My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ22C-E3/57T
- Part No.:
- SMCJ22C-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ22C-E3/57T.pdf
- Description:
- TVS DIODE 22VWM 39.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,196
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ22C-E3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection on signal and power lines. It features a 22 V stand-off voltage (VWM), 35.5 V maximum clamping voltage at 42.3 A peak pulse current, 1500 W peak pulse power rating, and AEC-Q101 qualification for automotive reliability.
For engineers reviewing the SMCJ22C-E3/57T datasheet, SMCJ22C-E3/57T pinout, SMCJ22C-E3/57T application, or SMCJ22C-E3/57T equivalent, key selection criteria include bi-directional clamping symmetry, low incremental surge resistance, UL 94 V-0 molding compound, J-STD-020 MSL Level 1 compliance, and suitability for inductive load switching transients in automotive ECUs and sensor interfaces.
Technical Context
The SMCJ22C-E3/57T operates as a bi-directional avalanche diode with symmetrical breakdown characteristics - minimum VBR of 24.4 V and maximum of 26.9 V at 1 mA test current. Its clamping behavior is defined by a 10/1000 μs waveform, delivering 35.5 V VC at IPPM = 42.3 A under standard mounting conditions (8.0 mm × 8.0 mm copper pads).
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The device is glass passivated, RoHS-compliant (E3 suffix), and qualified per AEC-Q101 - confirming suitability for under-hood automotive environments where thermal cycling and mechanical shock resistance are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min / max | 24.4 V / 26.9 V at IT = 1 mA - ensures consistent bi-directional breakdown across production lots |
| VC @ IPPM | 35.5 V at 42.3 A (10/1000 μs) - defines worst-case voltage seen by protected circuit during surge |
| PPPM | 1500 W - peak transient energy absorption capability without failure |
| ID @ VWM | 1.0 μA - ultra-low leakage preserves signal integrity in high-impedance sensor lines |
| TJ max | +150 °C - supports operation in engine control units and powertrain modules |
| Package | DO-214AB (SMCJ) - surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
SMCJ22C-E3/57T uses the DO-214AB (SMCJ) package - a low-profile, molded plastic case with J-bend leads, UL 94 V-0 rated, and matte tin-plated terminals solderable per J-STD-002. Bi-directional devices have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals - either lead serves as anode or cathode depending on transient polarity; no band marking required |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating differential lines without polarity concerns |
| AEC-Q101 qualification | Validates reliability for automotive applications including ECU, ADAS sensors, and body electronics |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without moisture-induced damage or popcorn effect |
| Glass passivated junction | Ensures stable VBR and low leakage over temperature and lifetime vs. epoxy-passivated alternatives |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes let-through voltage stress on downstream ICs such as CAN transceivers or microcontrollers |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and inductive kick. IC Role / Device Role / Timing Role: Voltage clamping element placed directly at connector entry point to shunt transients before reaching ADC input or signal conditioner. Use Value: With 35.5 V clamping and 1.0 μA leakage, SMCJ22C-E3/57T prevents sensor signal corruption while avoiding DC loading on precision ratiometric circuits. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD and ISO 7637-2 pulse 1/2a/5a in vehicle infotainment gateways. IC Role / Device Role / Timing Role: Bi-directional TVS pair (one per line) placed adjacent to CAN transceiver I/O pins to clamp common-mode surges. Use Value: Symmetrical 24.4–26.9 V breakdown ensures balanced clamping on both lines, preserving differential signaling integrity during fast transients. |
| Power Supply Input Protection | Consumer Appliance Motor Drive |
Use Scenario: Secondary-side overvoltage suppression on 24 V DC input rails feeding industrial PLC I/O modules. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between rail and ground to absorb switching spikes from relay coils or solenoid drivers. Use Value: 1500 W PPPM rating handles repetitive 10/1000 μs pulses from inductive loads without degradation, extending system MTBF. |
Use Scenario: Protecting MCU GPIOs and gate drivers in smart washing machine motor control boards subjected to brush-commutator noise. IC Role / Device Role / Timing Role: Localized TVS on motor phase sense lines and hall-effect feedback paths to prevent false triggering. Use Value: DO-214AB footprint allows placement within 2 mm of sensitive nodes, minimizing loop inductance and improving sub-100 ns response fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC22C | Lower PPPM (600 W), higher VC (40 V @ 25 A), same VWM (22 V), SOD-123FL package | Not suitable for high-energy transients like ISO 7637-2 Pulse 5a; limited to low-power consumer ports | Select only when board space is constrained and surge energy is < 50 mJ |
| SMCJ22CAHE3/57T | Identical electrical specs but HE3 suffix denotes AEC-Q101 qualification with enhanced whisker resistance (JESD 201 Class 2) | Required for safety-critical automotive subsystems requiring extended whisker reliability beyond standard AEC-Q101 | Prefer for ASIL-B or higher systems where long-term intermetallic growth must be mitigated |
Compared with SAC22C and SMCJ22CAHE3/57T, the SMCJ22C-E3/57T delivers optimal balance of 1500 W surge capacity, automotive-grade qualification, and cost-effective commercial-grade reliability - making it ideal for non-safety-critical but thermally demanding applications like body control modules and HVAC actuators.
