My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ22C-E3/52
;;2.jpg)
- Part No.:
- SMBJ22C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ22C-E3/52.pdf
- Description:
- TVS DIODE 22VWM 39.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,172
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ22C-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 22 V standoff voltage (VWM), 24.4–26.9 V breakdown voltage (VBR) at 1 mA, 35.5 V maximum clamping voltage (VC) at 16.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMBJ22C-E3/52 datasheet, SMBJ22C-E3/52 pinout, SMBJ22C-E3/52 application, or SMBJ22C-E3/52 equivalent, key selection considerations include clamping performance under 16.9 A surge, thermal resistance (RθJA = 100 °C/W), RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for low incremental surge resistance and sub-nanosecond response time. Its electrical behavior follows the IEC 61000-4-5 surge immunity standard and ANSI/IEEE C62.35 definitions for transient suppression.
The device is rated for -55 °C to +150 °C operating junction temperature, derates linearly above 25 °C ambient per Fig. 2, and meets J-STD-020 MSL Level 1 with 260 °C lead-free reflow peak. It delivers 35.5 V clamping at 16.9 A (10/1000 µs), with 1.0 µA max reverse leakage at 22 V and 0.096 %/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 22 V - Maximum continuous reverse voltage before significant leakage; defines circuit operating margin before clamping initiates. |
| VBR (Breakdown Voltage) | 24.4–26.9 V at 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on during overvoltage events without premature conduction. |
| VC (Clamping Voltage) | 35.5 V at 16.9 A (10/1000 µs) - Peak voltage seen by protected IC/MOSFET during worst-case surge; determines downstream component voltage stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capability; validated with 0.01 % duty cycle repetitive surges. |
| RθJA (Junction-to-Ambient) | 100 °C/W - Thermal resistance under standard 0.2" × 0.2" copper pad layout; guides PCB copper area requirements for thermal management. |
| IFSM (Surge Current) | 100 A (8.3 ms half-sine) - Unidirectional surge withstand rating; supports protection against high-energy AC line transients. |
| Leakage (ID) | 1.0 µA max at 22 V - Low standby power loss and minimal signal integrity impact in high-impedance sensor or data lines. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking on unidirectional variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential rail in unidirectional clamp configuration; enables low-VF path during surge. |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., I/O, power rail); defines polarity-sensitive placement for correct clamping direction. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation under repeated events. |
| 35.5 V clamping at 16.9 A | Provides safe voltage ceiling for 3.3 V or 5 V logic interfaces, MOSFET gate drivers, and microcontroller I/O pins. |
| Glass passivated junction | Ensures stable VBR and low leakage across temperature (-55 °C to +150 °C), critical for automotive and industrial environments. |
| MSL Level 1, 260 °C peak | Supports single-pass lead-free reflow assembly without moisture-induced failure; eliminates bake-out requirement. |
| RoHS-compliant, matte tin plating | Guarantees solderability and intermetallic reliability in high-volume SMT production with J-STD-002 compliance. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
Use Scenario: Protection of gate driver inputs and feedback lines in BLDC motor inverters exposed to inductive kickback from 24 V DC bus switching. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between gate driver output and MOSFET gate, referenced to local ground. Use Value: Limits transient voltage to ≤35.5 V during 100 ns–1 µs spikes, preventing gate oxide rupture in 40 V-rated Si MOSFETs. |
Use Scenario: ESD and load-dump protection on LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between signal line and chassis ground, with 22 V VWM matching sensor supply range. Use Value: Clamps 10/1000 µs load-dump pulses (up to 60 V) to 35.5 V while maintaining <1 µA leakage at 22 V for signal accuracy. |
| Telecom Power Input | Consumer USB Port Protection |
Use Scenario: Secondary-side transient suppression on 24 V or 48 V telecom power distribution boards subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS mounted at DC input connector, shunting surge energy to system ground. Use Value: Absorbs 600 W peak pulse without failure, with RθJA = 100 °C/W enabling thermal design using standard 5 mm × 5 mm copper pads. |
Use Scenario: Overvoltage protection on VBUS line of USB 2.0 Type-A ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Clamp diode between VBUS and GND, selected for 22 V VWM to avoid interference with 5 V nominal operation. Use Value: Responds in <1 ns to ESD events (IEC 61000-4-2 ±15 kV contact), limiting VBUS overshoot to ≤35.5 V during 30 A TLP pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A-E3/52 | Identical VWM, VBR, and VC; same SMB package and RoHS compliance; differs only in part suffix convention ('A' vs 'C' denotes unidirectional in Vishay's naming). | No functional difference; both rated for identical surge conditions and thermal profiles. | Select SMBJ22A-E3/52 if sourcing from legacy BOMs or distributors listing 'A' suffix as primary stock code. |
| SMCJ22A-E3/52 | Same electrical specs but in larger SMC (DO-214AB) package; 50 % higher PPPM (1500 W), lower RθJA (60 °C/W), and 2× PCB footprint. | Better thermal performance and higher surge margin, but requires layout change and increased board area. | Choose SMCJ22A-E3/52 when system-level surge testing exceeds 600 W or when extended thermal cycling life is required. |
Compared with SMBJ22C-E3/52, SMBJ22A-E3/52 offers identical protection performance in the same footprint, while SMCJ22A-E3/52 trades compactness for higher surge endurance and improved thermal derating-making it suitable for harsher environments where layout space permits.
