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Vishay General Semiconductor - Diodes Division TPSMA22HE3/61T
- Part No.:
- TPSMA22HE3/61T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA22HE3/61T.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,101
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Product details
Overview
TPSMA22HE3/61T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for high-reliability overvoltage protection in automotive and industrial power rails. It features a 22 V breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 400 W peak pulse power (10/1000 µs), 185 °C maximum junction temperature, and SMA (DO-214AC) package with cathode band polarity marking - used to protect MOSFETs and ICs against inductive switching transients and lightning surges.
For engineers reviewing the TPSMA22HE3/61T datasheet, TPSMA22HE3/61T pinout, TPSMA22HE3/61T application, or TPSMA22HE3/61T equivalent, key selection criteria include clamping voltage (VC = 30.6 V at IPPM), unidirectional polarity, AEC-Q101 qualification status, thermal derating above 25 °C, and compatibility with J-STD-020 MSL level 1 reflow profiles.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping performance across -65 °C to +185 °C operating range. Its low incremental surge resistance and fast response time enable effective suppression of sub-microsecond transients induced by relay switching or ESD events.
The device operates exclusively in unidirectional mode with a defined cathode terminal, requiring correct orientation in series with protected lines. Its 1.0 W steady-state power dissipation and 40 A non-repetitive forward surge rating support robust operation under intermittent fault conditions without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V at 1 mA - defines precise voltage threshold at which avalanche conduction begins under controlled test conditions |
| VWM | 18.8 V - maximum continuous reverse working voltage before leakage exceeds 1 µA; sets safe DC bias limit for protected line |
| VC at IPPM | 30.6 V at 13.1 A - clamped voltage during 400 W transient event; determines worst-case overvoltage seen by downstream circuitry |
| PPPM | 400 W (10/1000 µs waveform) - peak transient energy absorption capacity; defines survivability against standardized surge pulses |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-temperature industrial enclosures without derating |
| Polarity | Unidirectional - requires correct anode/cathode placement; blocks reverse current until VBR, conducts forward like a rectifier beyond VF |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and matte tin-plated leads compliant with J-STD-002 |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: molded epoxy body, cathode band marking on one end, and two coplanar terminals suitable for reflow soldering on PCB copper pads (minimum 5.0 mm × 5.0 mm per terminal).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground when VLINE exceeds VBR |
| Anode | Reference return path | Typically tied to system ground or low-impedance return plane; completes current path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Junction temperature capability | Rated up to +185 °C - supports placement near heat-generating components without derating loss |
| Clamping ratio (VC/VBR) | ~1.39 - indicates tight voltage control during surge, minimizing stress on downstream MOSFET gate oxides or logic inputs |
| MSL Level 1 compliance | Safe for standard SMT reflow up to 260 °C peak, eliminating moisture sensitivity handling requirements |
| Low leakage at VWM | <1 µA at 18.8 V and 25 °C - avoids parasitic loading on high-impedance sensor or reference circuits |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power supply lines from load-dump transients and alternator ripple spikes in engine control units. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between VBAT and ground, triggered only during overvoltage events >22 V. Use Value: Limits peak rail voltage to ≤30.6 V during 400 W surges, preventing damage to downstream PMICs and microcontrollers rated for 36 V absolute maximum. |
Use Scenario: Shielding analog output lines of pressure sensors in factory automation systems from ESD and relay-induced transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected in parallel with sensor output to shunt fast transients before reaching ADC input stage. Use Value: Clamps 8 kV contact ESD pulses within <1 ns, maintaining signal integrity and avoiding latch-up in precision instrumentation amplifiers. |
| Telecom DC Power Input Protection | Consumer Device USB Port Surge Suppression |
Use Scenario: Safeguarding 48 V PoE-powered equipment front-end converters against lightning-induced surges on outdoor Ethernet cables. IC Role / Device Role / Timing Role: Primary-level TVS mounted at board edge, upstream of DC-DC converter input filter. Use Value: Absorbs 10/1000 µs surges up to 400 W without degradation, preserving converter reliability in telecom infrastructure cabinets. |
