TPSMA6L18A 600W unidirectional TVS diode with 18V reverse standoff voltage and 29.2V clamping voltage. Surface mount in DO-221AC (SMA flat leads) package.
Mfr Part #:

TPSMA6L18A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
600W unidirectional TVS diode with 18V reverse standoff voltage and 29.2V clamping voltage. Surface mount in DO-221AC (SMA flat leads) package.
Total Stock: 6,000 pcs
$ Price Range: $0.16 - $0.77

TPSMA6L18A Available from 1 distributor

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Non-Authorised
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TPSMA6L18A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Clamping Voltage
Current
ESD Protection (Air)
ESD Protection (Contact)
Halogen Free
Industrial Grade
Junction and Storage Temperature Range
Lead Style
Maximum Instantaneous Forward Voltage
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Response Time
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Finish
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage

TPSMA6L18A Description

Short technical summary and product information.

The Littelfuse TPSMA6L18A is a 600W unidirectional transient voltage suppression (TVS) diode designed to protect sensitive electronic circuits from voltage transients induced by load dump and other transient events. It features a reverse standoff voltage of 18V and a maximum clamping voltage of 29.2V at a peak pulse current of 20.6A.

 

This TVS diode is automotive grade and AEC Q101 qualified, making it suitable for high-reliability applications in automotive and industrial environments. It offers IEC-61000-4-2 ESD protection up to 30kV (air and contact). The device is packaged in a low-profile DO-221AC (SMA flat leads) surface mount package with a height of less than 1.1mm, providing compatibility with standard SMA and SMB footprints.

 

Key electrical characteristics include a peak forward surge current of 60A (8.3ms single half sine wave), maximum instantaneous forward voltage of 3.5V at 25A, and a response time of 1.0ns. The operating temperature range is -50°C to 150°C, with a junction temperature range of -65°C to 150°C. The device is RoHS3 compliant, REACH unaffected, and halogen free.

TPSMA6L18A Quick Information

Product Type: TVS Diode
Series: TPSMA6L
Canonical Name: Littelfuse TPSMA6L18A Unidirectional TVS Diode, 600W, 18V Reverse Standoff, DO-221AC
Subcategory: Unidirectional TVS Diode

TPSMA6L18A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

TPSMA6L18A Estimated Pricing

Qty Low High
1+ $0.77 $0.77
10+ $0.47 $0.47
100+ $0.31 $0.31
500+ $0.23 $0.23
1,000+ $0.21 $0.21
3,000+ $0.16 $0.16
6,000+ $0.16 $0.16

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPSMA6L18A Features

  • 600W peak pulse power dissipation.
  • 18V reverse standoff voltage.
  • 29.2V clamping voltage at 20.6A.
  • Automotive grade AEC Q101 qualified.
  • Low profile DO-221AC package (1.1mm).

TPSMA6L18A Applications

  • Protects I/O interfaces from voltage transients.
  • Ideal for automotive load dump protection.
  • Suitable for VCC bus transient suppression.
  • Used in high reliability industrial electronics.

TPSMA6L18A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the TPSMA6L18A?

18V.

What is the clamping voltage of this TVS diode?

29.2V at 20.6A peak pulse current.

What is the peak pulse current rating?

20.6A for a 10/1000µs waveform.

What package does the TPSMA6L18A come in?

DO-221AC (SMA flat leads) surface mount package.

Is this TVS diode automotive qualified?

Yes, it is automotive grade and AEC Q101 qualified.

What is the ESD protection level?

IEC-61000-4-2 ESD protection of 30kV (air) and 30kV (contact).

What is the peak forward surge current rating?

60A for an 8.3ms single half sine wave.

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