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Microchip Technology 1N4750PE3/TR8
- Part No.:
- 1N4750PE3/TR8
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4750PE3/TR8.pdf
- Description:
- DIODE ZENER 27V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,413
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Product details
Overview
1N4750PE3/TR8 from Microsemi is a 1.0 W, 27 V ±5% axial-lead Zener diode in DO-41 (DO-204AL) plastic package, rated for -65°C to +150°C operation, with 9.5 mA test current, 35 Ω dynamic impedance at IZT, and 5 μA reverse leakage at 20.6 V. It delivers stable voltage regulation in power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N4750PE3/TR8 datasheet, 1N4750PE3/TR8 pinout, 1N4750PE3/TR8 application, or 1N4750PE3/TR8 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (45°C/W junction-to-lead), surge current rating (750 mA), RoHS compliance (e3 suffix), and tape-and-reel packaging (TR8 suffix).
Technical Context
This device operates in reverse breakdown to maintain a stable 27 V reference across a wide current range (0.25 mA to 750 mA). Its 5% voltage tolerance and sharp knee characteristic-verified by dual-point Zener impedance measurement per MicroNote 202-ensure predictable regulation under varying load and temperature conditions.
The DO-41 plastic package provides Level 1 moisture sensitivity (IPC/JEDEC J-STD-020B), eliminating dry-pack requirements, and achieves 45°C/W junction-to-lead thermal resistance at 10 mm lead length-critical for sustained 1.0 W dissipation without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±5% at 9.5 mA - defines precise regulation point for feedback loops and reference rails |
| Power Dissipation | 1.0 W at TL < 105°C - supports continuous operation in compact linear regulators |
| Dynamic Impedance (ZZT) | 35 Ω at 9.5 mA - ensures low output voltage variation under load transients |
| Reverse Leakage (IR) | 5 μA max at 20.6 V - minimizes standby current in battery-backed circuits |
| Surge Current (ISM) | 750 mA (½-sine, 1/120 s) - withstands brief overvoltage events without degradation |
| Thermal Resistance | 45°C/W junction-to-lead - enables reliable heat transfer through axial leads on standard PCBs |
| Operating Temperature | -65°C to +150°C - suitable for automotive under-hood and industrial control environments |
Pinout & Package
DO-41 (DO-204AL) plastic package: axial-leaded, void-free thermosetting epoxy body (UL94V-0), cathode indicated by band; banded end is positive during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to circuit ground or lower-potential node when used as shunt regulator |
| Cathode | Zener breakdown terminal | Banded end; connected to unregulated input rail to clamp voltage at 27 V |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Fully compliant with 1N4750A specification-ensures interchangeability across qualified suppliers |
| RoHS-compliant plating | Matte-tin termination (e3 suffix) meets lead-free soldering standards without compromising solderability |
| Tape-and-reel packaging | TR8 suffix denotes EIA-296 standard reel-enables automated SMT placement despite axial form factor |
| ESD robustness | Nonsensitive per MIL-STD-750 Method 1020-reduces handling risk in assembly lines |
| Moisture sensitivity | Level 1 per J-STD-020B-no dry-pack or bake-out required before assembly |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in discrete linear regulators or op-amp reference circuits. IC Role / Device Role / Timing Role: Shunt voltage reference providing 27 V precision node for error amplifier comparison. Use Value: Maintains ±5% regulation across 0.25–750 mA load range, minimizing output drift due to line/load changes. | Use Scenario: Protecting downstream ICs from transient voltage spikes on 24 V industrial bus lines. IC Role / Device Role / Timing Role: Passive crowbar element clamping rail voltage to 27 V during surges. Use Value: Absorbs 750 mA surge pulses without failure, preserving integrity of 3.3 V/5 V logic supplies. |
| Temperature-Stable Biasing | Calibration Reference |
Use Scenario: Setting bias points in analog sensor signal conditioning stages operating from -40°C to +85°C. IC Role / Device Role / Timing Role: Low-drift Zener reference compensating for amplifier offset drift. Use Value: 27 V nominal with known tempco curve (Fig. 3) enables predictable compensation in precision front-ends. | Use Scenario: Providing traceable voltage standard in handheld multimeter calibration circuits. IC Role / Device Role / Timing Role: Primary reference source against which ADC full-scale is adjusted. Use Value: 5% tolerance and JEDEC registration ensure repeatability across production batches and field recalibrations. |
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 or TR8 suffix - Sn/Pb termination, bulk packaging | Not RoHS-compliant; unsuitable for lead-free assembly | Select only for legacy Sn/Pb reflow processes or non-RoHS exempt applications |
| MMSZ5250ET1G | SOD-123 surface-mount package, 200 mW rating, same 27 V ±5% | Lower power handling; requires PCB layout change and derating for 1 W use | Choose for space-constrained designs where 27 V reference is needed but full 1 W dissipation is not required |
Compared with 1N4750A and MMSZ5250ET1G, the 1N4750PE3/TR8 uniquely combines 1.0 W dissipation, RoHS-compliant matte-tin plating, and EIA-296 tape-and-reel-making it optimal for high-reliability, automated, lead-free manufacturing of industrial power modules.
