My Inquiry
My Account
Taiwan Semiconductor Corporation P6SMB220
- Part No.:
- P6SMB220
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220.pdf
- Description:
- 600W, 220V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,836
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB220 from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 198–242 V, stand-off voltage of 175 V, and clamping voltage of 342 V at 1.8 A peak pulse current. It features glass-passivated junction, low leakage (<1 µA at 175 V), and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive surge immunity. It protects DC power rails in switching mode power supplies and industrial adapters.
For engineers reviewing the P6SMB220 datasheet, P6SMB220 pinout, P6SMB220 application, or P6SMB220 equivalent, key selection criteria include its 175 V working voltage, 342 V clamping performance under 10/1000 µs surge, DO-214AA (SMB) package compatibility, and unidirectional polarity marking - all critical for overvoltage protection layout and reliability validation.
Technical Context
The P6SMB220 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown threshold of 198 V. Its clamping action limits transient energy to ≤342 V at 1.8 A, enabling robust protection of downstream 200 V-class MOSFETs or controllers without crowbar behavior.
Thermal design relies on RθJA = 55 °C/W and RθJC = 10 °C/W, supporting continuous operation up to +150 °C junction temperature. The device uses a single-die DO-214AA (SMB) construction with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 198 V / 242 V - defines guaranteed avalanche initiation range under 1 mA test current; ensures consistent turn-on across production lots |
| VWM | 175 V - maximum continuous reverse operating voltage; sets safe DC rail margin before conduction begins |
| VC @ IPPM | 342 V at 1.8 A (10/1000 µs) - peak clamped voltage during standardized surge; determines protected circuit's voltage stress ceiling |
| PPPSM | 600 W - non-repetitive peak pulse power rating; defines single-event surge energy handling capability |
| IR @ VWM | <1 µA - ultra-low reverse leakage at rated stand-off voltage; minimizes standby power loss in high-impedance circuits |
| TJ max | +150 °C - maximum junction temperature; enables use in enclosed, thermally constrained environments like sealed power adapters |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline with 4.5 mm x 3.9 mm footprint and cathode band polarity marking |
Pinout & Package
Package: DO-214AA (SMB), molded plastic case with matte tin-plated leads, UL 94V-0 flammability rating, and cathode band marking for unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (cathode-band side) | Ground reference terminal | Connected to system ground or low-side return path; must be routed with low-inductance trace for effective clamping |
| Cathode (marked side) | Protected line input | Connected to DC input rail (e.g., +175 V bus); absorbs surge energy by shunting to anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Fast response time | <1.0 ps rise-to-breakdown - enables suppression of nanosecond-scale ESD and fast transients before sensitive ICs are damaged |
| Glass passivated junction | Enhanced moisture resistance and long-term reliability under thermal cycling and humid environments |
| ISO 7637-2 compliance | Validated for automotive Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) waveforms |
| Low profile SMB package | Enables automated SMT placement and supports high-density PCB layouts without height interference |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS directives; suitable for green manufacturing and export-controlled applications |
Applications
| Switching Mode Power Supply (SMPS) | Industrial AC/DC Adapter |
|---|---|
Use Scenario: Protects primary-side rectified DC bus against line surges and inductive kickback in offline flyback converters. IC Role / Device Role: Unidirectional TVS placed across bulk capacitor input to clamp transients before they reach PWM controller or MOSFET gate driver. Use Value: Withstands 600 W pulses and clamps to 342 V, preventing overvoltage failure of 250 V-rated electrolytic capacitors and 600 V MOSFETs. |
Use Scenario: Shields secondary-side 24 V or 48 V output rails from load-dump spikes and backfeed transients in DIN-rail mounted adapters. IC Role / Device Role: Mounted at output connector interface to absorb ISO 7637-2 Pulse 2b and 3b events before reaching connected PLC modules. Use Value: 175 V stand-off allows stable operation under nominal 200 V DC output while delivering sub-µA leakage to preserve no-load efficiency. |
| Telecom Power Interface | Motor Drive DC Link Protection |
Use Scenario: Guards PoE-powered equipment inputs against lightning-induced surges coupled onto Ethernet cables or auxiliary power lines. IC Role / Device Role: First-stage protection device on 57 V or 90 V intermediate bus, upstream of DC-DC converters and PHY ICs. Use Value: 342 V clamping voltage provides >100 V margin above 240 V max PoE++ bus, ensuring safe operation during worst-case surge events. |
Use Scenario: Safeguards DC link capacitors and IGBT gate drivers in variable-frequency drives subjected to regenerative braking spikes. IC Role / Device Role: Parallel-connected across 200–250 V DC bus to limit voltage overshoot during rapid motor deceleration. Use Value: 600 W peak power rating handles repetitive 10/1000 µs transients up to 1.8 A without degradation, verified per JEDEC JESD22-A114. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | Bidirectional variant with same VBR (209–231 V), but symmetric clamping in both polarities; higher VC = 328 V at 1.9 A | Required where AC-coupled signals or reversible polarity interfaces need protection | Select SMBJ220A only if bidirectional surge immunity is mandated; otherwise P6SMB220 offers lower cost and tighter unidirectional clamping |
| 1.5SMC220A | Larger DO-214AB (SMC) package; identical electrical specs but higher thermal mass (RθJA = 40 °C/W) and 1.5 kW peak rating | Suitable for higher ambient temperatures (>85 °C) or systems requiring extended surge endurance beyond single-event duty | Choose 1.5SMC220A when board space permits and thermal derating margins are insufficient with SMB footprint |
Compared with SMBJ220A and 1.5SMC220A, the P6SMB220 delivers optimal balance of compact DO-214AA footprint, 342 V clamping performance, and cost-effective unidirectional protection for fixed-polarity DC rails - making it ideal for space-constrained SMPS and adapter designs where polarity is known and stable.
