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Microchip Technology 1N4750E3/TR13
- Part No.:
- 1N4750E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4750E3/TR13.pdf
- Description:
- DIODE ZENER 27V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,859
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Product details
Overview
1N4750E3/TR13 from Microsemi is a 27 V, 1 W silicon Zener diode in DO-41 plastic package with ±5% voltage tolerance, 9.5 mA test current, and 35 Ω dynamic impedance at IZT, used for precision voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4750E3/TR13 datasheet, 1N4750E3/TR13 pinout, 1N4750E3/TR13 application, or 1N4750E3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (45 °C/W junction-to-lead), surge current rating (750 mA), RoHS-compliant matte-tin plating, and tape-and-reel packaging per EIA-296.
Technical Context
This discrete Zener diode operates in reverse breakdown to maintain stable 27 V regulation across 0.25–750 mA DC current range, with temperature coefficient near zero at this voltage point. Its DO-41 axial-leaded plastic package provides 105 °C/W junction-to-ambient thermal resistance on FR4 PCBs with defined copper pad geometry.
It features moisture sensitivity Level 1 per J-STD-020B (no dry pack required), ESD insensitivity per MIL-STD-750 Method 1020, and UL94V-0 rated epoxy body. The cathode band denotes polarity for proper biasing in shunt regulation configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±5% at 9.5 mA - defines nominal regulation setpoint with tight production control |
| Power Dissipation | 1.0 W at 25 °C lead temperature - sets maximum continuous DC power handling before derating |
| Dynamic Impedance | 35 Ω at 9.5 mA - determines output voltage variation under load current changes |
| Reverse Leakage Current | 5 μA max at 20.6 V - ensures low standby power loss below regulation threshold |
| Surge Current | 750 mA peak (½-sine, 1/120 s) - supports transient overvoltage clamping capability |
| Thermal Resistance | 45 °C/W junction-to-lead (3/8″ lead length) - enables thermal design with known junction temperature rise |
| Operating Temperature | −65 °C to +150 °C - suitable for industrial and automotive under-hood environments |
Pinout & Package
DO-41 (DO-204AL) plastic axial-leaded 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 | Forward conduction terminal / Zener cathode reference | Connected to lower-potential node; reverse-biased during regulation |
| Cathode | Zener breakdown terminal / regulation output | Banded end; connected to higher-potential node to enable shunt regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Fully compliant with 1N47xxA series standards for interchangeability and testing |
| RoHS-compliant "e3" suffix | Matte-tin termination meets EU RoHS Directive 2011/65/EU and China RoHS |
| Tape-and-reel packaging | TR13 designation indicates EIA-296 standard 13-inch reel for automated assembly |
| Moisture sensitivity Level 1 | No dry pack or baking required prior to SMT/reflow - reduces manufacturing overhead |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - eliminates need for special ESD handling in production |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator ICs or op-amp-based reference circuits. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 27 V setpoint for error amplifier input. Use Value: Maintains ±5% regulation across −65 °C to +150 °C and 0.25–750 mA operating range. | Use Scenario: Protecting downstream circuitry from transient voltage spikes on DC rails. IC Role / Device Role / Timing Role: Passive crowbar element that conducts above 27 V to limit rail excursion. Use Value: Absorbs 750 mA surge pulses without failure, enabling robust system-level ESD immunity. |
| Signal Level Shifting | Current Source Biasing |
Use Scenario: Generating fixed offset voltages for analog sensor signal conditioning stages. IC Role / Device Role / Timing Role: Voltage translation node establishing DC bias point for op-amp inputs. Use Value: Low 35 Ω dynamic impedance minimizes signal distortion under varying load conditions. | Use Scenario: Setting gate/base bias in constant-current source designs using BJTs or MOSFETs. IC Role / Device Role / Timing Role: Stable voltage reference defining emitter/source degeneration resistor potential. Use Value: Tight 5% tolerance and low tempco at 27 V ensure predictable current setting over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4750A | No "e3" RoHS suffix; Sn/Pb termination; same electrical specs and DO-41 package | Not compliant with RoHS; requires Pb-containing solder process | Select when legacy Pb-based assembly is mandated and environmental compliance is not required |
| MMBZ5250BS-7-F | SOT-23 surface-mount package; 27 V ±5%; 225 mW power rating; 30 Ω ZZT | Lower power, smaller footprint; unsuitable for >225 mW continuous dissipation | Select for space-constrained PCBs where thermal budget allows reduced power handling |
Compared with 1N4750A and MMBZ5250BS-7-F, the 1N4750E3/TR13 offers full 1 W power capability in RoHS-compliant tape-and-reel format, making it optimal for through-hole industrial power supplies requiring regulatory compliance and high surge resilience.
