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Taiwan Semiconductor Corporation BZD27C82PW
- Part No.:
- BZD27C82PW
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
BZD27C82PW.pdf
- Description:
- DIODE ZENER 82V 1W SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,143
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Product details
Overview
BZD27C82PW from Taiwan Semiconductor is a 1 W, 82 V ±5% zener diode in SOD-123W package, designed for precision voltage regulation and transient overvoltage protection in power supply rails and reference circuits. It delivers 77.9 V (min) to 86.1 V (max) zener voltage at 10 mA test current, with 3000 Ω dynamic impedance and 1.3 µA leakage at 62 V.
For engineers reviewing the BZD27C82PW datasheet, BZD27C82PW pinout, BZD27C82PW application, or BZD27C82PW equivalent, key selection factors include its 114 V clamping voltage under 10/1000 µs surge, -55°C to +175°C operating junction temperature, and SOD-123W footprint compatibility with high-density PCB layouts.
Technical Context
The BZD27C82PW operates as a single-die silicon zener diode optimized for stable reverse-biased regulation. Its 82 V nominal zener voltage is specified at 10 mA test current, with 200 Ω maximum zener impedance at IZK = 0.25 mA and 3000 Ω at IZT = 10 mA.
Thermal performance is defined by RθJA = 85°C/W (free-air), RθJL = 22°C/W (lead), and RθJC = 24°C/W (case). It supports non-repetitive peak pulse power dissipation of 100 W under 10/1000 µs waveform per family specification for BZD27C110PW–BZD27C220PW variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 77.9–86.1 V @ 10 mA - defines regulation window for stable 82 V reference |
| Power Dissipation Ptot | 1.0 W @ 25°C ambient - sets continuous thermal limit on standard PCB pad |
| Clamping Voltage VC | 114 V @ 10/1000 µs waveform - determines max surge voltage seen by protected circuit |
| Zener Impedance ZZT | 3000 Ω @ 10 mA - indicates regulation stiffness under load variation |
| Leakage Current IR | 1.3 µA @ 62 V - ensures minimal standby power loss in high-impedance bias networks |
| Junction Temperature TJ | -55°C to +175°C - enables operation in automotive under-hood and industrial motor control environments |
| Package | SOD-123W - low-profile surface-mount with 5 mm × 5 mm Cu-pad thermal pad requirement |
Pinout & Package
SOD-123W package: 2-terminal surface-mount device with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to ground or lower-potential node in shunt regulator configuration |
| Cathode | Zener breakdown terminal / high-side connection | Connected to input rail or protected node; polarity marked by visible band |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD-123W package | Enables compact placement in space-constrained power management modules and DC-DC converter feedback paths |
| 100 W surge rating (10/1000 µs) | Provides robust ESD and lightning-induced transient suppression without external TVS staging |
| ±5% zener voltage tolerance | Supports tight regulation in precision analog references and ADC voltage scaling circuits |
| 1.3 µA leakage at 62 V | Minimizes error in high-impedance voltage divider networks used for microcontroller monitoring |
| RoHS & halogen-free compliance | Meets IPC-J-STD-609 and IEC 61249-2-21 requirements for green electronics manufacturing |
Applications
| Industrial Power Supply Regulation | Automotive ECU Reference Voltage |
|---|---|
Use Scenario: Stabilizing 82 V intermediate bus in programmable logic controller (PLC) power stage. IC Role / Device Role / Timing Role: Shunt zener regulator providing fixed reference for isolated DC-DC feedback optocoupler. Use Value: Maintains ±1.5% output accuracy across -40°C to +125°C ambient using 82 V nominal VZ and low αVZ (0.09%/°C). |
Use Scenario: Generating stable 82 V reference for battery management system (BMS) cell stack monitoring. IC Role / Device Role / Timing Role: Precision voltage clamp protecting ADC input during load dump transients. Use Value: Limits voltage to 114 V under 10/1000 µs surge while maintaining <1.3 µA leakage at 62 V for low-power sleep mode. |
| Telecom Line Card Protection | Medical Imaging Power Rail Clamping |
Use Scenario: Overvoltage protection on 48 V PoE++ auxiliary rails in network switches. IC Role / Device Role / Timing Role: Standby zener clamp absorbing induced surges from adjacent data lines. Use Value: Withstands 100 W non-repetitive pulse without degradation, meeting GR-1089-CORE Level 3 immunity. |
Use Scenario: Clamping transient spikes on X-ray generator HV supply feedback loop. IC Role / Device Role / Timing Role: Secondary voltage limiter backing up primary TVS in Class II medical equipment. Use Value: UL 94V-0 molding compound and -55°C to +175°C TJ range ensure reliability in sterilizable enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT52-B82S | 82 V ±5%, SOD-323 package, 500 mW Ptot, 1500 Ω ZZT | Lower power rating limits use in >500 mW continuous regulation; smaller footprint reduces thermal mass | Select when board space is critical and average power dissipation remains below 0.5 W |
| Vishay BZX84-C82 | 82 V ±5%, SOT-23 package, 300 mW Ptot, 2000 Ω ZZT, higher leakage (5 µA @ 62 V) | Not suitable for low-leakage reference designs; limited surge capability (PRSM = 40 W) | Choose only for cost-sensitive consumer applications where 1 W regulation is not required |
Compared with BZD27C82PW, the BZT52-B82S offers tighter thermal resistance in smaller area but halves power handling, while the BZX84-C82 trades off surge robustness and leakage performance for legacy SOT-23 compatibility-neither matches the 1 W / 100 W / 1.3 µA combination of the BZD27C82PW in demanding industrial designs.
