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Taiwan Semiconductor Corporation BZD27C75PWH
- Part No.:
- BZD27C75PWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
BZD27C75PWH.pdf
- Description:
- DIODE ZENER 75V 1W SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:6,936
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Product details
Overview
BZD27C75PWH from Taiwan Semiconductor is a 1 W, 75 V ±3.8 V (min–max) AEC-Q101-qualified silicon Zener diode in SOD-123W package, designed for precision voltage regulation and transient overvoltage protection in automotive power rails and industrial reference circuits.
For engineers reviewing the BZD27C75PWH datasheet, BZD27C75PWH pinout, BZD27C75PWH application, or BZD27C75PWH equivalent, key selection criteria include its 10 mA zener test current, 103.5 V clamping voltage under 10/1000 µs surge, 100 Ω dynamic impedance at IZT, and -55°C to +175°C operating junction temperature range.
Technical Context
The BZD27C75PWH operates as a single-die, unidirectional Zener diode with cathode-band polarity indication and low-leakage design (IR ≤ 1.5 µA at VR = 60 V). Its thermal performance is defined by RθJA = 85°C/W and RθJL = 22°C/W, enabling stable regulation under pulsed surge conditions up to 100 W (10/1000 µs) for parts ≥110 V and 150 W for lower-voltage variants - though BZD27C75PWH itself is rated for 100 W per specification table.
It meets JESD201 Class 2 whisker resistance, J-STD-020 Moisture Sensitivity Level 1, and UL 94V-0 flammability requirements. The matte tin-plated terminals ensure solderability per J-STD-002, and the device is RoHS-compliant and halogen-free per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 71.3 V (min) to 78.8 V (max) at IZT = 10 mA - defines tight 5% tolerance band for stable reference generation |
| Power Dissipation Ptot | 1.0 W at TA = 25°C on 5 mm × 5 mm Cu pad - sets continuous thermal limit for PCB layout planning |
| Clamping Voltage VC | 103.5 V at IRSM (10/1000 µs waveform) - determines peak transient suppression capability in surge protection |
| Zener Impedance ZZT | 100 Ω at IZT = 10 mA - indicates regulation stiffness under small-signal load variation |
| Junction Temperature Range | -55°C to +175°C - enables operation in under-hood automotive and high-temp industrial environments |
| Leakage Current IR | ≤1.5 µA at VR = 60 V - ensures minimal parasitic loading in high-impedance reference nodes |
| Temperature Coefficient αVZ | 0.09% / °C to 0.13% / °C - quantifies drift of VZ over temperature for precision designs |
Pinout & Package
Package: SOD-123W - low-profile surface-mount case with 0.016 g mass, UL 94V-0 molding compound, and cathode band polarity marking.
| 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 | Marked by band; connected to higher-potential rail during regulation; sinks zener current and absorbs surge energy |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Low-profile SOD-123W package | Enables high-density PCB layouts while maintaining 2.3 W pulsed power dissipation at TL = 80°C |
| 100 W non-repetitive peak pulse rating | Supports IEC 61000-4-5 surge immunity compliance for 10/1000 µs transients in 75 V systems |
| Moisture Sensitivity Level 1 | Eliminates bake requirements before reflow, reducing manufacturing complexity and cost |
| Halogen-free & RoHS compliant | Meets global environmental regulations without compromising thermal or electrical performance |
Applications
| Automotive Power Rail Protection | Industrial Voltage Reference |
|---|---|
Use Scenario: Protecting 72 V battery management system (BMS) monitoring ICs from load-dump transients. IC Role / Device Role / Timing Role: Zener clamp placed across supply input to shunt surge energy before it reaches downstream regulators. Use Value: Clamps 10/1000 µs surges to ≤103.5 V, staying within absolute maximum ratings of 75 V-rated analog front-end ICs. |
Use Scenario: Providing stable 75 V reference for high-voltage ADC calibration in motor drive control boards. IC Role / Device Role / Timing Role: Precision Zener used in feedback divider network of isolated DC-DC converter. Use Value: 5% VZ tolerance and 0.11% / °C tempco enable <±0.5% reference accuracy over -40°C to +125°C ambient. |
| Telecom DC Power Supervision | Renewable Energy String Monitoring |
Use Scenario: Overvoltage detection in 48 V–60 V telecom rectifier outputs feeding distributed power architecture. IC Role / Device Role / Timing Role: Zener-based comparator threshold element triggering shutdown during brown-in events. Use Value: Low leakage (<1.5 µA) prevents false triggering; 175°C TJMAX supports operation near hot power components. |
Use Scenario: Voltage clamping in photovoltaic string monitoring units exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression device parallel to input filter capacitor. Use Value: 100 W 10/1000 µs rating handles typical lightning-induced transients without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52C75S | Same 75 V nominal VZ, but SOD-323 package (smaller footprint), 500 mW Ptot, 150 Ω ZZT | Lower power handling limits use to low-energy signal-level clamping, not power-rail protection | Select when board space is critical and surge energy is <10 W; verify thermal derating on smaller pad |
| Vishay BZX84-C75 | SOT-23 package, 500 mW rating, 120 Ω ZZT, no AEC-Q101 qualification | Not qualified for automotive; limited to commercial-temperature industrial use | Choose for cost-sensitive consumer or non-automotive industrial designs where qualification is not required |
Compared with BZD27C75PWH, BZT52C75S offers smaller size but sacrifices 50% power rating and surge capability, while BZX84-C75 lacks automotive qualification and thermal robustness - making BZD27C75PWH the only option meeting AEC-Q101, 1 W continuous, and 100 W surge requirements in SOD-123W.
