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Taiwan Semiconductor Corporation 1PGSMC5369
- Part No.:
- 1PGSMC5369
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1PGSMC5369.pdf
- Description:
- DIODE ZENER 51V 5W DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,826
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Product details
Overview
1PGSMC5369 from Taiwan Semiconductor is a surface-mount 51 V nominal Zener diode in DO-214AB (SMC) package, rated for 5 W DC power dissipation at 75°C lead temperature, with 25 Ω typical dynamic impedance at 27 mA test current and 0.5 μA maximum leakage at 38.8 V reverse voltage. It serves as a precision voltage reference and overvoltage clamp in DC/DC converters.
For engineers reviewing the 1PGSMC5369 datasheet, 1PGSMC5369 pinout, 1PGSMC5369 application, or 1PGSMC5369 equivalent, key selection criteria include its 51 V ±5% Zener tolerance, 175°C maximum junction temperature, low-inductance SMC package, and suitability for automated placement in high-reliability power regulation circuits.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across load variations, with specified Zener voltage measured at 27 mA test current (IZT). Its 25 Ω dynamic impedance (ZZT) at IZT ensures tight regulation under transient load changes.
The device features photo-glass passivated chip junction for enhanced reliability, meets J-STD-020 moisture sensitivity level 1, and uses matte tin-plated leads compliant with J-STD-002 solderability requirements - all supporting robust reflow assembly in industrial power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 48.45–53.55 V at 27 mA; provides 51 V ±5% regulated reference |
| Power Dissipation (PD) | 5 W at TL = 75°C; supports sustained clamping in compact SMC footprint |
| Junction Temperature (TJ) | −55°C to +175°C; enables operation in automotive under-hood and industrial ambient environments |
| Zener Impedance (ZZT) | 25 Ω at 27 mA; minimizes output voltage deviation during current transients |
| Leakage Current (IR) | 0.5 μA max at 38.8 V; ensures low standby power loss in voltage-sense paths |
| Thermal Resistance (RθJL) | 20 °C/W; allows efficient heat transfer to PCB copper pad for thermal management |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, single-diode configuration with cathode band polarity marking. Weight: 0.210 g. Molding compound meets UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener operation |
| Cathode | Reverse breakdown terminal | Marked by band; connected to higher-potential node for voltage clamping/reference |
Key Features
| Feature | Design Value |
|---|---|
| Photo-glass passivated junction | Improves long-term stability and humidity resistance in harsh environments |
| Low-inductance construction | Reduces voltage overshoot during fast transient suppression in SMPS |
| J-STD-020 Level 1 moisture sensitivity | Eliminates need for dry-pack or bake-out prior to reflow assembly |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and environmental regulations for global manufacturing |
Applications
| Switching Mode Power Supply (SMPS) | On-board DC/DC Converter |
|---|---|
Use Scenario: Primary-side overvoltage protection and feedback reference in isolated flyback converters. IC Role / Device Role / Timing Role: Zener reference for optocoupler-based feedback loop and clamp for transformer leakage spikes. Use Value: 51 V breakdown voltage sets precise OVP threshold; 5 W rating absorbs repetitive energy surges without degradation. | Use Scenario: Output voltage regulation and transient suppression in point-of-load (POL) converters. IC Role / Device Role / Timing Role: Secondary-side shunt regulator and surge limiter for 48 V input rails. Use Value: 25 Ω ZZT maintains <±1% output deviation under 10–90% load steps; 175°C TJMAX supports high-density thermal design. |
| Lighting Application | Adapter |
Use Scenario: Constant-voltage reference in LED driver IC feedback networks for streetlight and industrial luminaires. IC Role / Device Role / Timing Role: Precision voltage setpoint for current-regulation loop and open-circuit protection clamp. Use Value: ±5% VZ tolerance ensures consistent lumen output across production batches; glass passivation prevents parametric drift in humid enclosures. | Use Scenario: Input-stage overvoltage clamping and auxiliary supply regulation in AC/DC wall adapters. IC Role / Device Role / Timing Role: Transient voltage suppressor on rectified DC bus and reference for bias winding regulation. Use Value: 0.5 μA leakage at 38.8 V minimizes no-load power loss; SMC package enables automated placement on high-volume adapter PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5369B | Same 51 V nominal Zener, but DO-201AD package (larger, axial-lead); 5 W rating; 30 Ω ZZT at 27 mA | Requires through-hole assembly; less suitable for high-density SMT layouts | Select when legacy board design mandates axial-leaded components or higher lead thermal mass is needed |
| SMBJ51A | 51 V unidirectional TVS diode in SMB package; 600 W peak pulse power; 100 VBR min; not a precision Zener | Designed for ESD/surge suppression, not voltage regulation; higher leakage and looser tolerance | Choose only for transient-only protection where regulation accuracy is not required |
Compared with 1N5369B and SMBJ51A, the 1PGSMC5369 offers superior SMT compatibility, tighter 5% Zener tolerance, and lower dynamic impedance - making it optimal for precision voltage reference roles in modern compact power supplies.
