Taiwan Semiconductor Corporation BZD27C220PW
- Part No.:
- BZD27C220PW
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123W
- Datasheet:
-
BZD27C220PW.pdf
- Description:
- DIODE ZENER 220V 1W SOD123W
- Quantity:
- Payment:

- Shipping:

Inventory:4,734
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZD27C220PW from Taiwan Semiconductor is a 220 V, 5 mA Zener diode in SOD-123W package, rated for 1.0 W steady-state power dissipation and 279 V clamping voltage under 10/1000 µs surge, used for overvoltage protection in industrial power rails and reference stabilization in precision analog circuits.
For engineers reviewing the BZD27C220PW datasheet, BZD27C220PW pinout, BZD27C220PW application, or BZD27C220PW equivalent, this page delivers verified Zener voltage tolerance (±5%), thermal resistance (RθJA = 85 °C/W), leakage current (≤0.35 µA at 170 V), and surge capability (100 W, 10/1000 µs) - all confirmed for the exact BZD27C220PW variant.
Technical Context
The BZD27C220PW operates as a single-die, silicon Zener diode with sharp reverse breakdown at nominal 220 V, specified at IZT = 5 mA. Its low leakage (≤0.35 µA @ 170 V) and tight voltage tolerance (209–231 V) support stable voltage referencing in high-impedance nodes.
Thermal design is enabled by RθJA = 85 °C/W and RθJC = 24 °C/W, with maximum junction temperature of +175 °C. It sustains non-repetitive 100 W surges per 10/1000 µs waveform - a rating distinct from lower-voltage variants (e.g., BZD27C100PW: 150 W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 209–231 V (±5% tolerance at IZT = 5 mA; enables precise 220 V regulation) |
| Power Dissipation Ptot | 1.0 W at TA = 25°C (requires thermal pad design for >1 W operation) |
| Clamping Voltage VC | 279 V @ 10/1000 µs waveform (defines peak transient suppression level) |
| Leakage Current IR | ≤0.35 µA @ VR = 170 V (ensures minimal loading in high-Z reference paths) |
| Junction Temp. TJ(max) | +175 °C (supports operation in automotive under-hood and industrial ambient environments) |
| Zener Impedance ZZT | 900 Ω @ IZT = 5 mA (indicates moderate dynamic impedance for 220 V class) |
| Temp. Coefficient αVZ | 0.09–0.13 %/°C (predictable drift behavior for temperature-compensated designs) |
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 / Reference ground node | Connected to circuit ground or lower-potential rail during Zener operation |
| Cathode | Zener breakdown terminal / Input voltage node | Connected to protected line or reference source; voltage regulated relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD-123W package | Enables high-density PCB layouts with JEDEC-compliant footprint and J-STD-020 Level 1 moisture sensitivity |
| 100 W surge rating (10/1000 µs) | Validated clamping performance for IEC 61000-4-5 Level 3/4 surge immunity in industrial interfaces |
| ≤0.35 µA leakage @ 170 V | Minimizes error in high-impedance voltage references and battery-monitoring circuits |
| ±5% Zener voltage tolerance | Reduces need for post-production trimming in fixed-voltage clamp and regulator applications |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and environmental requirements for global industrial shipments |
Applications
| Industrial Power Rail Protection | Precision Voltage Reference |
|---|---|
Use Scenario: Protecting 200–240 V DC bus lines in PLC I/O modules against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Zener clamping device placed between rail and ground to limit voltage excursions. Use Value: Clamps surges to ≤279 V with 100 W capability, preventing damage to downstream DC-DC converters and microcontrollers. | Use Scenario: Providing stable 220 V reference for high-voltage ADC biasing or feedback divider networks in energy metering ICs. IC Role / Device Role / Timing Role: Precision shunt reference element operating at 5 mA test current. Use Value: Delivers ±5% voltage accuracy and <0.35 µA leakage, minimizing gain error and offset drift in measurement front-ends. |
| Automotive Subsystem Clamp | Telecom Line Interface Protection |
Use Scenario: Transient suppression on 24 V auxiliary power feeds in ADAS camera modules exposed to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standby-mode overvoltage protector with low standby current draw. Use Value: Maintains <0.35 µA leakage at 170 V, preserving system quiescent current budget while enabling fast 279 V clamping. | Use Scenario: Secondary-level surge protection on -48 V telecom power distribution boards handling lightning-induced surges. IC Role / Device Role / Timing Role: High-voltage Zener clamp integrated into multi-stage protection architecture. Use Value: Provides 220 V regulation point with 100 W 10/1000 µs surge rating, complementing primary GDT and TVS stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BZT03-C220 | Same 220 V nominal Zener voltage, but in DO-41 package (axial lead); higher RθJA (~200 °C/W); 1.3 W Ptot. | Requires through-hole mounting and larger board area; less suitable for automated SMT assembly. | Select BZT03-C220 only when axial packaging or higher steady-state power is required and SMT is not mandatory. |
