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Microchip Technology 1N4741CE3/TR13
- Part No.:
- 1N4741CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4741CE3/TR13.pdf
- Description:
- DIODE ZENER 11V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,114
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Product details
Overview
1N4741CE3/TR13 from Microsemi is a 11 V, ±2% tolerance, 1 W silicon Zener diode in DO-41 plastic package, rated for 23 mA test current, 8 Ω dynamic impedance at IZT, and 5 μA reverse leakage at 8.4 V, used for precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4741CE3/TR13 datasheet, 1N4741CE3/TR13 pinout, 1N4741CE3/TR13 application, or 1N4741CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (45 °C/W junction-to-lead), surge current rating (414 mA), RoHS-compliant matte-tin plating, and tape-and-reel packaging per EIA-296.
Technical Context
This device operates in reverse breakdown to maintain stable output voltage across varying load and line conditions. It exhibits a sharp knee at 23 mA test current with 8 Ω dynamic impedance, enabling low-noise regulation in analog references and feedback loops.
Designed for axial-leaded mounting on FR4 PCBs, it delivers 1.0 W steady-state dissipation at lead temperature <105 °C (3/8″ from body) or ambient <45 °C, with thermal resistance of 105 °C/W junction-to-ambient under defined copper pad conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11 V ±2% at 23 mA - ensures tight regulation stability for reference circuits requiring <2% error budget. |
| Power Dissipation | 1.0 W at TL < 105 °C - supports continuous operation in compact power supplies without forced cooling. |
| Dynamic Impedance (ZZT) | 8 Ω @ 23 mA - minimizes output voltage variation under changing load current, critical for feedback accuracy. |
| Reverse Leakage (IR) | 5 μA @ 8.4 V - guarantees low standby current in battery-backed or energy-sensitive applications. |
| Surge Current (ISM) | 414 mA (½-sine, 1/120 s) - withstands transient overloads during power-up or fault events without degradation. |
| Thermal Resistance | 45 °C/W junction-to-lead - enables reliable heat transfer through axial leads when mounted with 10 mm lead length. |
| Operating Temperature | –65 °C to +150 °C - suitable for industrial and automotive under-hood environments. |
Pinout & Package
DO-41 (DO-204AL) plastic molded package with axial leads; cathode indicated by band; polarity must be observed - banded end positive for Zener regulation mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; reverse-biased relative to cathode during regulation. |
| Cathode | Zener breakdown terminal / regulated output node | Connected to unregulated input; develops stable 11 V relative to anode when reverse current ≥23 mA. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance (C suffix) | Enables high-accuracy voltage references without post-calibration in precision analog systems. |
| RoHS-compliant matte-tin plating (e3 suffix) | Ensures solderability and long-term reliability under lead-free reflow profiles up to 260 °C for 10 s. |
| Tape-and-reel packaging (TR13 suffix) | Supports automated SMT placement compatibility despite axial-lead form factor via carrier tape handling. |
| Moisture sensitivity Level 1 (J-STD-020B) | Eliminates dry-pack requirement and baking prior to assembly, reducing manufacturing overhead. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Permits safe handling in standard production environments without special ESD controls. |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator ICs or discrete op-amp-based regulators. IC Role / Device Role / Timing Role: Provides precise 11 V reference for error amplifier comparison against output voltage. Use Value: Maintains ±2% output regulation accuracy across temperature and load variations due to low ZZT and tight VZ tolerance. | Use Scenario: Protecting downstream logic inputs from transient voltage spikes exceeding 12 V. IC Role / Device Role / Timing Role: Shunts excess current above 11 V to ground before damage threshold of protected IC is reached. Use Value: Absorbs 414 mA surge pulses without parametric shift, ensuring repeatable clamping performance over lifetime. |
| Current Source Bias | Signal Level Translation |
Use Scenario: Generating stable bias current for transistor amplifiers or LED drivers using constant-voltage drop. IC Role / Device Role / Timing Role: Sets emitter-base voltage differential in cascode or current-mirror configurations. Use Value: Delivers predictable 23 mA test current with minimal drift (–65 °C to +150 °C), improving DC bias stability. | Use Scenario: Shifting TTL logic levels to 11 V for interface with higher-voltage analog subsystems. IC Role / Device Role / Timing Role: Acts as bidirectional level translator by exploiting forward conduction (1.2 V) and reverse Zener action (11 V). Use Value: Enables robust signal translation with <1.2 V forward drop and sharp 11 V reverse knee, minimizing timing skew. |
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) and no RoHS or tape-and-reel designation. | Suitable for cost-sensitive, non-RoHS designs where ±5% regulation is acceptable. | Select 1N4741CE3/TR13 when ±2% tolerance, lead-free compliance, and automated assembly support are required. |
| BZX84-C11 | SOT-23 surface-mount package, 11 V ±5%, 300 mW power rating, higher ZZT (~20 Ω). | Used in space-constrained PCBs where axial DO-41 footprint is prohibitive. | Choose 1N4741CE3/TR13 for higher power (1 W), lower impedance, and axial mounting flexibility; BZX84-C11 only if SMT is mandatory. |
Compared with 1N4741A and BZX84-C11, the 1N4741CE3/TR13 offers tighter voltage control, higher surge resilience, and full RoHS compliance-making it optimal for industrial-grade power references where long-term stability and assembly compatibility are critical.
