My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ54CAHE3/52
;;2.jpg)
- Part No.:
- SMBJ54CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ54CAHE3/52.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,749
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ54CAHE3/52 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 54 V standoff voltage (VWM), 60.0–66.3 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 87.1 V at 6.9 A, and operates across –55 °C to +150 °C junction temperature range - deployed on signal lines of industrial sensor units and automotive ECUs.
For engineers reviewing the SMBJ54CAHE3/52 datasheet, SMBJ54CAHE3/52 pinout, SMBJ54CAHE3/52 application, or SMBJ54CAHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance under surge conditions, thermal resistance data (RθJA = 100 °C/W), and bidirectional TVS design implications for ESD and lightning transient suppression.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ps), low incremental surge resistance, and symmetrical clamping in both polarities. Its 600 W peak pulse power rating is specified per 10/1000 µs waveform with 0.01% duty cycle, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
The device is AEC-Q101 qualified (indicated by HE3 suffix), RoHS-compliant, and rated for repetitive surge events when thermally managed on 5.0 mm × 5.0 mm copper pads. Its VBR temperature coefficient is +0.104 %/°C, ensuring predictable voltage drift across operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown |
| VBR (min/max) | 60.0 V / 66.3 V at IT = 1 mA - ensures reliable turn-on during transients while avoiding false triggering |
| VC @ IPPM | 87.1 V at 6.9 A - clamped voltage seen by protected circuit during full-rated 600 W surge event |
| PPPM | 600 W - peak pulse power handling capability with 10/1000 µs waveform; critical for IEC 61000-4-5 compliance |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive and industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard PCB pad layout; informs heatsinking requirements |
| AEC-Q101 | Qualified - validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - symmetrical terminals suitable for AC-coupled or floating signal line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | One side of bidirectional PN junction; connects to either side of protected line without polarity constraint |
| Cathode | Terminal K | Other side of bidirectional PN junction; functionally identical to Anode in CA-type devices; no band marking |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and floating sensor outputs without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) when properly laid out on PCB |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge lifetime testing per stress test plan |
| MSL Level 1 | Supports standard SMT reflow without baking; compatible with high-volume automated assembly at 260 °C peak |
| Glass passivated junction | Provides stable leakage current (<1 µA at VWM) and long-term parameter stability under humidity and bias stress |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O of pressure/temperature sensors in factory automation cabinets exposed to relay switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to shunt transients before reaching ADC input or microcontroller GPIO. Use Value: Clamps 600 W surges to ≤87.1 V, preventing latch-up or damage to downstream 3.3 V/5 V signal conditioning ICs. |
Use Scenario: Safeguarding LIN bus transceivers and power window motor drivers against load dump and jump-start induced spikes in vehicle door modules. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBAT-referenced signal lines, operating within AEC-Q101 environmental stress limits. Use Value: Maintains <1 µA leakage at 54 V, minimizing standby current impact while surviving 150 °C under-hood thermal cycling. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
|
Use Scenario: Secondary-side DC input protection for PoE-powered network switches subjected to induced surges from nearby AC mains wiring. IC Role / Device Role / Timing Role: Bidirectional clamp between VIN and GND, coordinated with upstream MOV and fuse for staged surge handling. Use Value: 87.1 V clamping voltage ensures downstream 48 V DC-DC converters remain within absolute maximum ratings during transients. |
Use Scenario: Overvoltage guard on CC and VCONN lines of USB-C receptacles in portable speakers and docking stations. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <50 pF) suppressing ESD per IEC 61000-4-2 ±15 kV air/±8 kV contact without signal integrity degradation. Use Value: Fast sub-nanosecond response prevents ESD-induced bit errors or port controller reset during hot-plug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54CA-M3/52 | Same electrical specs and AEC-Q101 qualification; halogen-free construction (HM3 variant), slightly higher cost | No functional difference; preferred where halogen-free compliance is mandated by OEM or regional regulation | Select SMBJ54CA-M3/52 only if halogen-free material declaration is contractually required. |
| SMCJ54CAHE3/52 | Same VWM/VBR/VC, but SMC (DO-214AB) package - 1.5× larger footprint, 1500 W PPPM, RθJA = 35 °C/W | Higher power handling and better thermal performance, but requires PCB layout change and increased board area | Choose SMCJ54CAHE3/52 only when system-level surge tests exceed 600 W or thermal derating demands lower RθJA. |
Compared with SMBJ54CA-M3/52, the SMBJ54CAHE3/52 offers identical protection performance with standard RoHS compliance; versus SMCJ54CAHE3/52, it trades 900 W extra pulse power for 40% smaller PCB footprint and simplified layout - optimal for space-constrained automotive and IoT edge nodes.
