My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ150CAHE3/52
;;2.jpg)
- Part No.:
- SMBJ150CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHE3/52.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,359
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ150CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 150 V standoff voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 243 V at 2.5 A, and operates across –55 °C to +150 °C junction temperature range.
For engineers reviewing the SMBJ150CAHE3/52 datasheet, SMBJ150CAHE3/52 pinout, SMBJ150CAHE3/52 application, or SMBJ150CAHE3/52 equivalent, key selection considerations include bidirectional surge suppression capability, AEC-Q101 qualification for automotive use, low clamping ratio (VC/VBR ≈ 1.46), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on PCBs handling inductive switching transients.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ps) to transient overvoltages, with symmetrical bidirectional conduction enabling protection of AC-coupled or floating signal lines without polarity concerns. Its low incremental surge resistance ensures minimal voltage overshoot during high-current surges up to 2.5 A (IPPM).
The device meets UL 497B recognition (QVGQ2) and is rated for repetitive 10/1000 µs waveform pulses at 0.01% duty cycle. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation under sustained surge conditions when mounted per recommended 5.0 mm × 5.0 mm copper pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for protected circuitry. |
| VBR (min/max) | 167 V / 185 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 243 V at 2.5 A - Clamped voltage during 600 W surge; determines maximum stress imposed on downstream components. |
| PPPM | 600 W - Peak pulse power handling (10/1000 µs waveform); quantifies single-event surge energy absorption capacity. |
| IPPM | 2.5 A - Peak pulse current corresponding to 600 W clamping; used for PCB trace and fuse sizing. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; compatible with standard reflow profiles up to 260 °C peak. |
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 solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | One side of symmetrical PN junction; connects to line under protection (e.g., CAN_H or RS-485 A). |
| Cathode | Terminal K | Other side of symmetrical PN junction; connects to same line (e.g., CAN_H or RS-485 A), forming bidirectional clamp path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| 600 W peak pulse power | Handles high-energy transients from load dump or ESD events without degradation in automotive and industrial systems. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage stress on protected ICs compared to alternatives with higher ratios (>1.55). |
| UL 497B recognized (QVGQ2) | Meets safety standards for telecom and data line protectors, enabling compliance in certified end equipment. |
| RoHS-compliant & halogen-free option | Base P/NHE3 denotes RoHS-compliant and AEC-Q101 qualified; HM3 suffix adds halogen-free construction. |
Applications
| Automotive Power Line Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (load dump). IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed between power rail and ground, responding within picoseconds to suppress transients above 150 V. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and power management ICs by limiting peak voltage to ≤243 V during 2.5 A surges. |
Use Scenario: Safeguarding differential RS-485 transceivers (e.g., THVD1550) in factory automation networks exposed to cable ESD and ground loop surges. IC Role / Device Role / Timing Role: Placed across A/B bus lines or from each line to ground, providing symmetrical clamping independent of signal polarity. Use Value: Maintains signal integrity by clamping common-mode transients while preserving DC bias and differential swing due to low leakage (<1 µA at 150 V). |
| Consumer USB-C Port Protection | Telecom DSL Line Interface |
|
Use Scenario: Shielding USB-C CC and VBUS lines in portable chargers and docks from human-body-model (HBM) ESD events up to ±15 kV. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed inline with signal/power paths, leveraging fast response to divert ESD current before IC input stages. Use Value: Achieves IEC 61000-4-2 Level 4 compliance without degrading high-speed signaling, thanks to sub-100 pF junction capacitance at zero bias. |
Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Installed between tip/ring and ground in line interface modules, absorbing multi-kV transients per ITU-T K.20/K.21 standards. Use Value: Enables UL 497B-certified system-level surge immunity up to 6 kV (10/700 µs) with stable clamping performance across –40 °C to +85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA-M3/52 | Halogen-free, RoHS-compliant, same electrical specs and AEC-Q101 qualification; differs only in molding compound composition. | No functional difference; selected where halogen-free compliance is mandated by OEM environmental policy. | Direct material substitution when halogen-free requirement applies; identical footprint and thermal behavior. |
| SMCJ150CAHE3/52 | Same VWM, VBR, and VC, but in larger SMC (DO-214AB) package with 1500 W PPPM rating and higher IPPM (5.0 A). | Better suited for higher-energy threats (e.g., ISO 16750-2 load dump); requires larger PCB area and different pad layout. | Choose when surge threat level exceeds 600 W; not pin-compatible-requires layout change. |
Compared with SMBJ150CAHE3/52, the M3 variant offers identical protection performance with halogen-free construction, while the SMCJ150CAHE3/52 delivers 2.5× higher surge power handling in a physically larger package-enabling design flexibility for varying threat severity without changing circuit topology.
