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Vishay General Semiconductor - Diodes Division P6SMB7.5AHE3/5B
- Part No.:
- P6SMB7.5AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5AHE3/5B.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,918
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Product details
Overview
P6SMB7.5AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power (10/1000 μs), 6.4 V stand-off voltage (VWM), and 11.3 V maximum clamping voltage (VC) at 53.1 A peak pulse current. It protects sensitive ICs and MOSFETs against inductive switching transients and ESD in automotive and industrial power rails.
For engineers reviewing the P6SMB7.5AHE3/5B datasheet, P6SMB7.5AHE3/5B pinout, P6SMB7.5AHE3/5B application, or P6SMB7.5AHE3/5B equivalent, key selection criteria include clamping voltage margin relative to protected device's absolute maximum rating, unidirectional polarity alignment with DC bias, thermal derating above 25 °C, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias below 6.4 V, it presents <1 μA reverse leakage; when transient voltage exceeds 7.13–7.88 V breakdown (VBR at 10 mA), it avalanches rapidly (<1 ns response) to clamp the line at ≤11.3 V. Its glass-passivated junction ensures stable breakdown and low surge resistance.
The device is designed for PCB-level protection of DC power inputs and signal lines where space-constrained SMB packaging and automated placement are required. It meets MSL Level 1 (260 °C reflow peak) and supports AEC-Q101 qualification via HE3 suffix - confirmed for automotive-grade reliability per revision B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.4 V - Maximum continuous reverse voltage before significant leakage; sets upper limit for safe DC operating range. |
| VBR (Breakdown Voltage) | 7.13–7.88 V at 10 mA - Confirmed avalanche onset range; ensures reliable triggering before protected circuit exceeds safe thresholds. |
| VC (Clamping Voltage) | 11.3 V at IPPM = 53.1 A - Measured peak voltage during 600 W transient; defines worst-case stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs waveform) - Standardized surge energy handling capacity; validates robustness against IEC 61000-4-5 Level 4 surges. |
| TJ max. | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments with proper PCB copper thermal relief. |
| AEC-Q101 Qualified | Yes (HE3 suffix + revision B) - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient; requires ≥5.0 mm × 5.0 mm copper pads per terminal for rated power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band; unidirectional polarity mandates correct orientation relative to DC rail polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or lower-potential node; completes shunt path during overvoltage event. |
| Cathode | High-side connection point | Connected to protected line (e.g., 5 V rail); reverse-biased during normal operation; conducts when Vline > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge immunity up to 4 kV (line-to-ground) without external series impedance. |
| Glass passivated chip junction | Ensures stable VBR over lifetime and temperature; eliminates risk of junction degradation under repetitive surge stress. |
| AEC-Q101 qualified (HE3_B) | Validates suitability for automotive power modules, body control units, and ADAS sensor interfaces requiring zero-failure field reliability. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without popcorn cracking or delamination; no pre-bake required. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND, upstream of LDO input. Use Value: Clamps transients to ≤11.3 V, preventing damage to 16 V-rated regulators and microcontrollers while surviving 600 W pulses. |
Use Scenario: Analog output lines (4–20 mA) from pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS mounted across signal and return lines to suppress EFT bursts (IEC 61000-4-4) and cable coupling noise. Use Value: Sub-12 V clamping prevents op-amp input stage saturation and maintains 12-bit ADC accuracy during EMC testing. |
| Consumer USB Power Input Protection | Telecom DC Feeder Line Protection |
|
Use Scenario: 5 V USB-C PD input stage in portable medical monitors subjected to human-body ESD (IEC 61000-4-2 ±15 kV contact). IC Role / Device Role / Timing Role: First-line defense between connector and buck converter input capacitor. Use Value: 11.3 V clamping limits stress on 20 V-rated input MOSFETs; 1 ns response ensures ESD energy is diverted before gate oxide breakdown. |
Use Scenario: -48 V DC feeder lines in telecom base station remote radio units exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (anode-to-rail, cathode-to-GND) on each polarity leg of split-rail supply. Use Value: 600 W rating handles multi-kA induced currents; AEC-Q101 qualification ensures long-term stability in outdoor cabinet thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | Same SMB package, but lower PPPM (400 W), higher VC (12.0 V at 32.9 A), non-AEC-Q101. | Limited to commercial-grade consumer or industrial equipment without automotive qualification requirements. | Select SMAJ7.5A only if surge threat level is ≤IEC 61000-4-5 Level 3 and AEC-Q101 is not mandated. |
| 1.5SMC7.5A | Higher-power SMC package (1500 W), same VWM/VBR/VC specs, but larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm). | Requires PCB redesign; suitable where higher surge margin is needed and space allows. | Choose 1.5SMC7.5A when system-level testing reveals marginal clamping margin with P6SMB7.5AHE3/5B under worst-case surge repetition. |
Compared with SMAJ7.5A, P6SMB7.5AHE3/5B delivers 50 % higher surge power headroom and automotive qualification; versus 1.5SMC7.5A, it offers identical electrical protection in 45 % less board area - critical for compact ECUs and sensor nodes.
