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Vishay General Semiconductor - Diodes Division SMBJ90CHE3/52
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- Part No.:
- SMBJ90CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90CHE3/52.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,734
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Product details
Overview
SMBJ90CHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 90 V stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives.
For engineers reviewing the SMBJ90CHE3/52 datasheet, SMBJ90CHE3/52 pinout, SMBJ90CHE3/52 application, or SMBJ90CHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and RoHS-compliant packaging details directly applicable to automotive-grade ESD and surge protection design.
Technical Context
This unidirectional TVS operates as a clamping device that remains non-conductive below 90 V reverse stand-off voltage and rapidly transitions to low-impedance conduction above its 100 V minimum breakdown threshold. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and repeatable clamping behavior under repetitive transients.
The SMBJ90CHE3/52 is rated for 600 W peak pulse power (10/1000 µs), supports 100 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits a temperature coefficient of VBR at +0.106 %/°C - enabling predictable voltage margining across –55 °C to +150 °C operating junction temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating ceiling for protected circuitry. |
| VBR (min) | 100 V at 1.0 mA test current - Minimum voltage at which device enters avalanche breakdown; sets lower bound for clamping onset. |
| VC (max) | 146 V at IPPM = 4.1 A - Maximum clamped voltage seen by downstream components during 10/1000 µs transient; determines voltage stress on ICs/MOSFETs. |
| PPPM | 600 W - Peak transient energy absorption capacity using standard 10/1000 µs waveform; validates suitability for IEC 61000-4-5 Level 3/4 surges. |
| ID (max) | 1.0 µA at VWM - Reverse leakage current at rated stand-off voltage; critical for low-power sensor and battery-backed circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs heatsinking requirements for sustained surge duty. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path when cathode is tied to protected line. |
| Cathode | Protected-line connection terminal | Connected to input/power/signal line requiring transient suppression; conducts surge current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power domains, with extended temperature cycling and humidity testing. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (open-circuit)/2 kA (short-circuit) without degradation. |
| Glass passivated junction | Ensures stable VBR and low leakage over time and temperature, eliminating parameter drift in long-life industrial deployments. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving protection margin for 3.3 V/5 V logic interfaces. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines using J-STD-020-compliant processes. |
Applications
| Industrial Motor Drives | Automotive Power Distribution Units |
|---|---|
|
Use Scenario: Protection of gate drivers and microcontrollers against inductive kickback from 24 V DC solenoids and relay coils. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between MOSFET gate and source, referenced to local ground plane. Use Value: Limits transient voltage to ≤146 V during 100 A coil turn-off events, preventing gate oxide rupture in 60 V-rated logic-level MOSFETs. |
Use Scenario: Input rail protection in 12 V/24 V automotive PDUs handling load-dump and jump-start transients. IC Role / Device Role / Timing Role: Primary front-end TVS on main battery feed, upstream of DC-DC converters and fuse boxes. Use Value: Clamps 35 V load-dump spikes to <146 V within nanoseconds, preserving downstream PMICs and CAN transceivers per ISO 7637-2 Pulse 5a. |
| Telecom Base Station Power Supplies | Industrial PLC Digital I/O Modules |
|
Use Scenario: Surge protection on -48 V DC telecom rectifier outputs exposed to lightning-induced surges on outdoor feeder lines. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-rail, anode-to-ground on secondary side of isolation transformers. Use Value: Absorbs 600 W pulses without failure, maintaining output regulation during repeated 10/1000 µs transients per ITU-T K.20/21. |
Use Scenario: Protection of 24 V digital input channels against field-wiring induced ESD and surge coupling in factory automation systems. IC Role / Device Role / Timing Role: TVS placed at connector entry point, shunting transients before optocoupler input stages. Use Value: Limits voltage to <146 V during ±4 kV contact ESD (IEC 61000-4-2), preventing latch-up in industrial-grade microcontrollers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90AHE3/52 | Same electrical specs and AEC-Q101 qualification; differs only in ordering suffix (HE3 vs. HE3/52 denotes tape-and-reel packaging variant). | No functional difference; identical use in automotive and industrial designs. | Select SMBJ90AHE3/52 if sourcing from standard 750-unit 7" reel; SMBJ90CHE3/52 is functionally identical and interchangeable. |
| SMAJ90AHE3/A | Lower peak pulse power (400 W vs. 600 W); SMA package (DO-214AC) with higher RθJA (140 °C/W) and smaller pad area. | Not suitable for high-energy surge environments (e.g., load dump); limited to low-power signal lines or secondary-side protection. | Choose SMAJ90AHE3/A only where board space is constrained and surge threat level is ≤400 W; SMBJ90CHE3/52 provides superior energy handling and thermal performance. |
Compared with SMBJ90AHE3/52, SMBJ90CHE3/52 offers identical protection performance with standardized reel packaging; versus SMAJ90AHE3/A, it delivers 50 % higher surge energy rating and 29 % lower thermal resistance - making it the preferred choice for primary-side 24 V/48 V rail protection in harsh environments.
