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Taiwan Semiconductor Corporation BZD27C180P
- Part No.:
- BZD27C180P
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZD27C180P.pdf
- Description:
- DIODE ZENER 179.5V 1W SUB SMA
- Quantity:
- Payment:
- Shipping:
Inventory:4,373
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Product details
Overview
BZD27C180P from Taiwan Semiconductor is a 1 W, 180 V nominal Zener diode in Sub SMA package, with zener voltage tolerance ±5.5% (168–191 V), differential resistance 280 Ω at 5 mA test current, and temperature coefficient 0.09%/°C - used for precision voltage reference and overvoltage protection in industrial power supplies.
For engineers reviewing the BZD27C180P datasheet, BZD27C180P pinout, BZD27C180P application, or BZD27C180P equivalent, key selection criteria include its 130 V reverse voltage rating, 1 μA max reverse leakage at VR = 130 V, 450 Ω max surge resistance, and suitability for high-stability regulation in compact SMT designs.
Technical Context
The BZD27C180P operates as a single-die, unidirectional silicon Zener diode optimized for stable voltage clamping and reference generation under DC and transient conditions. Its design supports low-leakage operation (≤1 μA at 130 V) and maintains thermal stability up to TJ = 175 °C.
It features a Sub SMA surface-mount package with matte tin-plated leads compliant with J-STD-002 solderability, moisture sensitivity level 1 (J-STD-020), and UL 94V-0 molding compound - enabling reliable reflow assembly and long-term reliability in harsh ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ @ IZT | 168–191 V (nominal 179.5 V); defines precise clamping threshold for overvoltage protection circuits |
| IZT | 5 mA; standardized test current ensuring repeatable zener voltage measurement |
| rdif | 280 Ω max; low dynamic impedance enables stable regulation under varying load currents |
| Ptot | 1 W at TA = 25 °C (2.3 W at TL = 73 °C); sets continuous power handling limit on standard PCB pad |
| TJ max | 175 °C; allows operation in high-temperature industrial enclosures without derating |
| RθJA | 88 °C/W; quantifies thermal resistance from junction to ambient on 5 mm × 5 mm Cu pad |
| αZ | 0.09 %/°C; low temperature coefficient minimizes drift across operating temperature range |
Pinout & Package
Package: Sub SMA - low-profile surface-mount case with cathode band polarity marking, 0.019 g weight, UL 94V-0 rated epoxy, and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during forward bias; carries 0.2 A max forward current (VF = 1.2 V) |
| Cathode | Zener breakdown terminal | Connected to higher-potential node during regulation; defines clamping voltage reference point and surge current path |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile Sub SMA package | Enables high-density PCB layouts while maintaining thermal performance (RθJA = 88 °C/W) |
| Zener voltage tolerance ±5.5% | Ensures predictable clamping within 168–191 V window for safety-critical voltage supervision |
| Max reverse leakage 1 μA @ 130 V | Minimizes standby power loss in battery-backed or energy-sensitive systems |
| Non-repetitive peak pulse power 100 W (10/1000 μs) | Provides robust transient suppression against ESD and surge events per IEC 61000-4-5 |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing cost and process complexity |
Applications
| Industrial Power Supply Regulation | Automotive ECU Reference Voltage |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converters for PLC modules. IC Role / Device Role / Timing Role: Zener diode providing precise 179.5 V reference for optocoupler-based feedback loop. Use Value: Tight 5.5% VZ tolerance and 0.09 %/°C αZ ensure output voltage drift <±1.2% over –40 to +125 °C ambient. | Use Scenario: Generating stable bias voltage for analog sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Voltage reference source for ADC reference divider network. Use Value: 1 μA max reverse leakage at 130 V prevents loading error in high-impedance divider chains. |
| Telecom Surge Protection | Renewable Energy Monitoring |
Use Scenario: Clamping induced transients on 48 V DC distribution lines in base station cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp absorbing 10/1000 μs surges up to 100 W peak. Use Value: 100 W non-repetitive pulse rating and 450 Ω surge resistance enable compliance with ITU-T K.20 immunity requirements. | Use Scenario: Protecting microcontroller GPIOs from voltage spikes in solar inverter monitoring boards. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at input of voltage sensing circuitry. Use Value: Sub SMA footprint allows placement directly at connector entry point with minimal trace inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBZ5266BLT1G | 180 V nominal, 1.5 W rating, DO-214AA package, 500 Ω rdif, 10 μA IR @ VR | Higher power but larger footprint and higher leakage; less stable at elevated temperatures | Prefer when board space allows and >1 W continuous dissipation is required |
| BZX84-C180 | 180 V nominal, 300 mW rating, SOT-23 package, 400 Ω rdif, 100 nA IR @ VR | Lower power, smaller size, ultra-low leakage; unsuitable for >300 mW sustained loads | Prefer for portable or low-power sensor nodes where leakage <100 nA is critical |
Compared with SMBZ5266BLT1G and BZX84-C180, the BZD27C180P delivers optimal balance of 1 W power handling, 1 μA leakage, and Sub SMA thermal performance - making it ideal for industrial-grade voltage regulation where reliability under thermal stress is prioritized over minimum footprint or ultra-low leakage.