Availability
SMBJ54CAHE3/52 is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control module, and telecom power supply input applications requiring stable component supply, AEC-Q101 traceability, and consistent surge performance across production batches.
Supply support for SMBJ54CAHE3/52 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, power efficiency, and automotive-grade qualification.
The SMBJ series targets high-reliability transient suppression in space-constrained, thermally demanding environments - engineered specifically for automotive, industrial, and telecom infrastructure where failure modes must be eliminated through rigorous qualification and process control.
FAQ
What does the "CA" suffix indicate in SMBJ54CAHE3/52?
The "CA" suffix denotes a bidirectional configuration - meaning SMBJ54CAHE3/52 provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional "A" variants, it has no cathode marking and functions identically in either orientation, making it ideal for AC signal lines, differential buses, and floating grounds where polarity cannot be guaranteed.
Is SMBJ54CAHE3/52 suitable for IEC 61000-4-5 surge testing?
Yes, SMBJ54CAHE3/52 is rated for 600 W peak pulse power with a 10/1000 µs waveform - sufficient to meet IEC 61000-4-5 Level 3 (2 kV line-earth) and Level 4 (4 kV line-earth) when implemented with proper PCB layout (e.g., short traces, 5.0 mm × 5.0 mm copper pads per terminal). Its 87.1 V clamping voltage ensures protected ICs remain within safe operating limits during standardized surge events.
How does the HE3 suffix affect SMBJ54CAHE3/52's qualification status?
The HE3 suffix confirms SMBJ54CAHE3/52 is RoHS-compliant and AEC-Q101 qualified - validated for automotive applications including temperature cycling, highly accelerated life testing (HALT), and surge lifetime. This distinguishes it from commercial-grade E3 variants and enables use in engine control units, ADAS sensors, and body electronics where long-term reliability under thermal and mechanical stress is mandatory.
What is the maximum leakage current of SMBJ54CAHE3/52 at its rated standoff voltage?
At VWM = 54 V and TA = 25 °C, SMBJ54CAHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA. This ultra-low leakage preserves battery life in always-on systems and avoids loading effects on high-impedance sensor outputs or reference voltage nodes - critical for precision analog front-ends in industrial measurement equipment.
Can SMBJ54CAHE3/52 replace unidirectional SMBJ54AHE3/52 in an existing design?
No - SMBJ54CAHE3/52 is bidirectional and lacks polarity marking, while SMBJ54AHE3/52 is unidirectional with a cathode band. Substituting them requires verifying circuit topology: bidirectional use is valid only where the protected node floats relative to ground or carries AC signals. In DC-biased lines (e.g., 5 V supply rail), using SMBJ54CAHE3/52 may allow forward conduction during normal operation, risking damage or malfunction.
SMBJ54CAHE3/52 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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 6.9A
- 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)
SMBJ54CAHE3/52 FAQ
1.How can I place an order for SMBJ54CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ54CAHE3/52 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 SMBJ54CAHE3/52 reliable?
The price and inventory of SMBJ54CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ54CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ54CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ54CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ54CAHE3/52?
SMBJ54CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ54CAHE3/52 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 SMBJ54CAHE3/52?
For technical support, including SMBJ54CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ54CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ54CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ54CAHE3/52 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 SMBJ54CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ54CAHE3/52?
All SMBJ54CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ54CAHE3/52, 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 SMBJ54CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ54CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ54CAHE3/52 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 …