Availability
1N4750E3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and test equipment requiring stable component supply with RoHS compliance and tape-and-reel automation support.
Supply support for 1N4750E3/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, RF, and discrete components for aerospace, defense, and industrial markets.
The 1N47xxA series was engineered for ruggedized voltage regulation in mission-critical power systems, emphasizing thermal stability, surge resilience, and long-term parametric consistency under extended temperature cycling.
FAQ
What is the Zener voltage tolerance of the 1N4750E3/TR13?
The 1N4750E3/TR13 has a nominal Zener voltage of 27 V with a tolerance of ±5%, as confirmed by Microsemi's JEDEC-registered 1N4750A specification and the "A" suffix in the base part number. This tolerance applies at 25 °C lead temperature with 9.5 mA test current, and is maintained across the full −65 °C to +150 °C operating range per qualification data.
Does the 1N4750E3/TR13 meet RoHS requirements?
Yes, the 1N4750E3/TR13 meets RoHS Directive 2011/65/EU requirements due to its "e3" suffix, indicating RoHS-compliant matte-tin plating on axial leads. Microsemi explicitly states that "e3" devices are RoHS Compliant, and the part is qualified per J-STD-020B moisture sensitivity Level 1 without dry pack - both critical for environmentally regulated production.
What is the maximum surge current rating for the 1N4750E3/TR13?
The 1N4750E3/TR13 has a maximum non-repetitive reverse surge current (ISM) of 750 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25 °C ambient. This rating enables reliable transient suppression in power rail protection circuits without degradation, provided surge duty cycle remains within thermal limits defined in Figure 1 of the datasheet.
What package type does the 1N4750E3/TR13 use?
The 1N4750E3/TR13 uses the DO-41 (also designated DO-204AL) axial-leaded plastic package, featuring void-free UL94V-0 epoxy body and flexible mounting terminals. Its dimensions and lead configuration comply with JEDEC standards, and the cathode is marked by a visible band on the body - essential for correct orientation in shunt regulation layouts.
How is the 1N4750E3/TR13 supplied for automated assembly?
The "TR13" suffix in 1N4750E3/TR13 indicates EIA-296 standard tape-and-reel packaging on a 13-inch reel, optimized for pick-and-place machinery. This format ensures consistent orientation, mechanical protection, and compatibility with industry-standard feeders - critical for high-yield through-hole insertion in volume manufacturing of industrial and automotive electronics.
1N4750E3/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):
- 27 V
- Tolerance:
- ±10%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 35 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 20.6 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)
1N4750E3/TR13 FAQ
1.How can I place an order for 1N4750E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4750E3/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 1N4750E3/TR13 reliable?
The price and inventory of 1N4750E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4750E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1N4750E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4750E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4750E3/TR13?
1N4750E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4750E3/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 1N4750E3/TR13?
For technical support, including 1N4750E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4750E3/TR13 requirements.
6.How does Aetrix verify that 1N4750E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1N4750E3/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 1N4750E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1N4750E3/TR13?
All 1N4750E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4750E3/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 1N4750E3/TR13 part is unused and in its original packaging.
Return procedure for 1N4750E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4750E3/TR13 Tags
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