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Vishay General Semiconductor - Diodes Division P6SMB220AHM3_A/I
- Part No.:
- P6SMB220AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220AHM3_A/I.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,964
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Product details
Overview
P6SMB220AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 220 V standoff voltage (VWM), 231 V minimum breakdown voltage (VBR), and 328 V maximum clamping voltage (VC) at 1.8 A peak pulse current (IPPM), designed to protect power rails and signal lines in automotive and industrial electronics against lightning-induced surges and inductive switching transients.
For engineers reviewing the P6SMB220AHM3_A/I datasheet, P6SMB220AHM3_A/I pinout, P6SMB220AHM3_A/I application, or P6SMB220AHM3_A/I equivalent, this part delivers AEC-Q101 qualification, 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for under-hood automotive modules, industrial motor drives, and telecom power supplies requiring robust, automated-placement-compatible surge protection.
Technical Context
The P6SMB220AHM3_A/I operates as a unidirectional avalanche diode with cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown behavior and fast response (<1 ns). Its clamping performance is characterized under standardized 10/1000 μs waveform conditions with 0.01% duty cycle, and thermal derating follows Fig. 2 for junction temperatures above 25 °C.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads per terminal, it achieves 100 °C/W junction-to-ambient thermal resistance (RθJA) and supports peak forward surge current up to 100 A (8.3 ms half-sine), while maintaining ≤1.0 μA reverse leakage at VWM and ±0.108 %/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 185 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC rail margin. |
| VBR (Breakdown Voltage) | 209–231 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transient events. |
| VC (Clamping Voltage) | 328 V at IPPM = 1.8 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standard surge waveform; enables IEC 61000-4-5 Level 4 compliance. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow), matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential node; completes conduction path during reverse-biased transient clamp. |
| Cathode | High-side connection point | Marked with band; connects to protected line (e.g., 24 V rail); conducts avalanche current when Vline exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against severe lightning surges (IEC 61000-4-5) without thermal runaway in compact SMB footprint. |
| Glass passivated chip junction | Ensures long-term stability of VBR and low leakage across temperature and lifetime, critical for automotive field reliability. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS power domains. |
| Low profile SMB (DO-214AA) package | 0.220" × 0.130" footprint supports high-density PCB layouts and compatibility with standard SMT pick-and-place equipment. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing without baking, reducing manufacturing overhead and yield risk. |
Applications
| Automotive Engine Control Unit (ECU) Power Input | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: 24 V battery-supplied ECU exposed to load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges >185 V before reaching LDOs and microcontrollers. Use Value: Limits clamped voltage to 328 V at 1.8 A, preventing damage to 36 V-rated input stages while surviving 600 W pulses. |
Use Scenario: 24 V digital input channel in programmable logic controller subjected to inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Standoff protection device on field-side input trace, absorbing repetitive 10/1000 μs transients induced by relay switching. Use Value: Maintains ≤1.0 μA leakage at 185 V, preserving signal integrity; clamps within 1 ns to protect optocoupler input stage. |
| Telecom DC Power Feeder Protection | Medical Imaging Power Supply Rail |
Use Scenario: -48 V DC power feed line in remote radio head enclosure subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS on positive rail referenced to chassis ground, coordinated with upstream gas discharge tube. Use Value: Provides precise 220 V standoff and 328 V clamping to avoid overvoltage on DC/DC converters while supporting 600 W surge handling. |
Use Scenario: Auxiliary 24 V supply rail in MRI subsystem where EMI immunity and zero failure-in-service are mandatory. IC Role / Device Role / Timing Role: Final-stage transient suppressor on isolated secondary side, guarding analog front-end ICs and ADC references. Use Value: AEC-Q101 qualification and 150 °C max junction temperature ensure reliability in thermally constrained sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220A-E3/5B | Same VWM/VBR/VC specs but SMA package (smaller footprint, higher RθJA = 140 °C/W); no AEC-Q101 qualification. | Limited to commercial-grade consumer/industrial use; unsuitable for automotive due to missing qualification and thermal margin. | Select only if board space is constrained and automotive qualification is not required. |
| 1.5SMC220AHE3_A | Same electrical specs but SMC (DO-214AB) package (larger, 1.5 kW rating); AEC-Q101 qualified; higher IPPM (2.2 A). | Supports higher-energy surges and better thermal dissipation; requires larger PCB area and different pad layout. | Choose when system-level surge tests exceed 600 W or extended thermal margin is needed in high-ambient environments. |
Compared with SMAJ220A-E3/5B, P6SMB220AHM3_A/I offers automotive qualification and superior thermal performance in SMB; versus 1.5SMC220AHE3_A, it trades surge headroom for compactness and cost efficiency in space-constrained AEC-Q101 designs.