Availability
BZD27C75PWH is available at Aetrix Electronics and suitable for automotive power protection, industrial voltage reference, and telecom DC supervision requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for BZD27C75PWH 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 semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components for automotive and industrial markets.
The BZD27C series was developed to deliver AEC-Q101-qualified, high-power Zener diodes in compact surface-mount packages for next-generation automotive electronics and high-reliability industrial systems.
FAQ
What is the zener voltage tolerance of BZD27C75PWH?
The BZD27C75PWH has a zener voltage range of 71.3 V (minimum) to 78.8 V (maximum) at IZT = 10 mA, corresponding to a ±3.8 V deviation from the nominal 75 V rating. This 5% tolerance is specified per the manufacturer's electrical characteristics table and applies under standard test conditions (TA = 25°C).
Is BZD27C75PWH suitable for automotive applications?
Yes, BZD27C75PWH is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, high-temperature reverse bias, and electrostatic discharge required for automotive under-hood and powertrain applications. Its -55°C to +175°C junction temperature range further supports deployment in harsh automotive environments.
What is the maximum non-repetitive peak pulse power for BZD27C75PWH?
The BZD27C75PWH is rated for 100 W non-repetitive peak pulse power under a 10/1000 µs waveform, as confirmed in the Absolute Maximum Ratings table. This value applies specifically to parts from BZD27C110PWH through BZD27C220PWH - and BZD27C75PWH falls within the same group per documentation version B2203.
What package type does BZD27C75PWH use?
BZD27C75PWH uses the SOD-123W surface-mount package: a low-profile, molded plastic case with matte tin-plated leads, moisture sensitivity level 1, and polarity indicated by a cathode band. Its mechanical outline and suggested pad layout are documented in the official Taiwan Semiconductor package drawings.
How does the temperature coefficient affect BZD27C75PWH performance?
The BZD27C75PWH exhibits a zener voltage temperature coefficient (αVZ) between 0.09% / °C and 0.13% / °C, meaning its nominal 75 V breakdown shifts approximately ±0.068 V to ±0.098 V per 1°C change in junction temperature - critical for precision reference designs operating across wide ambient ranges.
BZD27C75PWH 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):
- 75 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 56 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
BZD27C75PWH FAQ
1.How can I place an order for BZD27C75PWH through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27C75PWH 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 BZD27C75PWH reliable?
The price and inventory of BZD27C75PWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27C75PWH is usually 5 days.
3.What payment methods are accepted for BZD27C75PWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27C75PWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27C75PWH?
BZD27C75PWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27C75PWH 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 BZD27C75PWH?
For technical support, including BZD27C75PWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27C75PWH requirements.
6.How does Aetrix verify that BZD27C75PWH is sourced from the original manufacturer or authorized distributors?
All BZD27C75PWH 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 BZD27C75PWH meets industry standards.
7.What is the process for return or replacement of BZD27C75PWH?
All BZD27C75PWH units undergo pre-shipment inspection (PSI). If there is an issue with BZD27C75PWH, 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 BZD27C75PWH part is unused and in its original packaging.
Return procedure for BZD27C75PWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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