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Taiwan Semiconductor Corporation BZD27C11PW
- Part No.:
- BZD27C11PW
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
BZD27C11PW.pdf
- Description:
- DIODE ZENER 11V 1W SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:3,873
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Product details
Overview
BZD27C11PW from Taiwan Semiconductor is a 11 V, 1 W surface-mount Zener diode in SOD-123W package, rated for 50 mA test current (IZT), 15.7 V clamping voltage (Vc) at 9.6 A surge current, and ±0.05–0.10 %/°C temperature coefficient - used for precision voltage regulation and overvoltage protection in DC power rails.
For engineers reviewing the BZD27C11PW datasheet, BZD27C11PW pinout, BZD27C11PW application, or BZD27C11PW equivalent, this part supports stable reference generation, transient suppression in low-power industrial sensors, and compact voltage-clamp circuits where thermal resistance (RθJA = 85 °C/W) and moisture sensitivity level 1 compliance are critical selection criteria.
Technical Context
The BZD27C11PW operates as a single-die silicon Zener diode with sharp reverse breakdown at nominal 11 V, specified under 50 mA test current and 25 °C ambient. Its 1 W steady-state power rating is derated linearly above 25 °C, supported by RθJA = 85 °C/W and RθJL = 22 °C/W.
It delivers 15.7 V clamping voltage under 10/1000 µs surge waveform at 9.6 A peak current, with leakage current ≤4.0 µA at 8.2 V and dynamic impedance ZZT ≤7 Ω at IZT - enabling fast response and low noise in reference and protection roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage (VZ) | 10.5–11.6 V at 50 mA - tight 5% tolerance enables accurate 11 V rail stabilization without external trimming. |
| Power dissipation (Ptot) | 1.0 W at 25 °C (derated to 0 W at 175 °C) - defines maximum continuous heat load on PCB copper pad (5 mm × 5 mm). |
| Clamping voltage (Vc) | 15.7 V at 9.6 A, 10/1000 µs - limits transient overvoltage to safe levels for downstream 12–15 V logic or analog circuitry. |
| Zener impedance (ZZT) | ≤7 Ω at 50 mA - ensures minimal output voltage shift under varying load current in reference applications. |
| Leakage current (IR) | ≤4.0 µA at 8.2 V - guarantees negligible standby power loss and high DC accuracy in battery-powered systems. |
| Temp. coeff. (αVZ) | +0.05 to +0.10 %/°C - predictable positive drift allows compensation in temperature-critical references. |
| Junction temp. range | −55 to +175 °C - supports operation in automotive engine compartments and industrial motor drives. |
Pinout & Package
Package: SOD-123W - low-profile surface-mount case with matte tin-plated leads, UL 94V-0 molding compound, polarity indicated by cathode band, weight ≈0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration; carries forward current up to 0.2 A. |
| Cathode | Zener breakdown terminal | Connected to higher-potential node; sustains precise 11 V reverse breakdown and absorbs surge energy during transients. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD package | SOD-123W footprint saves board space vs. DO-35 or SOD-123, compatible with standard reflow profiles (MSL Level 1). |
| High surge capability | 150 W non-repetitive peak pulse power (10/1000 µs) enables robust ESD and lightning transient suppression. |
| Stable Zener voltage | ±0.05–0.10 %/°C TC and ≤7 Ω dynamic impedance ensure <±20 mV drift over −40 to +85 °C operating range. |
| Low leakage & high reliability | ≤4.0 µA IR at 8.2 V and JESD201 Class 2 whisker resistance support long-term stability in sealed industrial modules. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS - suitable for consumer, medical, and green electronics manufacturing. |
Applications
| Industrial Sensor Power Rail | USB Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Regulating 11 V supply for MEMS pressure sensor signal conditioning circuit in factory automation PLC modules. IC Role / Device Role / Timing Role: Zener reference diode providing stable bias voltage to op-amp input stage and ADC reference buffer. Use Value: Tight 10.5–11.6 V tolerance and ≤7 Ω impedance maintain <0.1% reference error across temperature and load variations. |
Use Scenario: Clamping induced surges on USB VBUS line during hot-plug events in embedded host controllers. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting VBUS to ≤15.7 V during 10/1000 µs ESD-like pulses. Use Value: 150 W peak pulse rating and 9.6 A surge current handling prevent latch-up or damage to USB PHY ICs. |
| Programmable Logic Controller I/O Module | Automotive Body Control Unit Reference |
|
Use Scenario: Providing 11 V reference for analog input scaling in 24 V DC-powered PLC analog input cards. IC Role / Device Role / Timing Role: Precision Zener shunt regulator stabilizing DAC output buffer supply under variable load conditions. Use Value: Low 4.0 µA leakage at 8.2 V avoids loading of high-impedance sensor inputs and preserves measurement accuracy. |
