PEHA-3000 Equivalent & Substitute Parts

Part Overview

The PEHA-3000 is a thumbwheel switch with hexadecimal output manufactured by ZF Electronics. This panel-mount, snap-in component provides 0.1A switching capacity at 50VAC/DC with a single section displaying characters 0–9 and A–F. The product is classified as obsolete, making identification of compatible substitute components essential for system maintenance, repair, and redesign applications where continued supply cannot be guaranteed.

Key Parameters

Parameter	Value
Manufacturer Part Number	PEHA-3000
Manufacturer	ZF Electronics
Output Code	Hexadecimal
Read Out Range	0 ~ 9, A ~ F
Number of Sections	1
Contact Rating	0.1A @ 50VAC/DC
Actuator Type	Pushwheel
Mounting Type	Panel Mount, Snap-In
Termination Style	Card Edge/Solder Pad
Display Character Height	0.134" (3.40mm)
Section Width	0.300" (7.62mm)
Depth Behind Flange	32.00mm
Operating Temperature Range	-20°C ~ 80°C
Color	Black
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the PEHA-3000 is determined by strict alignment of the following critical parameters:

Output Code & Read Out: Hexadecimal output with character range 0–9, A–F
Number of Sections: Single section configuration
Contact Rating: 0.1A switching capacity
Actuator Type: Pushwheel mechanism
Mounting Configuration: Panel mount with snap-in installation
Termination Style: Card edge/solder pad connection
Physical Dimensions: Display height 0.134" (3.40mm), section width 0.300" (7.62mm), depth 32.00mm
Operating Temperature: -20°C ~ 80°C range
Compliance: ROHS3 compliance required

The SMCD301AK2 manufactured by APEM Inc. meets all substitution criteria with one exception: contact rating is specified at 0.1A @ 40VAC/DC, representing a 10V reduction from the original 50VAC/DC specification. This voltage differential must be evaluated against application requirements.

Parameter Comparison

Parameter	PEHA-3000 (ZF Electronics)	SMCD301AK2 (APEM Inc.)
Output Code	Hexadecimal	Hexadecimal
Read Out Range	0 ~ 9, A ~ F	0 ~ 9, A ~ F
Number of Sections	1	1
Contact Rating	0.1A @ 50VAC/DC	0.1A @ 40VAC/DC
Actuator Type	Pushwheel	Pushwheel
Mounting Type	Panel Mount, Snap-In	Panel Mount, Snap-In
Termination Style	Card Edge/Solder Pad	Card Edge/Solder Pad
Display Character Height	0.134" (3.40mm)	0.134" (3.40mm)
Section Width	0.300" (7.62mm)	0.300" (7.62mm)
Depth Behind Flange	32.00mm	32.00mm
Operating Temperature Range	-20°C ~ 80°C	-20°C ~ 80°C
Color	Black	Black
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active

Engineering Selection Recommendations

The SMCD301AK2 is functionally compatible with the PEHA-3000 for applications operating at or below 40VAC/DC. Both components maintain ROHS3 compliance and identical mechanical form factors, enabling direct panel-mount substitution without enclosure modification.

The SMCD301AK2 carries active product status with established supply chain availability, contrasting with the obsolete PEHA-3000. The substitute component features documented contact material (Copper Tin Alloy) and finish (Gold), providing enhanced corrosion resistance and contact reliability compared to the original part's unspecified contact properties.

Selection of the SMCD301AK2 is appropriate for new designs and maintenance applications where system voltage does not exceed 40VAC/DC. Applications requiring the full 50VAC/DC rating of the original PEHA-3000 require alternative component evaluation outside the provided substitute list.

Frequently Asked Questions (FAQ)

Q: Can the SMCD301AK2 directly replace the PEHA-3000 in all applications?

A: Direct substitution is valid for applications operating at 40VAC/DC or below. Applications requiring 50VAC/DC operation must evaluate the voltage differential against specific circuit requirements. Mechanical compatibility is confirmed across all mounting and termination parameters.

Q: What is the significance of the contact rating voltage difference?

A: The PEHA-3000 is rated for 0.1A @ 50VAC/DC, while the SMCD301AK2 is rated for 0.1A @ 40VAC/DC. This 10V reduction represents the maximum voltage at which the substitute component maintains its specified 0.1A switching capacity. Applications operating below this threshold experience no functional limitation.

Q: Are the physical dimensions identical between the two components?

A: Yes. Display character height (0.134" / 3.40mm), section width (0.300" / 7.62mm), and depth behind flange (32.00mm) are identical. Panel cutout dimensions and snap-in mounting configurations are compatible, eliminating the need for enclosure redesign.

Q: What packaging differences exist between these components?

A: The PEHA-3000 packaging specification is not provided in the available data. The SMCD301AK2 is supplied in tray packaging. Confirm packaging requirements with your procurement specification before component ordering.

Q: How do the contact materials compare?

A: The PEHA-3000 contact material and finish are not specified. The SMCD301AK2 features Copper Tin Alloy contacts with Gold finish, providing documented corrosion resistance and contact reliability characteristics suitable for industrial panel-mount applications.

Q: Are both components RoHS compliant?

A: Yes. Both the PEHA-3000 and SMCD301AK2 are ROHS3 compliant, meeting current environmental and hazardous substance restrictions for electronic components.

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