| Vishay BZX84-C220 | SOT-23 package; lower power rating (500 mW); tighter Zener tolerance (±5% same); higher leakage (≤1 µA @ 170 V). | Limited to low-power signal-level clamping; insufficient for 100 W surge handling or 1 W continuous dissipation. | Choose BZX84-C220 only for space-constrained, low-energy circuits where 220 V reference is needed but surge robustness is secondary. |
Compared with BZD27C220PW, BZT03-C220 offers higher steady-state power but lacks SMT compatibility and surge rating parity, while BZX84-C220 sacrifices surge capability and power handling for ultra-compact size - making BZD27C220PW the optimal choice for SMT-based, high-energy 220 V protection and referencing.
Availability
BZD27C220PW is available at Aetrix Electronics and suitable for industrial power rail protection, precision high-voltage referencing, and telecom line interface protection requiring stable component supply across extended production cycles.
Supply support for BZD27C220PW 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 ESD protection components for industrial and automotive markets.
The BZD27 series was designed specifically for high-voltage, high-surge Zener regulation and transient suppression in demanding power systems - emphasizing thermal robustness, tight voltage tolerance, and SMT manufacturability.
FAQ
What is the exact Zener voltage range for BZD27C220PW?
The BZD27C220PW has a guaranteed Zener voltage range of 209 V to 231 V at test current IZT = 5 mA, representing ±5% tolerance around the nominal 220 V rating. This range is validated per Taiwan Semiconductor's D2203 specification sheet and applies exclusively to the BZD27C220PW variant - not extrapolated from adjacent voltages in the family.
Does BZD27C220PW support automated SMT assembly?
Yes, BZD27C220PW uses the SOD-123W package with matte tin-plated leads compliant with J-STD-002 solderability standards and moisture sensitivity level 1 per J-STD-020. Its low-profile design and defined pad layout enable reliable reflow soldering in high-volume SMT lines without special handling.
What is the maximum non-repetitive surge power rating for BZD27C220PW?
The BZD27C220PW is rated for 100 W non-repetitive peak pulse power dissipation under 10/1000 µs waveform conditions, as explicitly specified for the BZD27C110PW–BZD27C220PW subgroup. This differs from lower-voltage variants (e.g., BZD27C100PW), which are rated at 150 W.
How does leakage current behave for BZD27C220PW at high reverse voltage?
At VR = 170 V, the BZD27C220PW exhibits leakage current ≤0.35 µA, measured per specification sheet Table 4. This low leakage ensures minimal loading in high-impedance reference circuits and preserves accuracy in precision analog monitoring applications using the BZD27C220PW.
Is BZD27C220PW RoHS and halogen-free compliant?
Yes, BZD27C220PW is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" section of Taiwan Semiconductor's D2203 datasheet. This compliance applies to the full material composition of the SOD-123W package, including molding compound and terminations.
BZD27C220PW 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):
- 220 V
- Tolerance:
- ±5%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 900 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 160 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
BZD27C220PW FAQ
1.How can I place an order for BZD27C220PW through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27C220PW 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 BZD27C220PW reliable?
The price and inventory of BZD27C220PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27C220PW is usually 5 days.
3.What payment methods are accepted for BZD27C220PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27C220PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27C220PW?
BZD27C220PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27C220PW 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 BZD27C220PW?
For technical support, including BZD27C220PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27C220PW requirements.
6.How does Aetrix verify that BZD27C220PW is sourced from the original manufacturer or authorized distributors?
All BZD27C220PW 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 BZD27C220PW meets industry standards.
7.What is the process for return or replacement of BZD27C220PW?
All BZD27C220PW units undergo pre-shipment inspection (PSI). If there is an issue with BZD27C220PW, 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 BZD27C220PW part is unused and in its original packaging.
Return procedure for BZD27C220PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27C220PW Tags

-
MMBZ5240B-7-F
Diodes Incorporated

-
BZT52C5V6T-7
Diodes Incorporated

-
MMSZ5231B-7-F
Diodes Incorporated

-
BZT52C15-7-F
Diodes Incorporated

-
BZX84C3V3LT1G
onsemi

-
MMSZ5245BS-7-F
Diodes Incorporated

-
MMSZ4682T1G
onsemi

-
BZT52C15S-7-F
Diodes Incorporated

-
MM5Z5V1ST1G
onsemi

-
SMAJ4744A-TP
Micro Commercial Co

-
BZT52C3V6LP-7
Diodes Incorporated

-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