Availability
SMBJ90CHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution units, telecom base station power supplies, and PLC digital I/O modules requiring stable component supply with AEC-Q101 validation and full traceability.
Supply support for SMBJ90CHE3/52 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, automotive qualification, and high-volume manufacturability.
The SMBJ series is engineered for high-energy transient suppression in demanding environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SMBJ90CHE3/52 at its rated peak pulse current?
The SMBJ90CHE3/52 has a maximum clamping voltage (VC) of 146 V at its specified peak pulse current (IPPM) of 4.1 A using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ90CHE3/52 maintains this clamping performance across its full operating temperature range.
Is SMBJ90CHE3/52 qualified for automotive applications?
Yes, SMBJ90CHE3/52 is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. It undergoes rigorous stress testing including temperature cycling, humidity bias, and mechanical shock - validating its suitability for under-hood and chassis-mounted automotive electronics such as body control modules and power distribution units.
What is the reverse leakage current specification for SMBJ90CHE3/52 at its stand-off voltage?
The SMBJ90CHE3/52 specifies a maximum reverse leakage current (ID) of 1.0 µA at its 90 V stand-off voltage (VWM), tested at TA = 25 °C. This low leakage ensures minimal power loss in always-on circuits and preserves accuracy in high-impedance sensor interfaces. Leakage remains within specification across the full –55 °C to +150 °C junction temperature range.
How does the SMBJ90CHE3/52 package compare to SMAJ-series TVS diodes in thermal performance?
The SMBJ90CHE3/52 uses the SMB (DO-214AA) package with a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on standard 0.2" × 0.2" copper pads, whereas SMAJ-series devices in DO-214AC packages exhibit RθJA ≈ 140 °C/W. This 29 % lower thermal resistance allows the SMBJ90CHE3/52 to sustain higher surge repetition rates and operate reliably in higher ambient temperatures than SMAJ90AHE3/A.
Can SMBJ90CHE3/52 be used in bidirectional configurations?
No, SMBJ90CHE3/52 is a unidirectional TVS diode, as indicated by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., SMBJ90CA). Using SMBJ90CHE3/52 in reverse-biased configurations risks permanent damage due to forward conduction during negative transients; always select SMBJ90CHE3/52 only for single-polarity rail protection.
SMBJ90CHE3/52 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 160V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- 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)
SMBJ90CHE3/52 FAQ
1.How can I place an order for SMBJ90CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90CHE3/52 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 SMBJ90CHE3/52 reliable?
The price and inventory of SMBJ90CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ90CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90CHE3/52?
SMBJ90CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90CHE3/52 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 SMBJ90CHE3/52?
For technical support, including SMBJ90CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90CHE3/52 requirements.
6.How does Aetrix verify that SMBJ90CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ90CHE3/52 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 SMBJ90CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ90CHE3/52?
All SMBJ90CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90CHE3/52, 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 SMBJ90CHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ90CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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