Availability
1PGSMC5369 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply with full traceability and volume scalability.
Supply support for 1PGSMC5369 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
Taiwan Semiconductor is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and signal conditioning devices.
The 1PGSMC53xx series was designed specifically for high-reliability, surface-mount Zener regulation in space-constrained power conversion systems - emphasizing low inductance, automated assembly readiness, and extended thermal operating range.
FAQ
What is the nominal Zener voltage and tolerance of the 1PGSMC5369?
The 1PGSMC5369 has a nominal Zener voltage of 51 V with a tolerance of ±5%, corresponding to a minimum of 48.45 V and maximum of 53.55 V at 27 mA test current (IZT). This tolerance is explicitly defined in the electrical specifications table for the 1PGSMC5369 and confirmed by its P369B marking code. The 1PGSMC5369 is intended for applications requiring stable voltage reference within this band.
What is the maximum power dissipation and thermal derating behavior of the 1PGSMC5369?
The 1PGSMC5369 is rated for 5 W DC power dissipation at a lead temperature (TL) of 75°C, with linear derating above that temperature. Its junction-to-lead thermal resistance is 20 °C/W, and it is characterized using a 16 mm × 16 mm copper pad test board. This derating profile ensures safe operation in thermally demanding environments when properly mounted - critical for reliable performance of the 1PGSMC5369 in continuous-clamp applications.
Does the 1PGSMC5369 support automated SMT assembly, and what packaging is available?
Yes, the 1PGSMC5369 is optimized for automated placement with its DO-214AB (SMC) package, photo-glass passivated junction, and matte tin-plated leads compliant with J-STD-002. It is supplied in tape-and-reel format with 3,000 units per reel - enabling high-throughput pick-and-place integration into production lines using standard SMT equipment for the 1PGSMC5369.
What is the Zener impedance and leakage current specification for the 1PGSMC5369?
The 1PGSMC5369 exhibits 25 Ω typical dynamic impedance (ZZT) at 27 mA test current and 200 Ω maximum knee impedance (ZZK) at 1 mA. Its maximum leakage current is 0.5 μA at 38.8 V reverse voltage (VR). These values directly impact regulation accuracy and standby power loss - key parameters verified in the 1PGSMC5369's electrical specifications table and essential for precision reference designs.
Is the 1PGSMC5369 RoHS and halogen-free compliant?
Yes, the 1PGSMC5369 is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. This compliance is explicitly stated in the FEATURES section of the official Taiwan Semiconductor documentation for the 1PGSMC5348–1PGSMC5369 family. These environmental qualifications apply to the 1PGSMC5369 and support its use in globally distributed electronics manufacturing without restriction.
1PGSMC5369 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 51 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 27 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 38.8 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1PGSMC5369 FAQ
1.How can I place an order for 1PGSMC5369 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PGSMC5369 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 1PGSMC5369 reliable?
The price and inventory of 1PGSMC5369 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PGSMC5369 is usually 5 days.
3.What payment methods are accepted for 1PGSMC5369?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PGSMC5369 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PGSMC5369?
1PGSMC5369 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PGSMC5369 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 1PGSMC5369?
For technical support, including 1PGSMC5369 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PGSMC5369 requirements.
6.How does Aetrix verify that 1PGSMC5369 is sourced from the original manufacturer or authorized distributors?
All 1PGSMC5369 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 1PGSMC5369 meets industry standards.
7.What is the process for return or replacement of 1PGSMC5369?
All 1PGSMC5369 units undergo pre-shipment inspection (PSI). If there is an issue with 1PGSMC5369, 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 1PGSMC5369 part is unused and in its original packaging.
Return procedure for 1PGSMC5369:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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