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Taiwan Semiconductor Corporation BZD27C82PWH
- Part No.:
- BZD27C82PWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
BZD27C82PWH.pdf
- Description:
- DIODE ZENER 82V 1W SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:9,094
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Product details
Overview
BZD27C82PWH from Taiwan Semiconductor is a 1 W, 82 V ±5% tolerance silicon Zener diode in SOD-123W package, rated for 10 mA test current, 114 V clamping voltage at 1 A surge, and 1.3 µA leakage at 62 V, used for precision voltage regulation and transient overvoltage protection in automotive and industrial power rails.
For engineers reviewing the BZD27C82PWH datasheet, BZD27C82PWH pinout, BZD27C82PWH application, or BZD27C82PWH equivalent, key selection criteria include zener voltage tolerance (±5%), low leakage (<1.3 µA), AEC-Q101 qualification, thermal resistance (RθJA = 85 °C/W), and SOD-123W surface-mount compatibility with J-STD-002 solderability.
Technical Context
The BZD27C82PWH operates as a single-die, unidirectional Zener diode optimized for stable DC voltage reference and transient suppression in 12 V–48 V systems. Its 82 V nominal zener voltage is specified at 10 mA (IZT), with dynamic impedance of 200 Ω and temperature coefficient of +0.09 %/°C.
It supports non-repetitive peak pulse power dissipation up to 100 W under 10/1000 µs waveform per AEC-Q101 stress conditions, and features moisture sensitivity level 1 (J-STD-020), RoHS compliance, and halogen-free construction per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 77.9–86.1 V @ IZT = 10 mA - ensures tight regulation within ±5% tolerance for reference stability |
| Power Dissipation (Ptot) | 1.0 W @ TA = 25°C - defines continuous steady-state thermal limit on standard PCB pad |
| Clamping Voltage (VC) | 114 V @ IRSM = 1 A, 10/1000 µs - specifies maximum transient voltage seen during ESD/surge events |
| Zener Impedance (ZZT) | 200 Ω @ IZT = 10 mA - determines AC regulation error and noise rejection capability |
| Leakage Current (IR) | 1.3 µA @ VR = 62 V - critical for low-power standby circuits and battery-backed systems |
| Junction Temperature Range | −55 °C to +175 °C - enables operation in under-hood automotive and high-temp industrial environments |
| Thermal Resistance (RθJA) | 85 °C/W - quantifies self-heating rise above ambient; requires ≥5 mm × 5 mm Cu pad for full 1 W rating |
Pinout & Package
SOD-123W low-profile surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability; polarity indicated by visible cathode band on molded case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward bias | Connected to lower-potential node in regulation or clamp configuration |
| Cathode | Zener breakdown terminal | Connected to higher-potential rail; voltage referenced to this node during reverse-bias operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low leakage current | 1.3 µA at 62 V enables use in ultra-low-quiescent-current power management circuits |
| Stable temperature coefficient | +0.09 %/°C minimizes drift across −40 °C to +125 °C operating range |
| High surge robustness | 100 W peak pulse power (10/1000 µs) supports ISO 7637-2 and IEC 61000-4-5 compliance |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; compatible with standard SMT assembly lines |
Applications
| Automotive Power Rail Protection | Industrial Sensor Reference |
|---|---|
|
Use Scenario: Protecting CAN transceiver power input against load dump transients in 24 V commercial vehicle ECUs. IC Role / Device Role / Timing Role: Zener clamping device placed between VCC and GND to clamp surges above 114 V. Use Value: Limits voltage excursion to safe levels without sacrificing response time, leveraging 100 W surge rating and 1.3 µA leakage. |
Use Scenario: Providing stable 82 V reference for high-side current sense amplifier biasing in motor drive inverters. IC Role / Device Role / Timing Role: Precision voltage reference source with ±5% tolerance and +0.09 %/°C TC. Use Value: Enables accurate current measurement across temperature via stable reference, supported by low dynamic impedance (200 Ω). |
| Telecom DC-DC Feedback | Energy Meter Overvoltage Detection |
|
Use Scenario: Secondary-side feedback path in isolated 48 V telecom DC-DC converter using optocoupler-coupled regulation. IC Role / Device Role / Timing Role: Zener reference for TL431-like feedback network requiring precise 82 V threshold. Use Value: Delivers tight VZ tolerance (77.9–86.1 V) and low tempco to maintain output regulation accuracy over life. |
Use Scenario: Detecting overvoltage condition (>86.1 V) on 3-phase meter front-end supply before ADC input stage. IC Role / Device Role / Timing Role: Threshold detector triggering shutdown logic when line voltage exceeds safe margin. Use Value: Provides deterministic trip point with minimal hysteresis due to low ZZT (200 Ω) and fast response to overvoltage events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52C82S | Same SOD-123 package, 82 V nominal, but ±6% tolerance (77–87 V); 250 Ω ZZT; no AEC-Q101 qualification | Lacks automotive qualification; higher impedance reduces regulation precision in feedback loops | Acceptable for cost-sensitive industrial designs where AEC-Q101 is not required |
| Vishay PLZ82 | SOD-123W package, 82 V, ±5%, but 1.3 W Ptot; 150 Ω ZZT; AEC-Q101 qualified; 1.0 µA leakage @ 62 V | Higher power rating and lower leakage support extended thermal margin and ultra-low-power sensing | Preferred for high-reliability automotive modules needing enhanced surge margin and lower leakage |
Compared with BZD27C82PWH, BZT52C82S offers lower cost but sacrifices automotive qualification and regulation precision, while PLZ82 improves thermal headroom and leakage performance at slightly higher unit cost-making it suitable for next-generation ECU designs demanding tighter long-term stability.
