Taiwan Semiconductor Corporation BZD17C220P

Overview

BZD17C220P from Taiwan Semiconductor is a single-die, surface-mount Zener diode with a nominal zener voltage of 220 V (min 208 V, max 233 V), 0.8 W power dissipation at 25°C, 430 Ω typical differential resistance, and ±0.09 %/°C temperature coefficient-used for precision overvoltage clamping in industrial power supply reference and protection circuits.

For engineers reviewing the BZD17C220P datasheet, BZD17C220P pinout, BZD17C220P application, or BZD17C220P equivalent, key selection factors include its 220 V zener tolerance, 4 μA reverse leakage at 160 V, Sub SMA package thermal performance (R_θJA = 180 °C/W), and compliance with JESD201 Class 2 whisker testing and RoHS/Halogen-free requirements.

Technical Context

The BZD17C220P operates as a voltage-reference and transient-suppression device in DC bias networks, leveraging silicon PN-junction Zener breakdown at 220 V. Its design supports stable regulation under low test current (I_ZT = 4 mA) and maintains low leakage (I_R ≤ 1.0 μA @ V_R = 160 V).

Thermally, it features a junction-to-ambient resistance of 180 °C/W on a 5 mm × 5 mm Cu pad and withstands non-repetitive surge pulses up to 300 W (100 μs square wave), enabling robust operation in surge-prone input stages without derating beyond 175 °C maximum junction temperature.

Key Specifications

Pinout & Package

Package: Sub SMA - low-profile surface-mount case with matte tin-plated leads, polarity indicated by cathode band, UL 94V-0 molding compound, and moisture sensitivity level 1 (J-STD-020).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode voltage-regulation applications.

Compared with BZX84-C220 and BZT52-B220, the BZD17C220P delivers superior thermal robustness (0.8 W vs. 0.5 W), tighter regulation control (characterized r_diff and TC), and verified surge capability-making it preferred for industrial-grade 220 V clamping where long-term stability and power margin matter.

Availability

BZD17C220P is available at Aetrix Electronics and suitable for industrial power supply regulation, DC link overvoltage protection, and programmable logic controller input protection requiring stable component supply and long-lifecycle availability.

Supply support for BZD17C220P 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 BZD17C series is designed specifically for industrial and automotive-grade voltage regulation and transient suppression, emphasizing tight Zener tolerance, low leakage, and robust thermal performance in compact surface-mount packages.

FAQ

What is the exact zener voltage range for BZD17C220P?

The BZD17C220P has a guaranteed zener voltage range of 208 V to 233 V at I_ZT = 4 mA, per Taiwan Semiconductor's official datasheet revision L2103. This 5 % tolerance reflects the device's specification as a precision 220 V reference diode, not a generic high-voltage clamp. The BZD17C220P achieves this range through process-controlled silicon junction design and 100 % parametric screening.

Does BZD17C220P support surge protection applications?

Yes, the BZD17C220P supports surge protection with a non-repetitive peak pulse power dissipation (P_ZSM) of 300 W for 100 μs square pulses at T_J = 25°C. Its 175 °C maximum junction temperature and low thermal resistance (R_θJL = 30 °C/W) enable reliable transient clamping in industrial power inputs. The BZD17C220P must be mounted on a 5 mm × 5 mm Cu pad to achieve rated surge performance.

What is the reverse leakage current specification for BZD17C220P?

The BZD17C220P specifies a maximum reverse leakage current (I_R) of 1.0 μA at V_R = 160 V and T_A = 25°C. This ultra-low leakage ensures minimal loading on high-impedance reference dividers and preserves accuracy in precision voltage-sensing applications. The BZD17C220P maintains this spec across its qualified temperature range due to optimized silicon processing.

Is BZD17C220P RoHS and halogen-free compliant?

Yes, the BZD17C220P is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated for solderability per J-STD-002. Moisture sensitivity is rated Level 1 (J-STD-020), eliminating bake requirements prior to reflow. These qualifications are confirmed in Taiwan Semiconductor's L2103 datasheet for the BZD17C220P.

What package type does BZD17C220P use, and what are its mechanical features?

The BZD17C220P uses the Sub SMA package: a low-profile surface-mount case with polarity indicated by a cathode band, matte tin-plated leads, and UL 94V-0 compliant molding compound. It weighs approximately 0.019 g and passes JESD201 Class 2 whisker testing. The BZD17C220P's Sub SMA footprint enables compatibility with standard SMT assembly lines while delivering superior thermal performance versus SOD-123 or SOT-23 alternatives.