Availability
P6SMB220 is available at Aetrix Electronics and suitable for switching mode power supplies, industrial AC/DC adapters, and telecom power interfaces requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB220 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 TVS diodes, rectifiers, and power devices since 1979.
The P6SMB series belongs to TSC's industrial-grade transient suppression portfolio, engineered specifically for ruggedized DC power rail protection in automotive, industrial, and telecom infrastructure applications where reliability under surge stress is mission-critical.
FAQ
What is the polarity configuration of the P6SMB220?
The P6SMB220 is a unidirectional TVS diode, marked with a cathode band on the SMB package. It conducts only when reverse-biased above its breakdown voltage (198–242 V), making it suitable for protecting positive DC rails referenced to ground. Unlike bidirectional variants such as P6SMB220A, the P6SMB220 does not conduct under forward surge conditions - a key distinction confirmed in TSC's Q2209 datasheet revision.
Does the P6SMB220 meet automotive surge standards?
Yes, the P6SMB220 meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), as explicitly stated in the official Taiwan Semiconductor documentation. Its 600 W peak pulse rating and 342 V clamping voltage ensure compliance with these waveforms when applied within specified mounting and layout guidelines.
What is the maximum clamping voltage of the P6SMB220 under standard test conditions?
The maximum clamping voltage of the P6SMB220 is 342 V, measured at a peak pulse current (IPPM) of 1.8 A using the 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by protected circuitry during a standardized surge event - a critical parameter for validating downstream component voltage ratings.
Can the P6SMB220 be used in place of the P6SMB220A?
No - the P6SMB220 and P6SMB220A are not interchangeable without circuit review. The P6SMB220 is unidirectional with VBR = 198–242 V and VC = 342 V, while the P6SMB220A is bidirectional with VBR = 209–231 V and VC = 328 V. Substituting one for the other may result in incorrect polarity response or inadequate clamping margin; always verify schematic symbol and layout polarity before replacement.
What is the thermal resistance specification for the P6SMB220 in its DO-214AA package?
The P6SMB220 has a junction-to-ambient thermal resistance (RθJA) of 55 °C/W and a junction-to-case thermal resistance (RθJC) of 10 °C/W, as published in Taiwan Semiconductor's Q2209 datasheet. These values assume standard JEDEC 2-layer PCB mounting with 1 cm² copper pad; actual thermal performance depends on PCB copper area, airflow, and adjacent heat sources - design margins should account for derating above 25 °C ambient.
P6SMB220 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 175V
- Voltage - Breakdown (Min):
- 198V
- Voltage - Clamping (Max) @ Ipp:
- 342V
- Current - Peak Pulse (10/1000µs):
- 1.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB220 FAQ
1.How can I place an order for P6SMB220 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220 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 P6SMB220 reliable?
The price and inventory of P6SMB220 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB220 is usually 5 days.
3.What payment methods are accepted for P6SMB220?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220?
P6SMB220 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220 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 P6SMB220?
For technical support, including P6SMB220 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220 requirements.
6.How does Aetrix verify that P6SMB220 is sourced from the original manufacturer or authorized distributors?
All P6SMB220 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 P6SMB220 meets industry standards.
7.What is the process for return or replacement of P6SMB220?
All P6SMB220 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220, 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 P6SMB220 part is unused and in its original packaging.
Return procedure for P6SMB220:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
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…