Availability
SMCJ22C-E3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and power supply input protection requiring stable component supply and full traceability.
Supply support for SMCJ22C-E3/57T 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, efficiency, and automotive-grade validation.
The SMCJ series was developed specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against ISO 7637, IEC 61000-4-2/4/5, and load-dump events is mandatory.
FAQ
What is the clamping voltage of SMCJ22C-E3/57T under standard test conditions?
The SMCJ22C-E3/57T has a maximum clamping voltage (VC) of 35.5 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 42.3 A. This value is measured with the device mounted on 8.0 mm × 8.0 mm copper pads per terminal, and reflects the worst-case voltage imposed on protected circuitry during surge events. The SMCJ22C-E3/57T maintains this performance across its full operating temperature range.
Is SMCJ22C-E3/57T suitable for automotive applications?
Yes, the SMCJ22C-E3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, glass passivated junction, and MSL Level 1 reflow compatibility make it appropriate for engine control units, sensor interfaces, and body electronics. The SMCJ22C-E3/57T meets requirements for ISO 7637-2 pulse immunity and load-dump protection in non-safety-critical systems.
How does the bi-directional design of SMCJ22C-E3/57T affect its PCB layout?
The bi-directional nature of the SMCJ22C-E3/57T eliminates polarity concerns - no cathode band marking is present, and either terminal functions identically under positive or negative transients. This simplifies PCB routing for AC-coupled or floating lines and avoids orientation errors during automated placement. Layout best practice remains placing the SMCJ22C-E3/57T as close as possible to the protected node with minimal trace length to preserve low-inductance clamping.
What is the difference between SMCJ22C-E3/57T and SMCJ22CAHE3/57T?
The SMCJ22C-E3/57T and SMCJ22CAHE3/57T share identical electrical specifications and DO-214AB packaging, but differ in qualification level: the HE3 suffix indicates enhanced whisker resistance per JESD 201 Class 2, required for higher-reliability automotive subsystems. The SMCJ22C-E3/57T meets standard AEC-Q101 (Class 1A whisker test), while SMCJ22CAHE3/57T adds process controls for extended intermetallic stability. Both are valid for most ECU applications, but SMCJ22C-E3/57T is optimized for cost-sensitive volume production.
Does SMCJ22C-E3/57T require heatsinking in typical applications?
No dedicated heatsink is required for the SMCJ22C-E3/57T in standard surge protection roles, as its 6.5 W steady-state power dissipation (PD) and 75 °C/W junction-to-ambient thermal resistance are managed via standard PCB copper pour. However, for repetitive surge events exceeding 1 Hz or ambient temperatures above 70 °C, increasing copper pad area beyond the minimum 8.0 mm × 8.0 mm per terminal is recommended to maintain SMCJ22C-E3/57T junction temperature below 150 °C.
SMCJ22C-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 38.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SMCJ22C-E3/57T FAQ
1.How can I place an order for SMCJ22C-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ22C-E3/57T 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 SMCJ22C-E3/57T reliable?
The price and inventory of SMCJ22C-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ22C-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ22C-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ22C-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ22C-E3/57T?
SMCJ22C-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ22C-E3/57T 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 SMCJ22C-E3/57T?
For technical support, including SMCJ22C-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ22C-E3/57T requirements.
6.How does Aetrix verify that SMCJ22C-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ22C-E3/57T 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 SMCJ22C-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ22C-E3/57T?
All SMCJ22C-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ22C-E3/57T, 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 SMCJ22C-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ22C-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ22C-E3/57T 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 …
