My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB22CA-M3/5B
;;2.jpg)
- Part No.:
- P6SMB22CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CA-M3/5B.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,997
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB22CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal and power lines. It features a 22 V standoff voltage (VWM), 24.4–26.9 V breakdown voltage (VBR) at 1 mA, 30.6 V maximum clamping voltage (VC) at 19.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB22CA-M3/5B datasheet, P6SMB22CA-M3/5B pinout, P6SMB22CA-M3/5B application, or P6SMB22CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compliance with IEC 61000-4-2/4-4/4-5 surge immunity standards.
Technical Context
The P6SMB22CA-M3/5B operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at 18.8 V), while its low incremental surge resistance enables rapid energy diversion during ESD or lightning-induced surges.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads per terminal, it delivers 600 W peak pulse power handling under repetitive 0.01% duty cycle conditions and supports operating junction temperatures from –65 °C to +150 °C - meeting J-STD-020 MSL Level 1 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 18.8 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown |
| VBR (Breakdown Voltage) | 20.9–23.1 V at 1 mA - precise avalanche onset range ensuring predictable clamping threshold |
| VC (Clamping Voltage) | 30.6 V at 19.6 A IPPM - peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream device voltage tolerance |
| PPPM (Peak Pulse Power) | 600 W - transient energy absorption capacity under standardized 10/1000 μs waveform; determines surge survivability |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; informs derating requirements above 25 °C ambient |
| TJ max. | +150 °C - maximum allowable junction temperature; sets upper limit for thermal design and power cycling |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Bidirectional terminals - either terminal serves as anode or cathode depending on transient polarity; no band marking required |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 600 W peak pulse power | Handles high-energy transients such as IEC 61000-4-5 Level 4 (4 kV line-to-earth) without degradation |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow |
| Halogen-free & RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for industrial and automotive end equipment |
| AEC-Q101 qualified option (_B suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Applications
| Industrial Motor Drives | Automotive Sensor Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and feedback signal lines against inductive kickback from BLDC motor switching. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient spikes on isolated analog sensor inputs and PWM control lines. Use Value: Prevents latch-up or permanent damage to microcontrollers and op-amps exposed to >1 kV fast-rising transients. |
Use Scenario: Surge suppression on LIN bus and analog outputs of pressure/temperature sensors in engine control modules. IC Role / Device Role / Timing Role: Standoff voltage (18.8 V) aligns with 12 V automotive battery rail; clamps load-dump and ISO 7637-2 pulses. Use Value: Maintains signal integrity during cranking (6.0–9.0 V) and protects against 100 V/50 ms load-dump events per ISO 16750-2. |
| Telecom Power Supplies | Consumer USB-C Port Protection |
Use Scenario: Input-stage protection of 24 V/48 V telecom DC-DC converters against lightning-induced surges on primary-side rails. IC Role / Device Role / Timing Role: First-line defense clamping transients before upstream fuse or PMIC; placed adjacent to connector entry point. Use Value: Limits clamped voltage to 30.6 V, well below typical 36 V input rating of secondary-side controllers and MOSFETs. |
Use Scenario: Bidirectional overvoltage clamp on USB-C CC and VCONN lines susceptible to hot-plug ESD and cable coupling. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) TVS preserving signal integrity up to 10 Mbps without distortion. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) while maintaining sub-1 nA leakage at 5 V, avoiding false detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA-TP | Same VWM (18.8 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for IEC 61000-4-5 Level 3+ environments | Select when board space is constrained and surge threat level is ≤400 W; verify thermal margin at full load |
| 1.5KE22CA | Same VWM/VBR/VC specs, but through-hole DO-201 package; higher IPPM (27.3 A), same 600 W rating | Requires PCB through-holes and wave soldering; unsuitable for fully SMT designs | Choose only for legacy through-hole assemblies or where mechanical robustness outweighs SMT efficiency |
Compared with P6SMB22CA-M3/5B, SMAJ22CA-TP trades peak power and thermal performance for compact size, while 1.5KE22CA retains identical electrical specs but mandates through-hole assembly - making P6SMB22CA-M3/5B the optimal balance of SMT compatibility, 600 W capability, and automotive-ready qualification path.
Availability
P6SMB22CA-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, telecom power supplies, and consumer USB-C port protection requiring stable component supply across long-lifecycle programs.
Supply support for P6SMB22CA-M3/5B 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, power efficiency, and automotive qualification.
The P6SMB Series targets cost-sensitive, high-volume transient protection needs in industrial, automotive, and telecom systems - delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 options.
FAQ
What does the "CA" suffix mean in P6SMB22CA-M3/5B?
The "CA" suffix denotes a bidirectional configuration - meaning the P6SMB22CA-M3/5B provides symmetrical clamping for positive and negative transients without polarity dependence. Unlike unidirectional variants (e.g., P6SMB22A), it has no cathode band marking and is used where AC signals, floating grounds, or dual-polarity surges require protection. This makes P6SMB22CA-M3/5B ideal for differential buses and sensor inputs.
Is P6SMB22CA-M3/5B AEC-Q101 qualified?
The base P6SMB22CA-M3/5B is halogen-free and RoHS-compliant but not AEC-Q101 qualified by default. However, Vishay offers the AEC-Q101 variant as P6SMB22CAHM3_B/5B (with "_B" revision code). Engineers must specify the HM3_B suffix to receive automotive-qualified units - which undergo extended temperature cycling, HTRB, and ESD validation beyond commercial-grade P6SMB22CA-M3/5B.
How does P6SMB22CA-M3/5B compare to P6SMB22A-M3/5B in circuit design?
P6SMB22CA-M3/5B is bidirectional with symmetrical VBR and VC in both directions, while P6SMB22A-M3/5B is unidirectional and requires correct cathode orientation. In circuits with AC-coupled signals or undefined polarity (e.g., LIN bus, RS-485), P6SMB22CA-M3/5B eliminates orientation errors and simplifies layout. Its 1.0 μA max leakage at VWM matches the unidirectional version, ensuring equal bias stability.
What is the maximum PCB pad size recommended for P6SMB22CA-M3/5B thermal performance?
Vishay specifies that P6SMB22CA-M3/5B achieves rated 600 W peak pulse power when mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad area lowers thermal dissipation and de-rates IPPM and PPPM - for example, halving pad size may reduce usable peak power by ~30%. Always follow the exact pad layout in Vishay's DO-214AA outline drawing (Doc. #88370, pg. 5) to maintain P6SMB22CA-M3/5B performance claims.
Can P6SMB22CA-M3/5B be used in parallel for higher surge current handling?
No - P6SMB22CA-M3/5B should not be paralleled due to mismatched VBR tolerances (±5%) causing uneven current sharing and potential thermal runaway. For higher surge capability, select a single higher-rated device (e.g., P6SMB27CA-M3/5B) or use a TVS array with matched characteristics. Parallel use of discrete P6SMB22CA-M3/5B units voids guaranteed clamping performance and is not supported by Vishay's design guidelines.
P6SMB22CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB22CA-M3/5B FAQ
1.How can I place an order for P6SMB22CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CA-M3/5B 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 P6SMB22CA-M3/5B reliable?
The price and inventory of P6SMB22CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22CA-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB22CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CA-M3/5B?
P6SMB22CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CA-M3/5B 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 P6SMB22CA-M3/5B?
For technical support, including P6SMB22CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CA-M3/5B requirements.
6.How does Aetrix verify that P6SMB22CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB22CA-M3/5B 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 P6SMB22CA-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB22CA-M3/5B?
All P6SMB22CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CA-M3/5B, 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 P6SMB22CA-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB22CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22CA-M3/5B 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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 …
