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Microchip Technology 1N4741E3/TR13
- Part No.:
- 1N4741E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4741E3/TR13.pdf
- Description:
- DIODE ZENER 11V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,577
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Product details
Overview
1N4741E3/TR13 from Microsemi is a 11 V, ±5% tolerance, 1 W silicon Zener diode in DO-41 plastic package, rated for 23 mA test current (IZT), 8 Ω dynamic impedance (ZZT), and 5 μA reverse leakage at 8.4 V (VR). It provides stable voltage regulation in power supply reference and overvoltage protection circuits across -65°C to +150°C.
For engineers reviewing the 1N4741E3/TR13 datasheet, 1N4741E3/TR13 pinout, 1N4741E3/TR13 application, or 1N4741E3/TR13 equivalent, key selection factors include Zener voltage tolerance, thermal resistance (45°C/W junction-to-lead), surge current rating (414 mA), RoHS compliance (e3 suffix), and tape-and-reel packaging (TR13).
Technical Context
This Zener operates in reverse breakdown mode with cathode band indicating polarity; regulation begins at nominal 11 V with sharp knee behavior confirmed by dual-point Zener impedance measurement per MicroNote 202. Its 1 W steady-state dissipation is valid at lead temperature <105°C (3/8" from body) or ambient <45°C on FR4 board with defined copper layout.
The device exhibits a temperature coefficient near zero (±2 mV/°C typical for 11 V Zeners per Figure 3), low forward voltage (≤1.2 V @ 200 mA), and ESD insensitivity per MIL-STD-750 Method 1020 - enabling reliable use in unregulated DC rails and analog reference nodes without external transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11 V ±5% at IZT = 23 mA - defines precise regulation point for feedback loops and reference generation |
| Power Dissipation | 1.0 W at TL < 105°C - sets maximum continuous power handling with standard lead mounting |
| Dynamic Impedance | 8 Ω at IZT = 23 mA - ensures minimal output voltage variation under load current changes |
| Reverse Leakage | 5 μA max at VR = 8.4 V - guarantees low quiescent current in standby or high-impedance bias networks |
| Surge Current (ISM) | 414 mA peak (½-sine, 1/120 s) - supports transient overvoltage clamping without degradation |
| Thermal Resistance | 45°C/W junction-to-lead - enables accurate thermal design using lead temperature as proxy for junction temp |
| Operating Temp | -65°C to +150°C - qualified for aerospace, industrial, and automotive under-hood environments |
Pinout & Package
DO-41 (DO-204AL) axial-leaded plastic package with cathode indicated by color band; terminals are non-polarized leads suitable for through-hole mounting. Moisture sensitivity level 1 - no dry pack required per IPC/JEDEC J-STD-020B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal / Zener cathode reference | Connected to lower-potential node; reverse-biased during regulation |
| Cathode (banded end) | Zener breakdown terminal / regulation output | Connected to higher-potential node; delivers stable 11 V when reverse-biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N47xxA registration | Industry-standard footprint and electrical behavior - ensures compatibility with legacy designs and PCB footprints |
| RoHS-compliant "e3" finish | Matte-tin plating per MIL-STD-750 Method 2026 - eliminates lead while maintaining solderability and corrosion resistance |
| Tape-and-reel packaging ("TR13") | EIA-296 compliant 13-inch reel - supports automated SMT placement despite axial-leaded form factor |
| Level 1 moisture sensitivity | No dry pack or baking required before assembly - reduces manufacturing overhead and avoids moisture-induced popcorning |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - eliminates need for ESD handling protocols during board assembly |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
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 threshold for error amplifier input. Use Value: Maintains ±5% output accuracy over temperature and line variations due to low dynamic impedance (8 Ω) and stable TC. | Use Scenario: Protecting microcontroller I/O pins from transient voltage spikes on sensor interface lines. IC Role / Device Role / Timing Role: Shunt clamp limiting voltage to 11 V during ESD or inductive kick events. Use Value: Absorbs 414 mA surge current without failure, preventing latch-up or gate oxide damage in downstream ICs. |
| DC Rail Monitor | Analog Signal Conditioning |