Availability
1N4741CE3/TR13 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and current source bias applications requiring stable component supply, consistent Zener voltage tolerance, and RoHS-compliant manufacturing.
Supply support for 1N4741CE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N47xxA series was developed to deliver JEDEC-standardized, high-stability Zener regulation in ruggedized plastic packages for mission-critical power conditioning and protection functions.
FAQ
What is the Zener voltage tolerance of the 1N4741CE3/TR13?
The 1N4741CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its nominal 11 V Zener voltage is guaranteed between 10.78 V and 11.22 V at 23 mA test current and 25 °C lead temperature. This tighter tolerance supports precision voltage references where ±5% devices like the 1N4741A would introduce unacceptable error margins.
Does the 1N4741CE3/TR13 meet RoHS requirements?
Yes, the "e3" suffix confirms the 1N4741CE3/TR13 is RoHS compliant, featuring annealed matte-tin plating instead of tin-lead. It is qualified for lead-free reflow soldering up to 260 °C for 10 seconds per MIL-STD-750 Method 2026, making it suitable for modern environmentally regulated production lines.
What does the "TR13" suffix indicate for the 1N4741CE3/TR13?
The "TR13" suffix indicates tape-and-reel packaging per EIA-296 standards, with 13-inch reels. This format enables automated pick-and-place handling during high-volume assembly, even though the DO-41 package is axial-leaded. The carrier tape preserves polarity orientation and protects leads from mechanical damage pre-placement.
What is the maximum surge current rating for the 1N4741CE3/TR13?
The 1N4741CE3/TR13 has a maximum surge current (ISM) rating of 414 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25 °C ambient. This capability allows the device to absorb short-duration transients-such as inductive kickback or ESD events-without permanent parameter shift or failure.
How does thermal resistance affect the 1N4741CE3/TR13's power handling?
The 1N4741CE3/TR13 has a junction-to-lead thermal resistance of 45 °C/W. At 25 °C ambient, this allows full 1.0 W dissipation only if lead temperature remains below 105 °C (3/8″ from body). On FR4 boards with defined copper pads, junction-to-ambient resistance rises to 105 °C/W, limiting usable power to ~450 mW at 45 °C ambient-requiring derating per Figure 1 in the datasheet.
1N4741CE3/TR13 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)
1N4741CE3/TR13 FAQ
1.How can I place an order for 1N4741CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4741CE3/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 1N4741CE3/TR13 reliable?
The price and inventory of 1N4741CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4741CE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N4741CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4741CE3/TR13 transactions.
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4.How is shipping managed for 1N4741CE3/TR13?
1N4741CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4741CE3/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 1N4741CE3/TR13?
For technical support, including 1N4741CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4741CE3/TR13 requirements.
6.How does Aetrix verify that 1N4741CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N4741CE3/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 1N4741CE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N4741CE3/TR13?
All 1N4741CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4741CE3/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 1N4741CE3/TR13 part is unused and in its original packaging.
Return procedure for 1N4741CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4741CE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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