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Microchip Technology 1N4735PE3/TR12
- Part No.:
- 1N4735PE3/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4735PE3/TR12.pdf
- Description:
- DIODE ZENER 6.2V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,194
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Product details
Overview
1N4735PE3/TR12 from Microsemi is a 1.0 W, 6.2 V ±5% axial-lead Zener diode in DO-41 (DO-204AL) plastic package, designed for precision voltage regulation in power supply reference, overvoltage protection, and signal clamping circuits across industrial and embedded systems.
For engineers reviewing the 1N4735PE3/TR12 datasheet, 1N4735PE3/TR12 pinout, 1N4735PE3/TR12 application, or 1N4735PE3/TR12 equivalent, key selection factors include its 6.2 V nominal Zener voltage at 41 mA test current, 2 Ω dynamic impedance, 10 µA reverse leakage at 4.96 V, 146 mA maximum regulator current at 50°C, and RoHS-compliant matte-tin plating with tape-and-reel packaging (TR12).
Technical Context
This Zener operates in reverse breakdown to maintain stable output voltage under varying load and temperature conditions. Its 6.2 V nominal Zener voltage exhibits a near-zero temperature coefficient (~0 mV/°C), making it ideal for low-drift reference applications where thermal stability is critical.
The device delivers 1.0 W steady-state power dissipation at lead temperature <105°C (3/8" from body) or ambient <45°C on FR4 board, with thermal resistance of 45°C/W junction-to-lead and 105°C/W junction-to-ambient under defined PCB layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Vz) | 6.2 V ±5% at 41 mA - defines precise regulation point for feedback loops and reference rails |
| Dynamic Impedance (Zzt) | 2 Ω at 41 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (Ir) | 10 µA max at 4.96 V - guarantees low standby power loss in high-impedance bias networks |
| Max Regulator Current (Izm) | 146 mA at TA = 50°C - sets upper limit for sustained regulation without thermal runaway |
| Power Dissipation | 1.0 W at TL < 105°C - supports compact designs with minimal heatsinking in linear regulators |
| Forward Voltage (Vf) | 1.2 V max at 200 mA - enables use as polarity-sensitive clamp or series diode in dual-function circuits |
| Operating Temperature | –65°C to +150°C - validated for extended-range industrial and automotive under-hood environments |
Pinout & Package
Package: DO-41 (JEDEC DO-204AL), axial-lead plastic encapsulated case with cathode band marking; RoHS-compliant matte-tin plating; weight 0.7 g; moisture sensitivity level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener mode | Enables standard diode conduction path; must be held negative relative to cathode for regulation |
| Cathode | Current exit terminal in forward bias; banded end, connected to higher-potential node in Zener mode | Applied positive voltage here relative to anode to activate reverse breakdown and regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 5% tolerance | Guarantees Vz within ±5% of 6.2 V at 41 mA, enabling predictable design margins without binning |
| Near-zero tempco | Temperature coefficient ~0 mV/°C near 6.2 V minimizes drift in precision references over –65°C to +150°C |
| Low dynamic impedance | 2 Ω at IZT ensures <13 mV output shift per 25 mA load change-critical for stable feedback sensing |
| RoHS-compliant e3 suffix | Matte-tin plating meets JEDEC J-STD-020B Level 1 moisture classification and eliminates Pb-based solder concerns |
| Tape-and-reel TR12 packaging | Standard EIA-296 format supports automated SMT placement despite axial-lead form factor |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulators or switching converter error amplifiers. IC Role / Device Role / Timing Role: Zener reference element providing fixed 6.2 V基准 for error comparator input. Use Value: 2 Ω dynamic impedance and ±5% Vz tolerance ensure <±31 mV absolute reference accuracy under 100 mA load variation. |
Use Scenario: Clamping transient surges on 5 V logic rails or sensor inputs. IC Role / Device Role / Timing Role: Shunt protection device diverting excess current when voltage exceeds 6.2 V. Use Value: 146 mA Izm rating allows safe absorption of 910 mW surge energy without degradation at 50°C ambient. |
| Signal Level Shifting | Current Source Biasing |
Use Scenario: Generating stable offset voltages for op-amp input stages or ADC reference buffers. IC Role / Device Role / Timing Role: Precision voltage source establishing DC bias point for analog signal conditioning. Use Value: Near-zero tempco and 10 µA Ir at 4.96 V prevent thermal drift and loading errors in high-impedance bias networks. |
Use Scenario: Setting constant current for LED drivers or transistor bias networks via series resistor. IC Role / Device Role / Timing Role: Stable voltage reference defining current through external resistor (e.g., 1 kΩ → 6.2 mA). Use Value: 1.0 W power rating supports >6 mA continuous current with <1% regulation error across full operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | No "P" (plastic) or "e3" (RoHS) suffix; glass-body construction; Sn/Pb plating; bulk packaging | Higher thermal resistance (junction-to-ambient); not moisture-rated for reflow; incompatible with Pb-free assembly | Select only for legacy non-RoHS designs requiring glass-body reliability or MIL-PRF-19500 screening prefixes |
| BZX55C6V2 | Same 6.2 V ±5%, but 500 mW rating; TO-92 package; 10 Ω Zzt; 100 µA Ir at 4.96 V | Lower power handling limits use in >300 mW regulation; higher impedance increases load regulation error | Choose for cost-sensitive, low-power applications where 146 mA Izm and 2 Ω Zzt are not required |
Compared with 1N4735A and BZX55C6V2, the 1N4735PE3/TR12 offers superior thermal performance (45°C/W vs. ~120°C/W), tighter regulation (2 Ω vs. 10 Ω), lower leakage (10 µA vs. 100 µA), and RoHS-compliant tape-and-reel readiness-making it optimal for modern industrial power management.