Use Scenario: Adding secondary-level surge protection to USB Type-C VBUS lines in portable monitors exposed to accidental hot-plug events. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and GND, sized to handle 100 A surge peaks without thermal failure. Use Value: Maintains <1 µA leakage at 20 V nominal VBUS, ensuring no impact on USB PD negotiation or charging efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Same VBR range (20.9–23.1 V), identical SMA package, but not AEC-Q101 qualified; lower TJ max. (150 °C) | Limited to commercial/industrial use; unsuitable for under-hood automotive deployment | Select SMAJ22A only if AEC-Q101 compliance and 185 °C operation are not required |
| TPSMA22AHM3/61T | Halogen-free variant of same base device; identical electrical specs, same AEC-Q101 qualification, same thermal rating | Required where halogen-free material compliance (e.g., IEC 61249-2-21) is mandated in final assembly | Choose TPSMA22AHM3/61T when RoHS + halogen-free certification is specified in BOM |
Compared with SMAJ22A and TPSMA22AHM3/61T, the TPSMA22HE3/61T uniquely combines AEC-Q101 qualification, 185 °C junction rating, and RoHS compliance without halogen-free requirement - making it optimal for cost-sensitive automotive modules needing full qualification but no halogen restriction.
Availability
TPSMA22HE3/61T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMA22HE3/61T 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 high-reliability diodes, rectifiers, and protection devices for demanding environments.
The TPSMAxxA family was engineered specifically for AEC-Q101-compliant transient suppression in automotive power distribution and industrial control systems where thermal stability and surge robustness are critical.
FAQ
What is the exact breakdown voltage range for TPSMA22HE3/61T?
The TPSMA22HE3/61T has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tolerance ensures consistent clamping behavior across production lots and supports reliable design margining in 24 V systems where overvoltage thresholds must be tightly controlled.
Is TPSMA22HE3/61T suitable for automotive under-hood applications?
Yes, TPSMA22HE3/61T is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood automotive applications such as engine control units, body control modules, and ADAS power supplies where ambient temperatures exceed 125 °C and reliability under thermal cycling is mandatory.
What is the clamping voltage of TPSMA22HE3/61T at its rated peak pulse current?
The TPSMA22HE3/61T clamps to a maximum of 30.6 V at its rated peak pulse current of 13.1 A (corresponding to 400 W with a 10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Does TPSMA22HE3/61T have bidirectional capability?
No, TPSMA22HE3/61T is unidirectional only. It conducts avalanche current when reverse-biased above VBR, but behaves as a standard silicon diode in forward bias. For AC or bipolar transient protection, a separate bidirectional TVS (e.g., TPSMA22CA) or back-to-back configuration would be required.
What packaging and moisture sensitivity level does TPSMA22HE3/61T ship in?
TPSMA22HE3/61T ships in 7" plastic tape-and-reel format (1800 units per reel) and is rated MSL Level 1 per J-STD-020, meaning it can withstand peak reflow temperatures up to 260 °C without baking or special handling - simplifying SMT integration into high-volume manufacturing lines.
TPSMA22HE3/61T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 12.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
TPSMA22HE3/61T FAQ
1.How can I place an order for TPSMA22HE3/61T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA22HE3/61T 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 TPSMA22HE3/61T reliable?
The price and inventory of TPSMA22HE3/61T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA22HE3/61T is usually 5 days.
3.What payment methods are accepted for TPSMA22HE3/61T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA22HE3/61T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA22HE3/61T?
TPSMA22HE3/61T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA22HE3/61T 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 TPSMA22HE3/61T?
For technical support, including TPSMA22HE3/61T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA22HE3/61T requirements.
6.How does Aetrix verify that TPSMA22HE3/61T is sourced from the original manufacturer or authorized distributors?
All TPSMA22HE3/61T 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 TPSMA22HE3/61T meets industry standards.
7.What is the process for return or replacement of TPSMA22HE3/61T?
All TPSMA22HE3/61T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA22HE3/61T, 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 TPSMA22HE3/61T part is unused and in its original packaging.
Return procedure for TPSMA22HE3/61T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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