Availability
BZD27C82PW is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU reference voltage generation, and telecom line card protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZD27C82PW 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, including zener diodes, TVS, MOSFETs, and rectifiers for industrial and automotive markets.
The BZD27C series was engineered for high-reliability voltage regulation and transient suppression in harsh-environment applications, emphasizing wide temperature operation, surge robustness, and RoHS/halogen-free compliance.
FAQ
What is the zener voltage tolerance of the BZD27C82PW?
The BZD27C82PW has a zener voltage range of 77.9 V (minimum) to 86.1 V (maximum) at 10 mA test current, corresponding to a nominal 82 V rating with ±5% tolerance. This tolerance is guaranteed across the full operating temperature range of -55°C to +175°C, making the BZD27C82PW suitable for precision reference applications where stability under thermal stress is critical.
Does the BZD27C82PW support high-surge applications?
Yes, the BZD27C82PW supports high-surge applications with a non-repetitive peak pulse power dissipation of 100 W under 10/1000 µs waveform, as specified for the BZD27C110PW–BZD27C220PW family group. Its 114 V clamping voltage at this waveform ensures effective protection for downstream ICs in industrial motor drives and telecom infrastructure equipment.
What is the thermal resistance of the BZD27C82PW in free air?
The BZD27C82PW has a junction-to-ambient thermal resistance (RθJA) of 85°C/W when mounted on a standard FR-4 PCB with no copper pour. This value assumes standard SOD-123W mounting per manufacturer guidelines; adding a 5 mm × 5 mm Cu pad reduces RθJA significantly and enables full 1.0 W power dissipation at 25°C ambient.
Is the BZD27C82PW compatible with lead-free reflow processes?
Yes, the BZD27C82PW features matte tin-plated leads qualified to J-STD-002 for solderability and meets JEDEC JESD201 Class 2 whisker resistance requirements. Its SOD-123W package is rated for standard lead-free reflow profiles up to 260°C peak temperature, with moisture sensitivity level 1 ensuring no bake requirement prior to assembly.
How does the leakage current of the BZD27C82PW compare to similar 82 V zeners?
The BZD27C82PW specifies only 1.3 µA leakage current at 62 V, which is significantly lower than alternatives like the BZX84-C82 (5 µA) and aligns with its use in high-impedance reference networks. This low leakage directly improves accuracy in voltage divider-based sensing and reduces standby power in always-on monitoring circuits using the BZD27C82PW.
BZD27C82PW 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
BZD27C82PW FAQ
1.How can I place an order for BZD27C82PW through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27C82PW 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 BZD27C82PW reliable?
The price and inventory of BZD27C82PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27C82PW is usually 5 days.
3.What payment methods are accepted for BZD27C82PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27C82PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27C82PW?
BZD27C82PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27C82PW 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 BZD27C82PW?
For technical support, including BZD27C82PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27C82PW requirements.
6.How does Aetrix verify that BZD27C82PW is sourced from the original manufacturer or authorized distributors?
All BZD27C82PW 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 BZD27C82PW meets industry standards.
7.What is the process for return or replacement of BZD27C82PW?
All BZD27C82PW units undergo pre-shipment inspection (PSI). If there is an issue with BZD27C82PW, 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 BZD27C82PW part is unused and in its original packaging.
Return procedure for BZD27C82PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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