Availability
BZD27C82PWH is available at Aetrix Electronics and suitable for automotive power protection, industrial sensor reference, telecom DC-DC feedback, and energy meter overvoltage detection requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for BZD27C82PWH 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, specializing in high-reliability power devices and protection components.
The BZD27C series was designed specifically for AEC-Q101-compliant automotive and industrial Zener applications requiring stable voltage reference, low leakage, and robust surge immunity in compact SOD-123W packaging.
FAQ
What is the exact zener voltage tolerance for BZD27C82PWH?
The BZD27C82PWH has a guaranteed zener voltage range of 77.9 V to 86.1 V at 10 mA test current, corresponding to a ±5% tolerance around the nominal 82 V rating. This specification is verified per the manufacturer's electrical characteristics table and applies under standard test conditions (TA = 25°C).
Is BZD27C82PWH qualified for automotive use?
Yes, the BZD27C82PWH is explicitly AEC-Q101 qualified, as confirmed in the product features section of the official datasheet. It undergoes stress testing including high-temperature reverse bias, temperature cycling, and ESD per AEC-Q101 requirements, making it suitable for under-hood and body-control module applications.
What is the maximum clamping voltage of BZD27C82PWH during surge events?
The BZD27C82PWH exhibits a maximum clamping voltage (VC) of 114 V at 1 A peak current under 10/1000 µs waveform, as specified in the Electrical Specifications table. This value defines the upper voltage limit seen by downstream circuitry during transient suppression events.
Does BZD27C82PWH have moisture sensitivity level (MSL) rating?
Yes, the BZD27C82PWH carries MSL Level 1 per J-STD-020, meaning it is not moisture-sensitive and may be stored indefinitely at ambient conditions without baking prior to reflow soldering-enabling direct placement in standard SMT assembly processes.
What is the thermal resistance from junction to ambient for BZD27C82PWH?
The junction-to-ambient thermal resistance (RθJA) of BZD27C82PWH is 85 °C/W, measured on a standard 5 mm × 5 mm copper pad. This value governs temperature rise under continuous 1 W dissipation and must be considered in thermal layout design to ensure TJ remains ≤175 °C.
BZD27C82PWH 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):
- 82 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 62 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
BZD27C82PWH FAQ
1.How can I place an order for BZD27C82PWH through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27C82PWH 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 BZD27C82PWH reliable?
The price and inventory of BZD27C82PWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27C82PWH is usually 5 days.
3.What payment methods are accepted for BZD27C82PWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27C82PWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27C82PWH?
BZD27C82PWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27C82PWH 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 BZD27C82PWH?
For technical support, including BZD27C82PWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27C82PWH requirements.
6.How does Aetrix verify that BZD27C82PWH is sourced from the original manufacturer or authorized distributors?
All BZD27C82PWH 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 BZD27C82PWH meets industry standards.
7.What is the process for return or replacement of BZD27C82PWH?
All BZD27C82PWH units undergo pre-shipment inspection (PSI). If there is an issue with BZD27C82PWH, 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 BZD27C82PWH part is unused and in its original packaging.
Return procedure for BZD27C82PWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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