Is there a pin-compatible replacement for TPD4E1B06DCKR?

While several parts like the SP3002-04JTG and SP3003-04JTG share the same SC70-6 package, they are not confirmed as direct pin-for-pin replacements. Parametric differences, especially leakage current, necessitate a design review before substitution.

What risks should I check before replacing TPD4E1B06DCKR?

Key risks include: 1) Electrical: Ensure the substitute's leakage current and ESD ratings meet your system's requirements. 2) Layout: Verify the pinout is identical. 3) Performance: Higher capacitance can degrade high-speed signal integrity.

TPD4E1B06DCKR Alternatives, Datasheet & Cross Reference | Texas Instruments

The TPD4E1B06DCKR is a 4-channel bidirectional TVS diode array from Texas Instruments, offering ultra-low capacitance (0.7pF) and leakage current (0.5nA) for high-speed interface ESD protection in a compact SC70-6 package.

AI replacement insight

Electrical riskmedium

Leakage current is 1000x higher in the best alternatives. ESD ratings may also be lower. Must be verified.

Package risklow

Alternatives exist in the same SC70-6 package, but pinout must be confirmed via datasheet.

Sourcing risklow

Multiple manufacturers offer similar 4-channel TVS arrays in this package.

Can it be replaced directly?

No direct pin-for-pin replacement has been identified. The SP3002-04JTG is a close functional match in the same package, but has significantly higher leakage current which must be evaluated.

Best replacement path

The Littelfuse SP3002-04JTG is a strong functional alternative, but requires verification of its higher leakage current before use.

Main risk

The primary risk when substituting is the significant increase in leakage current, which can affect power consumption and signal integrity in sensitive applications.

Recommended alternatives

Functionally similar 4-channel TVS array in the same SC70-6 package, but with higher leakage current.

View details

Alternative comparison matrix

Feature / factor	TPD4E1B06DCKR	SP3002-04JTG	SP3003-04JTG	Compatibility / risk
Package	SC70-6	SC70-6	SC70-6	SC70-6 — Package and pin count match.; SP3003-04JTG: Package and pin count match.
Pinout	Not specified	Not specified	Not specified	Not specified — Pinout must be verified from datasheets.; SP3003-04JTG: Pinout must be verified from datasheets.
Channels	4, Bidirectional	4, Bidirectional	4, Bidirectional	4, Bidirectional — Channel count and polarity match.; SP3003-04JTG: Channel count and polarity match.
Voltage	5.5V (VRWM)	6.0V (VRWM)	-	6.0V (VRWM) — Candidate has slightly higher reverse standoff voltage.
Capacitance	0.7 pF	0.85 pF	0.65 pF	0.85 pF / 0.65 pF — Capacitance is very similar, suitable for high-speed lines.; SP3003-04JTG: Capacitance is very similar.
Leakage Current	0.5 nA	0.5 µA	0.5 µA (max)	0.5 µA / 0.5 µA (max) — Candidate leakage is significantly higher, may impact low-power designs.; SP3003-04JTG: Candidate leakage is significantly higher.
Esd Protection	±12kV Contact	-	±8kV Contact	±8kV Contact — Lower contact ESD rating is a downgrade.

Application & sourcing insights

Questions & answers

The Littelfuse SP3002-04JTG is a strong alternative, matching key parameters like package, channel count, and ESD rating. However, its leakage current is higher, which requires careful evaluation for your specific application.