Availability
P6SMB220AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power feeds, and medical imaging subsystems requiring stable component supply, AEC-Q101 validation, and consistent SMB-package logistics.
Supply support for P6SMB220AHM3_A/I 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, precision, and application-specific qualification.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure, combining standardized 600 W surge capability with AEC-Q101 and halogen-free compliance in surface-mount packages.
FAQ
What is the clamping voltage of P6SMB220AHM3_A/I at its rated peak pulse current?
The P6SMB220AHM3_A/I has a maximum clamping voltage (VC) of 328 V at 1.8 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. The P6SMB220AHM3_A/I maintains this clamping performance across its specified operating temperature range.
Is P6SMB220AHM3_A/I qualified for automotive applications?
Yes, P6SMB220AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix and documented in the Vishay P6SMB series datasheet (Document Number: 88370). It undergoes stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD per AEC-Q101 requirements. This makes P6SMB220AHM3_A/I suitable for under-hood and chassis-mounted automotive systems where reliability under thermal and mechanical stress is mandatory.
What does the "_A/I" suffix mean in P6SMB220AHM3_A/I?
The "_A/I" suffix in P6SMB220AHM3_A/I denotes packaging configuration: "A" indicates the base P6SMB220A device variant (unidirectional, 220 V VWM), "HM3" specifies halogen-free, RoHS-compliant, AEC-Q101-qualified construction, and "I" identifies 13-inch diameter plastic tape-and-reel delivery (3200 units per reel). This ordering code aligns with Vishay's standard nomenclature in the P6SMB series datasheet, page 3.
How does the thermal resistance of P6SMB220AHM3_A/I affect its surge handling capability?
P6SMB220AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This value directly limits sustained power dissipation and influences repetitive surge capability: at ambient temperatures above 25 °C, derating per Figure 2 in the datasheet reduces allowable PPPM. For example, at TA = 75 °C, P6SMB220AHM3_A/I must be operated at ~70% of its 600 W rating to maintain TJ ≤ 150 °C.
Can P6SMB220AHM3_A/I be used in bidirectional configurations?
No, P6SMB220AHM3_A/I is a unidirectional TVS diode, as confirmed by its "A" suffix (not "CA") and cathode-band marking. Bidirectional operation requires the "CA" variant (e.g., P6SMB220CA), which exhibits symmetrical clamping in both polarities. Using P6SMB220AHM3_A/I in reverse-biased AC applications would result in forward conduction and potential failure; always verify polarity alignment in schematic and layout for P6SMB220AHM3_A/I.
P6SMB220AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 1.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB220AHM3_A/I FAQ
1.How can I place an order for P6SMB220AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220AHM3_A/I 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 P6SMB220AHM3_A/I reliable?
The price and inventory of P6SMB220AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB220AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB220AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220AHM3_A/I?
P6SMB220AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220AHM3_A/I 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 P6SMB220AHM3_A/I?
For technical support, including P6SMB220AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220AHM3_A/I requirements.
6.How does Aetrix verify that P6SMB220AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB220AHM3_A/I 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 P6SMB220AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB220AHM3_A/I?
All P6SMB220AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220AHM3_A/I, 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 P6SMB220AHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB220AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220AHM3_A/I Tags
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