Availability
1N4750PE3/TR8 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and test equipment requiring stable component supply with full RoHS compliance and automated placement support.
Supply support for 1N4750PE3/TR8 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 ruggedized voltage regulation in harsh-environment power systems where long-term stability, wide temperature operation, and JEDEC-standard interchangeability are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N4750PE3/TR8?
The 1N4750PE3/TR8 has a Zener voltage tolerance of ±5%, as indicated by the "A" suffix in its base part number (1N4750A). This means its nominal 27 V regulation point falls between 25.65 V and 28.35 V at 9.5 mA test current and 25°C lead temperature.
Does the 1N4750PE3/TR8 support lead-free soldering processes?
Yes, the 1N4750PE3/TR8 supports lead-free soldering: the "e3" suffix confirms RoHS-compliant annealed matte-tin plating, qualified for 260°C for 10 seconds per MIL-STD-750 Method 2026-fully compatible with standard Pb-free reflow profiles.
What does the "TR8" suffix mean in 1N4750PE3/TR8?
"TR8" indicates EIA-296 standard tape-and-reel packaging with 8 mm carrier tape width and 1000 units per reel. This format enables automated pick-and-place assembly, distinguishing it from bulk or ammo-pack variants of the same device.
Can the 1N4750PE3/TR8 replace a glass-body 1N4750G in existing designs?
The 1N4750PE3/TR8 can replace 1N4750G electrically and mechanically in most cases, but thermal performance differs: the plastic "P" version has 45°C/W junction-to-lead vs. ~60°C/W for glass-body variants. Layouts relying on glass-body thermal paths may require verification at full 1 W load.
What is the maximum steady-state current the 1N4750PE3/TR8 can regulate continuously?
At 25°C ambient on FR4 board with specified copper pads, the 1N4750PE3/TR8 supports up to 37 mA continuous Zener current before exceeding its 1.0 W power limit. Derating applies above 45°C ambient-see Figure 1 in the Microsemi datasheet for exact thermal curves.
1N4750PE3/TR8 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)
1N4750PE3/TR8 FAQ
1.How can I place an order for 1N4750PE3/TR8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4750PE3/TR8 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 1N4750PE3/TR8 reliable?
The price and inventory of 1N4750PE3/TR8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4750PE3/TR8 is usually 5 days.
3.What payment methods are accepted for 1N4750PE3/TR8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4750PE3/TR8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4750PE3/TR8?
1N4750PE3/TR8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4750PE3/TR8 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 1N4750PE3/TR8?
For technical support, including 1N4750PE3/TR8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4750PE3/TR8 requirements.
6.How does Aetrix verify that 1N4750PE3/TR8 is sourced from the original manufacturer or authorized distributors?
All 1N4750PE3/TR8 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 1N4750PE3/TR8 meets industry standards.
7.What is the process for return or replacement of 1N4750PE3/TR8?
All 1N4750PE3/TR8 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4750PE3/TR8, 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 1N4750PE3/TR8 part is unused and in its original packaging.
Return procedure for 1N4750PE3/TR8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4750PE3/TR8 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
onsemi
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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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