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Microchip Technology 1N4753P/TR12
- Part No.:
- 1N4753P/TR12
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4753P/TR12.pdf
- Description:
- DIODE ZENER 36V 1W DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,206
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Product details
Overview
1N4753P/TR12 from Microsemi is a 1.0 W axial-lead silicon Zener diode with nominal Zener voltage of 36 V, ±5% tolerance (A-suffix), 7.0 mA test current (IZT), 50 Ω dynamic impedance at IZT, and maximum reverse current of 5 μA at 27.4 V. It regulates voltage in power supply reference and overvoltage protection circuits across industrial temperature range.
For engineers reviewing the 1N4753P/TR12 datasheet, 1N4753P/TR12 pinout, 1N4753P/TR12 application, or 1N4753P/TR12 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (45 °C/W junction-to-lead), surge current rating (1000 mA), RoHS-compliant "e3" plating option, and DO-41 package compatibility with standard axial-lead PCB layouts.
Technical Context
This device operates in reverse breakdown to maintain stable voltage across varying load currents from 1.0 mA to 700 mA. Its 36 V Zener voltage places it in the mid-range of the 1N47xxAP family, exhibiting a positive temperature coefficient above 5 V, with typical TC near +3.5 mV/°C per Figure 3.
The DO-41 plastic package provides Level 1 moisture sensitivity (no dry pack required), 0.7 g weight, and UL94V-0 epoxy body. Cathode polarity is marked by a band; operation requires cathode-positive bias relative to anode for regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% at 7.0 mA - defines precise regulation point for feedback loops and reference rails |
| Power Dissipation | 1.0 W at TL < 105 °C - limits continuous current to ~27.8 mA at 36 V without derating |
| Dynamic Impedance (ZZT) | 50 Ω at IZT = 7.0 mA - determines output voltage variation under load transients |
| Reverse Leakage Current | 5 μA max at VR = 27.4 V - ensures low quiescent error in high-impedance bias networks |
| Surge Current (ISM) | 1000 mA peak (½-sine, 1/120 s) - supports transient overvoltage clamping in protection circuits |
| Thermal Resistance | 45 °C/W junction-to-lead (3/8″ lead length) - enables thermal design with discrete heatsinking via leads |
| Operating Temperature | –65 °C to +150 °C - suitable for under-hood automotive and industrial control environments |
Pinout & Package
DO-41 (DO-204AL) plastic axial-lead package with cathode indicated by a single color band. Leads are tin-lead or RoHS-compliant matte tin-plated, solderable per MIL-STD-750 Method 2026. Polarity must be observed: cathode (banded end) is positive during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node / ground return | Connected to lower-potential side of circuit; carries full Zener current in regulation mode |
| Cathode | Regulated output node | Banded end; held at stable 36 V above anode when reverse-biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N47xxAP series | Industry-standard footprint and electrical behavior enabling direct replacement in legacy designs |
| Plastic encapsulation (P suffix) | Lower thermal resistance vs. glass-body (G) variants-improves power handling in compact layouts |
| Level 1 moisture sensitivity | No dry-pack requirement per IPC/JEDEC J-STD-020B-reduces handling cost and assembly delay |
| RoHS-compliant "e3" option | Matte tin plating meets EU RoHS Directive 2011/65/EU without lead content compromise on solderability |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020-eliminates need for special ESD handling in production |
Applications
| Power Supply Voltage Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulator ICs or discrete transistor-based regulators. IC Role / Device Role / Timing Role: Provides precise 36 V reference to error amplifier input, setting output voltage via resistor divider. Use Value: Maintains ±5% output accuracy over temperature and line/load variations due to low dynamic impedance and stable TC. | Use Scenario: Protecting downstream 3.3 V or 5 V logic from 24 V rail surges in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Shunts excess current when rail exceeds 36 V, limiting voltage seen by sensitive interface ICs. Use Value: Absorbs 1000 mA surge pulses without failure, preventing latch-up or permanent damage to protected circuitry. |
| DC-DC Converter Feedback Divider | Programmable Threshold Detector |
Use Scenario: Setting regulated output voltage in isolated flyback or forward converters using optocoupler feedback. IC Role / Device Role / Timing Role: Serves as precision Zener in secondary-side voltage sensing network, driving optocoupler LED. Use Value: Enables accurate 36 V output regulation with minimal drift-critical for maintaining isolation barrier integrity. | Use Scenario: Triggering comparator-based shutdown when battery voltage exceeds safe charging threshold (e.g., 36 V LiFePO4 stack). IC Role / Device Role / Timing Role: Acts as stable voltage threshold element feeding non-inverting input of comparator. Use Value: Delivers repeatable 36 V trip point with <5 μA leakage-minimizes false triggers in low-power monitoring circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4753A | No "P" suffix indicates glass-body construction; higher thermal resistance (≈60 °C/W) and moisture sensitivity Level 2a | Less suitable for high-reliability, high-volume automated assembly where plastic robustness and dry-pack avoidance matter | Select 1N4753P/TR12 when DO-41 plastic reliability, RoHS compliance, and lower thermal resistance are required |
| MMSZ4705T1G | Surface-mount SOD-123 package; 36 V, 500 mW rating; 10 Ω ZZT; tighter 5% tolerance but lower surge capability (200 mA) | Designed for space-constrained PCBs; not drop-in compatible due to package and power rating mismatch | Choose MMSZ4705T1G only for new SMT designs where board area is critical and 1 W dissipation is unnecessary |
Compared with 1N4753A and MMSZ4705T1G, the 1N4753P/TR12 uniquely balances 1 W power handling, DO-41 mechanical robustness, Level 1 moisture immunity, and RoHS compliance-making it optimal for industrial power supplies requiring long-term stability and ease of through-hole assembly.