Availability
P6SMB7.5AHE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power systems requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for P6SMB7.5AHE3/5B 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 diodes, rectifiers, and protection devices with emphasis on reliability, power efficiency, and automotive-grade validation.
The P6SMB Series targets high-volume, space-constrained DC rail protection in automotive, industrial, and telecom applications - engineered for automated assembly, thermal robustness, and repeatable clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of P6SMB7.5AHE3/5B and how is it measured?
The clamping voltage (VC) of P6SMB7.5AHE3/5B is 11.3 V, measured at a peak pulse current (IPPM) of 53.1 A using a standardized 10/1000 μs double-exponential waveform. This value represents the maximum voltage seen across the device terminals during a 600 W transient event and is critical for ensuring protected ICs remain within their absolute maximum ratings. The P6SMB7.5AHE3/5B achieves this clamping performance due to its low incremental surge resistance and optimized silicon junction design.
Is P6SMB7.5AHE3/5B AEC-Q101 qualified, and what does the "HE3/5B" suffix indicate?
Yes, P6SMB7.5AHE3/5B is AEC-Q101 qualified: the "HE3" denotes RoHS-compliant and AEC-Q101-qualified construction, while "/5B" specifies 13-inch tape-and-reel packaging with 3200 units per reel and revision B of the automotive qualification. This makes P6SMB7.5AHE3/5B suitable for use in automotive power modules, body controllers, and ADAS sensor interfaces where zero-failure field reliability is mandatory. The qualification covers HTOL, temperature cycling, and ESD testing per AEC-Q101 Rev D.
How does the thermal performance of P6SMB7.5AHE3/5B affect PCB layout?
P6SMB7.5AHE3/5B has a junction-to-ambient thermal resistance (RθJA) of 100 °C/W, which assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain rated 600 W pulse capability and avoid thermal runaway, designers must allocate ≥25 mm² of 2-oz copper per pad, with internal thermal vias recommended for sustained surge duty cycles. Without adequate copper, derating curves in Figure 2 require reducing IPPM by up to 50 % at 85 °C ambient - directly impacting protection margin. The P6SMB7.5AHE3/5B's SMB footprint enables this layout while fitting tight spacing constraints.
Can P6SMB7.5AHE3/5B be used in bidirectional configurations?
No, P6SMB7.5AHE3/5B is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P6SMB7.5CA). Using P6SMB7.5AHE3/5B in a bidirectional application would result in forward conduction during negative transients, causing failure. For AC or dual-polarity signal lines, select P6SMB7.5CAHE3/5B instead - it provides symmetrical clamping in both directions with identical VWM (6.4 V) and VC (11.3 V) specifications. The P6SMB7.5AHE3/5B must be oriented with cathode toward the positive rail.
What is the maximum reverse leakage current of P6SMB7.5AHE3/5B at its stand-off voltage?
The maximum reverse leakage current (ID) of P6SMB7.5AHE3/5B is 500 μA at its stand-off voltage (VWM) of 6.4 V and ambient temperature of 25 °C. This low leakage ensures minimal power loss in always-on automotive modules and avoids false triggering of downstream undervoltage lockout circuits. Leakage remains below 100 μA at 5.5 V, making P6SMB7.5AHE3/5B compatible with 5 V logic rails where quiescent current budget is constrained. The P6SMB7.5AHE3/5B maintains this specification across its full operating temperature range (-65 °C to +150 °C), verified per AEC-Q101 stress testing.
P6SMB7.5AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 53.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB7.5AHE3/5B FAQ
1.How can I place an order for P6SMB7.5AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5AHE3/5B 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 P6SMB7.5AHE3/5B reliable?
The price and inventory of P6SMB7.5AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB7.5AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5AHE3/5B?
P6SMB7.5AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5AHE3/5B 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 P6SMB7.5AHE3/5B?
For technical support, including P6SMB7.5AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5AHE3/5B requirements.
6.How does Aetrix verify that P6SMB7.5AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5AHE3/5B 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 P6SMB7.5AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB7.5AHE3/5B?
All P6SMB7.5AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5AHE3/5B, 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 P6SMB7.5AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB7.5AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5AHE3/5B Tags
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