Availability
SMBJ150CAHE3/52 is available at Aetrix Electronics and suitable for automotive control units, industrial communication interfaces, consumer USB-C power delivery systems, and telecom line cards requiring stable component supply with AEC-Q101 assurance and long-term lifecycle support.
Supply support for SMBJ150CAHE3/52 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, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where consistent clamping performance and qualification to AEC-Q101 or UL standards are mandatory.
FAQ
What is the clamping voltage of SMBJ150CAHE3/52 at its rated peak pulse current?
The SMBJ150CAHE3/52 has a maximum clamping voltage (VC) of 243 V when subjected to its peak pulse current (IPPM) of 2.5 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024. The SMBJ150CAHE3/52 maintains this clamping performance across its full operating temperature range, making it suitable for designs requiring predictable overvoltage limiting.
Is SMBJ150CAHE3/52 suitable for automotive applications?
Yes, SMBJ150CAHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliance and qualification. It supports operating junction temperatures from –55 °C to +150 °C and meets requirements for load dump, jump start, and ESD immunity per ISO 7637-2 and ISO 10605. The SMBJ150CAHE3/52 is commonly deployed in body control modules, infotainment power supplies, and sensor interface circuits.
How does the bidirectional configuration of SMBJ150CAHE3/52 affect its circuit implementation?
The SMBJ150CAHE3/52 has no polarity marking and conducts symmetrically in both directions, allowing direct placement across differential lines (e.g., RS-485 A/B) or between any two nodes requiring mutual overvoltage protection. Unlike unidirectional TVS diodes, the SMBJ150CAHE3/52 eliminates the need for orientation verification during assembly and avoids forward-conduction issues on AC or floating signals. Its bidirectional behavior is intrinsic to the device structure-not achieved via back-to-back unidirectional dies.
What is the thermal resistance of SMBJ150CAHE3/52, and how does it impact PCB layout?
The SMBJ150CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain reliability under repeated surges, PCB layout must replicate this pad area and avoid excessive trace length or narrow connections. The SMBJ150CAHE3/52's thermal performance directly affects its ability to dissipate residual energy after clamping.
Does SMBJ150CAHE3/52 meet UL safety certification?
Yes, SMBJ150CAHE3/52 is Underwriters Laboratories (UL) recognized under standard UL 497B for protectors, with file number E136766. This certification covers both unidirectional and bidirectional configurations and validates its suitability for use in telecom, data, and signal line protection applications requiring third-party safety approval. The UL listing applies specifically to the SMBJ150CAHE3/52 part number as manufactured and tested by Vishay.
SMBJ150CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
SMBJ150CAHE3/52 FAQ
1.How can I place an order for SMBJ150CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHE3/52 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 SMBJ150CAHE3/52 reliable?
The price and inventory of SMBJ150CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHE3/52?
SMBJ150CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHE3/52 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 SMBJ150CAHE3/52?
For technical support, including SMBJ150CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ150CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHE3/52 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 SMBJ150CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHE3/52?
All SMBJ150CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHE3/52, 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 SMBJ150CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ150CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHE3/52 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 …