Availability
SMBJ22C-E3/52 is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom power input, and consumer USB port protection requiring stable component supply, RoHS-compliant manufacturing, and MSL Level 1 reflow compatibility.
Supply support for SMBJ22C-E3/52 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 optimization.
The SMBJ series is engineered for high-reliability transient suppression in space-constrained SMT designs, targeting automotive, industrial, and telecom systems where fast clamping, low leakage, and AEC-Q101 qualification (in HE3 variants) are critical.
FAQ
What is the clamping voltage of SMBJ22C-E3/52 at its rated peak pulse current?
The SMBJ22C-E3/52 has a maximum clamping voltage (VC) of 35.5 V at 16.9 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ22C-E3/52 maintains this clamping performance across its full operating temperature range when mounted per recommended pad layout.
Is SMBJ22C-E3/52 suitable for automotive applications?
SMBJ22C-E3/52 is RoHS-compliant and qualified to MSL Level 1, but it is not AEC-Q101 certified. For automotive use, Vishay offers the SMBJ22CHE3 variant (with HE3 suffix), which carries AEC-Q101 qualification. The SMBJ22C-E3/52 remains appropriate for non-safety-critical consumer or industrial applications where AEC-Q101 is not mandated. Always verify qualification status via the full part number before deployment in automotive ECUs.
How does the SMBJ22C-E3/52 differ from SMBJ22A-E3/52?
SMBJ22C-E3/52 and SMBJ22A-E3/52 are functionally identical unidirectional TVS diodes with matching VWM (22 V), VBR (24.4–26.9 V), VC (35.5 V), and package (SMB). The 'C' and 'A' suffixes both denote unidirectional polarity in Vishay's naming convention; no electrical, thermal, or mechanical differences exist between them. SMBJ22C-E3/52 is a valid, documented ordering variant of the same device family.
What is the maximum reverse leakage current for SMBJ22C-E3/52 at 22 V?
The SMBJ22C-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated standoff voltage of 22 V and 25 °C ambient temperature. This low leakage ensures minimal power loss and signal distortion in high-impedance circuits such as sensor bias networks or analog front-ends. Leakage increases predictably with temperature but remains below 10 µA up to 85 °C per Vishay's characterization data.
Can SMBJ22C-E3/52 be used in bidirectional configurations?
No-SMBJ22C-E3/52 is strictly a unidirectional TVS diode, indicated by its 'C' suffix and cathode band marking. For bidirectional protection, Vishay specifies the 'CA' suffix (e.g., SMBJ22CA). Using SMBJ22C-E3/52 in reverse-biased mode risks permanent junction damage due to lack of symmetric breakdown characteristics. Always match the device polarity to the circuit's surge direction and grounding scheme.
SMBJ22C-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 39.4V
- Current - Peak Pulse (10/1000µs):
- 15.2A
- 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 (SMBJ)
SMBJ22C-E3/52 FAQ
1.How can I place an order for SMBJ22C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ22C-E3/52 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 SMBJ22C-E3/52 reliable?
The price and inventory of SMBJ22C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ22C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ22C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ22C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ22C-E3/52?
SMBJ22C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ22C-E3/52 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 SMBJ22C-E3/52?
For technical support, including SMBJ22C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ22C-E3/52 requirements.
6.How does Aetrix verify that SMBJ22C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ22C-E3/52 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 SMBJ22C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ22C-E3/52?
All SMBJ22C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ22C-E3/52, 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 SMBJ22C-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ22C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ22C-E3/52 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 …