Availability
1N4753P/TR12 is available at Aetrix Electronics and suitable for industrial power supplies, programmable logic controller (PLC) I/O protection, DC-DC converter feedback networks, and battery management threshold detection requiring stable component supply and long-lifecycle support.
Supply support for 1N4753P/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 company specializing in high-reliability analog, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The 1N47xxAP series was designed for general-purpose voltage regulation in ruggedized power systems-emphasizing JEDEC standardization, thermal performance, and qualification for extended temperature and reliability requirements.
FAQ
What is the Zener voltage tolerance of the 1N4753P/TR12?
The 1N4753P/TR12 has a nominal Zener voltage of 36 V with ±5% tolerance, indicated by the "A" suffix in its part number per JEDEC registration. This means the actual measured VZ falls between 34.2 V and 37.8 V at 7.0 mA test current and 25 °C lead temperature. The tolerance remains valid across the full operating temperature range of –65 °C to +150 °C.
Is the 1N4753P/TR12 RoHS compliant?
Yes, the 1N4753P/TR12 is RoHS compliant. The "e3" designation in Microsemi's official documentation confirms matte tin plating that meets EU RoHS Directive 2011/65/EU. Its terminals are annealed matte tin per MIL-STD-750 Method 2026, ensuring solderability without lead content. No exemptions apply-the device is fully compliant out-of-box.
What does the "TR12" suffix mean in 1N4753P/TR12?
The "TR12" suffix indicates tape-and-reel packaging per EIA-296 standard, with 12,000 units per reel. This format supports automated pick-and-place assembly and is distinct from bulk or ammo-pack options. The base device remains electrically and mechanically identical to the non-TR variant-only the packaging differs. Reel dimensions and orientation comply with industry-standard feeder requirements.
Can the 1N4753P/TR12 replace a 1N4753A in existing designs?
Yes, the 1N4753P/TR12 can replace 1N4753A in most cases, but with important distinctions: both share identical electrical specs (36 V, ±5%, 1 W), but the "P" denotes plastic DO-41 construction versus glass-body for the "A" variant. The plastic version offers lower thermal resistance (45 °C/W vs. ~60 °C/W) and Level 1 moisture sensitivity-so no dry pack is needed. Layout remains identical.
What is the maximum surge current rating for the 1N4753P/TR12?
The 1N4753P/TR12 has a maximum non-repetitive surge current (ISM) of 1000 mA, measured using a ½-sine wave pulse of 1/120 second duration at 25 °C ambient. This rating applies only to short-duration transients-not continuous operation. Exceeding this value risks irreversible junction damage, so external current limiting (e.g., series resistor) is required in clamp applications.
1N4753P/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):
- 36 V
- Tolerance:
- ±10%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 50 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 27.4 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)
1N4753P/TR12 FAQ
1.How can I place an order for 1N4753P/TR12 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4753P/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 1N4753P/TR12 reliable?
The price and inventory of 1N4753P/TR12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4753P/TR12 is usually 5 days.
3.What payment methods are accepted for 1N4753P/TR12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4753P/TR12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4753P/TR12?
1N4753P/TR12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4753P/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 1N4753P/TR12?
For technical support, including 1N4753P/TR12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4753P/TR12 requirements.
6.How does Aetrix verify that 1N4753P/TR12 is sourced from the original manufacturer or authorized distributors?
All 1N4753P/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 1N4753P/TR12 meets industry standards.
7.What is the process for return or replacement of 1N4753P/TR12?
All 1N4753P/TR12 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4753P/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 1N4753P/TR12 part is unused and in its original packaging.
Return procedure for 1N4753P/TR12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4753P/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
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BZX84C3V3LT1G
onsemi
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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