My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ75CHE3/52
;;2.jpg)
- Part No.:
- SMBJ75CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ75CHE3/52.pdf
- Description:
- TVS DIODE 75VWM 134VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,391
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ75CHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and lightning-induced surges on DC power rails and signal lines. It features a 75 V stand-off voltage (VWM), 83.3–92.1 V breakdown voltage (VBR) at 1 mA, 121 V maximum clamping voltage (VC) at 5.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMBJ75CHE3/52 datasheet, SMBJ75CHE3/52 pinout, SMBJ75CHE3/52 application, or SMBJ75CHE3/52 equivalent, key selection criteria include clamping performance under 5.0 A surge, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" 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 fast response (<1 ns) and low incremental surge resistance. Its operation relies on avalanche breakdown above VBR to divert transient energy away from protected circuitry while maintaining stable VWM during normal operation.
The SMBJ75CHE3/52 is rated for -55 °C to +150 °C junction temperature, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and is qualified to AEC-Q101 for automotive applications. Its 600 W peak pulse power capability is specified under repetitive 0.01% duty cycle conditions with derating above TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V/24 V/48 V systems. |
| VBR (min/max) | 83.3 V / 92.1 V at IT = 1.0 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction. |
| VC @ IPPM | 121 V at 5.0 A - Clamping voltage limits downstream IC stress during standardized 10/1000 µs surge events. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform supports IEC 61000-4-5 Level 4 compliance. |
| RθJA | 100 °C/W - Thermal resistance determines allowable power dissipation on standard PCB pad layout (0.2" × 0.2"). |
| TJ max. | +150 °C - Maximum junction temperature enables use in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
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 body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane; carries full surge current during clamping event. |
| Cathode | Protected line connection | Connected to line being protected (e.g., 75 V supply rail); voltage referenced to anode during avalanche conduction. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables protection against high-energy transients per IEC 61000-4-5 without external heatsinking. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring long-term field reliability. |
| Glass passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and consistent VBR over temperature and lifetime. |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns; peak reflow up to 260 °C. |
| Low profile SMB package | Reduces board space vs. SMA/SMB alternatives while maintaining 600 W rating and automated placement compatibility. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 75 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and bulk capacitor. Use Value: Limits voltage excursion to ≤121 V during 5.0 A surge, preventing damage to 100 V-rated MOSFETs and gate drivers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on differential signal pair near connector entry point. Use Value: Clamps 8 kV contact ESD pulses within <1 ns while adding <1 pF parasitic capacitance to preserve signal integrity. |
| Telecom DC Power Input Protection | Consumer Device USB-C Power Path Protection |
|
Use Scenario: Safeguarding 48–75 V PoE++ powered devices against induced surges on Ethernet cabling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input stage upstream of DC-DC converter. Use Value: Absorbs 600 W surge energy without degradation, maintaining 75 V nominal operation and meeting UL 497B recognition. |
Use Scenario: Preventing USB-C port damage from hot-plug voltage overshoot and accidental 20 V adapter misconnection. IC Role / Device Role / Timing Role: Standoff-limited TVS on VBUS line with precise 75 V clamping threshold. Use Value: Blocks >75 V faults while allowing compliant 20 V PD negotiation; RθJA = 100 °C/W enables thermal management on compact PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75AHE3/52 | Same electrical specs and AEC-Q101 qualification; differs only in packaging suffix notation (HE3 vs. HE3/52). | No functional difference; identical use in automotive and industrial designs. | Select SMBJ75AHE3/52 if sourcing from distributors listing that exact P/N variant. |
| SMCJ75AHE3/52 | Higher 1500 W peak pulse power, larger SMC (DO-214AB) package, same VWM/VBR/VC ratings. | Better suited for higher-energy transients where board space allows larger footprint and thermal mass. | Choose SMCJ75AHE3/52 when system-level surge testing exceeds 600 W requirements or thermal budget permits larger case. |
Compared with SMBJ75CHE3/52, SMBJ75AHE3/52 offers identical protection performance in the same SMB package, while SMCJ75AHE3/52 provides 2.5× higher pulse power in a physically larger case-enabling design flexibility across energy and space constraints.
Availability
SMBJ75CHE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer USB-C power path protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ75CHE3/52 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMBJ series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and communications systems demanding AEC-Q101 qualification and repeatable clamping behavior.
FAQ
What is the clamping voltage of SMBJ75CHE3/52 at its rated peak pulse current?
The SMBJ75CHE3/52 has a maximum clamping voltage (VC) of 121 V at 5.0 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured across the device terminals during surge conduction and defines the upper voltage limit imposed on protected circuitry during transient events.
Is SMBJ75CHE3/52 qualified for automotive applications?
Yes, SMBJ75CHE3/52 is AEC-Q101 qualified, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS subsystems. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified construction per Vishay's ordering nomenclature.
What does the "/52" suffix indicate in SMBJ75CHE3/52?
The "/52" suffix in SMBJ75CHE3/52 specifies packaging: 750 pieces per 7-inch plastic tape-and-reel. This is a standard distribution format for SMT assembly and aligns with Vishay's preferred ordering code structure for volume production use.
How does SMBJ75CHE3/52 differ from bidirectional variants like SMBJ75CHE3/52CA?
SMBJ75CHE3/52 is unidirectional with cathode-band polarity, intended for DC rail protection where polarity is fixed. Bidirectional versions (e.g., SMBJ75CHE3/52CA) lack polarity marking and conduct in both directions-used for AC lines or differential signals-but exhibit identical VWM and VC ratings in either direction.
What is the thermal resistance of SMBJ75CHE3/52, and how does it affect layout?
The SMBJ75CHE3/52 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 requires adequate copper area and minimal trace length to maintain TJ ≤ 150 °C during repetitive surge events.
SMBJ75CHE3/52 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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 134V
- Current - Peak Pulse (10/1000µs):
- 4.5A
- 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)
SMBJ75CHE3/52 FAQ
1.How can I place an order for SMBJ75CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ75CHE3/52 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 SMBJ75CHE3/52 reliable?
The price and inventory of SMBJ75CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ75CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ75CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ75CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ75CHE3/52?
SMBJ75CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ75CHE3/52 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 SMBJ75CHE3/52?
For technical support, including SMBJ75CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ75CHE3/52 requirements.
6.How does Aetrix verify that SMBJ75CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ75CHE3/52 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 SMBJ75CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ75CHE3/52?
All SMBJ75CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ75CHE3/52, 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 SMBJ75CHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ75CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ75CHE3/52 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 …
