to 11.22 V at 23 mA test current and 25 °C lead temperature, enabling tighter regulation than standard ±5% variants like the 1N4741A.
Does the 1N4741CPE3/TR12 meet RoHS requirements?
Yes, the "e3" suffix confirms the 1N4741CPE3/TR12 is RoHS compliant, featuring annealed matte-tin plating on leads and halogen-free epoxy encapsulation. It satisfies Directive 2011/65/EU and is compatible with lead-free reflow profiles up to 260 °C for 10 seconds.
What is the maximum power dissipation for the 1N4741CPE3/TR12?
The 1N4741CPE3/TR12 is rated for 1.0 W steady-state power dissipation at lead temperature (TL) below 105 °C with 3/8″ (10 mm) lead length from body. Derating is required above this temperature, following the curve in Figure 1 of the Microsemi datasheet, down to zero watt capability at 175 °C TL.
How is polarity marked on the 1N4741CPE3/TR12?
The 1N4741CPE3/TR12 uses a cathode band - a single colored ring near one end of the DO-41 package - to indicate the cathode terminal. During Zener operation, the banded end must be held at a higher potential than the anode (non-banded end) to achieve reverse-bias breakdown and voltage regulation.
What does the "TR12" suffix mean in 1N4741CPE3/TR12?
The "TR12" suffix indicates tape-and-reel packaging per EIA-296 standard, with 12,000 units per reel. This format supports automated pick-and-place assembly and ensures consistent orientation and handling for high-volume manufacturing of the 1N4741CPE3/TR12.
1N4741CPE3/TR12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 8 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 8.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
1N4741CPE3/TR12 FAQ
1.How can I place an order for 1N4741CPE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4741CPE3/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 1N4741CPE3/TR12 reliable?
The price and inventory of 1N4741CPE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4741CPE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N4741CPE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4741CPE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4741CPE3/TR12?
1N4741CPE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4741CPE3/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 1N4741CPE3/TR12?
For technical support, including 1N4741CPE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4741CPE3/TR12 requirements.
6.How does Aetrix verify that 1N4741CPE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N4741CPE3/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 1N4741CPE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N4741CPE3/TR12?
All 1N4741CPE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4741CPE3/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 1N4741CPE3/TR12 part is unused and in its original packaging.
Return procedure for 1N4741CPE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4741CPE3/TR12 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MM5Z5V1ST1G
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