Availability
1N4735PE3/TR12 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and signal level shifting applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for 1N4735PE3/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 manufacturer specializing in high-reliability analog, RF, and timing solutions for aerospace, defense, and industrial markets.
The 1N4735PE3/TR12 belongs to Microsemi's legacy 1N47xxAP Zener family-engineered for robust voltage regulation in harsh-environment power systems where thermal stability, low impedance, and long-term parametric consistency are essential.
FAQ
What is the Zener voltage tolerance of the 1N4735PE3/TR12?
The 1N4735PE3/TR12 has a nominal Zener voltage of 6.2 V with a ±5% tolerance, as indicated by the "A" suffix in its base part number (1N4735A). This tolerance is guaranteed at 41 mA test current and 25°C lead temperature, ensuring predictable regulation across production lots without binning.
Does the 1N4735PE3/TR12 support lead-free soldering processes?
Yes, the 1N4735PE3/TR12 features RoHS-compliant matte-tin plating and is rated for soldering at 260°C for 10 seconds, fully compatible with standard lead-free reflow profiles. The "e3" suffix explicitly denotes this RoHS compliance, and its moisture sensitivity level 1 eliminates dry-pack requirements before assembly.
What is the maximum continuous current the 1N4735PE3/TR12 can regulate?
The 1N4735PE3/TR12 supports a maximum regulator current (Izm) of 146 mA at 50°C ambient temperature. At higher temperatures, derating applies: power dissipation drops linearly to zero at 150°C junction temperature, per the 45°C/W junction-to-lead thermal resistance specification.
How does the 1N4735PE3/TR12 differ from the glass-body 1N4735A?
The 1N4735PE3/TR12 uses a plastic DO-41 package with lower thermal resistance (45°C/W vs. ~120°C/W for glass), RoHS-compliant matte-tin plating, and tape-and-reel (TR12) packaging. The glass-body 1N4735A lacks these features and is not rated for moisture exposure or Pb-free assembly.
Can the 1N4735PE3/TR12 be used in series or parallel configurations?
Series connection is acceptable for higher-voltage references, but parallel use is strongly discouraged due to mismatched Zener impedances and thermal runaway risk. For multi-Zener applications, the 1N4735PE3/TR12 should be individually ballasted with series resistors to ensure current sharing stability.
1N4735PE3/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):
- 6.2 V
- Tolerance:
- ±10%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 2 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 3 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)
1N4735PE3/TR12 FAQ
1.How can I place an order for 1N4735PE3/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4735PE3/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 1N4735PE3/TR12 reliable?
The price and inventory of 1N4735PE3/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4735PE3/TR12 is usually 5 days.
3.What payment methods are accepted for 1N4735PE3/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4735PE3/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4735PE3/TR12?
1N4735PE3/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4735PE3/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 1N4735PE3/TR12?
For technical support, including 1N4735PE3/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4735PE3/TR12 requirements.
6.How does Aetrix verify that 1N4735PE3/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N4735PE3/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 1N4735PE3/TR12 meets industry standards.
7.What is the process for return or replacement of 1N4735PE3/TR12?
All 1N4735PE3/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4735PE3/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 1N4735PE3/TR12 part is unused and in its original packaging.
Return procedure for 1N4735PE3/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4735PE3/TR12 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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