Use Scenario: Detecting undervoltage conditions in 12 V automotive subsystems using comparator input. IC Role / Device Role / Timing Role: Precision voltage divider element establishing 11 V reference for comparator threshold. Use Value: Delivers repeatable trip point across -40°C to +125°C due to JEDEC-qualified temperature coefficient behavior. | Use Scenario: Biasing op-amp input stages in precision instrumentation amplifiers requiring stable offset references. IC Role / Device Role / Timing Role: Low-noise, low-drift DC reference source for differential input common-mode setting. Use Value: Achieves <5 μA leakage at 8.4 V, minimizing input bias current errors in high-impedance sensor front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4741A | No "e3" RoHS suffix; Sn/Pb terminations; same VZ, IZT, ZZT, and package | Not suitable for lead-free assembly; requires Pb-based solder process | Select only if legacy Pb-process compatibility is mandatory and RoHS exemption applies |
| BZX55C11 | Same 11 V ±5%, but 500 mW rating, 15 Ω ZZT, and DO-35 package | Lower power handling limits use in >500 mW regulation or surge scenarios | Choose when board space is constrained and thermal load is ≤0.5 W; verify derating on FR4 |
Compared with 1N4741A and BZX55C11, the 1N4741E3/TR13 offers full RoHS compliance, 1 W power capability, and tape-and-reel readiness - making it optimal for modern high-reliability production where environmental compliance and automation compatibility are required.
Availability
1N4741E3/TR13 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and DC rail monitoring applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 1N4741E3/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 1N47xxAP series was designed specifically for robust, JEDEC-standardized voltage regulation in harsh-environment power systems - emphasizing thermal stability, ESD resilience, and long-term parametric consistency.
FAQ
What is the Zener voltage tolerance of the 1N4741E3/TR13?
The 1N4741E3/TR13 has a nominal Zener voltage of 11 V with a tolerance of ±5%, as indicated by the "A" suffix in its JEDEC designation. This tolerance is guaranteed at 23 mA test current and 25°C lead temperature, and remains stable across its full operating temperature range of -65°C to +150°C per Microsemi's characterization data.
Is the 1N4741E3/TR13 RoHS compliant?
Yes, the 1N4741E3/TR13 is RoHS compliant, confirmed by the "e3" suffix denoting matte-tin plating per MIL-STD-750 Method 2026. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE, and meets EU Directive 2011/65/EU requirements for restriction of hazardous substances in electrical equipment.
What does the "TR13" suffix indicate in 1N4741E3/TR13?
"TR13" specifies EIA-296-compliant tape-and-reel packaging on a 13-inch reel, enabling automated pick-and-place insertion despite the DO-41 axial-leaded form factor. This configuration supports high-volume manufacturing with verified orientation control and static-dissipative carrier tape - distinct from bulk or ammo-pack alternatives.
Can the 1N4741E3/TR13 replace older 1N4741A parts in existing designs?
Yes, the 1N4741E3/TR13 is a direct functional and mechanical replacement for 1N4741A, sharing identical Zener voltage, test current, dynamic impedance, package dimensions, and thermal characteristics. The only differences are RoHS-compliant terminations and tape-and-reel packaging - both compatible with standard DO-41 footprints and reflow/soldering processes.
What is the maximum surge current rating for the 1N4741E3/TR13?
The 1N4741E3/TR13 has a maximum non-repetitive surge current (ISM) of 414 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25°C ambient. This rating enables reliable transient clamping in power supply inputs and signal lines without permanent parameter shift or junction damage.
1N4741E3/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:
- ±10%
- 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)
1N4741E3/TR13 FAQ
1.How can I place an order for 1N4741E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4741E3/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 1N4741E3/TR13 reliable?
The price and inventory of 1N4741E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4741E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N4741E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4741E3/TR13 transactions.
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4.How is shipping managed for 1N4741E3/TR13?
1N4741E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4741E3/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 1N4741E3/TR13?
For technical support, including 1N4741E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4741E3/TR13 requirements.
6.How does Aetrix verify that 1N4741E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N4741E3/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 1N4741E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N4741E3/TR13?
All 1N4741E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4741E3/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 1N4741E3/TR13 part is unused and in its original packaging.
Return procedure for 1N4741E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4741E3/TR13 Tags
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Diodes Incorporated
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