Use Scenario: Generating stable 11 V reference for LIN bus transceiver biasing in under-hood BCM modules. IC Role / Device Role / Timing Role: Temperature-stable voltage reference ensuring consistent LIN signal amplitude across −40 to +125 °C. Use Value: +0.05 to +0.10 %/°C TC and 175 °C max junction temperature enable reliable operation near engine heat sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52C11S | Same 11 V nominal Zener, SOD-323 package (smaller footprint), 500 mW Ptot, higher ZZT (≤20 Ω). | Limited to lower-power signal-level clamping; unsuitable for 1 W continuous regulation or high-surge scenarios. | Select BZT52C11S only when board space is constrained and thermal load is <0.5 W. |
| Vishay PLZ11 | 11 V Zener, DO-35 through-hole package, 1 W Ptot, 1000 h life test, but no MSL Level 1 rating. | Requires wave soldering; incompatible with automated SMT lines and moisture-sensitive assembly environments. | Choose PLZ11 only for legacy through-hole designs or high-reliability MIL-spec programs requiring long-term burn-in data. |
Compared with BZD27C11PW, BZT52C11S trades thermal robustness and surge capacity for miniaturization, while PLZ11 sacrifices SMT compatibility and moisture resilience for proven field longevity - making BZD27C11PW optimal for modern high-volume industrial SMT production requiring both 1 W regulation and 150 W transient suppression.
Availability
BZD27C11PW is available at Aetrix Electronics and suitable for industrial sensor power rails, USB port protection circuits, PLC analog input modules, and automotive body control unit references requiring stable component supply and full traceability.
Supply support for BZD27C11PW 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components since 1979.
The BZD27C series is designed for high-reliability voltage regulation and transient suppression in industrial, automotive, and consumer power systems - emphasizing thermal performance, surge robustness, and SMT manufacturability.
FAQ
What is the Zener voltage tolerance of BZD27C11PW?
The BZD27C11PW has a Zener voltage range of 10.5 V to 11.6 V at 50 mA test current (IZT), corresponding to a ±5% tolerance around the nominal 11 V rating. This tight tolerance is confirmed in the Electrical Specifications table (Version D2203, Page 3) and ensures predictable regulation behavior in precision reference applications.
Can BZD27C11PW be used for transient voltage suppression?
Yes, BZD27C11PW is rated for 150 W non-repetitive peak pulse power (10/1000 µs waveform) and clamps at 15.7 V under 9.6 A surge current. These values are explicitly specified in the Absolute Maximum Ratings table (Page 1) and make it suitable for ESD and surge protection in low-energy interfaces like sensor inputs or USB VBUS lines.
What is the thermal resistance of BZD27C11PW and how does it affect layout?
BZD27C11PW has a junction-to-ambient thermal resistance (RθJA) of 85 °C/W when mounted on a 5 mm × 5 mm Cu pad. This value - listed in the Thermal Performance table (Page 2) - means that at 1 W dissipation, junction temperature rises ~85 °C above ambient; thus, adequate copper area and airflow are essential to keep TJ ≤175 °C.
Is BZD27C11PW RoHS and halogen-free compliant?
Yes, BZD27C11PW meets EU RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, as stated in the FEATURES section (Page 1). It also carries moisture sensitivity level 1 (MSL-1) per J-STD-020, allowing unlimited floor life before reflow soldering.
What is the leakage current specification for BZD27C11PW at 8.2 V?
The leakage current (IR) of BZD27C11PW is guaranteed ≤4.0 µA at 8.2 V reverse voltage, as documented in the Electrical Specifications table (Version D2203, Page 4). This low leakage supports high-impedance reference circuits and minimizes standby power loss in battery-operated systems.
BZD27C11PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 4 µA @ 8.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
BZD27C11PW FAQ
1.How can I place an order for BZD27C11PW through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27C11PW 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 BZD27C11PW reliable?
The price and inventory of BZD27C11PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27C11PW is usually 5 days.
3.What payment methods are accepted for BZD27C11PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27C11PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27C11PW?
BZD27C11PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27C11PW 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 BZD27C11PW?
For technical support, including BZD27C11PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27C11PW requirements.
6.How does Aetrix verify that BZD27C11PW is sourced from the original manufacturer or authorized distributors?
All BZD27C11PW 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 BZD27C11PW meets industry standards.
7.What is the process for return or replacement of BZD27C11PW?
All BZD27C11PW units undergo pre-shipment inspection (PSI). If there is an issue with BZD27C11PW, 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 BZD27C11PW part is unused and in its original packaging.
Return procedure for BZD27C11PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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