My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ22CAHE3/5B
;;2.jpg)
- Part No.:
- SMBJ22CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ22CAHE3/5B.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,126
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ22CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 22 V stand-off voltage (VWM), 35.5 V maximum clamping voltage (VC) at 16.9 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 µs waveform - deployed in industrial sensor interfaces and automotive ECUs for ESD and load-dump protection.
For engineers reviewing the SMBJ22CAHE3/5B datasheet, SMBJ22CAHE3/5B pinout, SMBJ22CAHE3/5B application, or SMBJ22CAHE3/5B equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both polarities due to its bidirectional construction. Its glass-passivated junction ensures stable VBR (24.4–26.9 V at 1 mA) and low incremental surge resistance, enabling fast response (<1 ps) to transient events such as inductive switching spikes and lightning-induced surges.
The SMBJ22CAHE3/5B is rated for 600 W peak pulse power under 10/1000 µs waveform with 0.01% duty cycle, derated linearly above 25 °C ambient per Fig. 2. Its AEC-Q101 qualification confirms suitability for automotive electronics, while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 24.4 V / 26.9 V at IT = 1 mA - Confirmed bidirectional breakdown window; ensures consistent clamping onset across polarity. |
| VC @ IPPM | 35.5 V at 16.9 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak transient energy handling capacity; validates robustness against IEC 61000-4-5 Level 4 surges. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; guides PCB thermal layout. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; reverse-bias reference for bidirectional clamping | Terminal where transient voltage exceeding VWM in either polarity initiates avalanche conduction. |
| Cathode | Current exit terminal in forward bias; symmetric counterpart to anode in bidirectional mode | Paired terminal completing low-impedance surge path; no band marking distinguishes it from anode in CA devices. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) without derating on standard PCB pads. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics with extended lifetime requirements. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking preconditioning. |
| Glass passivated junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling and humidity stress. |
| Bidirectional symmetry (CA suffix) | Eliminates polarity dependency in AC-coupled or floating signal lines such as CAN bus stubs and sensor bridges. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller inputs from load-dump transients (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between power rail and ground, responding within <1 ps to suppress >100 V spikes. Use Value: Limits MCU supply rail to ≤35.5 V during 600 W surges, preventing latch-up and permanent damage in AEC-Q100-compliant systems. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD (IEC 61000-4-2 ±8 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional shunt protector on differential or single-ended sensor lines, maintaining signal integrity during fast transients. Use Value: Clamps ±22 V transients to ±35.5 V with sub-nanosecond response, preserving 16-bit ADC accuracy and avoiding false triggers. |
| Telecom Interface Surge Suppression | Consumer USB Port ESD Protection |
|
Use Scenario: Safeguarding RS-485 transceivers in building automation networks exposed to induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Primary-level TVS on bus lines (A/B), coordinated with secondary GDT or polymer PTC for multi-stage protection. Use Value: Absorbs 600 W surge energy while holding line differential voltage below transceiver absolute maximum ratings (±12 V). |
Use Scenario: Front-end protection for USB 2.0 data lines (D+/D−) in portable audio devices subjected to human-body-model ESD. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ ≈ 150 pF at 0 V) placed adjacent to connector to minimize signal distortion. Use Value: Prevents ESD-induced latch-up in USB PHY ICs by clamping ±15 kV discharges to <±35.5 V without degrading 480 Mbps signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification. | No functional difference; selected when halogen-free material compliance is mandated by OEM sustainability policies. | Direct substitution if halogen-free bill-of-materials is required; same footprint, thermal, and clamping performance. |
| SMCJ22CAHE3/5B | Higher 1500 W peak pulse power rating; larger SMC (DO-214AB) package (7.11 mm × 6.22 mm). | Used where higher surge margin is needed (e.g., 24 V industrial PLC backplanes), but requires PCB layout change. | Choose when system-level surge testing exceeds 600 W; not pin-compatible due to larger package and different pad layout. |
Compared with SMBJ22CA-M3/5B, the SMBJ22CAHE3/5B offers identical protection performance with standard RoHS compliance; versus SMCJ22CAHE3/5B, it trades lower surge rating for compact SMB footprint-critical for space-constrained automotive modules.
Availability
SMBJ22CAHE3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom infrastructure projects requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for SMBJ22CAHE3/5B 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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The SMBJ series delivers standardized transient suppression in compact surface-mount packages, engineered specifically for cost-sensitive yet mission-critical applications demanding AEC-Q101 validation and robust surge immunity.
FAQ
What is the clamping voltage of SMBJ22CAHE3/5B at its rated peak pulse current?
The SMBJ22CAHE3/5B has a maximum clamping voltage (VC) of 35.5 V at 16.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events. The SMBJ22CAHE3/5B maintains this clamping performance across its full operating temperature range (–55 to +150 °C) with minimal drift.
Is SMBJ22CAHE3/5B suitable for automotive applications?
Yes, SMBJ22CAHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and infotainment systems. Its qualification covers temperature cycling, highly accelerated life testing (HALT), and ESD robustness per ISO 10605. The SMBJ22CAHE3/5B also meets MSL Level 1 for lead-free reflow, supporting modern automotive manufacturing processes without baking requirements.
How does the bidirectional design of SMBJ22CAHE3/5B affect its circuit implementation?
The bidirectional design of SMBJ22CAHE3/5B eliminates polarity constraints, allowing direct placement across AC-coupled lines, differential pairs (e.g., CAN, RS-485), or floating sensor outputs without orientation checks. Unlike unidirectional variants, SMBJ22CAHE3/5B has no cathode band marking and exhibits matched VBR (24.4–26.9 V) in both directions - ensuring symmetrical clamping response essential for balanced signal integrity in noise-sensitive applications.
What is the thermal resistance of SMBJ22CAHE3/5B, and how does it impact PCB layout?
The SMBJ22CAHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay specification; reducing pad area increases RθJA, risking thermal runaway during repetitive surges. For high-duty-cycle applications, designers should verify junction temperature rise using IPPM derating curves in Figure 2 of the SMBJ22CAHE3/5B datasheet.
Does SMBJ22CAHE3/5B meet RoHS and REACH compliance standards?
Yes, SMBJ22CAHE3/5B is RoHS-compliant per EU Directive 2011/65/EU and satisfies REACH SVHC requirements. The "HE3" suffix denotes RoHS-compliant construction with lead-free matte tin plating and halogen-free molding compound. Compliance documentation, including test reports and declarations of conformity, is available through Vishay's official portal and Aetrix Electronics' quality portal for SMBJ22CAHE3/5B.
SMBJ22CAHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 16.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ22CAHE3/5B FAQ
1.How can I place an order for SMBJ22CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ22CAHE3/5B 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 SMBJ22CAHE3/5B reliable?
The price and inventory of SMBJ22CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ22CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ22CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ22CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ22CAHE3/5B?
SMBJ22CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ22CAHE3/5B 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 SMBJ22CAHE3/5B?
For technical support, including SMBJ22CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ22CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ22CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ22CAHE3/5B 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 SMBJ22CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ22CAHE3/5B?
All SMBJ22CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ22CAHE3/5B, 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 SMBJ22CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ22CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ22CAHE3/5B 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 …