Availability
BZD27C180P is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU reference voltage generation, and telecom surge protection requiring stable component supply and full traceability.
Supply support for BZD27C180P 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 Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and consumer markets since 1979.
The BZD27 series was designed specifically for high-reliability voltage regulation and transient suppression in space-constrained, thermally demanding applications - emphasizing tight VZ tolerance, low temperature drift, and robust surge capability.
FAQ
What is the zener voltage tolerance of BZD27C180P?
The BZD27C180P has a zener voltage range of 168 V to 191 V at 5 mA test current, corresponding to a ±5.5% tolerance around the nominal 179.5 V value. This specification is verified per Taiwan Semiconductor's AB2103 datasheet revision and applies under standard test conditions (TA = 25 °C). The BZD27C180P maintains this tolerance across its qualified operating temperature range.
Can BZD27C180P be used in place of BZD27C200P?
No - the BZD27C180P (168–191 V) and BZD27C200P (188–212 V) have non-overlapping zener voltage ranges and different surge ratings (100 W vs. 150 W for 10/1000 μs). Substituting BZD27C180P for BZD27C200P would result in premature clamping and potential system malfunction. Always verify voltage thresholds and pulse ratings before cross-replacement. The BZD27C180P must be selected only where its exact 179.5 V nominal value is required.
What is the maximum reverse leakage current for BZD27C180P?
The BZD27C180P specifies a maximum reverse leakage current of 1 μA at VR = 130 V and TA = 25 °C. This value is confirmed in the Electrical Specifications table of the official AB2103 datasheet. Leakage remains below 5 μA up to TJ = 125 °C, supporting low-power standby operation in industrial control systems using the BZD27C180P.
Does BZD27C180P meet RoHS and halogen-free requirements?
Yes - the BZD27C180P is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the Features section of Taiwan Semiconductor's AB2103 datasheet. The Sub SMA package uses lead-free matte tin plating and UL 94V-0 compliant molding compound. These compliance attributes are certified for the BZD27C180P and apply to all units shipped under standard ordering code BZD27C180P.
What is the thermal resistance from junction to ambient for BZD27C180P?
The BZD27C180P has a junction-to-ambient thermal resistance (RθJA) of 88 °C/W when mounted on a 5 mm × 5 mm copper pad, per the Thermal Performance table in the AB2103 datasheet. This value is measured under standardized JEDEC test conditions and directly informs derating calculations for the BZD27C180P in real-world PCB layouts.
BZD27C180P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Voltage - Zener (Nom) (Vz):
- 179.5 V
- Tolerance:
- ±6.41%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 450 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 130 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
BZD27C180P FAQ
1.How can I place an order for BZD27C180P through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27C180P 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 BZD27C180P reliable?
The price and inventory of BZD27C180P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27C180P is usually 5 days.
3.What payment methods are accepted for BZD27C180P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27C180P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27C180P?
BZD27C180P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27C180P 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 BZD27C180P?
For technical support, including BZD27C180P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27C180P requirements.
6.How does Aetrix verify that BZD27C180P is sourced from the original manufacturer or authorized distributors?
All BZD27C180P 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 BZD27C180P meets industry standards.
7.What is the process for return or replacement of BZD27C180P?
All BZD27C180P units undergo pre-shipment inspection (PSI). If there is an issue with BZD27C180P, 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 BZD27C180P part is unused and in its original packaging.
Return procedure for BZD27C180P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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